How to use TestDNSResolver method of local Package

Best K6 code snippet using local.TestDNSResolver

dns_resolver_test.go

Source:dns_resolver_test.go

1// Copyright 2022 Google LLC2//3// Licensed under the Apache License, Version 2.0 (the "License");4// you may not use this file except in compliance with the License.5// You may obtain a copy of the License at6//7//      http://www.apache.org/licenses/LICENSE-2.08//9// Unless required by applicable law or agreed to in writing, software10// distributed under the License is distributed on an "AS IS" BASIS,11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.12// See the License for the specific language governing permissions and13// limitations under the License.14package dns_resolver_test15import (16	"fmt"17	"strings"18	"testing"19	"github.com/GoogleCloudPlatform/esp-v2/tests/endpoints/echo/client"20	"github.com/GoogleCloudPlatform/esp-v2/tests/env"21	comp "github.com/GoogleCloudPlatform/esp-v2/tests/env/components"22	"github.com/GoogleCloudPlatform/esp-v2/tests/env/platform"23)24const (25	domainName = "envoy-dns-lookup-policy-test-backend"26	v4Response = "IPv4"27	v6Response = "IPv6"28)29func toFqdnWithRoot(dns string) string {30	return dns + "."31}32func TestDnsResolver(t *testing.T) {33	t.Parallel()34	testCase := []struct {35		desc            string36		backendHost     string37		isResolveFailed bool38		wantResp        string39		wantError       string40	}{41		{42			desc:        "resolve PQDN domain name successfully",43			backendHost: "dns-resolver-test-backend",44			wantResp:    `{"message":"hello"}`,45		},46		{47			desc:        "resolve FQDN domain name successfully",48			backendHost: "dns-resolver-test-backend.example.com",49			wantResp:    `{"message":"hello"}`,50		},51		{52			desc:        "resolve workstation FQDN domain name successfully",53			backendHost: "dns-resolver-test-backend.corp.google.com",54			wantResp:    `{"message":"hello"}`,55		},56		{57			desc:        "resolve k8s FQDN domain name successfully",58			backendHost: "dns-resolver-test-backend.test-pods.svc.cluster.local",59			wantResp:    `{"message":"hello"}`,60		},61		{62			desc:            "resolve domain name fails because record not exist in resolver",63			backendHost:     "dns-resolver-test-backend",64			isResolveFailed: true,65			wantError:       `503 Service Unavailable, {"message":"no healthy upstream","code":503}`,66		},67	}68	for _, tc := range testCase {69		t.Run(tc.desc, func(t *testing.T) {70			s := env.NewTestEnv(platform.TestDnsResolver, platform.EchoSidecar)71			// Setup dns resolver.72			dnsRecords := map[string][]string{73				toFqdnWithRoot(tc.backendHost): []string{platform.GetLoopbackAddress(), platform.GetLoopbackIPv6Address()},74			}75			dnsResolver := comp.NewDnsResolver(s.Ports().DnsResolverPort, dnsRecords)76			defer dnsResolver.Shutdown()77			go func() {78				if err := dnsResolver.ListenAndServe(); err != nil {79					t.Fatalf("Failed to set udp listener %s\n", err.Error())80				}81			}()82			// Check dns resolver's health.83			dnsResolverAddress := fmt.Sprintf("%v:%v", platform.GetLoopbackAddress(), s.Ports().DnsResolverPort)84			if err := comp.CheckDnsResolverHealth(dnsResolverAddress, tc.backendHost, platform.GetLoopbackAddress()); err != nil {85				t.Fatalf("DNS Resolver is not healthy: %v", err)86			}87			// If testing failure case, remove records after dns health check passes.88			if tc.isResolveFailed {89				delete(dnsRecords, toFqdnWithRoot(tc.backendHost))90				dnsRecords[toFqdnWithRoot("invalid."