fix tests

test/end2end_test.go

@@ -797,11 +797,11 @@ func testExceedMaxStreamsLimit(t *testing.T, e env) {
 	defer tearDown(s, cc)
 	// Perform an unary RPC to make sure the new settings were propagated to the client.
 	if _, err := tc.EmptyCall(context.Background(), &testpb.Empty{}); err != nil {
-		t.Fatalf("fhaof")
+		t.Fatalf("%v.EmptyCall(_, _) = _, %v, want _, <nil>", tc, err)
 	}
 	// Initiate the 1st stream
 	if _, err := tc.StreamingInputCall(context.Background()); err != nil {
-		t.Fatalf("faf")
+		t.Fatalf("%v.StreamingInputCall(_) = %v, want <nil>", tc, err)
 	}
 	var wg sync.WaitGroup
 	wg.Add(1)
@@ -809,7 +809,7 @@ func testExceedMaxStreamsLimit(t *testing.T, e env) {
 		// The 2nd stream should block until its deadline exceeds.
 		ctx, _ := context.WithTimeout(context.Background(), time.Second)
 		if _, err := tc.StreamingInputCall(ctx); grpc.Code(err) != codes.DeadlineExceeded {
-			t.Fatalf("1414")
+			t.Fatalf("%v.StreamingInputCall(%v) = _, %v, want error code %d", tc, ctx, err, codes.DeadlineExceeded)
 		}
 		wg.Done()
 	}()

transport/http2_client.go

@@ -572,8 +572,8 @@ func (t *http2Client) handleSettings(f *http2.SettingsFrame) {
 			switch s.ID {
 			case http2.SettingMaxConcurrentStreams:
 				// TODO(zhaoq): This is a hack to avoid significant refactoring of the
-				// code to deal with int32 overflow. Have a better way to handle this
+				// code to deal with the unrealistic int32 overflow. Probably will try
-				// later.
+				// to find a better way to handle this later.
 				if v > math.MaxInt32 {
 					v = math.MaxInt32
 				}

transport/transport_test.go

@@ -299,54 +299,6 @@ func TestClientMix(t *testing.T) {
 	}
 }
 
-func TestExceedMaxStreamsLimit(t *testing.T) {
-	server, ct := setUp(t, 0, 1, normal)
-	defer func() {
-		ct.Close()
-		server.stop()
-	}()
-	callHdr := &CallHdr{
-		Host:   "localhost",
-		Method: "foo.Small",
-	}
-	// Creates the 1st stream and keep it alive.
-	_, err1 := ct.NewStream(context.Background(), callHdr)
-	if err1 != nil {
-		t.Fatalf("failed to open stream: %v", err1)
-	}
-	// Creates the 2nd stream. It has chance to succeed when the settings
-	// frame from the server has not received at the client.
-	s, err2 := ct.NewStream(context.Background(), callHdr)
-	if err2 != nil {
-		se, ok := err2.(StreamError)
-		if !ok {
-			t.Fatalf("Received unexpected error %v", err2)
-		}
-		if se.Code != codes.Unavailable {
-			t.Fatalf("Got error code: %d, want: %d", se.Code, codes.Unavailable)
-		}
-		return
-	}
-	// If the 2nd stream is created successfully, sends the request.
-	if err := ct.Write(s, expectedRequest, &Options{Last: true, Delay: false}); err != nil {
-		t.Fatalf("failed to send data: %v", err)
-	}
-	// The 2nd stream was rejected by the server via a reset.
-	p := make([]byte, len(expectedResponse))
-	_, recvErr := io.ReadFull(s, p)
-	if recvErr != io.EOF || s.StatusCode() != codes.Unavailable {
-		t.Fatalf("Error: %v, StatusCode: %d; want <EOF>, %d", recvErr, s.StatusCode(), codes.Unavailable)
-	}
-	// Server's setting has been received. From now on, new stream will be rejected instantly.
-	_, err3 := ct.NewStream(context.Background(), callHdr)
-	if err3 == nil {
-		t.Fatalf("Received unexpected <nil>, want an error with code %d", codes.Unavailable)
-	}
-	if se, ok := err3.(StreamError); !ok || se.Code != codes.Unavailable {
-		t.Fatalf("Got: %v, want a StreamError with error code %d", err3, codes.Unavailable)
-	}
-}
-
 func TestLargeMessage(t *testing.T) {
 	server, ct := setUp(t, 0, math.MaxUint32, normal)
 	callHdr := &CallHdr{