X-Git-Url: https://git.korewanetadesu.com/?p=go-signalcontext.git;a=blobdiff_plain;f=context_test.go;h=bc755a4ec5b818a7cde4bdaf2d44a6008397b3d9;hp=a7b30a480a1e854edf6501e455a2a6006103de05;hb=ee7aee79cc9e3e3ccf2929c4eb50ac485ad3c915;hpb=8cf685c73e37c718d1dcfe057caad080196f3e18

diff --git a/context_test.go b/context_test.go
index a7b30a4..bc755a4 100644
--- a/context_test.go
+++ b/context_test.go
@@ -64,7 +64,7 @@ func TestCancelAfterSignal(t *testing.T) {
 	assert.Equal(t, Error{syscall.SIGUSR2}, ctx.Err())
 }
 
-func TestImmediateCompletion(t *testing.T) {
+func TestPrecanceled(t *testing.T) {
 	parent, cancel := context.WithCancel(context.Background())
 	cancel()
 	<-parent.Done()
@@ -75,7 +75,7 @@ func TestImmediateCompletion(t *testing.T) {
 	case _, ok := <-ctx.Done():
 		assert.False(t, ok, "Done() should be closed")
 	default:
-		assert.False(t, true, "context should be complete")
+		assert.False(t, true, "Done() should be closed")
 	}
 	assert.Equal(t, context.Canceled, ctx.Err())
 }
@@ -120,3 +120,14 @@ func BenchmarkCanceledAsChild(b *testing.B) {
 		<-children[i].Done()
 	}
 }
+
+func BenchmarkPrecanceled(b *testing.B) {
+	parent, cancel := context.WithCancel(context.Background())
+	cancel()
+	<-parent.Done()
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		ctx := UntilSignal(parent, syscall.SIGUSR2)
+		<-ctx.Done()
+	}
+}