1 //
2 //
3 // Copyright 2015 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include <grpc/status.h>
20
21 #include <memory>
22
23 #include "absl/log/log.h"
24 #include "gtest/gtest.h"
25 #include "src/core/lib/channel/channel_args.h"
26 #include "src/core/util/time.h"
27 #include "test/core/end2end/end2end_tests.h"
28
29 namespace grpc_core {
30
OneRequestAndShutdownServer(CoreEnd2endTest & test)31 static void OneRequestAndShutdownServer(CoreEnd2endTest& test) {
32 LOG(ERROR) << "Create client side call";
33 auto c = test.NewClientCall("/service/method")
34 .Timeout(Duration::Seconds(30))
35 .Create();
36 IncomingMetadata server_initial_md;
37 IncomingStatusOnClient server_status;
38 LOG(ERROR) << "Start initial batch";
39 c.NewBatch(1)
40 .SendInitialMetadata({})
41 .SendCloseFromClient()
42 .RecvInitialMetadata(server_initial_md)
43 .RecvStatusOnClient(server_status);
44 auto s = test.RequestCall(101);
45 test.Expect(101, true);
46 test.Step();
47 test.ShutdownServerAndNotify(1000);
48 IncomingCloseOnServer client_closed;
49 s.NewBatch(102)
50 .SendInitialMetadata({})
51 .SendStatusFromServer(GRPC_STATUS_UNIMPLEMENTED, "xyz", {})
52 .RecvCloseOnServer(client_closed);
53 test.Expect(102, true);
54 test.Expect(1, true);
55 test.Expect(1000, true);
56 test.Step();
57 // Please refer https://github.com/grpc/grpc/issues/21221 for additional
58 // details.
59 // TODO(yashykt@) - The following line should be removable after C-Core
60 // correctly handles GOAWAY frames. Internal Reference b/135458602. If this
61 // test remains flaky even after this, an alternative fix would be to send a
62 // request when the server is in the shut down state.
63 test.Step();
64
65 EXPECT_EQ(server_status.status(), GRPC_STATUS_UNIMPLEMENTED);
66 EXPECT_EQ(server_status.message(), "xyz");
67 EXPECT_EQ(s.method(), "/service/method");
68 EXPECT_FALSE(client_closed.was_cancelled());
69 }
70
CORE_END2END_TEST(CoreClientChannelTest,DisappearingServer)71 CORE_END2END_TEST(CoreClientChannelTest, DisappearingServer) {
72 SKIP_IF_V3();
73 OneRequestAndShutdownServer(*this);
74 InitServer(ChannelArgs());
75 OneRequestAndShutdownServer(*this);
76 }
77
78 } // namespace grpc_core
79