1 files changed, 57 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/testsupport/copy_to_file_audio_capturer_unittest.cc b/third_party/libwebrtc/test/testsupport/copy_to_file_audio_capturer_unittest.cc
new file mode 100644
index 0000000000..3831c28580
--- /dev/null
+++ b/third_party/libwebrtc/test/testsupport/copy_to_file_audio_capturer_unittest.cc
@@ -0,0 +1,57 @@
+/*
+ *  Copyright (c) 2019 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 "test/testsupport/copy_to_file_audio_capturer.h"
+
+#include <memory>
+#include <utility>
+
+#include "modules/audio_device/include/test_audio_device.h"
+#include "test/gtest.h"
+#include "test/testsupport/file_utils.h"
+
+namespace webrtc {
+namespace test {
+
+class CopyToFileAudioCapturerTest : public ::testing::Test {
+ protected:
+  void SetUp() override {
+    temp_filename_ = webrtc::test::TempFilename(
+        webrtc::test::OutputPath(), "copy_to_file_audio_capturer_unittest");
+    std::unique_ptr<TestAudioDeviceModule::Capturer> delegate =
+        TestAudioDeviceModule::CreatePulsedNoiseCapturer(32000, 48000);
+    capturer_ = std::make_unique<CopyToFileAudioCapturer>(std::move(delegate),
+                                                          temp_filename_);
+  }
+
+  void TearDown() override { ASSERT_EQ(remove(temp_filename_.c_str()), 0); }
+
+  std::unique_ptr<CopyToFileAudioCapturer> capturer_;
+  std::string temp_filename_;
+};
+
+TEST_F(CopyToFileAudioCapturerTest, Capture) {
+  rtc::BufferT<int16_t> expected_buffer;
+  ASSERT_TRUE(capturer_->Capture(&expected_buffer));
+  ASSERT_TRUE(!expected_buffer.empty());
+  // Destruct capturer to close wav file.
+  capturer_.reset(nullptr);
+
+  // Read resulted file content with `wav_file_capture` and compare with
+  // what was captured.
+  std::unique_ptr<TestAudioDeviceModule::Capturer> wav_file_capturer =
+      TestAudioDeviceModule::CreateWavFileReader(temp_filename_, 48000);
+  rtc::BufferT<int16_t> actual_buffer;
+  wav_file_capturer->Capture(&actual_buffer);
+  ASSERT_EQ(actual_buffer, expected_buffer);
+}
+
+}  // namespace test
+}  // namespace webrtc