97 lines
1.7 KiB
Go
97 lines
1.7 KiB
Go
package testing
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import (
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"context"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"forge.cadoles.com/arcad/edge/pkg/bus"
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"github.com/pkg/errors"
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)
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const (
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testNamespace bus.MessageNamespace = "testNamespace"
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)
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type testMessage struct{}
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func (e *testMessage) MessageNamespace() bus.MessageNamespace {
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return testNamespace
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}
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func TestPublishSubscribe(t *testing.T, b bus.Bus) {
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ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
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defer cancel()
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t.Log("subscribe")
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messages, err := b.Subscribe(ctx, testNamespace)
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if err != nil {
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t.Fatal(errors.WithStack(err))
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}
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var wg sync.WaitGroup
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wg.Add(5)
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go func() {
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// 5 events should be received
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t.Log("publish 0")
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if err := b.Publish(ctx, &testMessage{}); err != nil {
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t.Error(errors.WithStack(err))
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}
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t.Log("publish 1")
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if err := b.Publish(ctx, &testMessage{}); err != nil {
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t.Error(errors.WithStack(err))
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}
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t.Log("publish 2")
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if err := b.Publish(ctx, &testMessage{}); err != nil {
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t.Error(errors.WithStack(err))
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}
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t.Log("publish 3")
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if err := b.Publish(ctx, &testMessage{}); err != nil {
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t.Error(errors.WithStack(err))
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}
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t.Log("publish 4")
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if err := b.Publish(ctx, &testMessage{}); err != nil {
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t.Error(errors.WithStack(err))
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}
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}()
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var count int32 = 0
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go func() {
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t.Log("range for events")
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for msg := range messages {
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t.Logf("received msg %d", atomic.LoadInt32(&count))
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atomic.AddInt32(&count, 1)
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if e, g := testNamespace, msg.MessageNamespace(); e != g {
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t.Errorf("evt.MessageNamespace(): expected '%v', got '%v'", e, g)
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}
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wg.Done()
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}
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}()
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wg.Wait()
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b.Unsubscribe(ctx, testNamespace, messages)
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if e, g := int32(5), count; e != g {
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t.Errorf("message received count: expected '%v', got '%v'", e, g)
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}
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}
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