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How to use main method of main Package

Best Mock code snippet using main.main

compile_test.go

Source:compile_test.go

...87				require.NoError(t, entry.Normalize())88				require.NoError(t, entry.Validate())89			}90			req := CompileRequest{91				ServiceName:           "main",92				EvaluateInNamespace:   "default",93				EvaluateInDatacenter:  "dc1",94				EvaluateInTrustDomain: "trustdomain.consul",95				UseInDatacenter:       "dc1",96				Entries:               tc.entries,97			}98			if tc.setup != nil {99				tc.setup(&req)100			}101			res, err := Compile(req)102			if tc.expectErr != "" {103				require.Error(t, err)104				require.Contains(t, err.Error(), tc.expectErr)105				_, ok := err.(*structs.ConfigEntryGraphError)106				if tc.expectGraphErr {107					require.True(t, ok, "%T is not a *ConfigEntryGraphError", err)108				} else {109					require.False(t, ok, "did not expect a *ConfigEntryGraphError here: %v", err)110				}111			} else {112				require.NoError(t, err)113				// Avoid requiring unnecessary test boilerplate and inject these114				// ourselves.115				tc.expect.ServiceName = "main"116				tc.expect.Namespace = "default"117				tc.expect.Datacenter = "dc1"118				if tc.expectCustom {119					require.NotEmpty(t, res.CustomizationHash)120					res.CustomizationHash = ""121				} else {122					require.Empty(t, res.CustomizationHash)123				}124				require.Equal(t, tc.expect, res)125				require.Equal(t, tc.expectIsDefault, res.IsDefault())126			}127		})128	}129}130func testcase_JustRouterWithDefaults() compileTestCase {131	entries := newEntries()132	setServiceProtocol(entries, "main", "http")133	entries.AddRouters(134		&structs.ServiceRouterConfigEntry{135			Kind: "service-router",136			Name: "main",137		},138	)139	expect := &structs.CompiledDiscoveryChain{140		Protocol:  "http",141		StartNode: "router:main.default",142		Nodes: map[string]*structs.DiscoveryGraphNode{143			"router:main.default": {144				Type: structs.DiscoveryGraphNodeTypeRouter,145				Name: "main.default",146				Routes: []*structs.DiscoveryRoute{147					{148						Definition: newDefaultServiceRoute("main", "default"),149						NextNode:   "resolver:main.default.dc1",150					},151				},152			},153			"resolver:main.default.dc1": {154				Type: structs.DiscoveryGraphNodeTypeResolver,155				Name: "main.default.dc1",156				Resolver: &structs.DiscoveryResolver{157					Default:        true,158					ConnectTimeout: 5 * time.Second,159					Target:         "main.default.dc1",160				},161			},162		},163		Targets: map[string]*structs.DiscoveryTarget{164			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),165		},166	}167	return compileTestCase{entries: entries, expect: expect}168}169func testcase_JustRouterWithNoDestination() compileTestCase {170	entries := newEntries()171	setServiceProtocol(entries, "main", "http")172	entries.AddRouters(173		&structs.ServiceRouterConfigEntry{174			Kind: "service-router",175			Name: "main",176			Routes: []structs.ServiceRoute{177				{178					Match: &structs.ServiceRouteMatch{179						HTTP: &structs.ServiceRouteHTTPMatch{180							PathPrefix: "/",181						},182					},183				},184			},185		},186	)187	expect := &structs.CompiledDiscoveryChain{188		Protocol:  "http",189		StartNode: "router:main.default",190		Nodes: map[string]*structs.DiscoveryGraphNode{191			"router:main.default": {192				Type: structs.DiscoveryGraphNodeTypeRouter,193				Name: "main.default",194				Routes: []*structs.DiscoveryRoute{195					{196						Definition: &structs.ServiceRoute{197							Match: &structs.ServiceRouteMatch{198								HTTP: &structs.ServiceRouteHTTPMatch{199									PathPrefix: "/",200								},201							},202						},203						NextNode: "resolver:main.default.dc1",204					},205					{206						Definition: newDefaultServiceRoute("main", "default"),207						NextNode:   "resolver:main.default.dc1",208					},209				},210			},211			"resolver:main.default.dc1": {212				Type: structs.DiscoveryGraphNodeTypeResolver,213				Name: "main.default.dc1",214				Resolver: &structs.DiscoveryResolver{215					Default:        true,216					ConnectTimeout: 5 * time.Second,217					Target:         "main.default.dc1",218				},219			},220		},221		Targets: map[string]*structs.DiscoveryTarget{222			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),223		},224	}225	return compileTestCase{entries: entries, expect: expect}226}227func testcase_RouterWithDefaults_NoSplit_WithResolver() compileTestCase {228	entries := newEntries()229	setServiceProtocol(entries, "main", "http")230	entries.AddRouters(231		&structs.ServiceRouterConfigEntry{232			Kind: "service-router",233			Name: "main",234		},235	)236	entries.AddResolvers(237		&structs.ServiceResolverConfigEntry{238			Kind:           "service-resolver",239			Name:           "main",240			ConnectTimeout: 33 * time.Second,241		},242	)243	expect := &structs.CompiledDiscoveryChain{244		Protocol:  "http",245		StartNode: "router:main.default",246		Nodes: map[string]*structs.DiscoveryGraphNode{247			"router:main.default": {248				Type: structs.DiscoveryGraphNodeTypeRouter,249				Name: "main.default",250				Routes: []*structs.DiscoveryRoute{251					{252						Definition: newDefaultServiceRoute("main", "default"),253						NextNode:   "resolver:main.default.dc1",254					},255				},256			},257			"resolver:main.default.dc1": {258				Type: structs.DiscoveryGraphNodeTypeResolver,259				Name: "main.default.dc1",260				Resolver: &structs.DiscoveryResolver{261					ConnectTimeout: 33 * time.Second,262					Target:         "main.default.dc1",263				},264			},265		},266		Targets: map[string]*structs.DiscoveryTarget{267			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),268		},269	}270	return compileTestCase{entries: entries, expect: expect}271}272func testcase_RouterWithDefaults_WithNoopSplit_DefaultResolver() compileTestCase {273	entries := newEntries()274	setServiceProtocol(entries, "main", "http")275	entries.AddRouters(276		&structs.ServiceRouterConfigEntry{277			Kind: "service-router",278			Name: "main",279		},280	)281	entries.AddSplitters(282		&structs.ServiceSplitterConfigEntry{283			Kind: "service-splitter",284			Name: "main",285			Splits: []structs.ServiceSplit{286				{Weight: 100},287			},288		},289	)290	expect := &structs.CompiledDiscoveryChain{291		Protocol:  "http",292		StartNode: "router:main.default",293		Nodes: map[string]*structs.DiscoveryGraphNode{294			"router:main.default": {295				Type: structs.DiscoveryGraphNodeTypeRouter,296				Name: "main.default",297				Routes: []*structs.DiscoveryRoute{298					{299						Definition: newDefaultServiceRoute("main", "default"),300						NextNode:   "splitter:main.default",301					},302				},303			},304			"splitter:main.default": {305				Type: structs.DiscoveryGraphNodeTypeSplitter,306				Name: "main.default",307				Splits: []*structs.DiscoverySplit{308					{309						Weight:   100,310						NextNode: "resolver:main.default.dc1",311					},312				},313			},314			"resolver:main.default.dc1": {315				Type: structs.DiscoveryGraphNodeTypeResolver,316				Name: "main.default.dc1",317				Resolver: &structs.DiscoveryResolver{318					Default:        true,319					ConnectTimeout: 5 * time.Second,320					Target:         "main.default.dc1",321				},322			},323		},324		Targets: map[string]*structs.DiscoveryTarget{325			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),326		},327	}328	return compileTestCase{entries: entries, expect: expect}329}330func testcase_NoopSplit_DefaultResolver_ProtocolFromProxyDefaults() compileTestCase {331	entries := newEntries()332	setGlobalProxyProtocol(entries, "http")333	entries.AddRouters(334		&structs.ServiceRouterConfigEntry{335			Kind: "service-router",336			Name: "main",337		},338	)339	entries.AddSplitters(340		&structs.ServiceSplitterConfigEntry{341			Kind: "service-splitter",342			Name: "main",343			Splits: []structs.ServiceSplit{344				{Weight: 100},345			},346		},347	)348	expect := &structs.CompiledDiscoveryChain{349		Protocol:  "http",350		StartNode: "router:main.default",351		Nodes: map[string]*structs.DiscoveryGraphNode{352			"router:main.default": {353				Type: structs.DiscoveryGraphNodeTypeRouter,354				Name: "main.default",355				Routes: []*structs.DiscoveryRoute{356					{357						Definition: newDefaultServiceRoute("main", "default"),358						NextNode:   "splitter:main.default",359					},360				},361			},362			"splitter:main.default": {363				Type: structs.DiscoveryGraphNodeTypeSplitter,364				Name: "main.default",365				Splits: []*structs.DiscoverySplit{366					{367						Weight:   100,368						NextNode: "resolver:main.default.dc1",369					},370				},371			},372			"resolver:main.default.dc1": {373				Type: structs.DiscoveryGraphNodeTypeResolver,374				Name: "main.default.dc1",375				Resolver: &structs.DiscoveryResolver{376					Default:        true,377					ConnectTimeout: 5 * time.Second,378					Target:         "main.default.dc1",379				},380			},381		},382		Targets: map[string]*structs.DiscoveryTarget{383			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),384		},385	}386	return compileTestCase{entries: entries, expect: expect}387}388func testcase_RouterWithDefaults_WithNoopSplit_WithResolver() compileTestCase {389	entries := newEntries()390	setServiceProtocol(entries, "main", "http")391	entries.AddRouters(392		&structs.ServiceRouterConfigEntry{393			Kind: "service-router",394			Name: "main",395		},396	)397	entries.AddSplitters(398		&structs.ServiceSplitterConfigEntry{399			Kind: "service-splitter",400			Name: "main",401			Splits: []structs.ServiceSplit{402				{Weight: 100},403			},404		},405	)406	entries.AddResolvers(407		&structs.ServiceResolverConfigEntry{408			Kind:           "service-resolver",409			Name:           "main",410			ConnectTimeout: 33 * time.Second,411		},412	)413	expect := &structs.CompiledDiscoveryChain{414		Protocol:  "http",415		StartNode: "router:main.default",416		Nodes: map[string]*structs.DiscoveryGraphNode{417			"router:main.default": {418				Type: structs.DiscoveryGraphNodeTypeRouter,419				Name: "main.default",420				Routes: []*structs.DiscoveryRoute{421					{422						Definition: newDefaultServiceRoute("main", "default"),423						NextNode:   "splitter:main.default",424					},425				},426			},427			"splitter:main.default": {428				Type: structs.DiscoveryGraphNodeTypeSplitter,429				Name: "main.default",430				Splits: []*structs.DiscoverySplit{431					{432						Weight:   100,433						NextNode: "resolver:main.default.dc1",434					},435				},436			},437			"resolver:main.default.dc1": {438				Type: structs.DiscoveryGraphNodeTypeResolver,439				Name: "main.default.dc1",440				Resolver: &structs.DiscoveryResolver{441					ConnectTimeout: 33 * time.Second,442					Target:         "main.default.dc1",443				},444			},445		},446		Targets: map[string]*structs.DiscoveryTarget{447			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),448		},449	}450	return compileTestCase{entries: entries, expect: expect}451}452func testcase_RouteBypassesSplit() compileTestCase {453	entries := newEntries()454	setServiceProtocol(entries, "main", "http")455	setServiceProtocol(entries, "other", "http")456	entries.AddRouters(457		&structs.ServiceRouterConfigEntry{458			Kind: "service-router",459			Name: "main",460			Routes: []structs.ServiceRoute{461				// route direct subset reference (bypass split)462				newSimpleRoute("other", func(r *structs.ServiceRoute) {463					r.Destination.ServiceSubset = "bypass"464				}),465			},466		},467	)468	entries.AddSplitters(469		&structs.ServiceSplitterConfigEntry{470			Kind: "service-splitter",471			Name: "other",472			Splits: []structs.ServiceSplit{473				{Weight: 100, Service: "ignored"},474			},475		},476	)477	entries.AddResolvers(478		&structs.ServiceResolverConfigEntry{479			Kind: "service-resolver",480			Name: "other",481			Subsets: map[string]structs.ServiceResolverSubset{482				"bypass": {483					Filter: "Service.Meta.version == bypass",484				},485			},486		},487	)488	router := entries.GetRouter(structs.NewServiceID("main", nil))489	expect := &structs.CompiledDiscoveryChain{490		Protocol:  "http",491		StartNode: "router:main.default",492		Nodes: map[string]*structs.DiscoveryGraphNode{493			"router:main.default": {494				Type: structs.DiscoveryGraphNodeTypeRouter,495				Name: "main.default",496				Routes: []*structs.DiscoveryRoute{497					{498						Definition: &router.Routes[0],499						NextNode:   "resolver:bypass.other.default.dc1",500					},501					{502						Definition: newDefaultServiceRoute("main", "default"),503						NextNode:   "resolver:main.default.dc1",504					},505				},506			},507			"resolver:main.default.dc1": {508				Type: structs.DiscoveryGraphNodeTypeResolver,509				Name: "main.default.dc1",510				Resolver: &structs.DiscoveryResolver{511					Default:        true,512					ConnectTimeout: 5 * time.Second,513					Target:         "main.default.dc1",514				},515			},516			"resolver:bypass.other.default.dc1": {517				Type: structs.DiscoveryGraphNodeTypeResolver,518				Name: "bypass.other.default.dc1",519				Resolver: &structs.DiscoveryResolver{520					ConnectTimeout: 5 * time.Second,521					Target:         "bypass.other.default.dc1",522				},523			},524		},525		Targets: map[string]*structs.DiscoveryTarget{526			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),527			"bypass.other.default.dc1": newTarget("other", "bypass", "default", "dc1", func(t *structs.DiscoveryTarget) {528				t.Subset = structs.ServiceResolverSubset{529					Filter: "Service.Meta.version == bypass",530				}531			}),532		},533	}534	return compileTestCase{entries: entries, expect: expect}535}536func testcase_NoopSplit_DefaultResolver() compileTestCase {537	entries := newEntries()538	setServiceProtocol(entries, "main", "http")539	entries.AddSplitters(540		&structs.ServiceSplitterConfigEntry{541			Kind: "service-splitter",542			Name: "main",543			Splits: []structs.ServiceSplit{544				{Weight: 100},545			},546		},547	)548	expect := &structs.CompiledDiscoveryChain{549		Protocol:  "http",550		StartNode: "splitter:main.default",551		Nodes: map[string]*structs.DiscoveryGraphNode{552			"splitter:main.default": {553				Type: structs.DiscoveryGraphNodeTypeSplitter,554				Name: "main.default",555				Splits: []*structs.DiscoverySplit{556					{557						Weight:   100,558						NextNode: "resolver:main.default.dc1",559					},560				},561			},562			"resolver:main.default.dc1": {563				Type: structs.DiscoveryGraphNodeTypeResolver,564				Name: "main.default.dc1",565				Resolver: &structs.DiscoveryResolver{566					Default:        true,567					ConnectTimeout: 5 * time.Second,568					Target:         "main.default.dc1",569				},570			},571		},572		Targets: map[string]*structs.DiscoveryTarget{573			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),574		},575	}576	return compileTestCase{entries: entries, expect: expect}577}578func testcase_NoopSplit_WithResolver() compileTestCase {579	entries := newEntries()580	setServiceProtocol(entries, "main", "http")581	entries.AddSplitters(582		&structs.ServiceSplitterConfigEntry{583			Kind: "service-splitter",584			Name: "main",585			Splits: []structs.ServiceSplit{586				{Weight: 100},587			},588		},589	)590	entries.AddResolvers(591		&structs.ServiceResolverConfigEntry{592			Kind:           "service-resolver",593			Name:           "main",594			ConnectTimeout: 33 * time.Second,595		},596	)597	expect := &structs.CompiledDiscoveryChain{598		Protocol:  "http",599		StartNode: "splitter:main.default",600		Nodes: map[string]*structs.DiscoveryGraphNode{601			"splitter:main.default": {602				Type: structs.DiscoveryGraphNodeTypeSplitter,603				Name: "main.default",604				Splits: []*structs.DiscoverySplit{605					{606						Weight:   100,607						NextNode: "resolver:main.default.dc1",608					},609				},610			},611			"resolver:main.default.dc1": {612				Type: structs.DiscoveryGraphNodeTypeResolver,613				Name: "main.default.dc1",614				Resolver: &structs.DiscoveryResolver{615					ConnectTimeout: 33 * time.Second,616					Target:         "main.default.dc1",617				},618			},619		},620		Targets: map[string]*structs.DiscoveryTarget{621			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),622		},623	}624	return compileTestCase{entries: entries, expect: expect}625}626func testcase_SubsetSplit() compileTestCase {627	entries := newEntries()628	setServiceProtocol(entries, "main", "http")629	entries.AddSplitters(630		&structs.ServiceSplitterConfigEntry{631			Kind: "service-splitter",632			Name: "main",633			Splits: []structs.ServiceSplit{634				{Weight: 60, ServiceSubset: "v2"},635				{Weight: 40, ServiceSubset: "v1"},636			},637		},638	)639	entries.AddResolvers(640		&structs.ServiceResolverConfigEntry{641			Kind: "service-resolver",642			Name: "main",643			Subsets: map[string]structs.ServiceResolverSubset{644				"v1": {645					Filter: "Service.Meta.version == 1",646				},647				"v2": {648					Filter: "Service.Meta.version == 2",649				},650			},651		},652	)653	expect := &structs.CompiledDiscoveryChain{654		Protocol:  "http",655		StartNode: "splitter:main.default",656		Nodes: map[string]*structs.DiscoveryGraphNode{657			"splitter:main.default": {658				Type: structs.DiscoveryGraphNodeTypeSplitter,659				Name: "main.default",660				Splits: []*structs.DiscoverySplit{661					{662						Weight:   60,663						NextNode: "resolver:v2.main.default.dc1",664					},665					{666						Weight:   40,667						NextNode: "resolver:v1.main.default.dc1",668					},669				},670			},671			"resolver:v2.main.default.dc1": {672				Type: structs.DiscoveryGraphNodeTypeResolver,673				Name: "v2.main.default.dc1",674				Resolver: &structs.DiscoveryResolver{675					ConnectTimeout: 5 * time.Second,676					Target:         "v2.main.default.dc1",677				},678			},679			"resolver:v1.main.default.dc1": {680				Type: structs.DiscoveryGraphNodeTypeResolver,681				Name: "v1.main.default.dc1",682				Resolver: &structs.DiscoveryResolver{683					ConnectTimeout: 5 * time.Second,684					Target:         "v1.main.default.dc1",685				},686			},687		},688		Targets: map[string]*structs.DiscoveryTarget{689			"v2.main.default.dc1": newTarget("main", "v2", "default", "dc1", func(t *structs.DiscoveryTarget) {690				t.Subset = structs.ServiceResolverSubset{691					Filter: "Service.Meta.version == 2",692				}693			}),694			"v1.main.default.dc1": newTarget("main", "v1", "default", "dc1", func(t *structs.DiscoveryTarget) {695				t.Subset = structs.ServiceResolverSubset{696					Filter: "Service.Meta.version == 1",697				}698			}),699		},700	}701	return compileTestCase{entries: entries, expect: expect}702}703func testcase_ServiceSplit() compileTestCase {704	entries := newEntries()705	setServiceProtocol(entries, "main", "http")706	setServiceProtocol(entries, "foo", "http")707	setServiceProtocol(entries, "bar", "http")708	entries.AddSplitters(709		&structs.ServiceSplitterConfigEntry{710			Kind: "service-splitter",711			Name: "main",712			Splits: []structs.ServiceSplit{713				{Weight: 60, Service: "foo"},714				{Weight: 40, Service: "bar"},715			},716		},717	)718	expect := &structs.CompiledDiscoveryChain{719		Protocol:  "http",720		StartNode: "splitter:main.default",721		Nodes: map[string]*structs.DiscoveryGraphNode{722			"splitter:main.default": {723				Type: structs.DiscoveryGraphNodeTypeSplitter,724				Name: "main.default",725				Splits: []*structs.DiscoverySplit{726					{727						Weight:   60,728						NextNode: "resolver:foo.default.dc1",729					},730					{731						Weight:   40,732						NextNode: "resolver:bar.default.dc1",733					},734				},735			},736			"resolver:foo.default.dc1": {737				Type: structs.DiscoveryGraphNodeTypeResolver,738				Name: "foo.default.dc1",739				Resolver: &structs.DiscoveryResolver{740					Default:        true,741					ConnectTimeout: 5 * time.Second,742					Target:         "foo.default.dc1",743				},744			},745			"resolver:bar.default.dc1": {746				Type: structs.DiscoveryGraphNodeTypeResolver,747				Name: "bar.default.dc1",748				Resolver: &structs.DiscoveryResolver{749					Default:        true,750					ConnectTimeout: 5 * time.Second,751					Target:         "bar.default.dc1",752				},753			},754		},755		Targets: map[string]*structs.DiscoveryTarget{756			"foo.default.dc1": newTarget("foo", "", "default", "dc1", nil),757			"bar.default.dc1": newTarget("bar", "", "default", "dc1", nil),758		},759	}760	return compileTestCase{entries: entries, expect: expect}761}762func testcase_SplitBypassesSplit() compileTestCase {763	entries := newEntries()764	setServiceProtocol(entries, "main", "http")765	setServiceProtocol(entries, "next", "http")766	entries.AddSplitters(767		&structs.ServiceSplitterConfigEntry{768			Kind: "service-splitter",769			Name: "main",770			Splits: []structs.ServiceSplit{771				{772					Weight:        100,773					Service:       "next",774					ServiceSubset: "bypassed",775				},776			},777		},778		&structs.ServiceSplitterConfigEntry{779			Kind: "service-splitter",780			Name: "next",781			Splits: []structs.ServiceSplit{782				{783					Weight:        100,784					ServiceSubset: "not-bypassed",785				},786			},787		},788	)789	entries.AddResolvers(790		&structs.ServiceResolverConfigEntry{791			Kind: "service-resolver",792			Name: "next",793			Subsets: map[string]structs.ServiceResolverSubset{794				"bypassed": {795					Filter: "Service.Meta.version == bypass",796				},797				"not-bypassed": {798					Filter: "Service.Meta.version != bypass",799				},800			},801		},802	)803	expect := &structs.CompiledDiscoveryChain{804		Protocol:  "http",805		StartNode: "splitter:main.default",806		Nodes: map[string]*structs.DiscoveryGraphNode{807			"splitter:main.default": {808				Type: structs.DiscoveryGraphNodeTypeSplitter,809				Name: "main.default",810				Splits: []*structs.DiscoverySplit{811					{812						Weight:   100,813						NextNode: "resolver:bypassed.next.default.dc1",814					},815				},816			},817			"resolver:bypassed.next.default.dc1": {818				Type: structs.DiscoveryGraphNodeTypeResolver,819				Name: "bypassed.next.default.dc1",820				Resolver: &structs.DiscoveryResolver{821					ConnectTimeout: 5 * time.Second,822					Target:         "bypassed.next.default.dc1",823				},824			},825		},826		Targets: map[string]*structs.DiscoveryTarget{827			"bypassed.next.default.dc1": newTarget("next", "bypassed", "default", "dc1", func(t *structs.DiscoveryTarget) {828				t.Subset = structs.ServiceResolverSubset{829					Filter: "Service.Meta.version == bypass",830				}831			}),832		},833	}834	return compileTestCase{entries: entries, expect: expect}835}836func testcase_ServiceRedirect() compileTestCase {837	entries := newEntries()838	entries.AddResolvers(839		&structs.ServiceResolverConfigEntry{840			Kind: "service-resolver",841			Name: "main",842			Redirect: &structs.ServiceResolverRedirect{843				Service: "other",844			},845		},846	)847	expect := &structs.CompiledDiscoveryChain{848		Protocol:  "tcp",849		StartNode: "resolver:other.default.dc1",850		Nodes: map[string]*structs.DiscoveryGraphNode{851			"resolver:other.default.dc1": {852				Type: structs.DiscoveryGraphNodeTypeResolver,853				Name: "other.default.dc1",854				Resolver: &structs.DiscoveryResolver{855					Default:        true,856					ConnectTimeout: 5 * time.Second,857					Target:         "other.default.dc1",858				},859			},860		},861		Targets: map[string]*structs.DiscoveryTarget{862			"other.default.dc1": newTarget("other", "", "default", "dc1", nil),863		},864	}865	return compileTestCase{entries: entries, expect: expect}866}867func testcase_ServiceAndSubsetRedirect() compileTestCase {868	entries := newEntries()869	entries.AddResolvers(870		&structs.ServiceResolverConfigEntry{871			Kind: "service-resolver",872			Name: "main",873			Redirect: &structs.ServiceResolverRedirect{874				Service:       "other",875				ServiceSubset: "v2",876			},877		},878		&structs.ServiceResolverConfigEntry{879			Kind: "service-resolver",880			Name: "other",881			Subsets: map[string]structs.ServiceResolverSubset{882				"v1": {883					Filter: "Service.Meta.version == 1",884				},885				"v2": {886					Filter: "Service.Meta.version == 2",887				},888			},889		},890	)891	expect := &structs.CompiledDiscoveryChain{892		Protocol:  "tcp",893		StartNode: "resolver:v2.other.default.dc1",894		Nodes: map[string]*structs.DiscoveryGraphNode{895			"resolver:v2.other.default.dc1": {896				Type: structs.DiscoveryGraphNodeTypeResolver,897				Name: "v2.other.default.dc1",898				Resolver: &structs.DiscoveryResolver{899					ConnectTimeout: 5 * time.Second,900					Target:         "v2.other.default.dc1",901				},902			},903		},904		Targets: map[string]*structs.DiscoveryTarget{905			"v2.other.default.dc1": newTarget("other", "v2", "default", "dc1", func(t *structs.DiscoveryTarget) {906				t.Subset = structs.ServiceResolverSubset{907					Filter: "Service.Meta.version == 2",908				}909			}),910		},911	}912	return compileTestCase{entries: entries, expect: expect}913}914func testcase_DatacenterRedirect() compileTestCase {915	entries := newEntries()916	entries.AddResolvers(917		&structs.ServiceResolverConfigEntry{918			Kind: "service-resolver",919			Name: "main",920			Redirect: &structs.ServiceResolverRedirect{921				Datacenter: "dc9",922			},923		},924	)925	expect := &structs.CompiledDiscoveryChain{926		Protocol:  "tcp",927		StartNode: "resolver:main.default.dc9",928		Nodes: map[string]*structs.DiscoveryGraphNode{929			"resolver:main.default.dc9": {930				Type: structs.DiscoveryGraphNodeTypeResolver,931				Name: "main.default.dc9",932				Resolver: &structs.DiscoveryResolver{933					ConnectTimeout: 5 * time.Second,934					Target:         "main.default.dc9",935				},936			},937		},938		Targets: map[string]*structs.DiscoveryTarget{939			"main.default.dc9": newTarget("main", "", "default", "dc9", nil),940		},941	}942	return compileTestCase{entries: entries, expect: expect}943}944func testcase_DatacenterRedirect_WithMeshGateways() compileTestCase {945	entries := newEntries()946	entries.GlobalProxy = &structs.ProxyConfigEntry{947		Kind: structs.ProxyDefaults,948		Name: structs.ProxyConfigGlobal,949		MeshGateway: structs.MeshGatewayConfig{950			Mode: structs.MeshGatewayModeRemote,951		},952	}953	entries.AddResolvers(954		&structs.ServiceResolverConfigEntry{955			Kind: "service-resolver",956			Name: "main",957			Redirect: &structs.ServiceResolverRedirect{958				Datacenter: "dc9",959			},960		},961	)962	expect := &structs.CompiledDiscoveryChain{963		Protocol:  "tcp",964		StartNode: "resolver:main.default.dc9",965		Nodes: map[string]*structs.DiscoveryGraphNode{966			"resolver:main.default.dc9": {967				Type: structs.DiscoveryGraphNodeTypeResolver,968				Name: "main.default.dc9",969				Resolver: &structs.DiscoveryResolver{970					ConnectTimeout: 5 * time.Second,971					Target:         "main.default.dc9",972				},973			},974		},975		Targets: map[string]*structs.DiscoveryTarget{976			"main.default.dc9": newTarget("main", "", "default", "dc9", func(t *structs.DiscoveryTarget) {977				t.MeshGateway = structs.MeshGatewayConfig{978					Mode: structs.MeshGatewayModeRemote,979				}980			}),981		},982	}983	return compileTestCase{entries: entries, expect: expect}984}985func testcase_ServiceFailover() compileTestCase {986	entries := newEntries()987	entries.AddResolvers(988		&structs.ServiceResolverConfigEntry{989			Kind: "service-resolver",990			Name: "main",991			Failover: map[string]structs.ServiceResolverFailover{992				"*": {Service: "backup"},993			},994		},995	)996	expect := &structs.CompiledDiscoveryChain{997		Protocol:  "tcp",998		StartNode: "resolver:main.default.dc1",999		Nodes: map[string]*structs.DiscoveryGraphNode{1000			"resolver:main.default.dc1": {1001				Type: structs.DiscoveryGraphNodeTypeResolver,1002				Name: "main.default.dc1",1003				Resolver: &structs.DiscoveryResolver{1004					ConnectTimeout: 5 * time.Second,1005					Target:         "main.default.dc1",1006					Failover: &structs.DiscoveryFailover{1007						Targets: []string{"backup.default.dc1"},1008					},1009				},1010			},1011		},1012		Targets: map[string]*structs.DiscoveryTarget{1013			"main.default.dc1":   newTarget("main", "", "default", "dc1", nil),1014			"backup.default.dc1": newTarget("backup", "", "default", "dc1", nil),1015		},1016	}1017	return compileTestCase{entries: entries, expect: expect}1018}1019func testcase_ServiceFailoverThroughRedirect() compileTestCase {1020	entries := newEntries()1021	entries.AddResolvers(1022		&structs.ServiceResolverConfigEntry{1023			Kind: "service-resolver",1024			Name: "backup",1025			Redirect: &structs.ServiceResolverRedirect{1026				Service: "actual",1027			},1028		},1029		&structs.ServiceResolverConfigEntry{1030			Kind: "service-resolver",1031			Name: "main",1032			Failover: map[string]structs.ServiceResolverFailover{1033				"*": {Service: "backup"},1034			},1035		},1036	)1037	expect := &structs.CompiledDiscoveryChain{1038		Protocol:  "tcp",1039		StartNode: "resolver:main.default.dc1",1040		Nodes: map[string]*structs.DiscoveryGraphNode{1041			"resolver:main.default.dc1": {1042				Type: