66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
package main
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import (
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"context"
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"errors"
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"net/http"
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"strings"
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"testing"
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"time"
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)
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func TestRunComponentsWaitsForInflightWorker(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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httpStopped := make(chan struct{})
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workerStarted := make(chan struct{})
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workerCanceled := make(chan struct{})
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releaseWorker := make(chan struct{})
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done := make(chan error, 1)
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go func() {
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done <- runComponents(ctx, func() error {
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<-httpStopped
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return http.ErrServerClosed
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}, func(context.Context) error {
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close(httpStopped)
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return nil
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}, func(workerCtx context.Context) error {
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close(workerStarted)
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<-workerCtx.Done()
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close(workerCanceled)
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<-releaseWorker
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return nil
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})
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}()
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<-workerStarted
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cancel()
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<-workerCanceled
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select {
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case err := <-done:
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t.Fatalf("runComponents returned before inflight worker completed: %v", err)
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case <-time.After(20 * time.Millisecond):
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}
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close(releaseWorker)
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if err := <-done; err != nil {
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t.Fatal(err)
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}
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}
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func TestRunComponentsFailsClosedWhenWorkerStops(t *testing.T) {
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httpStopped := make(chan struct{})
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workerErr := errors.New("worker unavailable")
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err := runComponents(context.Background(), func() error {
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<-httpStopped
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return http.ErrServerClosed
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}, func(context.Context) error {
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close(httpStopped)
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return nil
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}, func(context.Context) error {
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return workerErr
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})
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if err == nil || !strings.Contains(err.Error(), workerErr.Error()) {
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t.Fatalf("expected worker failure, got %v", err)
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}
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}
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