Dmitry Sergeev
75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
package app_test
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import (
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"context"
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"errors"
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"mxl-pattern-generator/internal/app"
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"strings"
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"testing"
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"time"
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)
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func TestRunConcurrentCancelsSiblingAndWaitsForCleanup(t *testing.T) {
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wantErr := errors.New("writer failed")
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peerStarted := make(chan struct{})
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peerStopped := make(chan struct{})
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err := app.RunConcurrent(context.Background(),
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app.Runner{
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Name: "video",
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Run: func(ctx context.Context) error {
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<-peerStarted
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return wantErr
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},
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},
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app.Runner{
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Name: "audio",
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Run: func(ctx context.Context) error {
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close(peerStarted)
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<-ctx.Done()
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close(peerStopped)
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return nil
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},
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},
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)
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if !errors.Is(err, wantErr) {
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t.Fatalf("error = %v, want wrapped %v", err, wantErr)
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}
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if !strings.Contains(err.Error(), "video flow") {
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t.Fatalf("error = %q, want runner name", err)
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}
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select {
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case <-peerStopped:
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default:
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t.Fatal("runConcurrent returned before the sibling completed cleanup")
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}
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}
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func TestRunConcurrentParentCancellationIsGraceful(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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started := make(chan struct{})
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done := make(chan error, 1)
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go func() {
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done <- app.RunConcurrent(ctx, app.Runner{
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Name: "video",
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Run: func(ctx context.Context) error {
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close(started)
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<-ctx.Done()
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return nil
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},
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})
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}()
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<-started
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cancel()
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select {
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case err := <-done:
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if err != nil {
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t.Fatalf("runConcurrent: %v", err)
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}
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case <-time.After(time.Second):
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t.Fatal("runConcurrent did not stop after parent cancellation")
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}
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}
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