10467: Abandon Azure requests if client hangs up.

[arvados.git] / services / keepstore / azure_blob_volume_test.go

diff --git a/services/keepstore/azure_blob_volume_test.go b/services/keepstore/azure_blob_volume_test.go
index c5dbc8f5831402aa3e223391c3ad0ece918de0a3..232382c4216a60fd3c9f658a549957441805633a 100644 (file)
--- a/services/keepstore/azure_blob_volume_test.go
+++ b/services/keepstore/azure_blob_volume_test.go
@@ -576,6 +576,70 @@ func TestAzureBlobVolumeCreateBlobRaceDeadline(t *testing.T) {
        }
 }
 
+func TestAzureBlobVolumeContextCancelGet(t *testing.T) {
+       testAzureBlobVolumeContextCancel(t, func(ctx context.Context, v *TestableAzureBlobVolume) error {
+               v.PutRaw(TestHash, TestBlock)
+               _, err := v.Get(ctx, TestHash, make([]byte, BlockSize))
+               return err
+       })
+}
+
+func TestAzureBlobVolumeContextCancelPut(t *testing.T) {
+       testAzureBlobVolumeContextCancel(t, func(ctx context.Context, v *TestableAzureBlobVolume) error {
+               return v.Put(ctx, TestHash, make([]byte, BlockSize))
+       })
+}
+
+func TestAzureBlobVolumeContextCancelCompare(t *testing.T) {
+       testAzureBlobVolumeContextCancel(t, func(ctx context.Context, v *TestableAzureBlobVolume) error {
+               v.PutRaw(TestHash, TestBlock)
+               return v.Compare(ctx, TestHash, TestBlock2)
+       })
+}
+
+func testAzureBlobVolumeContextCancel(t *testing.T, testFunc func(context.Context, *TestableAzureBlobVolume) error) {
+       defer func(t http.RoundTripper) {
+               http.DefaultTransport = t
+       }(http.DefaultTransport)
+       http.DefaultTransport = &http.Transport{
+               Dial: (&azStubDialer{}).Dial,
+       }
+
+       v := NewTestableAzureBlobVolume(t, false, 3)
+       defer v.Teardown()
+       v.azHandler.race = make(chan chan struct{})
+
+       ctx, cancel := context.WithCancel(context.Background())
+       allDone := make(chan struct{})
+       go func() {
+               defer close(allDone)
+               err := testFunc(ctx, v)
+               if err != context.Canceled {
+                       t.Errorf("got %T %q, expected %q", err, err, context.Canceled)
+               }
+       }()
+       releaseHandler := make(chan struct{})
+       select {
+       case <-allDone:
+               t.Error("testFunc finished without waiting for v.azHandler.race")
+       case <-time.After(10 * time.Second):
+               t.Error("timed out waiting to enter handler")
+       case v.azHandler.race <- releaseHandler:
+       }
+
+       cancel()
+
+       select {
+       case <-time.After(10 * time.Second):
+               t.Error("timed out waiting to cancel")
+       case <-allDone:
+       }
+
+       go func() {
+               <-releaseHandler
+       }()
+}
+
 func (v *TestableAzureBlobVolume) PutRaw(locator string, data []byte) {
        v.azHandler.PutRaw(v.ContainerName, locator, data)
 }