structs.DiscoveryGraphNodeTypeResolver,1043				Name: "main.default.dc1",1044				Resolver: &structs.DiscoveryResolver{1045					ConnectTimeout: 5 * time.Second,1046					Target:         "main.default.dc1",1047					Failover: &structs.DiscoveryFailover{1048						Targets: []string{"actual.default.dc1"},1049					},1050				},1051			},1052		},1053		Targets: map[string]*structs.DiscoveryTarget{1054			"main.default.dc1":   newTarget("main", "", "default", "dc1", nil),1055			"actual.default.dc1": newTarget("actual", "", "default", "dc1", nil),1056		},1057	}1058	return compileTestCase{entries: entries, expect: expect}1059}1060func testcase_Resolver_CircularFailover() compileTestCase {1061	entries := newEntries()1062	entries.AddResolvers(1063		&structs.ServiceResolverConfigEntry{1064			Kind: "service-resolver",1065			Name: "backup",1066			Failover: map[string]structs.ServiceResolverFailover{1067				"*": {Service: "main"},1068			},1069		},1070		&structs.ServiceResolverConfigEntry{1071			Kind: "service-resolver",1072			Name: "main",1073			Failover: map[string]structs.ServiceResolverFailover{1074				"*": {Service: "backup"},1075			},1076		},1077	)1078	expect := &structs.CompiledDiscoveryChain{1079		Protocol:  "tcp",1080		StartNode: "resolver:main.default.dc1",1081		Nodes: map[string]*structs.DiscoveryGraphNode{1082			"resolver:main.default.dc1": {1083				Type: structs.DiscoveryGraphNodeTypeResolver,1084				Name: "main.default.dc1",1085				Resolver: &structs.DiscoveryResolver{1086					ConnectTimeout: 5 * time.Second,1087					Target:         "main.default.dc1",1088					Failover: &structs.DiscoveryFailover{1089						Targets: []string{"backup.default.dc1"},1090					},1091				},1092			},1093		},1094		Targets: map[string]*structs.DiscoveryTarget{1095			"main.default.dc1":   newTarget("main", "", "default", "dc1", nil),1096			"backup.default.dc1": newTarget("backup", "", "default", "dc1", nil),1097		},1098	}1099	return compileTestCase{entries: entries, expect: expect}1100}1101func testcase_ServiceAndSubsetFailover() compileTestCase {1102	entries := newEntries()1103	entries.AddResolvers(1104		&structs.ServiceResolverConfigEntry{1105			Kind: "service-resolver",1106			Name: "main",1107			Subsets: map[string]structs.ServiceResolverSubset{1108				"backup": {1109					Filter: "Service.Meta.version == backup",1110				},1111			},1112			Failover: map[string]structs.ServiceResolverFailover{1113				"*": {ServiceSubset: "backup"},1114			},1115		},1116	)1117	expect := &structs.CompiledDiscoveryChain{1118		Protocol:  "tcp",1119		StartNode: "resolver:main.default.dc1",1120		Nodes: map[string]*structs.DiscoveryGraphNode{1121			"resolver:main.default.dc1": {1122				Type: structs.DiscoveryGraphNodeTypeResolver,1123				Name: "main.default.dc1",1124				Resolver: &structs.DiscoveryResolver{1125					ConnectTimeout: 5 * time.Second,1126					Target:         "main.default.dc1",1127					Failover: &structs.DiscoveryFailover{1128						Targets: []string{"backup.main.default.dc1"},1129					},1130				},1131			},1132		},1133		Targets: map[string]*structs.DiscoveryTarget{1134			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),1135			"backup.main.default.dc1": newTarget("main", "backup", "default", "dc1", func(t *structs.DiscoveryTarget) {1136				t.Subset = structs.ServiceResolverSubset{1137					Filter: "Service.Meta.version == backup",1138				}1139			}),1140		},1141	}1142	return compileTestCase{entries: entries, expect: expect}1143}1144func testcase_DatacenterFailover() compileTestCase {1145	entries := newEntries()1146	entries.AddResolvers(1147		&structs.ServiceResolverConfigEntry{1148			Kind: "service-resolver",1149			Name: "main",1150			Failover: map[string]structs.ServiceResolverFailover{1151				"*": {Datacenters: []string{"dc2", "dc4"}},1152			},1153		},1154	)1155	expect := &structs.CompiledDiscoveryChain{1156		Protocol:  "tcp",1157		StartNode: "resolver:main.default.dc1",1158		Nodes: map[string]*structs.DiscoveryGraphNode{1159			"resolver:main.default.dc1": {1160				Type: structs.DiscoveryGraphNodeTypeResolver,1161				Name: "main.default.dc1",1162				Resolver: &structs.DiscoveryResolver{1163					ConnectTimeout: 5 * time.Second,1164					Target:         "main.default.dc1",1165					Failover: &structs.DiscoveryFailover{1166						Targets: []string{"main.default.dc2", "main.default.dc4"},1167					},1168				},1169			},1170		},1171		Targets: map[string]*structs.DiscoveryTarget{1172			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),1173			"main.default.dc2": newTarget("main", "", "default", "dc2", nil),1174			"main.default.dc4": newTarget("main", "", "default", "dc4", nil),1175		},1176	}1177	return compileTestCase{entries: entries, expect: expect}1178}1179func testcase_DatacenterFailover_WithMeshGateways() compileTestCase {1180	entries := newEntries()1181	entries.GlobalProxy = &structs.ProxyConfigEntry{1182		Kind: structs.ProxyDefaults,1183		Name: structs.ProxyConfigGlobal,1184		MeshGateway: structs.MeshGatewayConfig{1185			Mode: structs.MeshGatewayModeRemote,1186		},1187	}1188	entries.AddResolvers(1189		&structs.ServiceResolverConfigEntry{1190			Kind: "service-resolver",1191			Name: "main",1192			Failover: map[string]structs.ServiceResolverFailover{1193				"*": {Datacenters: []string{"dc2", "dc4"}},1194			},1195		},1196	)1197	expect := &structs.CompiledDiscoveryChain{1198		Protocol:  "tcp",1199		StartNode: "resolver:main.default.dc1",1200		Nodes: map[string]*structs.DiscoveryGraphNode{1201			"resolver:main.default.dc1": {1202				Type: structs.DiscoveryGraphNodeTypeResolver,1203				Name: "main.default.dc1",1204				Resolver: &structs.DiscoveryResolver{1205					ConnectTimeout: 5 * time.Second,1206					Target:         "main.default.dc1",1207					Failover: &structs.DiscoveryFailover{1208						Targets: []string{1209							"main.default.dc2",1210							"main.default.dc4",1211						},1212					},1213				},1214			},1215		},1216		Targets: map[string]*structs.DiscoveryTarget{1217			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),1218			"main.default.dc2": newTarget("main", "", "default", "dc2", func(t *structs.DiscoveryTarget) {1219				t.MeshGateway = structs.MeshGatewayConfig{1220					Mode: structs.MeshGatewayModeRemote,1221				}1222			}),1223			"main.default.dc4": newTarget("main", "", "default", "dc4", func(t *structs.DiscoveryTarget) {1224				t.MeshGateway = structs.MeshGatewayConfig{1225					Mode: structs.MeshGatewayModeRemote,1226				}1227			}),1228		},1229	}1230	return compileTestCase{entries: entries, expect: expect}1231}1232func testcase_NoopSplit_WithDefaultSubset() compileTestCase {1233	entries := newEntries()1234	setServiceProtocol(entries, "main", "http")1235	entries.AddSplitters(1236		&structs.ServiceSplitterConfigEntry{1237			Kind: "service-splitter",1238			Name: "main",1239			Splits: []structs.ServiceSplit{1240				{Weight: 100},1241			},1242		},1243	)1244	entries.AddResolvers(1245		&structs.ServiceResolverConfigEntry{1246			Kind:          "service-resolver",1247			Name:          "main",1248			DefaultSubset: "v2",1249			Subsets: map[string]structs.ServiceResolverSubset{1250				"v1": {Filter: "Service.Meta.version == 1"},1251				"v2": {Filter: "Service.Meta.version == 2"},1252			},1253		},1254	)1255	expect := &structs.CompiledDiscoveryChain{1256		Protocol:  "http",1257		StartNode: "splitter:main.default",1258		Nodes: map[string]*structs.DiscoveryGraphNode{1259			"splitter:main.default": {1260				Type: structs.DiscoveryGraphNodeTypeSplitter,1261				Name: "main.default",1262				Splits: []*structs.DiscoverySplit{1263					{1264						Weight:   100,1265						NextNode: "resolver:v2.main.default.dc1",1266					},1267				},1268			},1269			"resolver:v2.main.default.dc1": {1270				Type: structs.DiscoveryGraphNodeTypeResolver,1271				Name: "v2.main.default.dc1",1272				Resolver: &structs.DiscoveryResolver{1273					ConnectTimeout: 5 * time.Second,1274					Target:         "v2.main.default.dc1",1275				},1276			},1277		},1278		Targets: map[string]*structs.DiscoveryTarget{1279			"v2.main.default.dc1": newTarget("main", "v2", "default", "dc1", func(t *structs.DiscoveryTarget) {1280				t.Subset = structs.ServiceResolverSubset{1281					Filter: "Service.Meta.version == 2",1282				}1283			}),1284		},1285	}1286	return compileTestCase{entries: entries, expect: expect}1287}1288func testcase_DefaultResolver() compileTestCase {1289	entries := newEntries()1290	expect := &structs.CompiledDiscoveryChain{1291		Protocol:  "tcp",1292		StartNode: "resolver:main.default.dc1",1293		Nodes: map[string]*structs.DiscoveryGraphNode{1294			"resolver:main.default.dc1": {1295				Type: structs.DiscoveryGraphNodeTypeResolver,1296				Name: "main.default.dc1",1297				Resolver: &structs.DiscoveryResolver{1298					Default:        true,1299					ConnectTimeout: 5 * time.Second,1300					Target:         "main.default.dc1",1301				},1302			},1303		},1304		Targets: map[string]*structs.DiscoveryTarget{1305			// TODO-TARGET1306			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),1307		},1308	}1309	return compileTestCase{entries: entries, expect: expect, expectIsDefault: true}1310}1311func testcase_DefaultResolver_WithProxyDefaults() compileTestCase {1312	entries := newEntries()1313	entries.GlobalProxy = &structs.ProxyConfigEntry{1314		Kind: structs.ProxyDefaults,1315		Name: structs.ProxyConfigGlobal,1316		Config: map[string]interface{}{1317			"protocol": "grpc",1318		},1319		MeshGateway: structs.MeshGatewayConfig{1320			Mode: structs.MeshGatewayModeRemote,1321		},1322	}1323	expect := &structs.CompiledDiscoveryChain{1324		Protocol:  "grpc",1325		StartNode: "resolver:main.default.dc1",1326		Nodes: map[string]*structs.DiscoveryGraphNode{1327			"resolver:main.default.dc1": {1328				Type: structs.DiscoveryGraphNodeTypeResolver,1329				Name: "main.default.dc1",1330				Resolver: &structs.DiscoveryResolver{1331					Default:        true,1332					ConnectTimeout: 5 * time.Second,1333					Target:         "main.default.dc1",1334				},1335			},1336		},1337		Targets: map[string]*structs.DiscoveryTarget{1338			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),1339		},1340	}1341	return compileTestCase{entries: entries, expect: expect, expectIsDefault: true}1342}1343func testcase_RedirectToDefaultResolverIsNotDefaultChain() compileTestCase {1344	entries := newEntries()1345	entries.AddResolvers(1346		&structs.ServiceResolverConfigEntry{1347			Kind: structs.ServiceResolver,1348			Name: "main",1349			Redirect: &structs.ServiceResolverRedirect{1350				Service: "other",1351			},1352		},1353	)1354	expect := &structs.CompiledDiscoveryChain{1355		Protocol:  "tcp",1356		StartNode: "resolver:other.default.dc1",1357		Nodes: map[string]*structs.DiscoveryGraphNode{1358			"resolver:other.default.dc1": {1359				Type: structs.DiscoveryGraphNodeTypeResolver,1360				Name: "other.default.dc1",1361				Resolver: &structs.DiscoveryResolver{1362					Default:        true,1363					ConnectTimeout: 5 * time.Second,1364					Target:         "other.default.dc1",1365				},1366			},1367		},1368		Targets: map[string]*structs.DiscoveryTarget{1369			"other.default.dc1": newTarget("other", "", "default", "dc1", nil),1370		},1371	}1372	return compileTestCase{entries: entries, expect: expect, expectIsDefault: false /*being explicit here because this is the whole point of this test*/}1373}1374func testcase_Resolve_WithDefaultSubset() compileTestCase {1375	entries := newEntries()1376	entries.AddResolvers(1377		&structs.ServiceResolverConfigEntry{1378			Kind:          "service-resolver",1379			Name:          "main",1380			DefaultSubset: "v2",1381			Subsets: map[string]structs.ServiceResolverSubset{1382				"v1": {Filter: "Service.Meta.version == 1"},1383				"v2": {Filter: "Service.Meta.version == 2"},1384			},1385		},1386	)1387	expect := &structs.CompiledDiscoveryChain{1388		Protocol:  "tcp",1389		StartNode: "resolver:v2.main.default.dc1",1390		Nodes: map[string]*structs.DiscoveryGraphNode{1391			"resolver:v2.main.default.dc1": {1392				Type: structs.DiscoveryGraphNodeTypeResolver,1393				Name: "v2.main.default.dc1",1394				Resolver: &structs.DiscoveryResolver{1395					ConnectTimeout: 5 * time.Second,1396					Target:         "v2.main.default.dc1",1397				},1398			},1399		},1400		Targets: map[string]*structs.DiscoveryTarget{1401			"v2.main.default.dc1": newTarget("main", "v2", "default", "dc1", func(t *structs.DiscoveryTarget) {1402				t.Subset = structs.ServiceResolverSubset{1403					Filter: "Service.Meta.version == 2",1404				}1405			}),1406		},1407	}1408	return compileTestCase{entries: entries, expect: expect}1409}1410func testcase_DefaultResolver_ExternalSNI() compileTestCase {1411	entries := newEntries()1412	entries.AddServices(&structs.ServiceConfigEntry{1413		Kind:        structs.ServiceDefaults,1414		Name:        "main",1415		ExternalSNI: "main.some.other.service.mesh",1416	})1417	expect := &structs.CompiledDiscoveryChain{1418		Protocol:  "tcp",1419		StartNode: "resolver:main.default.dc1",1420		Nodes: map[string]*structs.DiscoveryGraphNode{1421			"resolver:main.default.dc1": {1422				Type: structs.DiscoveryGraphNodeTypeResolver,1423				Name: "main.default.dc1",1424				Resolver: &structs.DiscoveryResolver{1425					Default:        true,1426					ConnectTimeout: 5 * time.Second,1427					Target:         "main.default.dc1",1428				},1429			},1430		},1431		Targets: map[string]*structs.DiscoveryTarget{1432			"main.default.dc1": newTarget("main", "", "default", "dc1", func(t *structs.DiscoveryTarget) {1433				t.SNI = "main.some.other.service.mesh"1434				t.External = true1435			}),1436		},1437	}1438	return compileTestCase{entries: entries, expect: expect, expectIsDefault: true}1439}1440func testcase_Resolver_ExternalSNI_FailoverNotAllowed() compileTestCase {1441	entries := newEntries()1442	entries.AddServices(&structs.ServiceConfigEntry{1443		Kind:        structs.ServiceDefaults,1444		Name:        "main",1445		ExternalSNI: "main.some.other.service.mesh",1446	})1447	entries.AddResolvers(&structs.ServiceResolverConfigEntry{1448		Kind:           "service-resolver",1449		Name:           "main",1450		ConnectTimeout: 33 * time.Second,1451		Failover: map[string]structs.ServiceResolverFailover{1452			"*": {Service: "backup"},1453		},1454	})1455	return compileTestCase{1456		entries:        entries,1457		expectErr:      `service "main" has an external SNI set; cannot define failover for external services`,1458		expectGraphErr: true,1459	}1460}1461func testcase_Resolver_ExternalSNI_SubsetsNotAllowed() compileTestCase {1462	entries := newEntries()1463	