115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
// Copyright (c) 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "packager/file/memory_file.h"
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#include <gtest/gtest.h>
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#include <memory>
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#include "packager/file/file.h"
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#include "packager/file/file_closer.h"
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namespace shaka {
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namespace {
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const uint8_t kWriteBuffer[] = {1, 2, 3, 4, 5, 6, 7, 8};
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const int64_t kWriteBufferSize = sizeof(kWriteBuffer);
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} // namespace
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class MemoryFileTest : public testing::Test {
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protected:
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void TearDown() override { MemoryFile::DeleteAll(); }
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};
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TEST_F(MemoryFileTest, ModifiesSameFile) {
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std::unique_ptr<File, FileCloser> writer(File::Open("memory://file1", "w"));
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ASSERT_TRUE(writer);
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ASSERT_EQ(kWriteBufferSize, writer->Write(kWriteBuffer, kWriteBufferSize));
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writer.release()->Close();
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// Since File::Open should not create a ThreadedIoFile so there should be
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// no cache.
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std::unique_ptr<File, FileCloser> reader(File::Open("memory://file1", "r"));
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ASSERT_TRUE(reader);
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uint8_t read_buffer[kWriteBufferSize];
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ASSERT_EQ(kWriteBufferSize, reader->Read(read_buffer, kWriteBufferSize));
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EXPECT_EQ(0, memcmp(kWriteBuffer, read_buffer, kWriteBufferSize));
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}
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TEST_F(MemoryFileTest, SupportsDifferentFiles) {
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std::unique_ptr<File, FileCloser> writer(File::Open("memory://file1", "w"));
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std::unique_ptr<File, FileCloser> reader(File::Open("memory://file2", "w"));
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ASSERT_TRUE(writer);
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ASSERT_TRUE(reader);
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ASSERT_EQ(kWriteBufferSize, writer->Write(kWriteBuffer, kWriteBufferSize));
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ASSERT_EQ(0, reader->Size());
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}
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TEST_F(MemoryFileTest, SeekAndTell) {
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std::unique_ptr<File, FileCloser> file(File::Open("memory://file1", "w"));
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ASSERT_TRUE(file);
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ASSERT_EQ(kWriteBufferSize, file->Write(kWriteBuffer, kWriteBufferSize));
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ASSERT_TRUE(file->Seek(0));
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const int64_t seek_pos = kWriteBufferSize / 2;
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ASSERT_TRUE(file->Seek(seek_pos));
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uint64_t size;
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ASSERT_TRUE(file->Tell(&size));
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EXPECT_EQ(seek_pos, static_cast<int64_t>(size));
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}
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TEST_F(MemoryFileTest, EndOfFile) {
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std::unique_ptr<File, FileCloser> file(File::Open("memory://file1", "w"));
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ASSERT_TRUE(file);
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ASSERT_EQ(kWriteBufferSize, file->Write(kWriteBuffer, kWriteBufferSize));
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ASSERT_TRUE(file->Seek(0));
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uint8_t read_buffer[kWriteBufferSize];
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const int64_t seek_pos = kWriteBufferSize / 2;
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const int64_t read_size = kWriteBufferSize - seek_pos;
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ASSERT_TRUE(file->Seek(seek_pos));
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EXPECT_EQ(read_size, file->Read(read_buffer, kWriteBufferSize));
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EXPECT_EQ(0, memcmp(read_buffer, kWriteBuffer + seek_pos, read_size));
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EXPECT_EQ(0, file->Read(read_buffer, kWriteBufferSize));
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}
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TEST_F(MemoryFileTest, ExtendsSize) {
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std::unique_ptr<File, FileCloser> file(File::Open("memory://file1", "w"));
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ASSERT_TRUE(file);
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ASSERT_EQ(kWriteBufferSize, file->Write(kWriteBuffer, kWriteBufferSize));
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ASSERT_EQ(kWriteBufferSize, file->Size());
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ASSERT_EQ(kWriteBufferSize, file->Write(kWriteBuffer, kWriteBufferSize));
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EXPECT_EQ(2 * kWriteBufferSize, file->Size());
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uint64_t size;
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ASSERT_TRUE(file->Tell(&size));
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EXPECT_EQ(2 * kWriteBufferSize, static_cast<int64_t>(size));
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}
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TEST_F(MemoryFileTest, ReadMissingFileFails) {
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std::unique_ptr<File, FileCloser> file(File::Open("memory://file1", "r"));
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EXPECT_FALSE(file);
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}
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TEST_F(MemoryFileTest, WriteExistingFileDeletes) {
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std::unique_ptr<File, FileCloser> file1(File::Open("memory://file1", "w"));
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ASSERT_TRUE(file1);
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ASSERT_EQ(kWriteBufferSize, file1->Write(kWriteBuffer, kWriteBufferSize));
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file1.release()->Close();
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std::unique_ptr<File, FileCloser> file2(File::Open("memory://file1", "w"));
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ASSERT_TRUE(file2);
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EXPECT_EQ(0, file2->Size());
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}
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} // namespace shaka
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