How to use newResolver method of netext Package

Best K6 code snippet using netext.newResolver

dialer_test.go

Source:dialer_test.go

...26	"go.k6.io/k6/lib/testutils/mockresolver"27	"go.k6.io/k6/lib/types"28)29func TestDialerAddr(t *testing.T) {30	dialer := NewDialer(net.Dialer{}, newResolver())31	dialer.Hosts = map[string]*lib.HostAddress{32		"example.com":                {IP: net.ParseIP("3.4.5.6")},33		"example.com:443":            {IP: net.ParseIP("3.4.5.6"), Port: 8443},34		"example.com:8080":           {IP: net.ParseIP("3.4.5.6"), Port: 9090},35		"example-deny-host.com":      {IP: net.ParseIP("8.9.10.11")},36		"example-ipv6.com":           {IP: net.ParseIP("2001:db8::68")},37		"example-ipv6.com:443":       {IP: net.ParseIP("2001:db8::68"), Port: 8443},38		"example-ipv6-deny-host.com": {IP: net.ParseIP("::1")},39	}40	ipNet, err := lib.ParseCIDR("8.9.10.0/24")41	require.NoError(t, err)42	ipV6Net, err := lib.ParseCIDR("::1/24")43	require.NoError(t, err)44	dialer.Blacklist = []*lib.IPNet{ipNet, ipV6Net}45	testCases := []struct {46		address, expAddress, expErr string47	}{48		// IPv449		{"example-resolver.com:80", "1.2.3.4:80", ""},50		{"example.com:80", "3.4.5.6:80", ""},51		{"example.com:443", "3.4.5.6:8443", ""},52		{"example.com:8080", "3.4.5.6:9090", ""},53		{"1.2.3.4:80", "1.2.3.4:80", ""},54		{"1.2.3.4", "", "address 1.2.3.4: missing port in address"},55		{"example-deny-resolver.com:80", "", "IP (8.9.10.11) is in a blacklisted range (8.9.10.0/24)"},56		{"example-deny-host.com:80", "", "IP (8.9.10.11) is in a blacklisted range (8.9.10.0/24)"},57		{"no-such-host.com:80", "", "lookup no-such-host.com: no such host"},58		// IPv659		{"example-ipv6.com:443", "[2001:db8::68]:8443", ""},60		{"[2001:db8:aaaa:1::100]:443", "[2001:db8:aaaa:1::100]:443", ""},61		{"[::1.2.3.4]", "", "address [::1.2.3.4]: missing port in address"},62		{"example-ipv6-deny-resolver.com:80", "", "IP (::1) is in a blacklisted range (::/24)"},63		{"example-ipv6-deny-host.com:80", "", "IP (::1) is in a blacklisted range (::/24)"},64		{"example-ipv6-deny-host.com:80", "", "IP (::1) is in a blacklisted range (::/24)"},65	}66	for _, tc := range testCases {67		tc := tc68		t.Run(tc.address, func(t *testing.T) {69			addr, err := dialer.getDialAddr(tc.address)70			if tc.expErr != "" {71				require.EqualError(t, err, tc.expErr)72			} else {73				require.NoError(t, err)74				require.Equal(t, tc.expAddress, addr)75			}76		})77	}78}79func TestDialerAddrBlockHostnamesStar(t *testing.T) {80	dialer := NewDialer(net.Dialer{}, newResolver())81	dialer.Hosts = map[string]*lib.HostAddress{82		"example.com": {IP: net.ParseIP("3.4.5.6")},83	}84	blocked, err := types.NewHostnameTrie([]string{"*"})85	require.NoError(t, err)86	dialer.BlockedHostnames = blocked87	testCases := []struct {88		address, expAddress, expErr string89	}{90		// IPv491		{"example.com:80", "", "hostname (example.com) is in a blocked pattern (*)"},92		{"example.com:443", "", "hostname (example.com) is in a blocked pattern (*)"},93		{"not.com:30", "", "hostname (not.com) is in a blocked pattern (*)"},94		{"1.2.3.4:80", "1.2.3.4:80", ""},95	}96	for _, tc := range testCases {97		tc := tc98		t.Run(tc.address, func(t *testing.T) {99			addr, err := dialer.getDialAddr(tc.address)100			if tc.expErr != "" {101				require.EqualError(t, err, tc.expErr)102			} else {103				require.NoError(t, err)104				require.Equal(t, tc.expAddress, addr)105			}106		})107	}108}109func newResolver() *mockresolver.MockResolver {110	return mockresolver.New(111		map[string][]net.IP{112			"example-resolver.com":           {net.ParseIP("1.2.3.4")},113			"example-deny-resolver.com":      {net.ParseIP("8.9.10.11")},114			"example-ipv6-deny-resolver.com": {net.ParseIP("::1")},115		}, nil,116	)117}...

newResolver

Using AI Code Generation

1import (2func init() {3    modules.Register("k6/x/netext", new(netext))4}5type netext struct{}6func (e *netext) NewResolver(ctxPtr *context.Context) *Resolver {7    r := &Resolver{}8    r.state = ctxPtr.GetState(r)9    r.state.Lock()10    defer r.state.Unlock()11    if r.state.VU == nil {12        r.state.Logger.Warn("netext.NewResolver() called in the init context, this won't work as expected")13    }14    r.state.VU.Runtime.Set("__ENV", common.Bind(r.state.VU.Env, ctxPtr, nil))15    r.state.VU.Runtime.Set("__VU", common.Bind(r.state.VU, ctxPtr, nil))16    r.state.VU.Runtime.Set("__ITER", common.Bind(r.state.VU.Iteration, ctxPtr, nil))17}18type Resolver struct {19}20func (r *Resolver) LookupIP(host string) ([]net.IP, error) {21    r.state.Lock()22    defer r.state.Unlock()23    if r.state.VU == nil {24        return nil, errors.New("netext.Resolver.LookupIP() called in the init context, this won't work as expected")25    }26    return r.state.VU.Runtime.LookupIP(host)27}28func (r *Runtime) LookupIP(host string) ([]net.IP, error) {29    if r == nil {30        return nil, errors.New("LookupIP() called on a nil Runtime")31    }32    return net.DefaultResolver.LookupIP(r.ctx, "ip", host)33}34import (35func init() {36    modules.Register("k6/x/netext", new(netext))37}