entries.AddServices(&structs.ServiceConfigEntry{1464		Kind:        structs.ServiceDefaults,1465		Name:        "main",1466		ExternalSNI: "main.some.other.service.mesh",1467	})1468	entries.AddResolvers(&structs.ServiceResolverConfigEntry{1469		Kind:           "service-resolver",1470		Name:           "main",1471		ConnectTimeout: 33 * time.Second,1472		Subsets: map[string]structs.ServiceResolverSubset{1473			"canary": {1474				Filter: "Service.Meta.version == canary",1475			},1476		},1477	})1478	return compileTestCase{1479		entries:        entries,1480		expectErr:      `service "main" has an external SNI set; cannot define subsets for external services`,1481		expectGraphErr: true,1482	}1483}1484func testcase_Resolver_ExternalSNI_RedirectNotAllowed() compileTestCase {1485	entries := newEntries()1486	entries.AddServices(&structs.ServiceConfigEntry{1487		Kind:        structs.ServiceDefaults,1488		Name:        "main",1489		ExternalSNI: "main.some.other.service.mesh",1490	})1491	entries.AddResolvers(&structs.ServiceResolverConfigEntry{1492		Kind:           "service-resolver",1493		Name:           "main",1494		ConnectTimeout: 33 * time.Second,1495		Redirect: &structs.ServiceResolverRedirect{1496			Datacenter: "dc2",1497		},1498	})1499	return compileTestCase{1500		entries:        entries,1501		expectErr:      `service "main" has an external SNI set; cannot define redirects for external services`,1502		expectGraphErr: true,1503	}1504}1505func testcase_MultiDatacenterCanary() compileTestCase {1506	entries := newEntries()1507	setServiceProtocol(entries, "main", "http")1508	setServiceProtocol(entries, "main-dc2", "http")1509	setServiceProtocol(entries, "main-dc3", "http")1510	entries.AddSplitters(1511		&structs.ServiceSplitterConfigEntry{1512			Kind: "service-splitter",1513			Name: "main",1514			Splits: []structs.ServiceSplit{1515				{Weight: 60, Service: "main-dc2"},1516				{Weight: 40, Service: "main-dc3"},1517			},1518		},1519	)1520	entries.AddResolvers(1521		&structs.ServiceResolverConfigEntry{1522			Kind: "service-resolver",1523			Name: "main-dc2",1524			Redirect: &structs.ServiceResolverRedirect{1525				Service:    "main",1526				Datacenter: "dc2",1527			},1528		},1529		&structs.ServiceResolverConfigEntry{1530			Kind: "service-resolver",1531			Name: "main-dc3",1532			Redirect: &structs.ServiceResolverRedirect{1533				Service:    "main",1534				Datacenter: "dc3",1535			},1536		},1537		&structs.ServiceResolverConfigEntry{1538			Kind:           "service-resolver",1539			Name:           "main",1540			ConnectTimeout: 33 * time.Second,1541		},1542	)1543	expect := &structs.CompiledDiscoveryChain{1544		Protocol:  "http",1545		StartNode: "splitter:main.default",1546		Nodes: map[string]*structs.DiscoveryGraphNode{1547			"splitter:main.default": {1548				Type: structs.DiscoveryGraphNodeTypeSplitter,1549				Name: "main.default",1550				Splits: []*structs.DiscoverySplit{1551					{1552						Weight:   60,1553						NextNode: "resolver:main.default.dc2",1554					},1555					{1556						Weight:   40,1557						NextNode: "resolver:main.default.dc3",1558					},1559				},1560			},1561			"resolver:main.default.dc2": {1562				Type: structs.DiscoveryGraphNodeTypeResolver,1563				Name: "main.default.dc2",1564				Resolver: &structs.DiscoveryResolver{1565					ConnectTimeout: 33 * time.Second,1566					Target:         "main.default.dc2",1567				},1568			},1569			"resolver:main.default.dc3": {1570				Type: structs.DiscoveryGraphNodeTypeResolver,1571				Name: "main.default.dc3",1572				Resolver: &structs.DiscoveryResolver{1573					ConnectTimeout: 33 * time.Second,1574					Target:         "main.default.dc3",1575				},1576			},1577		},1578		Targets: map[string]*structs.DiscoveryTarget{1579			"main.default.dc2": newTarget("main", "", "default", "dc2", nil),1580			"main.default.dc3": newTarget("main", "", "default", "dc3", nil),1581		},1582	}1583	return compileTestCase{entries: entries, expect: expect}1584}1585func testcase_AllBellsAndWhistles() compileTestCase {1586	entries := newEntries()1587	setServiceProtocol(entries, "main", "http")1588	setServiceProtocol(entries, "svc-redirect", "http")1589	setServiceProtocol(entries, "svc-redirect-again", "http")1590	setServiceProtocol(entries, "svc-split", "http")1591	setServiceProtocol(entries, "svc-split-again", "http")1592	setServiceProtocol(entries, "svc-split-one-more-time", "http")1593	setServiceProtocol(entries, "redirected", "http")1594	entries.AddRouters(1595		&structs.ServiceRouterConfigEntry{1596			Kind: "service-router",1597			Name: "main",1598			Routes: []structs.ServiceRoute{1599				newSimpleRoute("svc-redirect"), // double redirected to a default subset1600				newSimpleRoute("svc-split"),    // one split is split further1601			},1602		},1603	)1604	entries.AddSplitters(1605		&structs.ServiceSplitterConfigEntry{1606			Kind: "service-splitter",1607			Name: "svc-split",1608			Splits: []structs.ServiceSplit{1609				{Weight: 60, Service: "svc-redirect"},    // double redirected to a default subset1610				{Weight: 40, Service: "svc-split-again"}, // split again1611			},1612		},1613		&structs.ServiceSplitterConfigEntry{1614			Kind: "service-splitter",1615			Name: "svc-split-again",1616			Splits: []structs.ServiceSplit{1617				{Weight: 75, Service: "main", ServiceSubset: "v1"},1618				{Weight: 25, Service: "svc-split-one-more-time"},1619			},1620		},1621		&structs.ServiceSplitterConfigEntry{1622			Kind: "service-splitter",1623			Name: "svc-split-one-more-time",1624			Splits: []structs.ServiceSplit{1625				{Weight: 80, Service: "main", ServiceSubset: "v2"},1626				{Weight: 20, Service: "main", ServiceSubset: "v3"},1627			},1628		},1629	)1630	entries.AddResolvers(1631		&structs.ServiceResolverConfigEntry{1632			Kind: "service-resolver",1633			Name: "svc-redirect",1634			Redirect: &structs.ServiceResolverRedirect{1635				Service: "svc-redirect-again",1636			},1637		},1638		&structs.ServiceResolverConfigEntry{1639			Kind: "service-resolver",1640			Name: "svc-redirect-again",1641			Redirect: &structs.ServiceResolverRedirect{1642				Service: "redirected",1643			},1644		},1645		&structs.ServiceResolverConfigEntry{1646			Kind:          "service-resolver",1647			Name:          "redirected",1648			DefaultSubset: "prod",1649			Subsets: map[string]structs.ServiceResolverSubset{1650				"prod": {Filter: "ServiceMeta.env == prod"},1651				"qa":   {Filter: "ServiceMeta.env == qa"},1652			},1653			LoadBalancer: &structs.LoadBalancer{1654				Policy: "ring_hash",1655				RingHashConfig: &structs.RingHashConfig{1656					MaximumRingSize: 100,1657				},1658				HashPolicies: []structs.HashPolicy{1659					{1660						SourceIP: true,1661					},1662				},1663			},1664		},1665		&structs.ServiceResolverConfigEntry{1666			Kind:          "service-resolver",1667			Name:          "main",1668			DefaultSubset: "default-subset",1669			Subsets: map[string]structs.ServiceResolverSubset{1670				"v1":             {Filter: "Service.Meta.version == 1"},1671				"v2":             {Filter: "Service.Meta.version == 2"},1672				"v3":             {Filter: "Service.Meta.version == 3"},1673				"default-subset": {OnlyPassing: true},1674			},1675		},1676	)1677	var (1678		router = entries.GetRouter(structs.NewServiceID("main", nil))1679	)1680	expect := &structs.CompiledDiscoveryChain{1681		Protocol:  "http",1682		StartNode: "router:main.default",1683		Nodes: map[string]*structs.DiscoveryGraphNode{1684			"router:main.default": {1685				Type: structs.DiscoveryGraphNodeTypeRouter,1686				Name: "main.default",1687				Routes: []*structs.DiscoveryRoute{1688					{1689						Definition: &router.Routes[0],1690						NextNode:   "resolver:prod.redirected.default.dc1",1691					},1692					{1693						Definition: &router.Routes[1],1694						NextNode:   "splitter:svc-split.default",1695					},1696					{1697						Definition: newDefaultServiceRoute("main", "default"),1698						NextNode:   "resolver:default-subset.main.default.dc1",1699					},1700				},1701			},1702			"splitter:svc-split.default": {1703				Type: structs.DiscoveryGraphNodeTypeSplitter,1704				Name: "svc-split.default",1705				Splits: []*structs.DiscoverySplit{1706					{1707						Weight:   60,1708						NextNode: "resolver:prod.redirected.default.dc1",1709					},1710					{1711						Weight:   30,1712						NextNode: "resolver:v1.main.default.dc1",1713					},1714					{1715						Weight:   8,1716						NextNode: "resolver:v2.main.default.dc1",1717					},1718					{1719						Weight:   2,1720						NextNode: "resolver:v3.main.default.dc1",1721					},1722				},1723				LoadBalancer: &structs.LoadBalancer{1724					Policy: "ring_hash",1725					RingHashConfig: &structs.RingHashConfig{1726						MaximumRingSize: 100,1727					},1728					HashPolicies: []structs.HashPolicy{1729						{1730							SourceIP: true,1731						},1732					},1733				},1734			},1735			"resolver:prod.redirected.default.dc1": {1736				Type: structs.DiscoveryGraphNodeTypeResolver,1737				Name: "prod.redirected.default.dc1",1738				Resolver: &structs.DiscoveryResolver{1739					ConnectTimeout: 5 * time.Second,1740					Target:         "prod.redirected.default.dc1",1741				},1742				LoadBalancer: &structs.LoadBalancer{1743					Policy: "ring_hash",1744					RingHashConfig: &structs.RingHashConfig{1745						MaximumRingSize: 100,1746					},1747					HashPolicies: []structs.HashPolicy{1748						{1749							SourceIP: true,1750						},1751					},1752				},1753			},1754			"resolver:v1.main.default.dc1": {1755				Type: structs.DiscoveryGraphNodeTypeResolver,1756				Name: "v1.main.default.dc1",1757				Resolver: &structs.DiscoveryResolver{1758					ConnectTimeout: 5 * time.Second,1759					Target:         "v1.main.default.dc1",1760				},1761			},1762			"resolver:v2.main.default.dc1": {1763				Type: structs.DiscoveryGraphNodeTypeResolver,1764				Name: "v2.main.default.dc1",1765				Resolver: &structs.DiscoveryResolver{1766					ConnectTimeout: 5 * time.Second,1767					Target:         "v2.main.default.dc1",1768				},1769			},1770			"resolver:v3.main.default.dc1": {1771				Type: structs.DiscoveryGraphNodeTypeResolver,1772				Name: "v3.main.default.dc1",1773				Resolver: &structs.DiscoveryResolver{1774					ConnectTimeout: 5 * time.Second,1775					Target:         "v3.main.default.dc1",1776				},1777			},1778			"resolver:default-subset.main.default.dc1": {1779				Type: structs.DiscoveryGraphNodeTypeResolver,1780				Name: "default-subset.main.default.dc1",1781				Resolver: &structs.DiscoveryResolver{1782					ConnectTimeout: 5 * time.Second,1783					Target:         "default-subset.main.default.dc1",1784				},1785			},1786		},1787		Targets: map[string]*structs.DiscoveryTarget{1788			"prod.redirected.default.dc1": newTarget("redirected", "prod", "default", "dc1", func(t *structs.DiscoveryTarget) {1789				t.Subset = structs.ServiceResolverSubset{1790					Filter: "ServiceMeta.env == prod",1791				}1792			}),1793			"v1.main.default.dc1": newTarget("main", "v1", "default", "dc1", func(t *structs.DiscoveryTarget) {1794				t.Subset = structs.ServiceResolverSubset{1795					Filter: "Service.Meta.version == 1",1796				}1797			}),1798			"v2.main.default.dc1": newTarget("main", "v2", "default", "dc1", func(t *structs.DiscoveryTarget) {1799				t.Subset = structs.ServiceResolverSubset{1800					Filter: "Service.Meta.version == 2",1801				}1802			}),1803			"v3.main.default.dc1": newTarget("main", "v3", "default", "dc1", func(t *structs.DiscoveryTarget) {1804				t.Subset = structs.ServiceResolverSubset{1805					Filter: "Service.Meta.version == 3",1806				}1807			}),1808			"default-subset.main.default.dc1": newTarget("main", "default-subset", "default", "dc1", func(t *structs.DiscoveryTarget) {1809				t.Subset = structs.ServiceResolverSubset{OnlyPassing: true}1810			}),1811		},1812	}1813	return compileTestCase{entries: entries, expect: expect}1814}1815func testcase_SplitterRequiresValidProtocol() compileTestCase {1816	entries := newEntries()1817	setServiceProtocol(entries, "main", "tcp")1818	entries.AddSplitters(1819		&structs.ServiceSplitterConfigEntry{1820			Kind: structs.ServiceSplitter,1821			Name: "main",1822			Splits: []structs.ServiceSplit{1823				{Weight: 90, Namespace: "v1"},1824				{Weight: 10, Namespace: "v2"},1825			},1826		},1827	)1828	return compileTestCase{1829		entries:        entries,1830		expectErr:      "does not permit advanced routing or splitting behavior",1831		expectGraphErr: true,1832	}1833}1834func testcase_RouterRequiresValidProtocol() compileTestCase {1835	entries := newEntries()1836	setServiceProtocol(entries, "main", "tcp")1837	entries.AddRouters(1838		&structs.ServiceRouterConfigEntry{1839			Kind: structs.ServiceRouter,1840			Name: "main",1841			Routes: []structs.ServiceRoute{1842				{1843					Match: &structs.ServiceRouteMatch{1844						HTTP: &structs.ServiceRouteHTTPMatch{1845							PathExact: "/other",1846						},1847					},1848					Destination: &structs.ServiceRouteDestination{1849						Namespace: "other",1850					},1851				},1852			},1853		},1854	)1855	return compileTestCase{1856		entries:        entries,1857		expectErr:      "does not permit advanced routing or splitting behavior",1858		expectGraphErr: true,1859	}1860}1861func testcase_SplitToUnsplittableProtocol() compileTestCase {1862	entries := newEntries()1863	setServiceProtocol(entries, "main", "tcp")1864	setServiceProtocol(entries, "other", "tcp")1865	entries.AddSplitters(1866		&structs.ServiceSplitterConfigEntry{1867			Kind: structs.ServiceSplitter,1868			Name: "main",1869			Splits: []structs.ServiceSplit{1870				{Weight: 90},1871				{Weight: 10, Service: "other"},1872			},1873		},1874	)1875	return compileTestCase{1876		entries:        entries,1877		expectErr:      "does not permit advanced routing or splitting behavior",1878		expectGraphErr: true,1879	}1880}1881func testcase_RouteToUnroutableProtocol() compileTestCase {1882	entries := newEntries()1883	setServiceProtocol(entries, "main", "tcp")1884	setServiceProtocol(entries, "other", "tcp")1885	entries.AddRouters(1886		&structs.ServiceRouterConfigEntry{1887			Kind: structs.ServiceRouter,1888			Name: "main",1889			Routes: []structs.ServiceRoute{1890				{1891					Match: &structs.ServiceRouteMatch{1892						HTTP: &structs.ServiceRouteHTTPMatch{1893							PathExact: "/other",1894						},1895					},1896					Destination: &structs.ServiceRouteDestination{1897						Service: "other",1898					},1899				},1900			},1901		},1902	)1903	return compileTestCase{1904		entries:        entries,1905		expectErr:      "does not permit advanced routing or splitting behavior",1906		