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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // This file tests the C++ wrappers in mojo/public/cpp/system/buffer.h. | |
6 | |
7 #include "mojo/public/cpp/system/buffer.h" | |
8 | |
9 #include "gtest/gtest.h" | |
10 | |
11 namespace mojo { | |
12 namespace { | |
13 | |
14 TEST(BufferTest, BasicSharedBuffer) { | |
15 // Cursory compilation test of |MakeScopedHandle()| with shared buffer | |
16 // handles. | |
17 EXPECT_FALSE(MakeScopedHandle(SharedBufferHandle()).is_valid()); | |
18 | |
19 ScopedSharedBufferHandle shared_buffer; | |
20 EXPECT_EQ(MOJO_RESULT_OK, CreateSharedBuffer(nullptr, 100u, &shared_buffer)); | |
21 EXPECT_TRUE(shared_buffer.is_valid()); | |
22 | |
23 void* pointer = nullptr; | |
24 EXPECT_EQ(MOJO_RESULT_OK, MapBuffer(shared_buffer.get(), 0, 100u, &pointer, | |
25 MOJO_MAP_BUFFER_FLAG_NONE)); | |
26 EXPECT_NE(pointer, nullptr); | |
27 | |
28 // Just try writing to it. | |
29 *static_cast<char*>(pointer) = 'x'; | |
30 | |
31 shared_buffer.reset(); | |
32 | |
33 // Can still write to it even after the handle is closed. | |
34 *static_cast<char*>(pointer) = 'y'; | |
35 | |
36 EXPECT_EQ(MOJO_RESULT_OK, UnmapBuffer(pointer)); | |
37 } | |
38 | |
39 } // namespace | |
40 } // namespace mojo | |
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