+tc.backendHost)] = []string{platform.GetLoopbackAddress(), platform.GetLoopbackIPv6Address()}91			}92			// Setup the whole test framework.93			s.SetBackendAddress(fmt.Sprintf("http://%s:%v", tc.backendHost, s.Ports().BackendServerPort))94			args := []string{"" +95				"--service_config_id=test-config-id",96				"--rollout_strategy=fixed",97				"--healthz=/healthz",98				"--dns_resolver_addresses=" + dnsResolverAddress,99			}100			defer s.TearDown(t)101			if err := s.Setup(args); err != nil {102				t.Fatalf("fail to setup test env, %v", err)103			}104			url := fmt.Sprintf("http://%v:%v/echo?key=api-key", platform.GetLoopbackAddress(), s.Ports().ListenerPort)105			resp, err := client.DoPost(url, "hello")106			if err != nil {107				if tc.wantError == "" {108					t.Errorf("Test(%v): got unexpected error: %s", tc.desc, err)109				} else if strings.Contains(err.Error(), tc.wantError) {110					t.Errorf("Test(%v): got unexpected error, expect: %s, get: %s", tc.desc, tc.wantError, err.Error())111				}112				return113			}114			if !strings.Contains(string(resp), tc.wantResp) {115				t.Errorf("Test(%v): expected: %s, got: %s", tc.desc, tc.wantResp, string(resp))116			}117		})118	}119}120func TestEnvoyDnsLookupPolicy(t *testing.T) {121	t.Parallel()122	testCase := []struct {123		desc            string124		dnsLookupPolicy string125		domainAddresses []string126		isIPv6Backend   bool127		wantResp        string128		wantError       string129	}{130		// test cases for dns lookup policy 'auto'131		// TODO(dafudeng): uncomment the following test once GCP supports IPv6132		/*133			{134				desc:            "dns resolver contains both IPv4 and IPv6 and dns lookup policy is 'auto'",135				dnsLookupPolicy: "auto",136				domainAddresses: []string{platform.GetLoopbackAddress(), platform.GetLoopbackIPv6Address()},137				isIPv6Backend:   true,138				wantResp:        v6Response,139			},140		*/141		{142			desc:            "dns resolver contains IPv4 only and dns lookup policy is 'auto'",143			dnsLookupPolicy: "auto",144			domainAddresses: []string{platform.GetLoopbackAddress()},145			isIPv6Backend:   false,146			wantResp:        v4Response,147		},148		// test cases for dns lookup policy 'v4only'149		{150			desc:            "dns resolver contains both IPv4 and IPv6 and dns lookup policy is 'v4only'",151			dnsLookupPolicy: "v4only",152			domainAddresses: []string{platform.GetLoopbackAddress(), platform.GetLoopbackIPv6Address()},153			isIPv6Backend:   false,154			wantResp:        v4Response,155		},156		{157			desc:            "dns resolver contains IPv6 only and dns lookup policy is 'v4only'",158			dnsLookupPolicy: "v4only",159			domainAddresses: []string{platform.GetLoopbackIPv6Address()},160			isIPv6Backend:   true,161			wantError:       `503 Service Unavailable, {"message":"no healthy upstream","code":503}`,162		},163		// test cases for dns lookup policy 'v6only'164		// TODO(dafudeng): uncomment the following test once GCP supports IPv6165		/*166			{167				desc:            "dns resolver contains both IPv4 and IPv6 and dns lookup policy is 'v6only'",168				dnsLookupPolicy: "v6only",169				domainAddresses: []string{platform.GetLoopbackAddress(), platform.GetLoopbackIPv6Address()},170				isIPv6Backend:   true,171				