expectGraphErr: true,1907	}1908}1909func testcase_FailoverCrossesProtocols() compileTestCase {1910	entries := newEntries()1911	setServiceProtocol(entries, "main", "grpc")1912	setServiceProtocol(entries, "other", "tcp")1913	entries.AddResolvers(1914		&structs.ServiceResolverConfigEntry{1915			Kind: structs.ServiceResolver,1916			Name: "main",1917			Failover: map[string]structs.ServiceResolverFailover{1918				"*": {1919					Service: "other",1920				},1921			},1922		},1923	)1924	return compileTestCase{1925		entries:        entries,1926		expectErr:      "uses inconsistent protocols",1927		expectGraphErr: true,1928	}1929}1930func testcase_RedirectCrossesProtocols() compileTestCase {1931	entries := newEntries()1932	setServiceProtocol(entries, "main", "grpc")1933	setServiceProtocol(entries, "other", "tcp")1934	entries.AddResolvers(1935		&structs.ServiceResolverConfigEntry{1936			Kind: structs.ServiceResolver,1937			Name: "main",1938			Redirect: &structs.ServiceResolverRedirect{1939				Service: "other",1940			},1941		},1942	)1943	return compileTestCase{1944		entries:        entries,1945		expectErr:      "uses inconsistent protocols",1946		expectGraphErr: true,1947	}1948}1949func testcase_RedirectToMissingSubset() compileTestCase {1950	entries := newEntries()1951	entries.AddResolvers(1952		&structs.ServiceResolverConfigEntry{1953			Kind:           structs.ServiceResolver,1954			Name:           "other",1955			ConnectTimeout: 33 * time.Second,1956		},1957		&structs.ServiceResolverConfigEntry{1958			Kind: structs.ServiceResolver,1959			Name: "main",1960			Redirect: &structs.ServiceResolverRedirect{1961				Service:       "other",1962				ServiceSubset: "v1",1963			},1964		},1965	)1966	return compileTestCase{1967		entries:        entries,1968		expectErr:      `does not have a subset named "v1"`,1969		expectGraphErr: true,1970	}1971}1972func testcase_ResolverProtocolOverride() compileTestCase {1973	entries := newEntries()1974	setServiceProtocol(entries, "main", "grpc")1975	expect := &structs.CompiledDiscoveryChain{1976		Protocol:  "http2",1977		StartNode: "resolver:main.default.dc1",1978		Nodes: map[string]*structs.DiscoveryGraphNode{1979			"resolver:main.default.dc1": {1980				Type: structs.DiscoveryGraphNodeTypeResolver,1981				Name: "main.default.dc1",1982				Resolver: &structs.DiscoveryResolver{1983					Default:        true,1984					ConnectTimeout: 5 * time.Second,1985					Target:         "main.default.dc1",1986				},1987			},1988		},1989		Targets: map[string]*structs.DiscoveryTarget{1990			// TODO-TARGET1991			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),1992		},1993	}1994	return compileTestCase{entries: entries, expect: expect, expectIsDefault: true,1995		expectCustom: true,1996		setup: func(req *CompileRequest) {1997			req.OverrideProtocol = "http2"1998		},1999	}2000}2001func testcase_ResolverProtocolOverrideIgnored() compileTestCase {2002	// This shows that if you try to override the protocol to its current value2003	// the override is completely ignored.2004	entries := newEntries()2005	setServiceProtocol(entries, "main", "http2")2006	expect := &structs.CompiledDiscoveryChain{2007		Protocol:  "http2",2008		StartNode: "resolver:main.default.dc1",2009		Nodes: map[string]*structs.DiscoveryGraphNode{2010			"resolver:main.default.dc1": {2011				Type: structs.DiscoveryGraphNodeTypeResolver,2012				Name: "main.default.dc1",2013				Resolver: &structs.DiscoveryResolver{2014					Default:        true,2015					ConnectTimeout: 5 * time.Second,2016					Target:         "main.default.dc1",2017				},2018			},2019		},2020		Targets: map[string]*structs.DiscoveryTarget{2021			// TODO-TARGET2022			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),2023		},2024	}2025	return compileTestCase{entries: entries, expect: expect, expectIsDefault: true,2026		setup: func(req *CompileRequest) {2027			req.OverrideProtocol = "http2"2028		},2029	}2030}2031func testcase_RouterIgnored_ResolverProtocolOverride() compileTestCase {2032	entries := newEntries()2033	setServiceProtocol(entries, "main", "grpc")2034	entries.AddRouters(2035		&structs.ServiceRouterConfigEntry{2036			Kind: "service-router",2037			Name: "main",2038		},2039	)2040	expect := &structs.CompiledDiscoveryChain{2041		Protocol:  "tcp",2042		StartNode: "resolver:main.default.dc1",2043		Nodes: map[string]*structs.DiscoveryGraphNode{2044			"resolver:main.default.dc1": {2045				Type: structs.DiscoveryGraphNodeTypeResolver,2046				Name: "main.default.dc1",2047				Resolver: &structs.DiscoveryResolver{2048					Default:        true,2049					ConnectTimeout: 5 * time.Second,2050					Target:         "main.default.dc1",2051				},2052			},2053		},2054		Targets: map[string]*structs.DiscoveryTarget{2055			// TODO-TARGET2056			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),2057		},2058	}2059	return compileTestCase{entries: entries, expect: expect, expectIsDefault: true,2060		expectCustom: true,2061		setup: func(req *CompileRequest) {2062			req.OverrideProtocol = "tcp"2063		},2064	}2065}2066func testcase_Resolver_CircularRedirect() compileTestCase {2067	entries := newEntries()2068	entries.AddResolvers(2069		&structs.ServiceResolverConfigEntry{2070			Kind: "service-resolver",2071			Name: "main",2072			Redirect: &structs.ServiceResolverRedirect{2073				Service: "other",2074			},2075		},2076		&structs.ServiceResolverConfigEntry{2077			Kind: "service-resolver",2078			Name: "other",2079			Redirect: &structs.ServiceResolverRedirect{2080				Service: "main",2081			},2082		},2083	)2084	return compileTestCase{entries: entries,2085		expectErr:      "detected circular resolver redirect",2086		expectGraphErr: true,2087	}2088}2089func testcase_CircularSplit() compileTestCase {2090	entries := newEntries()2091	setGlobalProxyProtocol(entries, "http")2092	entries.AddSplitters(2093		&structs.ServiceSplitterConfigEntry{2094			Kind: "service-splitter",2095			Name: "main",2096			Splits: []structs.ServiceSplit{2097				{Weight: 100, Service: "other"},2098			},2099		},2100		&structs.ServiceSplitterConfigEntry{2101			Kind: "service-splitter",2102			Name: "other",2103			Splits: []structs.ServiceSplit{2104				{Weight: 100, Service: "main"},2105			},2106		},2107	)2108	return compileTestCase{entries: entries,2109		expectErr:      "detected circular reference",2110		expectGraphErr: true,2111	}2112}2113func testcase_LBSplitterAndResolver() compileTestCase {2114	entries := newEntries()2115	setServiceProtocol(entries, "foo", "http")2116	setServiceProtocol(entries, "bar", "http")2117	setServiceProtocol(entries, "baz", "http")2118	entries.AddSplitters(2119		&structs.ServiceSplitterConfigEntry{2120			Kind: "service-splitter",2121			Name: "main",2122			Splits: []structs.ServiceSplit{2123				{Weight: 60, Service: "foo"},2124				{Weight: 20, Service: "bar"},2125				{Weight: 20, Service: "baz"},2126			},2127		},2128	)2129	entries.AddResolvers(2130		&structs.ServiceResolverConfigEntry{2131			Kind: "service-resolver",2132			Name: "foo",2133			LoadBalancer: &structs.LoadBalancer{2134				Policy: "least_request",2135				LeastRequestConfig: &structs.LeastRequestConfig{2136					ChoiceCount: 3,2137				},2138			},2139		},2140		&structs.ServiceResolverConfigEntry{2141			Kind: "service-resolver",2142			Name: "bar",2143			LoadBalancer: &structs.LoadBalancer{2144				Policy: "ring_hash",2145				RingHashConfig: &structs.RingHashConfig{2146					MaximumRingSize: 101,2147				},2148				HashPolicies: []structs.HashPolicy{2149					{2150						SourceIP: true,2151					},2152				},2153			},2154		},2155		&structs.ServiceResolverConfigEntry{2156			Kind: "service-resolver",2157			Name: "baz",2158			LoadBalancer: &structs.LoadBalancer{2159				Policy: "maglev",2160				HashPolicies: []structs.HashPolicy{2161					{2162						Field:      "cookie",2163						FieldValue: "chocolate-chip",2164						CookieConfig: &structs.CookieConfig{2165							TTL:  2 * time.Minute,2166							Path: "/bowl",2167						},2168						Terminal: true,2169					},2170				},2171			},2172		},2173	)2174	expect := &structs.CompiledDiscoveryChain{2175		Protocol:  "http",2176		StartNode: "splitter:main.default",2177		Nodes: map[string]*structs.DiscoveryGraphNode{2178			"splitter:main.default": {2179				Type: structs.DiscoveryGraphNodeTypeSplitter,2180				Name: "main.default",2181				Splits: []*structs.DiscoverySplit{2182					{2183						Weight:   60,2184						NextNode: "resolver:foo.default.dc1",2185					},2186					{2187						Weight:   20,2188						NextNode: "resolver:bar.default.dc1",2189					},2190					{2191						Weight:   20,2192						NextNode: "resolver:baz.default.dc1",2193					},2194				},2195				// The LB config from bar is attached because splitters only care about hash-based policies,2196				// and it's the config from bar not baz because we pick the first one we encounter in the Splits.2197				LoadBalancer: &structs.LoadBalancer{2198					Policy: "ring_hash",2199					RingHashConfig: &structs.RingHashConfig{2200						MaximumRingSize: 101,2201					},2202					HashPolicies: []structs.HashPolicy{2203						{2204							SourceIP: true,2205						},2206					},2207				},2208			},2209			// Each service's LB config is passed down from the service-resolver to the resolver node2210			"resolver:foo.default.dc1": {2211				Type: structs.DiscoveryGraphNodeTypeResolver,2212				Name: "foo.default.dc1",2213				Resolver: &structs.DiscoveryResolver{2214					Default:        false,2215					ConnectTimeout: 5 * time.Second,2216					Target:         "foo.default.dc1",2217				},2218				LoadBalancer: &structs.LoadBalancer{2219					Policy: "least_request",2220					LeastRequestConfig: &structs.LeastRequestConfig{2221						ChoiceCount: 3,2222					},2223				},2224			},2225			"resolver:bar.default.dc1": {2226				Type: structs.DiscoveryGraphNodeTypeResolver,2227				Name: "bar.default.dc1",2228				Resolver: &structs.DiscoveryResolver{2229					Default:        false,2230					ConnectTimeout: 5 * time.Second,2231					Target:         "bar.default.dc1",2232				},2233				LoadBalancer: &structs.LoadBalancer{2234					Policy: "ring_hash",2235					RingHashConfig: &structs.RingHashConfig{2236						MaximumRingSize: 101,2237					},2238					HashPolicies: []structs.HashPolicy{2239						{2240							SourceIP: true,2241						},2242					},2243				},2244			},2245			"resolver:baz.default.dc1": {2246				Type: structs.DiscoveryGraphNodeTypeResolver,2247				Name: "baz.default.dc1",2248				Resolver: &structs.DiscoveryResolver{2249					Default:        false,2250					ConnectTimeout: 5 * time.Second,2251					Target:         "baz.default.dc1",2252				},2253				LoadBalancer: &structs.LoadBalancer{2254					Policy: "maglev",2255					HashPolicies: []structs.HashPolicy{2256						{2257							Field:      "cookie",2258							FieldValue: "chocolate-chip",2259							CookieConfig: &structs.CookieConfig{2260								TTL:  2 * time.Minute,2261								Path: "/bowl",2262							},2263							Terminal: true,2264						},2265					},2266				},2267			},2268		},2269		Targets: map[string]*structs.DiscoveryTarget{2270			"foo.default.dc1": newTarget("foo", "", "default", "dc1", nil),2271			"bar.default.dc1": newTarget("bar", "", "default", "dc1", nil),2272			"baz.default.dc1": newTarget("baz", "", "default", "dc1", nil),2273		},2274	}2275	return compileTestCase{entries: entries, expect: expect}2276}2277// ensure chain with LB cfg in resolver isn't a default chain (!IsDefault)2278func testcase_LBResolver() compileTestCase {2279	entries := newEntries()2280	setServiceProtocol(entries, "main", "http")2281	entries.AddResolvers(2282		&structs.ServiceResolverConfigEntry{2283			Kind: "service-resolver",2284			Name: "main",2285			LoadBalancer: &structs.LoadBalancer{2286				Policy: "ring_hash",2287				RingHashConfig: &structs.RingHashConfig{2288					MaximumRingSize: 101,2289				},2290				HashPolicies: []structs.HashPolicy{2291					{2292						SourceIP: true,2293					},2294				},2295			},2296		},2297	)2298	expect := &structs.CompiledDiscoveryChain{2299		Protocol:  "http",2300		StartNode: "resolver:main.default.dc1",2301		Nodes: map[string]*structs.DiscoveryGraphNode{2302			"resolver:main.default.dc1": {2303				Type: structs.DiscoveryGraphNodeTypeResolver,2304				Name: "main.default.dc1",2305				Resolver: &structs.DiscoveryResolver{2306					Default:        false,2307					ConnectTimeout: 5 * time.Second,2308					Target:         "main.default.dc1",2309				},2310				LoadBalancer: &structs.LoadBalancer{2311					Policy: "ring_hash",2312					RingHashConfig: &structs.RingHashConfig{2313						MaximumRingSize: 101,2314					},2315					HashPolicies: []structs.HashPolicy{2316						{2317							SourceIP: true,2318						},2319					},2320				},2321			},2322		},2323		Targets: map[string]*structs.DiscoveryTarget{2324			"main.default.dc1": newTarget("main", "", "default", "dc1", nil),2325		},2326	}2327	return compileTestCase{entries: entries, expect: expect}2328}2329func newSimpleRoute(name string, muts ...func(*structs.ServiceRoute)) structs.ServiceRoute {2330	r := structs.ServiceRoute{2331		Match: &structs.ServiceRouteMatch{2332			HTTP: &structs.ServiceRouteHTTPMatch{PathPrefix: "/" + name},2333		},2334		Destination: &structs.ServiceRouteDestination{Service: name},2335	}2336	for _, mut := range muts {2337		mut(&r)2338	}2339	return r2340}2341func setGlobalProxyProtocol(entries *structs.DiscoveryChainConfigEntries, protocol string) {2342	entries.GlobalProxy = &structs.ProxyConfigEntry{2343		Kind: structs.ProxyDefaults,2344		Name: structs.ProxyConfigGlobal,2345		Config: map[string]interface{}{2346			"protocol": protocol,2347		},2348	}2349}2350func setServiceProtocol(entries *structs.DiscoveryChainConfigEntries, name, protocol string) {2351	entries.AddServices(&structs.ServiceConfigEntry{2352		Kind:     structs.ServiceDefaults,2353		Name:     name,2354		Protocol: protocol,2355	})2356}2357func newEntries() *structs.DiscoveryChainConfigEntries {2358	return &structs.DiscoveryChainConfigEntries{2359		Routers:   make(map[structs.ServiceID]*structs.ServiceRouterConfigEntry),2360		Splitters: make(map[structs.ServiceID]*structs.ServiceSplitterConfigEntry),2361		Resolvers: make(map[structs.ServiceID]*structs.ServiceResolverConfigEntry),2362	}2363}2364func newTarget(service, serviceSubset, namespace, datacenter string, modFn func(t *structs.DiscoveryTarget)) *structs.DiscoveryTarget {2365	t := structs.NewDiscoveryTarget(service, serviceSubset, namespace, datacenter)2366	t.SNI = connect.TargetSNI(t, "trustdomain.consul")2367	t.Name = t.SNI2368	if modFn != nil {2369		modFn(t)2370	}2371	return t2372}...

