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.
5 #include "media/filters/memory_data_source.h"
10 #include "base/macros.h"
11 #include "base/rand_util.h"
12 #include "testing/gmock/include/gmock/gmock.h"
13 #include "testing/gtest/include/gtest/gtest.h"
17 class MemoryDataSourceTest : public ::testing::Test {
19 MemoryDataSourceTest() = default;
22 void Initialize(size_t size) {
23 data_.assign(size, 0);
24 base::RandBytes(data_.data(), size);
26 std::make_unique<MemoryDataSource>(data_.data(), size);
27 EXPECT_EQ(size, GetSize());
30 // Reads |size| bytes starting from |position|, expects |expected_read_size|
31 // bytes to be read and checks the read data. Expects error when
32 // |expected_read_size| is DataSource::kReadError.
33 void ReadAndExpect(int64_t position, int size, int expected_read_size) {
34 std::vector<uint8_t> data(size < 0 ? 0 : size, 0);
36 EXPECT_CALL(*this, ReadCB(expected_read_size));
37 memory_data_source_->Read(
38 position, size, data.data(),
39 base::BindOnce(&MemoryDataSourceTest::ReadCB, base::Unretained(this)));
41 if (expected_read_size != DataSource::kReadError) {
43 0, memcmp(data_.data() + position, data.data(), expected_read_size));
49 EXPECT_TRUE(memory_data_source_->GetSize(&size));
54 void Stop() { memory_data_source_->Stop(); }
56 MOCK_METHOD1(ReadCB, void(int size));
59 std::vector<uint8_t> data_;
60 std::unique_ptr<MemoryDataSource> memory_data_source_;
62 DISALLOW_COPY_AND_ASSIGN(MemoryDataSourceTest);
65 TEST_F(MemoryDataSourceTest, EmptySource) {
67 ReadAndExpect(0, 0, 0);
70 TEST_F(MemoryDataSourceTest, ReadData) {
72 ReadAndExpect(0, 0, 0);
73 ReadAndExpect(0, 128, 128);
74 ReadAndExpect(12, 64, 64);
75 ReadAndExpect(128, 0, 0);
78 TEST_F(MemoryDataSourceTest, ReadData_InvalidPosition) {
80 ReadAndExpect(-7, 64, DataSource::kReadError);
81 ReadAndExpect(129, 64, DataSource::kReadError);
84 TEST_F(MemoryDataSourceTest, ReadData_InvalidSize) {
86 ReadAndExpect(0, -12, DataSource::kReadError);
89 TEST_F(MemoryDataSourceTest, ReadData_PartialRead) {
91 ReadAndExpect(0, 129, 128);
92 ReadAndExpect(96, 100, 32);
95 // All ReadData() will fail after Stop().
96 TEST_F(MemoryDataSourceTest, Stop) {
98 ReadAndExpect(12, 64, 64);
100 ReadAndExpect(12, 64, DataSource::kReadError);
103 // ReadData() doesn't affect GetSize().
104 TEST_F(MemoryDataSourceTest, GetSize) {
106 ReadAndExpect(12, 64, 64);
107 EXPECT_EQ(128u, GetSize());
108 ReadAndExpect(-7, 64, DataSource::kReadError);
109 EXPECT_EQ(128u, GetSize());