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 <memory>
20
21 #include "gtest/gtest.h"
22
23 #include <grpc/status.h>
24 #include <grpc/support/log.h>
25
26 #include "src/core/lib/channel/channel_args.h"
27 #include "src/core/lib/gprpp/time.h"
28 #include "test/core/end2end/end2end_tests.h"
29
30 #ifndef GPR_WINDOWS // b/148110727 for more details
31 namespace grpc_core {
32
OneRequestAndShutdownServer(CoreEnd2endTest & test)33 static void OneRequestAndShutdownServer(CoreEnd2endTest& test) {
34 gpr_log(GPR_ERROR, "Create client side call");
35 auto c = test.NewClientCall("/service/method")
36 .Timeout(Duration::Seconds(30))
37 .Create();
38 CoreEnd2endTest::IncomingMetadata server_initial_md;
39 CoreEnd2endTest::IncomingStatusOnClient server_status;
40 gpr_log(GPR_ERROR, "Start initial batch");
41 c.NewBatch(1)
42 .SendInitialMetadata({})
43 .SendCloseFromClient()
44 .RecvInitialMetadata(server_initial_md)
45 .RecvStatusOnClient(server_status);
46 auto s = test.RequestCall(101);
47 test.Expect(101, true);
48 test.Step();
49 test.ShutdownServerAndNotify(1000);
50 CoreEnd2endTest::IncomingCloseOnServer client_closed;
51 s.NewBatch(102)
52 .SendInitialMetadata({})
53 .SendStatusFromServer(GRPC_STATUS_UNIMPLEMENTED, "xyz", {})
54 .RecvCloseOnServer(client_closed);
55 test.Expect(102, true);
56 test.Expect(1, true);
57 test.Expect(1000, true);
58 test.Step();
59 // Please refer https://github.com/grpc/grpc/issues/21221 for additional
60 // details.
61 // TODO(yashykt@) - The following line should be removeable after C-Core
62 // correctly handles GOAWAY frames. Internal Reference b/135458602. If this
63 // test remains flaky even after this, an alternative fix would be to send a
64 // request when the server is in the shut down state.
65 test.Step();
66
67 EXPECT_EQ(server_status.status(), GRPC_STATUS_UNIMPLEMENTED);
68 EXPECT_EQ(server_status.message(), "xyz");
69 EXPECT_EQ(s.method(), "/service/method");
70 EXPECT_FALSE(client_closed.was_cancelled());
71 }
72
CORE_END2END_TEST(CoreClientChannelTest,DisappearingServer)73 CORE_END2END_TEST(CoreClientChannelTest, DisappearingServer) {
74 SKIP_IF_CHAOTIC_GOOD();
75 OneRequestAndShutdownServer(*this);
76 InitServer(ChannelArgs());
77 OneRequestAndShutdownServer(*this);
78 }
79
80 } // namespace grpc_core
81 #endif // GPR_WINDOWS
82