func doCancelAfterFirstResponse(tc testpb.TestServiceClient) {
ctx, cancel := context.WithCancel(context.Background())
stream, err := tc.FullDuplexCall(ctx)
if err != nil {
grpclog.Fatalf("%v.FullDuplexCall(_) = _, %v", tc, err)
}
respParam := []*testpb.ResponseParameters{
{
Size: proto.Int32(31415),
},
}
pl := newPayload(testpb.PayloadType_COMPRESSABLE, 27182)
req := &testpb.StreamingOutputCallRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseParameters: respParam,
Payload: pl,
}
if err := stream.Send(req); err != nil {
grpclog.Fatalf("%v.Send(%v) = %v", stream, req, err)
}
if _, err := stream.Recv(); err != nil {
grpclog.Fatalf("%v.Recv() = %v", stream, err)
}
cancel()
if _, err := stream.Recv(); grpc.Code(err) != codes.Canceled {
grpclog.Fatalf("%v compleled with error code %d, want %d", stream, grpc.Code(err), codes.Canceled)
}
grpclog.Println("CancelAfterFirstResponse done")
}
func doCancelAfterBegin(tc testpb.TestServiceClient) {
ctx, cancel := context.WithCancel(metadata.NewContext(context.Background(), testMetadata))
stream, err := tc.StreamingInputCall(ctx)
if err != nil {
grpclog.Fatalf("%v.StreamingInputCall(_) = _, %v", tc, err)
}
cancel()
_, err = stream.CloseAndRecv()
if grpc.Code(err) != codes.Canceled {
grpclog.Fatalf("%v.CloseAndRecv() got error code %d, want %d", stream, grpc.Code(err), codes.Canceled)
}
grpclog.Println("CancelAfterBegin done")
}
func testTimeoutOnDeadServer(t *testing.T, e env) {
s, cc := setUp(math.MaxUint32, e)
tc := testpb.NewTestServiceClient(cc)
s.Stop()
// Set -1 as the timeout to make sure if transportMonitor gets error
// notification in time the failure path of the 1st invoke of
// ClientConn.wait hits the deadline exceeded error.
ctx, _ := context.WithTimeout(context.Background(), -1)
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}); grpc.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/EmptyCall(%v, _) = _, error %v, want _, error code: %d", ctx, err, codes.DeadlineExceeded)
}
cc.Close()
}
func testCancel(t *testing.T, e env) {
s, cc := setUp(math.MaxUint32, e)
tc := testpb.NewTestServiceClient(cc)
defer tearDown(s, cc)
argSize := 2718
respSize := 314
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(respSize)),
Payload: newPayload(testpb.PayloadType_COMPRESSABLE, int32(argSize)),
}
ctx, cancel := context.WithCancel(context.Background())
time.AfterFunc(1*time.Millisecond, cancel)
reply, err := tc.UnaryCall(ctx, req)
if grpc.Code(err) != codes.Canceled {
t.Fatalf(`TestService/UnaryCall(_, _) = %v, %v; want <nil>, error code: %d`, reply, err, codes.Canceled)
}
}
func testExceedMaxStreamsLimit(t *testing.T, e env) {
// Only allows 1 live stream per server transport.
s, cc := setUp(1, e)
tc := testpb.NewTestServiceClient(cc)
defer tearDown(s, cc)
var err error
for {
time.Sleep(2 * time.Millisecond)
_, err = tc.StreamingInputCall(context.Background())
// Loop until the settings of max concurrent streams is
// received by the client.
if err != nil {
break
}
}
if grpc.Code(err) != codes.Unavailable {
t.Fatalf("got %v, want error code %d", err, codes.Unavailable)
}
}
// TODO(zhaoq): Have a better test coverage of timeout and cancellation mechanism.
func testRPCTimeout(t *testing.T, e env) {
s, cc := setUp(math.MaxUint32, e)
tc := testpb.NewTestServiceClient(cc)
defer tearDown(s, cc)
argSize := 2718
respSize := 314
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(respSize)),
Payload: newPayload(testpb.PayloadType_COMPRESSABLE, int32(argSize)),
}
// Performs 100 RPCs with various timeout values so that
// the RPCs could timeout on different stages of their lifetime. This
// is the best-effort to cover various cases when an rpc gets cancelled.
for i := 1; i <= 100; i++ {
ctx, _ := context.WithTimeout(context.Background(), time.Duration(i)*time.Microsecond)
reply, err := tc.UnaryCall(ctx, req)
if grpc.Code(err) != codes.DeadlineExceeded {
t.Fatalf(`TestService/UnaryCallv(_, _) = %v, %v; want <nil>, error code: %d`, reply, err, codes.DeadlineExceeded)
}
}
}