micro/service_test.go

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package micro
import (
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"context"
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"errors"
"sync"
"testing"
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glog "github.com/go-log/log"
"github.com/micro/go-micro/client"
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proto "github.com/micro/go-micro/debug/proto"
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"github.com/micro/go-micro/registry/memory"
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"github.com/micro/go-micro/util/log"
)
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func testShutdown(wg *sync.WaitGroup, cancel func()) {
// add 1
wg.Add(1)
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// shutdown the service
cancel()
// wait for stop
wg.Wait()
}
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func testService(ctx context.Context, wg *sync.WaitGroup, name string) Service {
// set no op logger
log.SetLogger(glog.DefaultLogger)
// add self
wg.Add(1)
r := memory.NewRegistry(memory.Services(testData))
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// create service
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return NewService(
Name(name),
Context(ctx),
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Registry(r),
AfterStart(func() error {
wg.Done()
return nil
}),
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AfterStop(func() error {
wg.Done()
return nil
}),
)
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}
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func testRequest(ctx context.Context, c client.Client, name string) error {
// test call debug
req := c.NewRequest(
name,
"Debug.Health",
new(proto.HealthRequest),
)
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rsp := new(proto.HealthResponse)
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err := c.Call(context.TODO(), req, rsp)
if err != nil {
return err
}
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if rsp.Status != "ok" {
return errors.New("service response: " + rsp.Status)
}
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return nil
}
// TestService tests running and calling a service
func TestService(t *testing.T) {
// waitgroup for server start
var wg sync.WaitGroup
// cancellation context
ctx, cancel := context.WithCancel(context.Background())
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// start test server
service := testService(ctx, &wg, "test.service")
go func() {
// wait for service to start
wg.Wait()
// make a test call
if err := testRequest(ctx, service.Client(), "test.service"); err != nil {
t.Fatal(err)
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}
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// shutdown the service
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testShutdown(&wg, cancel)
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}()
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// start service
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if err := service.Run(); err != nil {
t.Fatal(err)
}
}
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func benchmarkService(b *testing.B, n int, name string) {
// stop the timer
b.StopTimer()
// waitgroup for server start
var wg sync.WaitGroup
// cancellation context
ctx, cancel := context.WithCancel(context.Background())
// create test server
service := testService(ctx, &wg, name)
// start the server
go func() {
if err := service.Run(); err != nil {
b.Fatal(err)
}
}()
// wait for service to start
wg.Wait()
// make a test call to warm the cache
for i := 0; i < 10; i++ {
if err := testRequest(ctx, service.Client(), name); err != nil {
b.Fatal(err)
}
}
// start the timer
b.StartTimer()
// number of iterations
for i := 0; i < b.N; i++ {
// for concurrency
for j := 0; j < n; j++ {
wg.Add(1)
go func() {
err := testRequest(ctx, service.Client(), name)
wg.Done()
if err != nil {
b.Fatal(err)
}
}()
}
// wait for test completion
wg.Wait()
}
// stop the timer
b.StopTimer()
// shutdown service
testShutdown(&wg, cancel)
}
func BenchmarkService1(b *testing.B) {
benchmarkService(b, 1, "test.service.1")
}
func BenchmarkService8(b *testing.B) {
benchmarkService(b, 8, "test.service.8")
}
func BenchmarkService16(b *testing.B) {
benchmarkService(b, 16, "test.service.16")
}
func BenchmarkService32(b *testing.B) {
benchmarkService(b, 32, "test.service.32")
}
func BenchmarkService64(b *testing.B) {
benchmarkService(b, 64, "test.service.64")
}