Reland of Add optional visualization file writers to VideoProcessor tests.

webrtc/test/testsupport/frame_reader_unittest.cc

-/*
- *  Copyright (c) 2011 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 "webrtc/test/testsupport/frame_reader.h"
-
-#include "webrtc/api/video/i420_buffer.h"
-#include "webrtc/test/gtest.h"
-#include "webrtc/test/testsupport/fileutils.h"
-
-namespace webrtc {
-namespace test {
-
-const std::string kInputFileContents = "baz";
-const size_t kFrameLength = 3;
-
-class FrameReaderTest: public testing::Test {
- protected:
-  FrameReaderTest() {}
-  virtual ~FrameReaderTest() {}
-  void SetUp() {
-    // Create a dummy input file.
-    temp_filename_ = webrtc::test::TempFilename(webrtc::test::OutputPath(),
-                                                "frame_reader_unittest");
-    FILE* dummy = fopen(temp_filename_.c_str(), "wb");
-    fprintf(dummy, "%s", kInputFileContents.c_str());
-    fclose(dummy);
-
-    frame_reader_ = new FrameReaderImpl(temp_filename_, 1, 1);
-    ASSERT_TRUE(frame_reader_->Init());
-  }
-  void TearDown() {
-    delete frame_reader_;
-    // Cleanup the dummy input file.
-    remove(temp_filename_.c_str());
-  }
-  FrameReader* frame_reader_;
-  std::string temp_filename_;
-};
-
-TEST_F(FrameReaderTest, InitSuccess) {
-  FrameReaderImpl frame_reader(temp_filename_, 1, 1);
-  ASSERT_TRUE(frame_reader.Init());
-  ASSERT_EQ(kFrameLength, frame_reader.FrameLength());
-  ASSERT_EQ(1, frame_reader.NumberOfFrames());
-}
-
-TEST_F(FrameReaderTest, ReadFrame) {
-  rtc::scoped_refptr<VideoFrameBuffer> buffer;
-  buffer = frame_reader_->ReadFrame();
-  ASSERT_TRUE(buffer);
-  ASSERT_EQ(kInputFileContents[0], buffer->DataY()[0]);
-  ASSERT_EQ(kInputFileContents[1], buffer->DataU()[0]);
-  ASSERT_EQ(kInputFileContents[2], buffer->DataV()[0]);
-  ASSERT_FALSE(frame_reader_->ReadFrame());  // End of file
-}
-
-TEST_F(FrameReaderTest, ReadFrameUninitialized) {
-  FrameReaderImpl file_reader(temp_filename_, 1, 1);
-  ASSERT_FALSE(file_reader.ReadFrame());
-}
-
-}  // namespace test
-}  // namespace webrtc