imports_test.go

Source:imports_test.go

...38var addTests = []test{39	{40		name: "leave os alone",41		pkg:  "os",42		in: `package main43import (44	"os"45)46`,47		out: `package main48import (49	"os"50)51`,52	},53	{54		name: "import.1",55		pkg:  "os",56		in: `package main57`,58		out: `package main59import "os"60`,61	},62	{63		name: "import.2",64		pkg:  "os",65		in: `package main66// Comment67import "C"68`,69		out: `package main70// Comment71import "C"72import "os"73`,74	},75	{76		name: "import.3",77		pkg:  "os",78		in: `package main79// Comment80import "C"81import (82	"io"83	"utf8"84)85`,86		out: `package main87// Comment88import "C"89import (90	"io"91	"os"92	"utf8"93)94`,95	},96	{97		name: "import.17",98		pkg:  "x/y/z",99		in: `package main100// Comment101import "C"102import (103	"a"104	"b"105	"x/w"106	"d/f"107)108`,109		out: `package main110// Comment111import "C"112import (113	"a"114	"b"115	"x/w"116	"x/y/z"117	"d/f"118)119`,120	},121	{122		name: "import into singular group",123		pkg:  "bytes",124		in: `package main125import "os"126`,127		out: `package main128import (129	"bytes"130	"os"131)132`,133	},134	{135		name: "import into singular group with comment",136		pkg:  "bytes",137		in: `package main138import /* why */ /* comment here? */ "os"139`,140		out: `package main141import /* why */ /* comment here? */ (142	"bytes"143	"os"144)145`,146	},147	{148		name: "import into group with leading comment",149		pkg:  "strings",150		in: `package main151import (152	// comment before bytes153	"bytes"154	"os"155)156`,157		out: `package main158import (159	// comment before bytes160	"bytes"161	"os"162	"strings"163)164`,165	},166	{167		name:       "",168		renamedPkg: "fmtpkg",169		pkg:        "fmt",170		in: `package main171import "os"172`,173		out: `package main174import (175	fmtpkg "fmt"176	"os"177)178`,179	},180	{181		name: "struct comment",182		pkg:  "time",183		in: `package main184// This is a comment before a struct.185type T struct {186	t  time.Time187}188`,189		out: `package main190import "time"191// This is a comment before a struct.192type T struct {193	t time.Time194}195`,196	},197	{198		name: "issue 8729 import C",199		pkg:  "time",200		in: `package main201import "C"202// comment203type T time.Time204`,205		out: `package main206import "C"207import "time"208// comment209type T time.Time210`,211	},212	{213		name: "issue 8729 empty import",214		pkg:  "time",215		in: `package main216import ()217// comment218type T time.Time219`,220		out: `package main221import "time"222// comment223type T time.Time224`,225	},226	{227		name: "issue 8729 comment on package line",228		pkg:  "time",229		in: `package main // comment230type T time.Time231`,232		out: `package main // comment233import "time"234type T time.Time235`,236	},237	{238		name: "issue 8729 comment after package",239		pkg:  "time",240		in: `package main241// comment242type T time.Time243`,244		out: `package main245import "time"246// comment247type T time.Time248`,249	},250	{251		name: "issue 8729 comment before and on package line",252		pkg:  "time",253		in: `// comment before254package main // comment on255type T time.Time256`,257		out: `// comment before258package main // comment on259import "time"260type T time.Time261`,262	},263	// Issue 9961: Match prefixes using path segments rather than bytes264	{265		name: "issue 9961",266		pkg:  "regexp",267		in: `package main268import (269	"flag"270	"testing"271	"rsc.io/p"272)273`,274		out: `package main275import (276	"flag"277	"regexp"278	"testing"279	"rsc.io/p"280)281`,282	},283}284func TestAddImport(t *testing.T) {285	for _, test := range addTests {286		file := parse(t, test.name, test.in)287		var before bytes.Buffer288		ast.Fprint(&before, fset, file, nil)289		AddNamedImport(fset, file, test.renamedPkg, test.pkg)290		if got := print(t, test.name, file); got != test.out {291			if test.broken {292				t.Logf("%s is known broken:\ngot: %s\nwant: %s", test.name, got, test.out)293			} else {294				t.Errorf("%s:\ngot: %s\nwant: %s", test.name, got, test.out)295			}296			var after bytes.Buffer297			ast.Fprint(&after, fset, file, nil)298			t.Logf("AST before:\n%s\nAST after:\n%s\n", before.String(), after.String())299		}300	}301}302func TestDoubleAddImport(t *testing.T) {303	file := parse(t, "doubleimport", "package main\n")304	AddImport(fset, file, "os")305	AddImport(fset, file, "bytes")306	want := `package main307import (308	"bytes"309	"os"310)311`312	if got := print(t, "doubleimport", file); got != want {313		t.Errorf("got: %s\nwant: %s", got, want)314	}315}316// Part of issue 8729.317func TestDoubleAddImportWithDeclComment(t *testing.T) {318	file := parse(t, "doubleimport", `package main319import (320)321// comment322type I int323`)324	// The AddImport order here matters.325	AddImport(fset, file, "llvm.org/llgo/third_party/gotools/go/ast/astutil")326	AddImport(fset, file, "os")327	want := `package main328import (329	"llvm.org/llgo/third_party/gotools/go/ast/astutil"330	"os"331)332// comment333type I int334`335	if got := print(t, "doubleimport_with_decl_comment", file); got != want {336		t.Errorf("got: %s\nwant: %s", got, want)337	}338}339var deleteTests = []test{340	{341		name: "import.4",342		pkg:  "os",343		in: `package main344import (345	"os"346)347`,348		out: `package main349`,350	},351	{352		name: "import.5",353		pkg:  "os",354		in: `package main355// Comment356import "C"357import "os"358`,359		out: `package main360// Comment361import "C"362`,363	},364	{365		name: "import.6",366		pkg:  "os",367		in: `package main368// Comment369import "C"370import (371	"io"372	"os"373	"utf8"374)375`,376		out: `package main377// Comment378import "C"379import (380	"io"381	"utf8"382)383`,384	},385	{386		name: "import.7",387		pkg:  "io",388		in: `package main389import (390	"io"   // a391	"os"   // b392	"utf8" // c393)394`,395		out: `package main396import (397	// a398	"os"   // b399	"utf8" // c400)401`,402	},403	{404		name: "import.8",405		pkg:  "os",406		in: `package main407import (408	"io"   // a409	"os"   // b410	"utf8" // c411)412`,413		out: `package main414import (415	"io" // a416	// b417	"utf8" // c418)419`,420	},421	{422		name: "import.9",423		pkg:  "utf8",424		in: `package main425import (426	"io"   // a427	"os"   // b428	"utf8" // c429)430`,431		out: `package main432import (433	"io" // a434	"os" // b435	// c436)437`,438	},439	{440		name: "import.10",441		pkg:  "io",442		in: `package main443import (444	"io"445	"os"446	"utf8"447)448`,449		out: `package main450import (451	"os"452	"utf8"453)454`,455	},456	{457		name: "import.11",458		pkg:  "os",459		in: `package main460import (461	"io"462	"os"463	"utf8"464)465`,466		out: `package main467import (468	"io"469	"utf8"470)471`,472	},473	{474		name: "import.12",475		pkg:  "utf8",476		in: `package main477import (478	"io"479	"os"480	"utf8"481)482`,483		out: `package main484import (485	"io"486	"os"487)488`,489	},490	{491		name: "handle.raw.quote.imports",492		pkg:  "os",493		in:   "package main\n\nimport `os`",494		out: `package main495`,496	},497	{498		name: "import.13",499		pkg:  "io",500		in: `package main501import (502	"fmt"503	"io"504	"os"505	"utf8"506	"go/format"507)508`,509		out: `package main510import (511	"fmt"512	"os"513	"utf8"514	"go/format"515)516`,517	},518	{519		name: "import.14",520		pkg:  "io",521		in: `package main522import (523	"fmt" // a524	"io"   // b525	"os"   // c526	"utf8" // d527	"go/format" // e528)529`,530		out: `package main531import (532	"fmt" // a533	// b534	"os"   // c535	"utf8" // d536	"go/format" // e537)538`,539	},540	{541		name: "import.15",542		pkg:  "double",543		in: `package main544import (545	"double"546	"double"547)548`,549		out: `package main550`,551	},552	{553		name: "import.16",554		pkg:  "bubble",555		in: `package main556import (557	"toil"558	"bubble"559	"bubble"560	"trouble"561)562`,563		out: `package main564import (565	"toil"566	"trouble"567)568`,569	},570	{571		name: "import.17",572		pkg:  "quad",573		in: `package main574import (575	"quad"576	"quad"577)578import (579	"quad"580	"quad"581)582`,583		out: `package main584`,585	},586}587func TestDeleteImport(t *testing.T) {588	for _, test := range deleteTests {589		file := parse(t, test.name, test.in)590		DeleteImport(fset, file, test.pkg)591		if got := print(t, test.name, file); got != test.out {592			t.Errorf("%s:\ngot: %s\nwant: %s", test.name, got, test.out)593		}594	}595}596type rewriteTest struct {597	name   string598	srcPkg string599	dstPkg string600	in     string601	out    string602}603var rewriteTests = []rewriteTest{604	{605		name:   "import.13",606		srcPkg: "utf8",607		dstPkg: "encoding/utf8",608		in: `package main609import (610	"io"611	"os"612	"utf8" // thanks ken613)614`,615		out: `package main616import (617	"encoding/utf8" // thanks ken618	"io"619	"os"620)621`,622	},623	{624		name:   "import.14",625		srcPkg: "asn1",626		dstPkg: "encoding/asn1",627		in: `package main628import (629	"asn1"630	"crypto"631	"crypto/rsa"632	_ "crypto/sha1"633	"crypto/x509"634	"crypto/x509/pkix"635	"time"636)637var x = 1638`,639		out: `package main640import (641	"crypto"642	"crypto/rsa"643	_ "crypto/sha1"644	"crypto/x509"645	"crypto/x509/pkix"646	"encoding/asn1"647	"time"648)649var x = 1650`,651	},652	{653		name:   "import.15",654		srcPkg: "url",655		dstPkg: "net/url",656		in: `package main657import (658	"bufio"659	"net"660	"path"661	"url"662)663var x = 1 // comment on x, not on url664`,665		out: `package main666import (667	"bufio"668	"net"669	"net/url"670	"path"671)672var x = 1 // comment on x, not on url673`,674	},675	{676		name:   "import.16",677		srcPkg: "http",678		dstPkg: "net/http",679		in: `package main680import (681	"flag"682	"http"683	"log"684	"text/template"685)686var addr = flag.String("addr", ":1718", "http service address") // Q=17, R=18687`,688		out: `package main689import (690	"flag"691	"log"692	"net/http"693	"text/template"694)695var addr = flag.String("addr", ":1718", "http service address") // Q=17, R=18696`,697	},698}699func TestRewriteImport(t *testing.T) {700	for _, test := range rewriteTests {701		file := parse(t, test.name, test.in)702		RewriteImport(fset, file, test.srcPkg, test.dstPkg)...

output_test.go

Source:output_test.go

...26			t.Logf("test %v runs only on %v, skipping: ", test.name, test.goos)27			continue28		}29		dir := t.TempDir()30		source := "main.go"31		if test.run == "test" {32			source = "main_test.go"33		}34		src := filepath.Join(dir, source)35		f, err := os.Create(src)36		if err != nil {37			t.Fatalf("failed to create file: %v", err)38		}39		_, err = f.WriteString(test.source)40		if err != nil {41			f.Close()42			t.Fatalf("failed to write: %v", err)43		}44		if err := f.Close(); err != nil {45			t.Fatalf("failed to close file: %v", err)46		}47		cmd := exec.Command(testenv.GoToolPath(t), test.run, "-race", "-pkgdir="+pkgdir, src)48		// GODEBUG spoils program output, GOMAXPROCS makes it flaky.49		for _, env := range os.Environ() {50			if strings.HasPrefix(env, "GODEBUG=") ||51				strings.HasPrefix(env, "GOMAXPROCS=") ||52				strings.HasPrefix(env, "GORACE=") {53				continue54			}55			cmd.Env = append(cmd.Env, env)56		}57		cmd.Env = append(cmd.Env,58			"GOMAXPROCS=1", // see comment in race_test.go59			"GORACE="+test.gorace,60		)61		got, _ := cmd.CombinedOutput()62		matched := false63		for _, re := range test.re {64			if regexp.MustCompile(re).MatchString(string(got)) {65				matched = true66				break67			}68		}69		if !matched {70			exp := fmt.Sprintf("expect:\n%v\n", test.re[0])71			if len(test.re) > 1 {72				exp = fmt.Sprintf("expected one of %d patterns:\n",73					len(test.re))74				for k, re := range test.re {75					exp += fmt.Sprintf("pattern %d:\n%v\n", k, re)76				}77			}78			t.Fatalf("failed test case %v, %sgot:\n%s",79				test.name, exp, got)80		}81	}82}83var tests = []struct {84	name   string85	run    string86	goos   string87	gorace string88	source string89	re     []string90}{91	{"simple", "run", "", "atexit_sleep_ms=0", `92package main93import "time"94var xptr *int95var donechan chan bool96func main() {97	done := make(chan bool)98	x := 099	startRacer(&x, done)100	store(&x, 43)101	<-done102}103func store(x *int, v int) {104	*x = v105}106func startRacer(x *int, done chan bool) {107	xptr = x108	donechan = done109	go racer()110}111func racer() {112	time.Sleep(10*time.Millisecond)113	store(xptr, 42)114	donechan <- true115}116`, []string{`==================117WARNING: DATA RACE118Write at 0x[0-9,a-f]+ by goroutine [0-9]:119  main\.store\(\)120      .+/main\.go:14 \+0x[0-9,a-f]+121  main\.racer\(\)122      .+/main\.go:23 \+0x[0-9,a-f]+123Previous write at 0x[0-9,a-f]+ by main goroutine:124  main\.store\(\)125      .+/main\.go:14 \+0x[0-9,a-f]+126  main\.main\(\)127      .+/main\.go:10 \+0x[0-9,a-f]+128Goroutine [0-9] \(running\) created at:129  main\.startRacer\(\)130      .+/main\.go:19 \+0x[0-9,a-f]+131  main\.main\(\)132      .+/main\.go:9 \+0x[0-9,a-f]+133==================134Found 1 data race\(s\)135exit status 66136`}},137	{"exitcode", "run", "", "atexit_sleep_ms=0 exitcode=13", `138package main139func main() {140	done := make(chan bool)141	x := 0142	go func() {143		x = 42144		done <- true145	}()146	x = 43147	<-done148}149`, []string{`exit status 13`}},150	{"strip_path_prefix", "run", "", "atexit_sleep_ms=0 strip_path_prefix=/main.", `151package main152func main() {153	done := make(chan bool)154	x := 0155	go func() {156		x = 42157		done <- true158	}()159	x = 43160	<-done161}162`, []string{`163      go:7 \+0x[0-9,a-f]+164`}},165	{"halt_on_error", "run", "", "atexit_sleep_ms=0 halt_on_error=1", `166package main167func main() {168	done := make(chan bool)169	x := 0170	go func() {171		x = 42172		done <- true173	}()174	x = 43175	<-done176}177`, []string{`178==================179exit status 66180`}},181	{"test_fails_on_race", "test", "", "atexit_sleep_ms=0", `182package main_test183import "testing"184func TestFail(t *testing.T) {185	done := make(chan bool)186	x := 0187	_ = x188	go func() {189		x = 42190		done <- true191	}()192	x = 43193	<-done194	t.Log(t.Failed())195}196`, []string{`197==================198--- FAIL: TestFail \(0...s\)199.*main_test.go:14: true200.*testing.go:.*: race detected during execution of test201FAIL`}},202	{"slicebytetostring_pc", "run", "", "atexit_sleep_ms=0", `203package main204func main() {205	done := make(chan string)206	data := make([]byte, 10)207	go func() {208		done <- string(data)209	}()210	data[0] = 1211	<-done212}213`, []string{`214  runtime\.slicebytetostring\(\)215      .*/runtime/string\.go:.*216  main\.main\.func1\(\)217      .*/main.go:7`}},218	// Test for https://golang.org/issue/33309219	{"midstack_inlining_traceback", "run", "linux", "atexit_sleep_ms=0", `220package main221var x int222var c chan int223func main() {224	c = make(chan int)225	go f()226	x = 1227	<-c228}229func f() {230	g(c)231}232func g(c chan int) {233	h(c)234}235func h(c chan int) {236	c <- x237}238`, []string{`==================239WARNING: DATA RACE240Read at 0x[0-9,a-f]+ by goroutine [0-9]:241  main\.h\(\)242      .+/main\.go:22 \+0x[0-9,a-f]+243  main\.g\(\)244      .+/main\.go:18 \+0x[0-9,a-f]+245  main\.f\(\)246      .+/main\.go:14 \+0x[0-9,a-f]+247Previous write at 0x[0-9,a-f]+ by main goroutine:248  main\.main\(\)249      .+/main\.go:9 \+0x[0-9,a-f]+250Goroutine [0-9] \(running\) created at:251  main\.main\(\)252      .+/main\.go:8 \+0x[0-9,a-f]+253==================254Found 1 data race\(s\)255exit status 66256`}},257	// Test for https://golang.org/issue/17190258	{"external_cgo_thread", "run", "linux", "atexit_sleep_ms=0", `259package main260/*261#include <pthread.h>262typedef struct cb {263        int foo;264} cb;265extern void goCallback();266static inline void *threadFunc(void *p) {267	goCallback();268	return 0;269}270static inline void startThread(cb* c) {271	pthread_t th;272	pthread_create(&th, 0, threadFunc, 0);273}274*/275import "C"276var done chan bool277var racy int278//export goCallback279func goCallback() {280	racy++281	done <- true282}283func main() {284	done = make(chan bool)285	var c C.cb286	C.startThread(&c)287	racy++288	<- done289}290`, []string{`==================291WARNING: DATA RACE292Read at 0x[0-9,a-f]+ by main goroutine:293  main\.main\(\)294      .*/main\.go:34 \+0x[0-9,a-f]+295Previous write at 0x[0-9,a-f]+ by goroutine [0-9]:296  main\.goCallback\(\)297      .*/main\.go:27 \+0x[0-9,a-f]+298  _cgoexp_[0-9a-z]+_goCallback\(\)299      .*_cgo_gotypes\.go:[0-9]+ \+0x[0-9,a-f]+300  _cgoexp_[0-9a-z]+_goCallback\(\)301      <autogenerated>:1 \+0x[0-9,a-f]+302Goroutine [0-9] \(running\) created at:303  runtime\.newextram\(\)304      .*/runtime/proc.go:[0-9]+ \+0x[0-9,a-f]+305==================`,306		`==================307WARNING: DATA RACE308Read at 0x[0-9,a-f]+ by .*:309  main\..*310      .*/main\.go:[0-9]+ \+0x[0-9,a-f]+(?s).*311Previous write at 0x[0-9,a-f]+ by .*:312  main\..*313      .*/main\.go:[0-9]+ \+0x[0-9,a-f]+(?s).*314Goroutine [0-9] \(running\) created at:315  runtime\.newextram\(\)316      .*/runtime/proc.go:[0-9]+ \+0x[0-9,a-f]+317==================`}},318	{"second_test_passes", "test", "", "atexit_sleep_ms=0", `319package main_test320import "testing"321func TestFail(t *testing.T) {322	done := make(chan bool)323	x := 0324	_ = x325	go func() {326		x = 42327		done <- true328	}()329	x = 43330	<-done331}332func TestPass(t *testing.T) {333}334`, []string{`335==================336--- FAIL: TestFail \(0...s\)337.*testing.go:.*: race detected during execution of test338FAIL`}},339	{"mutex", "run", "", "atexit_sleep_ms=0", `340package main341import (342	"sync"343	"fmt"344)345func main() {346	c := make(chan bool, 1)347	threads := 1348	iterations := 20000349	data := 0350	var wg sync.WaitGroup351	for i := 0; i < threads; i++ {352		wg.Add(1)353		go func() {354			defer wg.Done()355			for i := 0; i < iterations; i++ {356				c <- true357				data += 1358				<- c359			}360		}()361	}362	for i := 0; i < iterations; i++ {363		c <- true364		data += 1365		<- c366	}367	wg.Wait()368	if (data == iterations*(threads+1)) { fmt.Println("pass") }369}`, []string{`pass`}},370	// Test for https://github.com/golang/go/issues/37355371	{"chanmm", "run", "", "atexit_sleep_ms=0", `372package main373import (374	"sync"375	"time"376)377func main() {378	c := make(chan bool, 1)379	var data uint64380	var wg sync.WaitGroup381	wg.Add(2)382	c <- true383	go func() {384		defer wg.Done()385		c <- true386	}()387	go func() {388		defer wg.Done()389		time.Sleep(time.Second)390		<-c391		data = 2392	}()393	data = 1394	<-c395	wg.Wait()396	_ = data397}398`, []string{`==================399WARNING: DATA RACE400Write at 0x[0-9,a-f]+ by goroutine [0-9]:401  main\.main\.func2\(\)402      .*/main\.go:21 \+0x[0-9,a-f]+403Previous write at 0x[0-9,a-f]+ by main goroutine:404  main\.main\(\)405      .*/main\.go:23 \+0x[0-9,a-f]+406Goroutine [0-9] \(running\) created at:407  main\.main\(\)408      .*/main.go:[0-9]+ \+0x[0-9,a-f]+409==================`}},410}...

