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go-micro/web/service_test.go

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package web
import (
"crypto/tls"
"fmt"
"io/ioutil"
"net/http"
"os"
"os/signal"
"syscall"
"testing"
"time"
"github.com/micro/go-micro/v2/registry"
"github.com/micro/go-micro/v2/registry/memory"
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)
func TestService(t *testing.T) {
var (
beforeStartCalled bool
afterStartCalled bool
beforeStopCalled bool
afterStopCalled bool
str = `<html><body><h1>Hello World</h1></body></html>`
fn = func(w http.ResponseWriter, r *http.Request) { fmt.Fprint(w, str) }
reg = memory.NewRegistry()
)
beforeStart := func() error {
beforeStartCalled = true
return nil
}
afterStart := func() error {
afterStartCalled = true
return nil
}
beforeStop := func() error {
beforeStopCalled = true
return nil
}
afterStop := func() error {
afterStopCalled = true
return nil
}
service := NewService(
Name("go.micro.web.test"),
Registry(reg),
BeforeStart(beforeStart),
AfterStart(afterStart),
BeforeStop(beforeStop),
AfterStop(afterStop),
)
service.HandleFunc("/", fn)
errCh := make(chan error, 1)
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go func() {
errCh <- service.Run()
close(errCh)
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}()
var s []*registry.Service
eventually(func() bool {
var err error
s, err = reg.GetService("go.micro.web.test")
return err == nil
}, t.Fatal)
if have, want := len(s), 1; have != want {
t.Fatalf("Expected %d but got %d services", want, have)
}
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rsp, err := http.Get(fmt.Sprintf("http://%s", s[0].Nodes[0].Address))
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if err != nil {
t.Fatal(err)
}
defer rsp.Body.Close()
b, err := ioutil.ReadAll(rsp.Body)
if err != nil {
t.Fatal(err)
}
if string(b) != str {
t.Errorf("Expected %s got %s", str, string(b))
}
callbackTests := []struct {
subject string
have interface{}
}{
{"beforeStartCalled", beforeStartCalled},
{"afterStartCalled", afterStartCalled},
}
for _, tt := range callbackTests {
if tt.have != true {
t.Errorf("unexpected %s: want true, have false", tt.subject)
}
}
select {
case err := <-errCh:
if err != nil {
t.Fatalf("service.Run():%v", err)
}
case <-time.After(time.Duration(time.Second)):
if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
t.Logf("service.Run() survived a client request without an error")
}
}
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ch := make(chan os.Signal, 1)
signal.Notify(ch, syscall.SIGTERM)
p, _ := os.FindProcess(os.Getpid())
p.Signal(syscall.SIGTERM)
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<-ch
select {
case err := <-errCh:
if err != nil {
t.Fatalf("service.Run():%v", err)
} else {
if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
t.Log("service.Run() nil return on syscall.SIGTERM")
}
}
case <-time.After(time.Duration(time.Second)):
if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
t.Logf("service.Run() survived a client request without an error")
}
}
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eventually(func() bool {
_, err := reg.GetService("go.micro.web.test")
return err == registry.ErrNotFound
}, t.Error)
callbackTests = []struct {
subject string
have interface{}
}{
{"beforeStopCalled", beforeStopCalled},
{"afterStopCalled", afterStopCalled},
}
for _, tt := range callbackTests {
if tt.have != true {
t.Errorf("unexpected %s: want true, have false", tt.subject)
}
}
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}
func TestOptions(t *testing.T) {
var (
name = "service-name"
id = "service-id"
version = "service-version"
address = "service-addr:8080"
advertise = "service-adv:8080"
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reg = memory.NewRegistry()
registerTTL = 123 * time.Second
registerInterval = 456 * time.Second
handler = http.NewServeMux()
metadata = map[string]string{"key": "val"}
secure = true
)
service := NewService(
Name(name),
Id(id),
Version(version),
Address(address),
Advertise(advertise),
Registry(reg),
RegisterTTL(registerTTL),
RegisterInterval(registerInterval),
Handler(handler),
Metadata(metadata),
Secure(secure),
)
opts := service.Options()
tests := []struct {
subject string
want interface{}
have interface{}
}{
{"name", name, opts.Name},
{"version", version, opts.Version},
{"id", id, opts.Id},
{"address", address, opts.Address},
{"advertise", advertise, opts.Advertise},
{"registry", reg, opts.Registry},
{"registerTTL", registerTTL, opts.RegisterTTL},
{"registerInterval", registerInterval, opts.RegisterInterval},
{"handler", handler, opts.Handler},
{"metadata", metadata["key"], opts.Metadata["key"]},
{"secure", secure, opts.Secure},
}
for _, tc := range tests {
if tc.want != tc.have {
t.Errorf("unexpected %s: want %v, have %v", tc.subject, tc.want, tc.have)
}
}
}
func eventually(pass func() bool, fail func(...interface{})) {
tick := time.NewTicker(10 * time.Millisecond)
defer tick.Stop()
timeout := time.After(time.Second)
for {
select {
case <-timeout:
fail("timed out")
return
case <-tick.C:
if pass() {
return
}
}
}
}
func TestTLS(t *testing.T) {
var (
str = `<html><body><h1>Hello World</h1></body></html>`
fn = func(w http.ResponseWriter, r *http.Request) { fmt.Fprint(w, str) }
secure = true
reg = memory.NewRegistry()
)
service := NewService(
Name("go.micro.web.test"),
Secure(secure),
Registry(reg),
)
service.HandleFunc("/", fn)
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errCh := make(chan error, 1)
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go func() {
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errCh <- service.Run()
close(errCh)
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}()
var s []*registry.Service
eventually(func() bool {
var err error
s, err = reg.GetService("go.micro.web.test")
return err == nil
}, t.Fatal)
if have, want := len(s), 1; have != want {
t.Fatalf("Expected %d but got %d services", want, have)
}
tr := &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
client := &http.Client{Transport: tr}
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rsp, err := client.Get(fmt.Sprintf("https://%s", s[0].Nodes[0].Address))
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if err != nil {
t.Fatal(err)
}
defer rsp.Body.Close()
b, err := ioutil.ReadAll(rsp.Body)
if err != nil {
t.Fatal(err)
}
if string(b) != str {
t.Errorf("Expected %s got %s", str, string(b))
}
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select {
case err := <-errCh:
if err != nil {
t.Fatalf("service.Run():%v", err)
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}
case <-time.After(time.Duration(time.Second)):
if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
t.Logf("service.Run() survived a client request without an error")
}
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}
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}