newResolver

Using AI Code Generation

1import (2func main() {3    resolver := netext.NewResolver()4    addrs, _ := resolver.LookupHost("www.google.com")5    fmt.Println(addrs)6}7import (8func main() {9    resolver := netext.NewResolver()10    addrs, _ := resolver.LookupHost("www.google.com")11    fmt.Println(addrs)12}13import (14func main() {15    resolver := netext.NewResolver()16    addrs, _ := resolver.LookupHost("www.google.com")17    fmt.Println(addrs)18}19import (20func main() {21    resolver := netext.NewResolver()22    addrs, _ := resolver.LookupHost("www.google.com")23    fmt.Println(addrs)24}25import (26func main() {27    resolver := netext.NewResolver()28    addrs, _ := resolver.LookupHost("www.google.com")29    fmt.Println(addrs)30}31import (32func main() {33    resolver := netext.NewResolver()34    addrs, _ := resolver.LookupHost("www.google.com")35    fmt.Println(addrs)36}37import (38func main() {39    resolver := netext.NewResolver()40    addrs, _ := resolver.LookupHost("www.google.com")41    fmt.Println(addrs)42}43import (44func main() {45    resolver := netext.NewResolver()46    addrs, _ := resolver.LookupHost("

newResolver

Using AI Code Generation

1import (2func main() {3    r := netext.NewResolver()4    r.Dialer = &net.Dialer{5    }6    r.Dial = func(ctx context.Context, network, address string) (net.Conn, error) {7        d := net.Dialer{}8        return d.DialContext(ctx, "udp", "

newResolver

Using AI Code Generation

1import (2func main() {3    resolver := netext.NewResolver()4    addresses, err := resolver.LookupHost("example.com")5    if err != nil {6        panic(err)7    }8    for _, address := range addresses {9        fmt.Println(address)10    }11}12import (13func main() {14    resolver := netext.NewResolver()15    addresses, err := resolver.LookupHost("example.com")16    if err != nil {17        panic(err)18    }19    for _, address := range addresses {20        fmt.Println(address)21    }22}23import (24func main() {25    resolver := netext.NewResolver()26    addresses, err := resolver.LookupHost("example.com")27    if err != nil {28        panic(err)29    }30    for _, address := range addresses {31        fmt.Println(address)32    }33}34import (35func main() {36    resolver := netext.NewResolver()37    addresses, err := resolver.LookupHost("example.com")38    if err != nil {39        panic(err)40    }41    for _, address := range addresses {42        fmt.Println(address)43    }44}45import (46func main() {47    resolver := netext.NewResolver()48    addresses, err := resolver.LookupHost("example.com")49    if err != nil {50        panic(err)51    }52    for _, address := range addresses {53        fmt.Println(address)54    }55}56import (57func main() {58    resolver := netext.NewResolver()59    addresses, err := resolver.LookupHost("example.com")60    if err != nil {61        panic(err)62    }63    for _, address := range addresses {

newResolver

Using AI Code Generation

1func main() {2}3func main() {4}5func main() {6}7func main() {8}9func main() {10}11func main() {12}13func main() {14}15func main() {16}

newResolver

Using AI Code Generation

1resolvers, err := netext.ResolverList(netext.NewResolver())2if err != nil {3}4resolvers, err := netext.ResolverList(netext.NewResolver())5if err != nil {6}7resolvers, err := netext.ResolverList(netext.NewResolver())8if err != nil {9}10resolvers, err := netext.ResolverList(netext.NewResolver())11if err != nil {12}13resolvers, err := netext.ResolverList(netext.NewResolver())14if err != nil {15}16resolvers, err := netext.ResolverList(netext.NewResolver())17if err != nil {18}19resolvers, err := netext.ResolverList(netext.NewResolver())20if err != nil {21}22resolvers, err := netext.ResolverList(netext.NewResolver())23if err != nil {24}25resolvers, err := netext.ResolverList(netext.NewResolver())26if err != nil {27}28resolvers, err := netext.ResolverList(netext.NewResolver())29if err != nil {30}31resolvers, err := netext.ResolverList(netext.NewResolver())32if err != nil {33}34resolvers, err := netext.ResolverList(netext.NewResolver())35if err != nil {36}37resolvers, err := netext.ResolverList(netext

newResolver

Using AI Code Generation

1func main() {2    r := netext.NewResolver()3    ip, err := r.LookupIPAddr("example.com")4    if err != nil {5        panic(err)6    }7    fmt.Println(ip)8}9func main() {10    r := netext.NewResolver()11    ip, err := r.LookupIPAddr("example.com")12    if err != nil {13        panic(err)14    }15    fmt.Println(ip)16}17func main() {18    r := netext.NewResolver()19    ip, err := r.LookupIPAddr("example.com")20    if err != nil {21        panic(err)22    }23    fmt.Println(ip)24}25func main() {26    r := netext.NewResolver()27    ip, err := r.LookupIPAddr("example.com")28    if err != nil {29        panic(err)30    }31    fmt.Println(ip)32}

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