chromium/storage/browser/file_system/local_file_stream_writer_unittest.cc

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "storage/browser/file_system/local_file_stream_writer.h"

#include <stdint.h>

#include <memory>
#include <string>

#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "storage/browser/file_system/file_stream_writer.h"
#include "storage/browser/file_system/file_stream_writer_test.h"

#if BUILDFLAG(IS_ANDROID)
#include "base/test/android/content_uri_test_utils.h"
#endif

namespace storage {

class LocalFileStreamWriterTest : public FileStreamWriterTest { … };

INSTANTIATE_TYPED_TEST_SUITE_P(…);

#if BUILDFLAG(IS_ANDROID)
class ContentUriLocalFileStreamWriterTest : public LocalFileStreamWriterTest {};

TEST_F(ContentUriLocalFileStreamWriterTest, WriteAlwaysTruncates) {
  EXPECT_TRUE(
      this->CreateFileWithContent(std::string(this->kTestFileName), "foobar"));

  base::FilePath content_uri;
  ASSERT_TRUE(base::test::android::GetContentUriFromCacheDirFilePath(
      Path(std::string(this->kTestFileName)), &content_uri));

  auto writer = FileStreamWriter::CreateForLocalFile(
      file_task_runner(), content_uri, 0, FileStreamWriter::OPEN_EXISTING_FILE);

  EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "foo"));

  EXPECT_TRUE(this->FilePathExists(std::string(this->kTestFileName)));
  EXPECT_EQ("foo", this->GetFileContent(std::string(this->kTestFileName)));
}
#endif

}  // namespace storage