Revert of Initial version of new file wrapper

webrtc/base/file_unittest.cc

-/*
- *  Copyright 2016 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include <limits>
-#include <memory>
-#include <string>
-
-#include "webrtc/base/gunit.h"
-#include "webrtc/base/file.h"
-#include "webrtc/test/testsupport/fileutils.h"
-
-#if defined(WEBRTC_WIN)
-
-#include "webrtc/base/win32.h"
-
-#else  // if defined(WEBRTC_WIN)
-
-#include <errno.h>
-
-#endif
-
-namespace rtc {
-
-void RemoveFile(const std::string& path) {
-#if defined(WEBRTC_WIN)
-  ::DeleteFile(ToUtf16(path).c_str());
-#else
-  ::unlink(path.c_str());
-#endif
-}
-
-int LastError() {
-#if defined(WEBRTC_WIN)
-  return ::GetLastError();
-#else
-  return errno;
-#endif
-}
-
-bool VerifyBuffer(uint8_t* buffer, size_t length, uint8_t start_value) {
-  for (size_t i = 0; i < length; ++i) {
-    uint8_t val = start_value++;
-    EXPECT_EQ(val, buffer[i]);
-    if (buffer[i] != val)
-      return false;
-  }
-  // Prevent the same buffer from being verified multiple times simply
-  // because some operation that should have written to it failed
-  memset(buffer, 0, length);
-  return true;
-}
-
-class FileTest : public ::testing::Test {
- protected:
-  std::string path_;
-  void SetUp() {
-    path_ = webrtc::test::TempFilename(webrtc::test::OutputPath(), "test_file");
-    ASSERT_FALSE(path_.empty());
-  }
-  rtc::File OpenTempFile() { return rtc::File::Open(path_); }
-  void TearDown() { RemoveFile(path_); }
-};
-
-TEST_F(FileTest, DoubleClose) {
-  File file = OpenTempFile();
-  ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError();
-
-  EXPECT_TRUE(file.Close());
-  EXPECT_FALSE(file.Close());
-}
-
-TEST_F(FileTest, SimpleReadWrite) {
-  File file = OpenTempFile();
-  ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError();
-
-  uint8_t data[100] = {0};
-  uint8_t out[100] = {0};
-  for (int i = 0; i < 100; ++i) {
-    data[i] = i;
-  }
-
-  EXPECT_EQ(10u, file.Write(data, 10));
-
-  EXPECT_TRUE(file.Seek(0));
-  EXPECT_EQ(10u, file.Read(out, 10));
-  EXPECT_TRUE(VerifyBuffer(out, 10, 0));
-
-  EXPECT_TRUE(file.Seek(0));
-  EXPECT_EQ(100u, file.Write(data, 100));
-
-  EXPECT_TRUE(file.Seek(0));
-  EXPECT_EQ(100u, file.Read(out, 100));
-  EXPECT_TRUE(VerifyBuffer(out, 100, 0));
-
-  EXPECT_TRUE(file.Seek(1));
-  EXPECT_EQ(50u, file.Write(data, 50));
-  EXPECT_EQ(50u, file.Write(data + 50, 50));
-
-  EXPECT_TRUE(file.Seek(1));
-  EXPECT_EQ(100u, file.Read(out, 100));
-  EXPECT_TRUE(VerifyBuffer(out, 100, 0));
-}
-
-TEST_F(FileTest, ReadWriteClose) {
-  File file = OpenTempFile();
-  ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError();
-
-  uint8_t data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
-  uint8_t out[10] = {0};
-  EXPECT_EQ(10u, file.Write(data, 10));
-  EXPECT_TRUE(file.Close());
-
-  File file2 = OpenTempFile();
-  ASSERT_TRUE(file2.IsOpen()) << "Error: " << LastError();
-  EXPECT_EQ(10u, file2.Read(out, 10));
-  EXPECT_TRUE(VerifyBuffer(out, 10, 0));
-}
-
-TEST_F(FileTest, RandomAccessRead) {
-  File file = OpenTempFile();
-  ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError();
-
-  uint8_t data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
-  uint8_t out[10] = {0};
-  EXPECT_EQ(10u, file.Write(data, 10));
-
-  EXPECT_EQ(4u, file.ReadAt(out, 4, 0));
-  EXPECT_TRUE(VerifyBuffer(out, 4, 0));
-
-  EXPECT_EQ(4u, file.ReadAt(out, 4, 4));
-  EXPECT_TRUE(VerifyBuffer(out, 4, 4));
-
-  EXPECT_EQ(5u, file.ReadAt(out, 5, 5));
-  EXPECT_TRUE(VerifyBuffer(out, 5, 5));
-}
-
-TEST_F(FileTest, RandomAccessReadWrite) {
-  File file = OpenTempFile();
-  ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError();
-
-  uint8_t data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
-  uint8_t out[10] = {0};
-  EXPECT_EQ(10u, file.Write(data, 10));
-  EXPECT_TRUE(file.Seek(4));
-
-  EXPECT_EQ(4u, file.WriteAt(data, 4, 4));
-  EXPECT_EQ(4u, file.ReadAt(out, 4, 4));
-  EXPECT_TRUE(VerifyBuffer(out, 4, 0));
-
-  EXPECT_EQ(2u, file.WriteAt(data, 2, 8));
-  EXPECT_EQ(2u, file.ReadAt(out, 2, 8));
-  EXPECT_TRUE(VerifyBuffer(out, 2, 0));
-}
-
-}  // namespace rtc