wantResp:        v6Response,172			},173		*/174		{175			desc:            "dns resolver contains IPv4 only and dns lookup policy is 'v6only'",176			dnsLookupPolicy: "v6only",177			domainAddresses: []string{platform.GetLoopbackAddress()},178			isIPv6Backend:   false,179			wantError:       `503 Service Unavailable, {"message":"no healthy upstream","code":503}`,180		},181		// test cases for dns lookup policy 'v4preferred'182		{183			desc:            "dns resolver contains both IPv4 and IPv6 and dns lookup policy is 'v4preferred'",184			dnsLookupPolicy: "v4preferred",185			domainAddresses: []string{platform.GetLoopbackAddress(), platform.GetLoopbackIPv6Address()},186			isIPv6Backend:   false,187			wantResp:        v4Response,188		},189		// TODO(dafudeng): uncomment the following test once GCP supports IPv6190		/*191			{192				desc:            "dns resolver contains IPv6 only and dns lookup policy is 'v4preferred'",193				dnsLookupPolicy: "v4preferred",194				domainAddresses: []string{platform.GetLoopbackIPv6Address()},195				isIPv6Backend:   true,196				wantResp:        v6Response,197			},198		*/199	}200	for _, tc := range testCase {201		t.Run(tc.desc, func(t *testing.T) {202			s := env.NewTestEnv(platform.TestEnvoyDnsLookupPolicy, platform.EchoSidecar)203			// Spin up dns resolver204			dnsRecords := map[string][]string{205				toFqdnWithRoot(domainName): tc.domainAddresses,206			}207			dnsResolver := comp.NewDnsResolver(s.Ports().DnsResolverPort, dnsRecords)208			defer dnsResolver.Shutdown()209			go func() {210				if err := dnsResolver.ListenAndServe(); err != nil {211					t.Fatalf("Failed to set udp listener %s\n", err.Error())212				}213			}()214			// Check dns resolver's health.215			dnsResolverAddress := fmt.Sprintf("%v:%v", platform.GetLoopbackAddress(), s.Ports().DnsResolverPort)216			if err := comp.CheckDnsResolverHealth(dnsResolverAddress, domainName, tc.domainAddresses[0]); err != nil {217				t.Fatalf("DNS Resolver is not healthy: %v", err)218			}219			// Set up the whole test framework, one echo backend will be spun up within the framework220			// The echo backend in the framework should be serving on IPv6 only when one IPv6 backend is expected to be up.221			s.SetUseIPv6Address(tc.isIPv6Backend)222			s.SetBackendAddress(fmt.Sprintf("http://%s:%v", domainName, s.Ports().BackendServerPort))223			args := []string{"" +224				"--service_config_id=test-config-id",225				"--rollout_strategy=fixed",226				"--healthz=/healthz",227				"--dns_resolver_addresses=" + dnsResolverAddress,228				"--backend_dns_lookup_family=" + tc.dnsLookupPolicy,229			}230			defer s.TearDown(t)231			if err := s.Setup(args); err != nil {232				t.Fatalf("fail to setup test env, %v", err)233			}234			// Make request and check response235			url := fmt.Sprintf("http://%v:%v/ipversion?key=api-key", platform.GetLoopbackAddress(), s.Ports().ListenerPort)236			resp, err := client.DoGet(url)237			if err != nil {238				if tc.wantError == "" {239					t.Errorf("Test(%v): got unexpected error: %s", tc.desc, err)240				} else if strings.Contains(err.Error(), tc.wantError) {241					t.Errorf("Test(%v): got unexpected error, expect: %s, get: %s", tc.desc, tc.wantError, err.Error())242				}243				return244			}245			if string(resp) != tc.wantResp {246				t.Errorf("Test(%v): expected: %s, got: %s", tc.desc, tc.wantResp, string(resp))247			}248		})249	}250}...

