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);
25 memory_data_source_.reset(new MemoryDataSource(data_.data(), size));
26 EXPECT_EQ(size, GetSize());
29 // Reads |size| bytes starting from |position|, expects |expected_read_size|
30 // bytes to be read and checks the read data. Expects error when
31 // |expected_read_size| is DataSource::kReadError.
32 void ReadAndExpect(int64_t position, int size, int expected_read_size) {
33 std::vector<uint8_t> data(size < 0 ? 0 : size, 0);
35 EXPECT_CALL(*this, ReadCB(expected_read_size));
36 memory_data_source_->Read(
37 position, size, data.data(),
38 base::Bind(&MemoryDataSourceTest::ReadCB, base::Unretained(this)));
40 if (expected_read_size != DataSource::kReadError) {
42 0, memcmp(data_.data() + position, data.data(), expected_read_size));
48 EXPECT_TRUE(memory_data_source_->GetSize(&size));
53 void Stop() { memory_data_source_->Stop(); }
55 MOCK_METHOD1(ReadCB, void(int size));
58 std::vector<uint8_t> data_;
59 std::unique_ptr<MemoryDataSource> memory_data_source_;
61 DISALLOW_COPY_AND_ASSIGN(MemoryDataSourceTest);
64 TEST_F(MemoryDataSourceTest, EmptySource) {
66 ReadAndExpect(0, 0, 0);
69 TEST_F(MemoryDataSourceTest, ReadData) {
71 ReadAndExpect(0, 0, 0);
72 ReadAndExpect(0, 128, 128);
73 ReadAndExpect(12, 64, 64);
74 ReadAndExpect(128, 0, 0);
77 TEST_F(MemoryDataSourceTest, ReadData_InvalidPosition) {
79 ReadAndExpect(-7, 64, DataSource::kReadError);
80 ReadAndExpect(129, 64, DataSource::kReadError);
83 TEST_F(MemoryDataSourceTest, ReadData_InvalidSize) {
85 ReadAndExpect(0, -12, DataSource::kReadError);
88 TEST_F(MemoryDataSourceTest, ReadData_PartialRead) {
90 ReadAndExpect(0, 129, 128);
91 ReadAndExpect(96, 100, 32);
94 // All ReadData() will fail after Stop().
95 TEST_F(MemoryDataSourceTest, Stop) {
97 ReadAndExpect(12, 64, 64);
99 ReadAndExpect(12, 64, DataSource::kReadError);
102 // ReadData() doesn't affect GetSize().
103 TEST_F(MemoryDataSourceTest, GetSize) {
105 ReadAndExpect(12, 64, 64);
106 EXPECT_EQ(128u, GetSize());
107 ReadAndExpect(-7, 64, DataSource::kReadError);
108 EXPECT_EQ(128u, GetSize());