main.go

Source:main.go

2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4// Check correctness of various closure corner cases5// that are expected to be inlined6package main7var ok bool8var sink int9func main() {10	{11		if x := func() int { // ERROR "can inline main.func1"12			return 113		}(); x != 1 { // ERROR "inlining call to main.func1"14			ppanic("x != 1")15		}16		if x := func() int { // ERROR "can inline main.func2" "func literal does not escape"17			return 118		}; x() != 1 { // ERROR "inlining call to main.func2"19			ppanic("x() != 1")20		}21	}22	{23		if y := func(x int) int { // ERROR "can inline main.func3"24			return x + 225		}(40); y != 42 { // ERROR "inlining call to main.func3"26			ppanic("y != 42")27		}28		if y := func(x int) int { // ERROR "can inline main.func4" "func literal does not escape"29			return x + 230		}; y(40) != 42 { // ERROR "inlining call to main.func4"31			ppanic("y(40) != 42")32		}33	}34	{35		y := func(x int) int { // ERROR "can inline main.func5" "func literal does not escape"36			return x + 237		}38		y = func(x int) int { // ERROR "can inline main.func6" "func literal does not escape"39			return x + 140		}41		if y(40) != 41 {42			ppanic("y(40) != 41")43		}44	}45	{46		func() { // ERROR "func literal does not escape"47			y := func(x int) int { // ERROR "can inline main.func7.1" "func literal does not escape"48				return x + 249			}50			y = func(x int) int { // ERROR "can inline main.func7.2" "func literal does not escape"51				return x + 152			}53			if y(40) != 41 {54				ppanic("y(40) != 41")55			}56		}()57	}58	{59		y := func(x int) int { // ERROR "can inline main.func8" "func literal does not escape"60			return x + 261		}62		y, sink = func(x int) int { // ERROR "can inline main.func9" "func literal does not escape"63			return x + 164		}, 4265		if y(40) != 41 {66			ppanic("y(40) != 41")67		}68	}69	{70		func() { // ERROR "func literal does not escape"71			y := func(x int) int { // ERROR "can inline main.func10.1" "func literal does not escape"72				return x + 273			}74			y, sink = func(x int) int { // ERROR "can inline main.func10.2" "func literal does not escape"75				return x + 176			}, 4277			if y(40) != 41 {78				ppanic("y(40) != 41")79			}80		}()81	}82	{83		y := func(x int) int { // ERROR "can inline main.func11" "func literal does not escape"84			return x + 285		}86		y, sink = func() (func(int) int, int) { // ERROR "can inline main.func12"87			return func(x int) int { // ERROR "can inline main.func12"88				return x + 189			}, 4290		}() // ERROR "func literal does not escape" "inlining call to main.func12"91		if y(40) != 41 {92			ppanic("y(40) != 41")93		}94	}95	{96		func() { // ERROR "func literal does not escape"97			y := func(x int) int { // ERROR "func literal does not escape" "can inline main.func13.1"98				return x + 299			}100			y, sink = func() (func(int) int, int) { // ERROR "can inline main.func13.2"101				return func(x int) int { // ERROR "can inline main.func13.2"102					return x + 1103				}, 42104			}() // ERROR "inlining call to main.func13.2" "func literal does not escape"105			if y(40) != 41 {106				ppanic("y(40) != 41")107			}108		}()109	}110	{111		y := func(x int) int { // ERROR "can inline main.func14" "func literal does not escape"112			return x + 2113		}114		y, ok = map[int]func(int) int{ // ERROR "does not escape"115			0: func(x int) int { return x + 1 }, // ERROR "can inline main.func15" "func literal escapes"116		}[0]117		if y(40) != 41 {118			ppanic("y(40) != 41")119		}120	}121	{122		func() { // ERROR "func literal does not escape"123			y := func(x int) int { // ERROR "can inline main.func16.1" "func literal does not escape"124				return x + 2125			}126			y, ok = map[int]func(int) int{ // ERROR "does not escape"127				0: func(x int) int { return x + 1 }, // ERROR "can inline main.func16.2" "func literal escapes"128			}[0]129			if y(40) != 41 {130				ppanic("y(40) != 41")131			}132		}()133	}134	{135		y := func(x int) int { // ERROR "can inline main.func17" "func literal does not escape"136			return x + 2137		}138		y, ok = interface{}(func(x int) int { // ERROR "can inline main.func18" "does not escape"139			return x + 1140		}).(func(int) int)141		if y(40) != 41 {142			ppanic("y(40) != 41")143		}144	}145	{146		func() { // ERROR "func literal does not escape"147			y := func(x int) int { // ERROR "can inline main.func19.1" "func literal does not escape"148				return x + 2149			}150			y, ok = interface{}(func(x int) int { // ERROR "can inline main.func19.2" "does not escape"151				return x + 1152			}).(func(int) int)153			if y(40) != 41 {154				ppanic("y(40) != 41")155			}156		}()157	}158	{159		x := 42160		if y := func() int { // ERROR "can inline main.func20"161			return x162		}(); y != 42 { // ERROR "inlining call to main.func20"163			ppanic("y != 42")164		}165		if y := func() int { // ERROR "can inline main.func21" "func literal does not escape"166			return x167		}; y() != 42 { // ERROR "inlining call to main.func21"168			ppanic("y() != 42")169		}170	}171	{172		x := 42173		if z := func(y int) int { // ERROR "can inline main.func22"174			return func() int { // ERROR "can inline main.func22.1" "can inline main.func30"175				return x + y176			}() // ERROR "inlining call to main.func22.1"177		}(1); z != 43 { // ERROR "inlining call to main.func22" "inlining call to main.func30"178			ppanic("z != 43")179		}180		if z := func(y int) int { // ERROR "func literal does not escape" "can inline main.func23"181			return func() int { // ERROR "can inline main.func23.1" "can inline main.func31"182				return x + y183			}() // ERROR "inlining call to main.func23.1"184		}; z(1) != 43 { // ERROR "inlining call to main.func23" "inlining call to main.func31"185			ppanic("z(1) != 43")186		}187	}188	{189		a := 1190		func() { // ERROR "can inline main.func24"191			func() { // ERROR "can inline main.func24" "can inline main.func32"192				a = 2193			}() // ERROR "inlining call to main.func24"194		}() // ERROR "inlining call to main.func24" "inlining call to main.func32"195		if a != 2 {196			ppanic("a != 2")197		}198	}199	{200		b := 2201		func(b int) { // ERROR "func literal does not escape"202			func() { // ERROR "can inline main.func25.1"203				b = 3204			}() // ERROR "inlining call to main.func25.1"205			if b != 3 {206				ppanic("b != 3")207			}208		}(b)209		if b != 2 {210			ppanic("b != 2")211		}212	}213	{214		c := 3215		func() { // ERROR "func literal does not escape"216			c = 4217			func() { // ERROR "func literal does not escape"218				if c != 4 {219					ppanic("c != 4")220				}221				recover() // prevent inlining222			}()223		}()224		if c != 4 {225			ppanic("c != 4")226		}227	}228	{229		a := 2230		if r := func(x int) int { // ERROR "func literal does not escape"231			b := 3232			return func(y int) int { // ERROR "can inline main.func27.1"233				c := 5234				return func(z int) int { // ERROR "can inline main.func27.1.1" "can inline main.func27.2"235					return a*x + b*y + c*z236				}(10) // ERROR "inlining call to main.func27.1.1"237			}(100) // ERROR "inlining call to main.func27.1" "inlining call to main.func27.2"238		}(1000); r != 2350 {239			ppanic("r != 2350")240		}241	}242	{243		a := 2244		if r := func(x int) int { // ERROR "func literal does not escape"245			b := 3246			return func(y int) int { // ERROR "can inline main.func28.1"247				c := 5248				func(z int) { // ERROR "can inline main.func28.1.1" "can inline main.func28.2"249					a = a * x250					b = b * y251					c = c * z252				}(10) // ERROR "inlining call to main.func28.1.1"253				return a + c254			}(100) + b // ERROR "inlining call to main.func28.1" "inlining call to main.func28.2"255		}(1000); r != 2350 {256			ppanic("r != 2350")257		}258		if a != 2000 {259			ppanic("a != 2000")260		}261	}262}263//go:noinline264func ppanic(s string) { // ERROR "leaking param: s"265	panic(s) // ERROR "s escapes to heap"266}...

import_test.go

Source:import_test.go

1// Copyright 2011 The Go Authors.  All rights reserved.2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4package main5import "go/ast"6func init() {7	addTestCases(importTests, nil)8}9var importTests = []testCase{10	{11		Name: "import.0",12		Fn:   addImportFn("os"),13		In: `package main14import (15	"os"16)17`,18		Out: `package main19import (20	"os"21)22`,23	},24	{25		Name: "import.1",26		Fn:   addImportFn("os"),27		In: `package main28`,29		Out: `package main30import "os"31`,32	},33	{34		Name: "import.2",35		Fn:   addImportFn("os"),36		In: `package main37// Comment38import "C"39`,40		Out: `package main41// Comment42import "C"43import "os"44`,45	},46	{47		Name: "import.3",48		Fn:   addImportFn("os"),49		In: `package main50// Comment51import "C"52import (53	"io"54	"utf8"55)56`,57		Out: `package main58// Comment59import "C"60import (61	"io"62	"os"63	"utf8"64)65`,66	},67	{68		Name: "import.4",69		Fn:   deleteImportFn("os"),70		In: `package main71import (72	"os"73)74`,75		Out: `package main76`,77	},78	{79		Name: "import.5",80		Fn:   deleteImportFn("os"),81		In: `package main82// Comment83import "C"84import "os"85`,86		Out: `package main87// Comment88import "C"89`,90	},91	{92		Name: "import.6",93		Fn:   deleteImportFn("os"),94		In: `package main95// Comment96import "C"97import (98	"io"99	"os"100	"utf8"101)102`,103		Out: `package main104// Comment105import "C"106import (107	"io"108	"utf8"109)110`,111	},112	{113		Name: "import.7",114		Fn:   deleteImportFn("io"),115		In: `package main116import (117	"io"   // a118	"os"   // b119	"utf8" // c120)121`,122		Out: `package main123import (124	// a125	"os"   // b126	"utf8" // c127)128`,129	},130	{131		Name: "import.8",132		Fn:   deleteImportFn("os"),133		In: `package main134import (135	"io"   // a136	"os"   // b137	"utf8" // c138)139`,140		Out: `package main141import (142	"io" // a143	// b144	"utf8" // c145)146`,147	},148	{149		Name: "import.9",150		Fn:   deleteImportFn("utf8"),151		In: `package main152import (153	"io"   // a154	"os"   // b155	"utf8" // c156)157`,158		Out: `package main159import (160	"io" // a161	"os" // b162	// c163)164`,165	},166	{167		Name: "import.10",168		Fn:   deleteImportFn("io"),169		In: `package main170import (171	"io"172	"os"173	"utf8"174)175`,176		Out: `package main177import (178	"os"179	"utf8"180)181`,182	},183	{184		Name: "import.11",185		Fn:   deleteImportFn("os"),186		In: `package main187import (188	"io"189	"os"190	"utf8"191)192`,193		Out: `package main194import (195	"io"196	"utf8"197)198`,199	},200	{201		Name: "import.12",202		Fn:   deleteImportFn("utf8"),203		In: `package main204import (205	"io"206	"os"207	"utf8"208)209`,210		Out: `package main211import (212	"io"213	"os"214)215`,216	},217	{218		Name: "import.13",219		Fn:   rewriteImportFn("utf8", "encoding/utf8"),220		In: `package main221import (222	"io"223	"os"224	"utf8" // thanks ken225)226`,227		Out: `package main228import (229	"encoding/utf8" // thanks ken230	"io"231	"os"232)233`,234	},235	{236		Name: "import.14",237		Fn:   rewriteImportFn("asn1", "encoding/asn1"),238		In: `package main239import (240	"asn1"241	"crypto"242	"crypto/rsa"243	_ "crypto/sha1"244	"crypto/x509"245	"crypto/x509/pkix"246	"time"247)248var x = 1249`,250		Out: `package main251import (252	"crypto"253	"crypto/rsa"254	_ "crypto/sha1"255	"crypto/x509"256	"crypto/x509/pkix"257	"encoding/asn1"258	"time"259)260var x = 1261`,262	},263	{264		Name: "import.15",265		Fn:   rewriteImportFn("url", "net/url"),266		In: `package main267import (268	"bufio"269	"net"270	"path"271	"url"272)273var x = 1 // comment on x, not on url274`,275		Out: `package main276import (277	"bufio"278	"net"279	"net/url"280	"path"281)282var x = 1 // comment on x, not on url283`,284	},285	{286		Name: "import.16",287		Fn:   rewriteImportFn("http", "net/http", "template", "text/template"),288		In: `package main289import (290	"flag"291	"http"292	"log"293	"template"294)295var addr = flag.String("addr", ":1718", "http service address") // Q=17, R=18296`,297		Out: `package main298import (299	"flag"300	"log"301	"net/http"302	"text/template"303)304var addr = flag.String("addr", ":1718", "http service address") // Q=17, R=18305`,306	},307	{308		Name: "import.17",309		Fn:   addImportFn("x/y/z", "x/a/c"),310		In: `package main311// Comment312import "C"313import (314	"a"315	"b"316	"x/w"317	"d/f"318)319`,320		Out: `package main321// Comment322import "C"323import (324	"a"325	"b"326	"x/a/c"327	"x/w"328	"x/y/z"329	"d/f"330)331`,332	},333	{334		Name: "import.18",335		Fn:   addDelImportFn("e", "o"),336		In: `package main337import (338	"f"339	"o"340	"z"341)342`,343		Out: `package main344import (345	"e"346	"f"347	"z"348)349`,350	},351}352func addImportFn(path ...string) func(*ast.File) bool {353	return func(f *ast.File) bool {354		fixed := false355		for _, p := range path {356			if !imports(f, p) {357				addImport(f, p)...