ports.go

Source:ports.go

1// Copyright 2019 Google LLC2//3// Licensed under the Apache License, Version 2.0 (the "License");4// you may not use this file except in compliance with the License.5// You may obtain a copy of the License at6//7//     http://www.apache.org/licenses/LICENSE-2.08//9// Unless required by applicable law or agreed to in writing, software10// distributed under the License is distributed on an "AS IS" BASIS,11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.12// See the License for the specific language governing permissions and13// limitations under the License.14package platform15import (16	"fmt"17	"net"18	"time"19	"github.com/golang/glog"20)21// Dynamic port allocation scheme22// To avoid port conflicts when setting up test env. Each test should use unique ports23// Each test has a unique test_name, its ports will be allocated based on that name24// All integration tests should be listed here to get their test ids25const (26	TestAccessLog uint16 = iota27	TestAddHeaders28	TestAsymmetricKeys29	TestAuthAllowMissing30	TestAuthJwksAsyncFetch31	TestAuthJwksCache32	TestBackendAddressOverride33	TestBackendAuthDisableAuth34	TestBackendAuthPerPlatform35	TestBackendAuthUsingIamIdTokenWithDelegates36	TestBackendAuthWithIamIdToken37	TestBackendAuthWithIamIdTokenRetries38	TestBackendAuthWithIamIdTokenTimeouts39	TestBackendAuthWithImdsIdToken40	TestBackendAuthWithImdsIdTokenRetries41	TestBackendAuthWithImdsIdTokenWhileAllowCors42	TestBackendHttpProtocol43	TestBackendPerTryTimeout44	TestBackendRetry45	TestCancellationReport46	TestCompressionTranscoded47	TestDeadlinesForDynamicRouting48	TestDeadlinesForGrpcCatchAllBackend49	TestDeadlinesForGrpcDynamicRouting50	TestDeadlinesForLocalBackend51	TestDnsResolver52	TestDownstreamMTLS53	TestDynamicBackendRoutingMutualTLS54	TestDynamicBackendRoutingTLS55	TestDynamicGrpcBackendTLS56	TestDynamicRouting57	TestDynamicRoutingCorsByEnvoy58	TestDynamicRoutingEscapeSlashes59	TestDynamicRoutingPathPreprocessing60	TestDynamicRoutingWithAllowCors61	TestEnvoyDnsLookupPolicy62	TestFrontendAndBackendAuthHeaders63	TestGeneratedHeaders64	TestGRPC65	TestGrpcBackendPreflightCors66	TestGrpcBackendSimpleCors67	TestGrpcConnectionBufferLimit68	TestGRPCErrors69	TestGRPCFallback70	TestGRPCInteropMiniStress71	TestGRPCInterops72	TestGRPCJwt73	TestGRPCMetadata74	TestGRPCMinistress75	TestGRPCStreaming76	TestGRPCWeb77	TestHealthCheckGrpcBackend78	TestHSTS79	TestHttp1Basic80	TestHttp1JWT81	TestHttpHeaders82	TestIamImdsDataPath83	TestIdleTimeoutsForGrpcStreaming84	TestIdleTimeoutsForUnaryRPCs85	TestInvalidOpenIDConnectDiscovery86	TestJwtLocations87	TestManagedServiceConfig88	TestMetadataRequestsPerPlatform89	TestMetadataRequestsWithBackendAuthPerPlatform90	TestMethodOverrideBackendBody91	TestMethodOverrideBackendMethod92	TestMethodOverrideScReport93	TestMultiGrpcServices94	TestPreflightRequestWithAllowCors95	TestProxyHandleCorsSimpleRequestsBasic96	TestProxyHandleCorsSimpleRequestsRegex97	TestProxyHandlesCorsPreflightRequestsBasic98	TestProxyHandlesCorsPreflightWithDefaultAllowOrigin99	TestReportGCPAttributes100	TestReportGCPAttributesPerPlatform101	TestReportTraceId102	TestRetryCallServiceManagement103	TestServiceControlAccessTokenFromIam104	TestServiceControlAccessTokenFromTokenAgent105	TestServiceControlAllHTTPMethod106	TestServiceControlAllHTTPPath107	TestServiceControlAPIKeyCustomLocation108	TestServiceControlAPIKeyDefaultLocation109	TestServiceControlAPIKeyIpRestriction110	TestServiceControlAPIKeyRestriction111	TestServiceControlBasic112	TestServiceControlCache113	TestServiceControlCheckError114	TestServiceControlCheckRetry115	TestServiceControlCheckServerFail116	TestServiceControlCheckTimeout117	TestServiceControlCheckWrongServerName118	TestServiceControlCredentialId119	TestServiceControlFailedRequestReport120	TestServiceControlJwtAuthFail121	TestServiceControlLogHeaders122	TestServiceControlLogJwtPayloads123	TestServiceControlNetworkFailFlagForTimeout124	