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Side by Side Diff: mojo/public/cpp/system/tests/buffer_unittest.cc

Issue 2250183003: Make the fuchsia mojo/public repo the source of truth. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 4 months ago
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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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