1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
//
//
// Copyright 2017 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
//
#include <memory>
#include "gtest/gtest.h"
#include <grpc/grpc.h>
#include <grpc/status.h>
#include "src/core/lib/gprpp/time.h"
#include "test/core/end2end/end2end_tests.h"
namespace grpc_core {
namespace {
CORE_END2END_TEST(WriteBufferingTest, WriteBufferingAtEnd) {
auto c = NewClientCall("/foo").Timeout(Duration::Minutes(1)).Create();
c.NewBatch(1).SendInitialMetadata({});
CoreEnd2endTest::IncomingMetadata server_initial_metadata;
c.NewBatch(2).RecvInitialMetadata(server_initial_metadata);
auto s = RequestCall(101);
Expect(1, true); // send message is buffered
Expect(101, true);
Step();
c.NewBatch(3).SendMessage("hello world", GRPC_WRITE_BUFFER_HINT);
s.NewBatch(102).SendInitialMetadata({});
// recv message should not succeed yet - it's buffered at the client still
CoreEnd2endTest::IncomingMessage request_payload_recv1;
s.NewBatch(103).RecvMessage(request_payload_recv1);
Expect(2, true);
Expect(3, true);
Expect(102, true);
Step();
// send end of stream: should release the buffering
c.NewBatch(4).SendCloseFromClient();
// now the first send should match up with the first recv
Expect(103, true);
Expect(4, true);
Step();
// and the next recv should be ready immediately also (and empty)
CoreEnd2endTest::IncomingMessage request_payload_recv2;
s.NewBatch(104).RecvMessage(request_payload_recv2);
Expect(104, true);
Step();
CoreEnd2endTest::IncomingStatusOnClient server_status;
c.NewBatch(4).RecvStatusOnClient(server_status);
CoreEnd2endTest::IncomingCloseOnServer client_close;
s.NewBatch(105)
.RecvCloseOnServer(client_close)
.SendStatusFromServer(GRPC_STATUS_OK, "xyz", {});
Expect(105, true);
Expect(4, true);
Step();
EXPECT_EQ(server_status.status(), GRPC_STATUS_OK);
EXPECT_EQ(server_status.message(), "xyz");
EXPECT_EQ(s.method(), "/foo");
EXPECT_FALSE(client_close.was_cancelled());
EXPECT_EQ(request_payload_recv1.payload(), "hello world");
EXPECT_TRUE(request_payload_recv2.is_end_of_stream());
}
} // namespace
} // namespace grpc_core
|