TestServiceControlNetworkFailFlagForUnavailableCheckResponse125	TestServiceControlProtocolWithGRPCBackend126	TestServiceControlProtocolWithHTTPBackend127	TestServiceControlQuota128	TestServiceControlQuotaExhausted129	TestServiceControlQuotaRetry130	TestServiceControlQuotaUnavailable131	TestServiceControlReportNetworkFail132	TestServiceControlReportResponseCode133	TestServiceControlReportRetry134	TestServiceControlRequestForDynamicRouting135	TestServiceControlRequestWithAllowCors136	TestServiceControlRequestWithoutAllowCors137	TestServiceControlSkipUsage138	TestServiceControlTLSWithValidCert139	TestServiceManagementWithInvalidCert140	TestServiceManagementWithValidCert141	TestStartupDuplicatedPathsWithAllowCors142	TestStatistics143	TestStatisticsServiceControlCallStatus144	TestTraceContextPropagationHeaders145	TestTraceContextPropagationHeadersForScCheck146	TestTracesDynamicRouting147	TestTracesFetchingJwks148	TestTracesServiceControlCheckWithRetry149	TestTracesServiceControlSkipUsage150	TestTracingSampleRate151	TestTranscodingBackendUnavailableError152	TestTranscodingBindings153	TestTranscodingBindingsForCustomVerb154	TestTranscodingUnescapePlus155	TestTranscodingErrors156	TestTranscodingIgnoreQueryParameters157	TestTranscodingPrintOptions158	TestWebsocket159	// The number of total tests. has to be the last one.160	maxTestNum161)162const (163	// Start port allocation range.164	portBase uint16 = 20000165	// Maximum number of ports used by non-jwt components.166	portNum uint16 = 6167)168const (169	WorkingBackendPort string = "-1"170	InvalidBackendPort string = "6"171)172var (173	// Maximum number of ports used by jwt fake servers.174	jwtPortNum = uint16(20)175	preAllocatedPorts = map[uint16]bool{176		// Ports allocated to Jwt open-id servers177		32024: true,178		32025: true,179		32026: true,180		32027: true,181		55550: true,182	}183)184// Ports stores all used ports and other ids for shared resources185type Ports struct {186	BackendServerPort         uint16187	DynamicRoutingBackendPort uint16188	ListenerPort              uint16189	AdminPort                 uint16190	FakeStackdriverPort       uint16191	DnsResolverPort           uint16192	JwtRangeBase              uint16193	TestId                    uint16194}195func allocPortBase(testId uint16) uint16 {196	// The maximum number of ports a single test can use197	maxPortsPerTest := portNum + jwtPortNum198	// Find a range of ports that is not taken199	base := portBase + testId*maxPortsPerTest200	for i := 0; i < 10; i++ {201		if allPortFree(base, maxPortsPerTest) {202			return base203		}204		base += maxTestNum * maxPortsPerTest205	}206	glog.Warningf("test(%v) could not find free ports, continue the test...", testId)207	return base208}209func allPortFree(base uint16, ports uint16) bool {210	for port := base; port < base+ports; port++ {211		if IsPortUsed(port) {212			glog.Infoln("port is used ", port)213			return false214		}215	}216	return true217}218// IsPortUsed checks if a port is used219func IsPortUsed(port uint16) bool {220	// Check if this is pre-allocated and should not be used221	_, ok := preAllocatedPorts[port]222	if ok {223		return true224	}225	// Check if anything is listening on this port226	serverPort := fmt.Sprintf("localhost:%v", port)227	conn, _ := net.DialTimeout("tcp", serverPort, 100*time.Millisecond)228	if conn != nil {229		_ = conn.Close()230		return true231	}232	return false233}234// NewPorts allocate all ports based on test id.235func NewPorts(testId uint16) *Ports {236	base := allocPortBase(testId)237	ports := &Ports{238		BackendServerPort:         base,239		DynamicRoutingBackendPort: base + 1,240		ListenerPort:              base + 2,241		AdminPort:                 base + 4,242		FakeStackdriverPort:       base + 5,243		DnsResolverPort:           base + 6,244		JwtRangeBase:              base + 7,245		TestId:                    testId,246	}247	glog.Infof(fmt.Sprintf("Ports generated for test(%v) are: %+v", testId, ports))248	return ports249}...