func.go

Source:func.go

1// +build ignore2package main3var a, b, c int4var unknown bool // defeat dead-code elimination5func func1() {6	var h int // @line f1h7	f := func(x *int) *int {8		if unknown {9			return &b10		}11		return x12	}13	// FV(g) = {f, h}14	g := func(x *int) *int {15		if unknown {16			return &h17		}18		return f(x)19	}20	print(g(&a)) // @pointsto main.a | main.b | h@f1h:621	print(f(&a)) // @pointsto main.a | main.b22	print(&a)    // @pointsto main.a23}24// @calls main.func1 -> main.func1$225// @calls main.func1 -> main.func1$126// @calls main.func1$2 ->  main.func1$127func func2() {28	var x, y *int29	defer func() {30		x = &a31	}()32	go func() {33		y = &b34	}()35	print(x) // @pointsto main.a36	print(y) // @pointsto main.b37}38func func3() {39	x, y := func() (x, y *int) {40		x = &a41		y = &b42		if unknown {43			return nil, &c44		}45		return46	}()47	print(x) // @pointsto main.a48	print(y) // @pointsto main.b | main.c49}50func swap(x, y *int) (*int, *int) { // @line swap51	print(&x) // @pointsto x@swap:1152	print(x)  // @pointsto makeslice[*]@func4make:1153	print(&y) // @pointsto y@swap:1454	print(y)  // @pointsto j@f4j:555	return y, x56}57func func4() {58	a := make([]int, 10) // @line func4make59	i, j := 123, 456     // @line f4j60	_ = i61	p, q := swap(&a[3], &j)62	print(p) // @pointsto j@f4j:563	print(q) // @pointsto makeslice[*]@func4make:1164	f := &b65	print(f) // @pointsto main.b66}67type T int68func (t *T) f(x *int) *int {69	print(t) // @pointsto main.a70	print(x) // @pointsto main.c71	return &b72}73func (t *T) g(x *int) *int {74	print(t) // @pointsto main.a75	print(x) // @pointsto main.b76	return &c77}78func (t *T) h(x *int) *int {79	print(t) // @pointsto main.a80	print(x) // @pointsto main.b81	return &c82}83var h func(*T, *int) *int84func func5() {85	// Static call of method.86	t := (*T)(&a)87	print(t.f(&c)) // @pointsto main.b88	// Static call of method as function89	print((*T).g(t, &b)) // @pointsto main.c90	// Dynamic call (not invoke) of method.91	h = (*T).h92	print(h(t, &b)) // @pointsto main.c93}94// @calls main.func5 -> (*main.T).f95// @calls main.func5 -> (*main.T).g$thunk96// @calls main.func5 -> (*main.T).h$thunk97func func6() {98	A := &a99	f := func() *int {100		return A // (free variable)101	}102	print(f()) // @pointsto main.a103}104// @calls main.func6 -> main.func6$1105type I interface {106	f()107}108type D struct{}109func (D) f() {}110func func7() {111	var i I = D{}112	imethodClosure := i.f113	imethodClosure()114	// @calls main.func7 -> (main.I).f$bound115	// @calls (main.I).f$bound -> (main.D).f116	var d D117	cmethodClosure := d.f118	cmethodClosure()119	// @calls main.func7 -> (main.D).f$bound120	// @calls (main.D).f$bound ->(main.D).f121	methodExpr := D.f122	methodExpr(d)123	// @calls main.func7 -> (main.D).f$thunk124}125func func8(x ...int) {126	print(&x[0]) // @pointsto varargs[*]@varargs:15127}128type E struct {129	x1, x2, x3, x4, x5 *int130}131func (e E) f() {}132func func9() {133	// Regression test for bug reported by Jon Valdes on golang-dev, Jun 19 2014.134	// The receiver of a bound method closure may be of a multi-node type, E.135	// valueNode was reserving only a single node for it, so the136	// nodes used by the immediately following constraints137	// (e.g. param 'i') would get clobbered.138	var e E139	e.x1 = &a140	e.x2 = &a141	e.x3 = &a142	e.x4 = &a143	e.x5 = &a144	_ = e.f // form a closure---must reserve sizeof(E) nodes145	func(i I) {146		i.f() // must not crash the solver147	}(new(D))148	print(e.x1) // @pointsto main.a149	print(e.x2) // @pointsto main.a150	print(e.x3) // @pointsto main.a151	print(e.x4) // @pointsto main.a152	print(e.x5) // @pointsto main.a153}154func main() {155	func1()156	func2()157	func3()158	func4()159	func5()160	func6()161	func7()162	func8(1, 2, 3) // @line varargs163	func9()164}165// @calls <root> -> main.main166// @calls <root> -> main.init...

interfaces.go

Source:interfaces.go

1// +build ignore2package main3type I interface {4	f()5}6type C int7func (*C) f() {}8type D struct{ ptr *int }9func (D) f() {}10type E struct{}11func (*E) f() {}12var a, b int13var unknown bool // defeat dead-code elimination14func interface1() {15	var i interface{} = &a16	var j interface{} = D{&b}17	k := j18	if unknown {19		k = i20	}21	print(i) // @types *int22	print(j) // @types D23	print(k) // @types *int | D24	print(i.(*int)) // @pointsto main.a25	print(j.(*int)) // @pointsto26	print(k.(*int)) // @pointsto main.a27	print(i.(D).ptr) // @pointsto28	print(j.(D).ptr) // @pointsto main.b29	print(k.(D).ptr) // @pointsto main.b30}31func interface2() {32	var i I = (*C)(&a)33	var j I = D{&a}34	k := j35	if unknown {36		k = i37	}38	print(i) // @types *C39	print(j) // @types D40	print(k) // @types *C | D41	print(k) // @pointsto makeinterface:main.D | makeinterface:*main.C42	k.f()43	// @calls main.interface2 -> (*main.C).f44	// @calls main.interface2 -> (main.D).f45	print(i.(*C))    // @pointsto main.a46	print(j.(D).ptr) // @pointsto main.a47	print(k.(*C))    // @pointsto main.a48	switch x := k.(type) {49	case *C:50		print(x) // @pointsto main.a51	case D:52		print(x.ptr) // @pointsto main.a53	case *E:54		print(x) // @pointsto55	}56}57func interface3() {58	// There should be no backflow of concrete types from the type-switch to x.59	var x interface{} = 060	print(x) // @types int61	switch x.(type) {62	case int:63	case string:64	}65}66func interface4() {67	var i interface{} = D{&a}68	if unknown {69		i = 12370	}71	print(i) // @types int | D72	j := i.(I)       // interface narrowing type-assertion73	print(j)         // @types D74	print(j.(D).ptr) // @pointsto main.a75	var l interface{} = j // interface widening assignment.76	print(l)              // @types D77	print(l.(D).ptr)      // @pointsto main.a78	m := j.(interface{}) // interface widening type-assertion.79	print(m)             // @types D80	print(m.(D).ptr)     // @pointsto main.a81}82// Interface method calls and value flow:83type J interface {84	f(*int) *int85}86type P struct {87	x int88}89func (p *P) f(pi *int) *int {90	print(p)  // @pointsto p@i5p:691	print(pi) // @pointsto i@i5i:692	return &p.x93}94func interface5() {95	var p P // @line i5p96	var j J = &p97	var i int      // @line i5i98	print(j.f(&i)) // @pointsto p.x@i5p:699	print(&i)      // @pointsto i@i5i:6100	print(j) // @pointsto makeinterface:*main.P101}102// @calls main.interface5 -> (*main.P).f103func interface6() {104	f := I.f105	print(f) // @pointsto (main.I).f$thunk106	f(new(struct{ D }))107}108// @calls main.interface6 -> (main.I).f$thunk109// @calls (main.I).f$thunk -> (*struct{main.D}).f110func main() {111	interface1()112	interface2()113	interface3()114	interface4()115	interface5()116	interface6()117}...

inline_callers.go

Source:inline_callers.go

1// run -gcflags=-l=42// Copyright 2017 The Go Authors. All rights reserved.3// Use of this source code is governed by a BSD-style4// license that can be found in the LICENSE file.5package main6import (7	"fmt"8	"runtime"9)10var skip int11var npcs int12var pcs = make([]uintptr, 32)13func f() {14	g()15}16func g() {17	h()18}19func h() {20	npcs = runtime.Callers(skip, pcs)21}22func testCallers(skp int) (frames []string) {23	skip = skp24	f()25	for i := 0; i < npcs; i++ {26		fn := runtime.FuncForPC(pcs[i] - 1)27		frames = append(frames, fn.Name())28		if fn.Name() == "main.main" {29			break30		}31	}32	return33}34func testCallersFrames(skp int) (frames []string) {35	skip = skp36	f()37	callers := pcs[:npcs]38	ci := runtime.CallersFrames(callers)39	for {40		frame, more := ci.Next()41		frames = append(frames, frame.Function)42		if !more || frame.Function == "main.main" {43			break44		}45	}46	return47}48var expectedFrames [][]string = [][]string{49	0: {"runtime.Callers", "main.h", "main.g", "main.f", "main.testCallers", "main.main"},50	1: {"main.h", "main.g", "main.f", "main.testCallers", "main.main"},51	2: {"main.g", "main.f", "main.testCallers", "main.main"},52	3: {"main.f", "main.testCallers", "main.main"},53	4: {"main.testCallers", "main.main"},54	5: {"main.main"},55}56var allFrames = []string{"runtime.Callers", "main.h", "main.g", "main.f", "main.testCallersFrames", "main.main"}57func same(xs, ys []string) bool {58	if len(xs) != len(ys) {59		return false60	}61	for i := range xs {62		if xs[i] != ys[i] {63			return false64		}65	}66	return true67}68func main() {69	for i := 0; i <= 5; i++ {70		frames := testCallers(i)71		expected := expectedFrames[i]72		if !same(frames, expected) {73			fmt.Printf("testCallers(%d):\n got %v\n want %v\n", i, frames, expected)74		}75		frames = testCallersFrames(i)76		expected = allFrames[i:]77		if !same(frames, expected) {78			fmt.Printf("testCallersFrames(%d):\n got %v\n want %v\n", i, frames, expected)79		}80	}81}...

main

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, World!")4}5import "fmt"6func main() {7    fmt.Println("Hello, World!")8}9import "fmt"10func main() {11    fmt.Println("Hello, World!")12}13import "fmt"14func main() {15    fmt.Println("Hello, World!")16}17import "fmt"18func main() {19    fmt.Println("Hello, World!")20}21import "fmt"22func main() {23    fmt.Println("Hello, World!")24}25import "fmt"26func main() {27    fmt.Println("Hello, World!")28}29import "fmt"30func main() {31    fmt.Println("Hello, World!")32}33import "fmt"34func main() {35    fmt.Println("Hello, World!")36}37import "fmt"38func main() {39    fmt.Println("Hello, World!")40}41import "fmt"42func main() {43    fmt.Println("Hello, World!")44}45import "fmt"46func main() {47    fmt.Println("Hello, World!")48}49import "fmt"50func main() {51    fmt.Println("Hello, World!")52}53import "fmt"54func main() {55    fmt.Println("Hello,

main

Using AI Code Generation

1import "fmt"2func main() {3fmt.Println("Hello World")4}5import "fmt"6func main() {7fmt.Println("Hello World")8}9import "fmt"10func main() {11fmt.Println("Hello World")12}13import "fmt"14func main() {15fmt.Println("Hello World")16}17import "fmt"18func main() {19fmt.Println("Hello World")20}21import "fmt"22func main() {23fmt.Println("Hello World")24}25import "fmt"26func main() {27fmt.Println("Hello World")28}29import "fmt"30func main() {31fmt.Println("Hello World")32}33import "fmt"34func main() {35fmt.Println("Hello World")36}37import "fmt"38func main() {39fmt.Println("Hello World")40}41import "fmt"42func main() {43fmt.Println("Hello World")44}45import "fmt"46func main() {47fmt.Println("Hello World")48}49import "fmt"50func main() {51fmt.Println("Hello World")52}53import "fmt"54func main() {55fmt.Println("Hello World")56}57import "fmt"

main

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, World!")4}5import (6func main() {7    fmt.Println("Hello, World!")8}9import (10func main() {11    fmt.Println("Hello, World!")12}13import (14func main() {15    fmt.Println("Hello, World!")16}17import (18func main() {19    fmt.Println("Hello, World!")20}21import (22func main() {23    fmt.Println("Hello, World!")24}25import (26func main() {27    fmt.Println("Hello, World!")28}29import (30func main() {31    fmt.Println("Hello, World!")32}33import (34func main() {35    fmt.Println("Hello, World!")36}37import (38func main() {39    fmt.Println("Hello, World!")40}41import (42func main() {43    fmt.Println("Hello, World!")44}45import (46func main() {47    fmt.Println("Hello, World!")48}49import (50func main() {51    fmt.Println("

main

Using AI Code Generation

1import "fmt"2func main() {3}4import "fmt"5func main() {6}7import "fmt"8func main() {9}10import "fmt"11func main() {12}13import "fmt"14func main() {15}16import "fmt"17func main() {18}19import "fmt"20func main() {21}22import "fmt"23func main() {24}25import "fmt"26func main() {27}28import "fmt"29func main() {30}31import "fmt"32func main() {33}34import "fmt"35func main() {36}37import "fmt"38func main() {39}40import

main

Using AI Code Generation

1import "fmt"2func main(){3	fmt.Println("Hello World!")4}5import "fmt"6func main(){7	fmt.Println("Hello World!")8}9import "fmt"10func main(){11	fmt.Println("Hello World!")12}13import "fmt"14func main(){15	fmt.Println("Hello World!")16}17import "fmt"18func main(){19	fmt.Println("Hello World!")20}21import "fmt"22func main(){23	fmt.Println("Hello World!")24}25import "fmt"26func main(){27	fmt.Println("Hello World!")28}29import "fmt"30func main(){31	fmt.Println("Hello World!")32}33import "fmt"34func main(){35	fmt.Println("Hello World!")36}37import "fmt"38func main(){39	fmt.Println("Hello World!")40}41import "fmt"42func main(){43	fmt.Println("Hello World!")44}45import "fmt"46func main(){47	fmt.Println("Hello World!")48}49import "fmt"50func main(){51	fmt.Println("Hello World!")52}53import "fmt"54func main(){55	fmt.Println("Hello World!")56}57import "fmt"58func main(){59	fmt.Println("Hello World!")60}

main

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, World!")4}5import "fmt"6func main() {7    fmt.Println("Hello, World!")8}9import "fmt"10func main() {11    fmt.Println("Hello, World!")12}13import "fmt"14func main() {15    fmt.Println("Hello, World!")16}17import "fmt"18func main() {19    fmt.Println("Hello, World!")20}21import "fmt"22func main() {23    fmt.Println("Hello, World!")24}25import "fmt"26func main() {27    fmt.Println("Hello, World!")28}

main

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World!")4	main.Main()5}6import (7func main() {8	fmt.Println("Hello World!")9	main.Main()10}11import (12func Main() {13	fmt.Println("Main method of main class")14}15import (16func Main() {17	fmt.Println("Main method of main class")18}19import (20func Main() {21	fmt.Println("Main method of main class")22}23import (24func Main() {25	fmt.Println("Main method of main class")26}27import (28func Main() {29	fmt.Println("Main method of main class")30}31import (32func Main() {33	fmt.Println("Main method of main class")34}35import (36func Main() {37	fmt.Println("Main method of main class")38}39import (40func Main() {41	fmt.Println("Main method of main class")42}43import (44func Main() {45	fmt.Println("Main method of main class")46}47import (48func Main() {49	fmt.Println("Main method of main class")50}51import (

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