Populate storage_unittests target.

content/browser/fileapi/local_file_stream_writer_unittest.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "storage/browser/fileapi/local_file_stream_writer.h"
-
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-
-#include "base/callback.h"
-#include "base/files/file_util.h"
-#include "base/files/scoped_temp_dir.h"
-#include "base/logging.h"
-#include "base/run_loop.h"
-#include "base/single_thread_task_runner.h"
-#include "base/threading/thread.h"
-#include "net/base/io_buffer.h"
-#include "net/base/test_completion_callback.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using storage::FileStreamWriter;
-using storage::LocalFileStreamWriter;
-
-namespace content {
-
-class LocalFileStreamWriterTest : public testing::Test {
- public:
-  LocalFileStreamWriterTest()
-      : file_thread_("FileUtilProxyTestFileThread") {}
-
-  void SetUp() override {
-    ASSERT_TRUE(file_thread_.Start());
-    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
-  }
-
-  void TearDown() override {
-    // Give another chance for deleted streams to perform Close.
-    base::RunLoop().RunUntilIdle();
-    file_thread_.Stop();
-    base::RunLoop().RunUntilIdle();
-  }
-
- protected:
-  base::FilePath Path(const std::string& name) {
-    return temp_dir_.GetPath().AppendASCII(name);
-  }
-
-  int WriteStringToWriter(LocalFileStreamWriter* writer,
-                          const std::string& data) {
-    scoped_refptr<net::StringIOBuffer> buffer(new net::StringIOBuffer(data));
-    scoped_refptr<net::DrainableIOBuffer> drainable(
-        new net::DrainableIOBuffer(buffer.get(), buffer->size()));
-
-    while (drainable->BytesRemaining() > 0) {
-      net::TestCompletionCallback callback;
-      int result = writer->Write(
-          drainable.get(), drainable->BytesRemaining(), callback.callback());
-      if (result == net::ERR_IO_PENDING)
-        result = callback.WaitForResult();
-      if (result <= 0)
-        return result;
-      drainable->DidConsume(result);
-    }
-    return net::OK;
-  }
-
-  std::string GetFileContent(const base::FilePath& path) {
-    std::string content;
-    base::ReadFileToString(path, &content);
-    return content;
-  }
-
-  base::FilePath CreateFileWithContent(const std::string& name,
-                                 const std::string& data) {
-    base::FilePath path = Path(name);
-    base::WriteFile(path, data.c_str(), data.size());
-    return path;
-  }
-
-  base::SingleThreadTaskRunner* file_task_runner() const {
-    return file_thread_.task_runner().get();
-  }
-
-  LocalFileStreamWriter* CreateWriter(const base::FilePath& path,
-                                      int64_t offset) {
-    return new LocalFileStreamWriter(file_task_runner(), path, offset,
-        FileStreamWriter::OPEN_EXISTING_FILE);
-  }
-
- private:
-  base::MessageLoopForIO message_loop_;
-  base::Thread file_thread_;
-  base::ScopedTempDir temp_dir_;
-};
-
-void NeverCalled(int unused) {
-  ADD_FAILURE();
-}
-
-TEST_F(LocalFileStreamWriterTest, Write) {
-  base::FilePath path = CreateFileWithContent("file_a", std::string());
-  std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
-  EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "foo"));
-  EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "bar"));
-  writer.reset();
-  base::RunLoop().RunUntilIdle();
-  EXPECT_TRUE(base::PathExists(path));
-  EXPECT_EQ("foobar", GetFileContent(path));
-}
-
-TEST_F(LocalFileStreamWriterTest, WriteMiddle) {
-  base::FilePath path = CreateFileWithContent("file_a", "foobar");
-  std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 2));
-  EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "xxx"));
-  writer.reset();
-  base::RunLoop().RunUntilIdle();
-  EXPECT_TRUE(base::PathExists(path));
-  EXPECT_EQ("foxxxr", GetFileContent(path));
-}
-
-TEST_F(LocalFileStreamWriterTest, WriteEnd) {
-  base::FilePath path = CreateFileWithContent("file_a", "foobar");
-  std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 6));
-  EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "xxx"));
-  writer.reset();
-  base::RunLoop().RunUntilIdle();
-  EXPECT_TRUE(base::PathExists(path));
-  EXPECT_EQ("foobarxxx", GetFileContent(path));
-}
-
-TEST_F(LocalFileStreamWriterTest, WriteFailForNonexistingFile) {
-  base::FilePath path = Path("file_a");
-  ASSERT_FALSE(base::PathExists(path));
-  std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
-  EXPECT_EQ(net::ERR_FILE_NOT_FOUND, WriteStringToWriter(writer.get(), "foo"));
-  writer.reset();
-  base::RunLoop().RunUntilIdle();
-  EXPECT_FALSE(base::PathExists(path));
-}
-
-TEST_F(LocalFileStreamWriterTest, CancelBeforeOperation) {
-  base::FilePath path = Path("file_a");
-  std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
-  // Cancel immediately fails when there's no in-flight operation.
-  int cancel_result = writer->Cancel(base::Bind(&NeverCalled));
-  EXPECT_EQ(net::ERR_UNEXPECTED, cancel_result);
-}
-
-TEST_F(LocalFileStreamWriterTest, CancelAfterFinishedOperation) {
-  base::FilePath path = CreateFileWithContent("file_a", std::string());
-  std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
-  EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "foo"));
-
-  // Cancel immediately fails when there's no in-flight operation.
-  int cancel_result = writer->Cancel(base::Bind(&NeverCalled));
-  EXPECT_EQ(net::ERR_UNEXPECTED, cancel_result);
-
-  writer.reset();
-  base::RunLoop().RunUntilIdle();
-  // Write operation is already completed.
-  EXPECT_TRUE(base::PathExists(path));
-  EXPECT_EQ("foo", GetFileContent(path));
-}
-
-TEST_F(LocalFileStreamWriterTest, CancelWrite) {
-  base::FilePath path = CreateFileWithContent("file_a", "foobar");
-  std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
-
-  scoped_refptr<net::StringIOBuffer> buffer(new net::StringIOBuffer("xxx"));
-  int result =
-      writer->Write(buffer.get(), buffer->size(), base::Bind(&NeverCalled));
-  ASSERT_EQ(net::ERR_IO_PENDING, result);
-
-  net::TestCompletionCallback callback;
-  writer->Cancel(callback.callback());
-  int cancel_result = callback.WaitForResult();
-  EXPECT_EQ(net::OK, cancel_result);
-}
-
-}  // namespace content