dns_test.go

Source:dns_test.go

1package router_test2import (3	"fmt"4	"net"5	"testing"6	"github.com/convox/rack/pkg/router"7	"github.com/miekg/dns"8	"github.com/stretchr/testify/require"9)10func TestDNSForward(t *testing.T) {11	r := testDNSRouter{upstream: "1.1.1.1:53"}12	testDNS(t, r, func(d *router.DNS, c testDNSResolver) {13		a, err := c.Resolve(dns.TypeA, "example.org")14		require.NoError(t, err)15		require.Equal(t, dns.RcodeSuccess, a.Rcode)16	})17}18func TestDNSResolveA(t *testing.T) {19	r := testDNSRouter{20		hosts: []string{"example.convox"},21		ip:    "1.2.3.4",22	}23	testDNS(t, r, func(d *router.DNS, c testDNSResolver) {24		a, err := c.Resolve(dns.TypeA, "example.convox")25		require.NoError(t, err)26		require.Equal(t, dns.RcodeSuccess, a.Rcode)27		require.Len(t, a.Answer, 1)28		if aa, ok := a.Answer[0].(*dns.A); ok {29			require.Equal(t, net.ParseIP("1.2.3.4").To4(), aa.A)30		} else {31			t.Fatal("invalid answer type")32		}33	})34}35// func TestDNSResolveAAAA(t *testing.T) {36// 	r := testDNSRouter{37// 		hosts: []string{"example.convox"},38// 		ip:    "1.2.3.4",39// 	}40// 	testDNS(t, r, func(d *router.DNS, c testDNSResolver) {41// 		a, err := c.Resolve(dns.TypeAAAA, "example.convox")42// 		require.NoError(t, err)43// 		require.Equal(t, dns.RcodeSuccess, a.Rcode)44// 		require.Len(t, a.Answer, 1)45// 		if aa, ok := a.Answer[0].(*dns.AAAA); ok {46// 			require.Equal(t, net.ParseIP("1.2.3.4").To16(), aa.AAAA)47// 		} else {48// 			t.Fatal("invalid answer type")49// 		}50// 	})51// }52func testDNS(t *testing.T, r testDNSRouter, fn func(d *router.DNS, c testDNSResolver)) {53	conn, err := net.ListenPacket("udp", "")54	require.NoError(t, err)55	d, err := router.NewDNS(conn, r, false)56	require.NoError(t, err)57	go d.ListenAndServe()58	_, port, err := net.SplitHostPort(conn.LocalAddr().String())59	require.NoError(t, err)60	c := testDNSResolver{port: port}61	fn(d, c)62}63type testDNSResolver struct {64	port string65}66func (r testDNSResolver) Resolve(q uint16, host string) (*dns.Msg, error) {67	m := &dns.Msg{}68	m.SetQuestion(fmt.Sprintf("%s.", host), q)69	c := dns.Client{}70	a, _, err := c.Exchange(m, fmt.Sprintf("127.0.0.1:%s", r.port))71	if err != nil {72		return nil, err73	}74	return a, nil75}76type testDNSRouter struct {77	hosts    []string78	ip       string79	upstream string80}81func (r testDNSRouter) RouterIP(internal bool) string {82	return r.ip83}84func (r testDNSRouter) TargetList(host string) ([]string, error) {85	for _, h := range r.hosts {86		if h == host {87			return []string{"target"}, nil88		}89	}90	return []string{}, nil91}92func (r testDNSRouter) Upstream() (string, error) {93	return r.upstream, nil94}...

TestDNSResolver

Using AI Code Generation

1import (2func main() {3    r := new(DNSResolver)4    r.TestDNSResolver()5}6import (7func main() {8    r := new(DNSResolver)9    r.TestDNSResolver()10}11import (12func main() {13    r := new(DNSResolver)14    r.TestDNSResolver()15}16import (17func main() {18    r := new(DNSResolver)19    r.TestDNSResolver()20}21import (22func main() {23    r := new(DNSResolver)24    r.TestDNSResolver()25}26import (27func main() {28    r := new(DNSResolver)29    r.TestDNSResolver()30}31import (32func main() {33    r := new(DNSResolver)34    r.TestDNSResolver()35}36import (37func main() {38    r := new(DNSResolver)39    r.TestDNSResolver()40}41import (42func main() {43    r := new(DNSResolver)44    r.TestDNSResolver()45}46import (47func main() {48    r := new(DNSResolver)

TestDNSResolver

Using AI Code Generation

1import (2func main() {3	fmt.Println(golenv.TestDNSResolver())4}5import (6func main() {7	fmt.Println(golenv.TestDNSResolver())8}9import (10func main() {11	fmt.Println(golenv.TestDNSResolver())12}13import (14func main() {15	fmt.Println(golenv.TestDNSResolver())16}

TestDNSResolver

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello, playground")4	resolver.TestDNSResolver()5}6import (7func TestDNSResolver() {8	fmt.Println("Testing DNS resolver")9	ips, err := net.LookupIP("google.com")10	if err != nil {11		panic(err)12	}13	for _, ip := range ips {14		fmt.Println(ip)15	}16}

