X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/0e5198142fdba0ce2af6eb2852d45dff46ffb2e2..3f0ec839af28e56eb94bc9507ab59df1e670e59f:/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 c8c898fe2d..4b015a9962 100644 --- a/services/keepstore/azure_blob_volume_test.go +++ b/services/keepstore/azure_blob_volume_test.go @@ -2,13 +2,14 @@ package main import ( "bytes" + "context" "crypto/md5" "encoding/base64" + "encoding/json" "encoding/xml" "flag" "fmt" "io/ioutil" - "log" "math/rand" "net" "net/http" @@ -21,13 +22,18 @@ import ( "testing" "time" + log "github.com/Sirupsen/logrus" "github.com/curoverse/azure-sdk-for-go/storage" + check "gopkg.in/check.v1" ) const ( - // The same fake credentials used by Microsoft's Azure emulator - emulatorAccountName = "devstoreaccount1" - emulatorAccountKey = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==" + // This cannot be the fake account name "devstoreaccount1" + // used by Microsoft's Azure emulator: the Azure SDK + // recognizes that magic string and changes its behavior to + // cater to the Azure SDK's own test suite. + fakeAccountName = "fakeAccountName" + fakeAccountKey = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==" ) var azureTestContainer string @@ -349,7 +355,7 @@ func NewTestableAzureBlobVolume(t TB, readonly bool, replication int) *TestableA // Connect to stub instead of real Azure storage service stubURLBase := strings.Split(azStub.URL, "://")[1] var err error - if azClient, err = storage.NewClient(emulatorAccountName, emulatorAccountKey, stubURLBase, storage.DefaultAPIVersion, false); err != nil { + if azClient, err = storage.NewClient(fakeAccountName, fakeAccountKey, stubURLBase, storage.DefaultAPIVersion, false); err != nil { t.Fatal(err) } container = "fakecontainername" @@ -365,12 +371,13 @@ func NewTestableAzureBlobVolume(t TB, readonly bool, replication int) *TestableA } } + bs := azClient.GetBlobService() v := &AzureBlobVolume{ ContainerName: container, ReadOnly: readonly, AzureReplication: replication, azClient: azClient, - bsClient: azClient.GetBlobService(), + bsClient: &azureBlobClient{client: &bs}, } return &TestableAzureBlobVolume{ @@ -381,6 +388,29 @@ func NewTestableAzureBlobVolume(t TB, readonly bool, replication int) *TestableA } } +var _ = check.Suite(&StubbedAzureBlobSuite{}) + +type StubbedAzureBlobSuite struct { + volume *TestableAzureBlobVolume + origHTTPTransport http.RoundTripper +} + +func (s *StubbedAzureBlobSuite) SetUpTest(c *check.C) { + s.origHTTPTransport = http.DefaultTransport + http.DefaultTransport = &http.Transport{ + Dial: (&azStubDialer{}).Dial, + } + azureWriteRaceInterval = time.Millisecond + azureWriteRacePollTime = time.Nanosecond + + s.volume = NewTestableAzureBlobVolume(c, false, 3) +} + +func (s *StubbedAzureBlobSuite) TearDownTest(c *check.C) { + s.volume.Teardown() + http.DefaultTransport = s.origHTTPTransport +} + func TestAzureBlobVolumeWithGeneric(t *testing.T) { defer func(t http.RoundTripper) { http.DefaultTransport = t @@ -454,21 +484,21 @@ func TestAzureBlobVolumeRangeFenceposts(t *testing.T) { data[i] = byte((i + 7) & 0xff) } hash := fmt.Sprintf("%x", md5.Sum(data)) - err := v.Put(hash, data) + err := v.Put(context.Background(), hash, data) if err != nil { t.Error(err) } gotData := make([]byte, len(data)) - gotLen, err := v.Get(hash, gotData) + gotLen, err := v.Get(context.Background(), hash, gotData) if err != nil { t.Error(err) } gotHash := fmt.Sprintf("%x", md5.Sum(gotData)) if gotLen != size { - t.Error("length mismatch: got %d != %d", gotLen, size) + t.Errorf("length mismatch: got %d != %d", gotLen, size) } if gotHash != hash { - t.Error("hash mismatch: got %s != %s", gotHash, hash) + t.Errorf("hash mismatch: got %s != %s", gotHash, hash) } } } @@ -500,7 +530,7 @@ func TestAzureBlobVolumeCreateBlobRace(t *testing.T) { allDone := make(chan struct{}) v.azHandler.race = make(chan chan struct{}) go func() { - err := v.Put(TestHash, TestBlock) + err := v.Put(context.Background(), TestHash, TestBlock) if err != nil { t.Error(err) } @@ -510,7 +540,7 @@ func TestAzureBlobVolumeCreateBlobRace(t *testing.T) { v.azHandler.race <- continuePut go func() { buf := make([]byte, len(TestBlock)) - _, err := v.Get(TestHash, buf) + _, err := v.Get(context.Background(), TestHash, buf) if err != nil { t.Error(err) } @@ -553,7 +583,7 @@ func TestAzureBlobVolumeCreateBlobRaceDeadline(t *testing.T) { go func() { defer close(allDone) buf := make([]byte, BlockSize) - n, err := v.Get(TestHash, buf) + n, err := v.Get(context.Background(), TestHash, buf) if err != nil { t.Error(err) return @@ -575,6 +605,100 @@ 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 (s *StubbedAzureBlobSuite) TestStats(c *check.C) { + stats := func() string { + buf, err := json.Marshal(s.volume.InternalStats()) + c.Check(err, check.IsNil) + return string(buf) + } + + c.Check(stats(), check.Matches, `.*"Ops":0,.*`) + c.Check(stats(), check.Matches, `.*"Errors":0,.*`) + + loc := "acbd18db4cc2f85cedef654fccc4a4d8" + _, err := s.volume.Get(context.Background(), loc, make([]byte, 3)) + c.Check(err, check.NotNil) + c.Check(stats(), check.Matches, `.*"Ops":[^0],.*`) + c.Check(stats(), check.Matches, `.*"Errors":[^0],.*`) + c.Check(stats(), check.Matches, `.*"storage\.AzureStorageServiceError 404 \(404 Not Found\)":[^0].*`) + c.Check(stats(), check.Matches, `.*"InBytes":0,.*`) + + err = s.volume.Put(context.Background(), loc, []byte("foo")) + c.Check(err, check.IsNil) + c.Check(stats(), check.Matches, `.*"OutBytes":3,.*`) + c.Check(stats(), check.Matches, `.*"CreateOps":1,.*`) + + _, err = s.volume.Get(context.Background(), loc, make([]byte, 3)) + c.Check(err, check.IsNil) + _, err = s.volume.Get(context.Background(), loc, make([]byte, 3)) + c.Check(err, check.IsNil) + c.Check(stats(), check.Matches, `.*"InBytes":6,.*`) +} + func (v *TestableAzureBlobVolume) PutRaw(locator string, data []byte) { v.azHandler.PutRaw(v.ContainerName, locator, data) }