TestDNSResolver

Using AI Code Generation

1func main() {2    var resolver = new(DNSResolver)3    var address = resolver.TestDNSResolver("www.google.com")4    fmt.Println(address)5}6func main() {7    var resolver = new(DNSResolver)8    var address = resolver.TestDNSResolver("www.google.com")9    fmt.Println(address)10}11func main() {12    var resolver = new(DNSResolver)13    var address = resolver.TestDNSResolver("www.google.com")14    fmt.Println(address)15}16func main() {17    var resolver = new(DNSResolver)18    var address = resolver.TestDNSResolver("www.google.com")19    fmt.Println(address)20}21func main() {22    var resolver = new(DNSResolver)23    var address = resolver.TestDNSResolver("www.google.com")24    fmt.Println(address)25}26func main() {27    var resolver = new(DNSResolver)28    var address = resolver.TestDNSResolver("www.google.com")29    fmt.Println(address)30}31func main() {32    var resolver = new(DNSResolver)33    var address = resolver.TestDNSResolver("www.google.com")34    fmt.Println(address)35}36func main() {37    var resolver = new(DNSResolver)38    var address = resolver.TestDNSResolver("www.google.com")39    fmt.Println(address)40}41func main() {42    var resolver = new(DNSResolver)43    var address = resolver.TestDNSResolver("www.google.com")44    fmt.Println(address)45}46func main() {47    var resolver = new(DNSResolver)48    var address = resolver.TestDNSResolver("www.google.com")49    fmt.Println(address)50}

TestDNSResolver

Using AI Code Generation

1func main() {2    fmt.Println("Starting the application...")3    dnsResolver := TestDNSResolver{}4    dnsResolver.LookupHost("google.com")5    fmt.Println("Terminating the application...")6}7func main() {8    fmt.Println("Starting the application...")9    dnsResolver := TestDNSResolver{}10    dnsResolver.LookupHost("google.com")11    fmt.Println("Terminating the application...")12}13func main() {14    fmt.Println("Starting the application...")15    dnsResolver := TestDNSResolver{}16    dnsResolver.LookupHost("google.com")17    fmt.Println("Terminating the application...")18}19func main() {20    fmt.Println("Starting the application...")21    dnsResolver := TestDNSResolver{}22    dnsResolver.LookupHost("google.com")23    fmt.Println("Terminating the application...")24}25func main() {26    fmt.Println("Starting the application...")27    dnsResolver := TestDNSResolver{}28    dnsResolver.LookupHost("google.com")29    fmt.Println("Terminating the application...")30}31func main() {32    fmt.Println("Starting the application...")33    dnsResolver := TestDNSResolver{}34    dnsResolver.LookupHost("google.com")35    fmt.Println("Terminating the application...")36}37func main() {38    fmt.Println("Starting the application...")39    dnsResolver := TestDNSResolver{}40    dnsResolver.LookupHost("google.com")41    fmt.Println("Terminating the application...")42}43func main() {44    fmt.Println("Starting the application...")45    dnsResolver := TestDNSResolver{}46    dnsResolver.LookupHost("google.com")47    fmt.Println("Terminating the application...")48}49func main() {50    fmt.Println("Starting the application...")51    dnsResolver := TestDNSResolver{}52    dnsResolver.LookupHost("google.com")53    fmt.Println("Ter

TestDNSResolver

Using AI Code Generation

1import (2func main() {3	fmt.Println("Starting the application...")4	resolver := DNSResolver{}5	ip := resolver.TestDNSResolver(dns)6	fmt.Println("IP address is ", ip)7}8import (9func main() {10	fmt.Println("Starting the application...")11	ip := TestDNSResolver(dns)12	fmt.Println("IP address is ", ip)13}14import (15func main() {16	fmt.Println("Starting the application...")17	resolver := DNSResolver{}18	ip := resolver.TestDNSResolver(dns)19	fmt.Println("IP address is ", ip)20}21import (22func main() {23	fmt.Println("Starting the application...")24	resolver := DNSResolver{}25	ip := resolver.TestDNSResolver(dns)26	fmt.Println("IP address is ", ip)27}28import (29func main() {30	fmt.Println("Starting the application...")31	resolver := DNSResolver{}32	ip := resolver.TestDNSResolver(dns)33	fmt.Println("IP address is ", ip)34}35import (36func main() {37	fmt.Println("Starting the application...")38	resolver := DNSResolver{}39	ip := resolver.TestDNSResolver(dns)40	fmt.Println("IP address is ", ip)41}42import (43func main() {44	fmt.Println("Starting the application...")45	resolver := DNSResolver{}46	ip := resolver.TestDNSResolver(dns)47	fmt.Println("IP address is ", ip)

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