1 files changed, 100 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/experiments/quality_scaler_settings_unittest.cc b/third_party/libwebrtc/rtc_base/experiments/quality_scaler_settings_unittest.cc
new file mode 100644
index 0000000000..578fe97b03
--- /dev/null
+++ b/third_party/libwebrtc/rtc_base/experiments/quality_scaler_settings_unittest.cc
@@ -0,0 +1,100 @@
+/*
+ *  Copyright 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 "rtc_base/experiments/quality_scaler_settings.h"
+
+#include "test/gtest.h"
+#include "test/scoped_key_value_config.h"
+
+namespace webrtc {
+namespace {
+
+TEST(QualityScalerSettingsTest, ValuesNotSetByDefault) {
+  webrtc::test::ScopedKeyValueConfig field_trials("");
+  const auto settings = QualityScalerSettings(field_trials);
+  EXPECT_FALSE(settings.MinFrames());
+  EXPECT_FALSE(settings.InitialScaleFactor());
+  EXPECT_FALSE(settings.ScaleFactor());
+  EXPECT_FALSE(settings.InitialBitrateIntervalMs());
+  EXPECT_FALSE(settings.InitialBitrateFactor());
+}
+
+TEST(QualityScalerSettingsTest, ParseMinFrames) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/min_frames:100/");
+  EXPECT_EQ(100, QualityScalerSettings(field_trials).MinFrames());
+}
+
+TEST(QualityScalerSettingsTest, ParseInitialScaleFactor) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/initial_scale_factor:1.5/");
+  EXPECT_EQ(1.5, QualityScalerSettings(field_trials).InitialScaleFactor());
+}
+
+TEST(QualityScalerSettingsTest, ParseScaleFactor) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/scale_factor:1.1/");
+  EXPECT_EQ(1.1, QualityScalerSettings(field_trials).ScaleFactor());
+}
+
+TEST(QualityScalerSettingsTest, ParseInitialBitrateInterval) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/initial_bitrate_interval_ms:1000/");
+  EXPECT_EQ(1000,
+            QualityScalerSettings(field_trials).InitialBitrateIntervalMs());
+}
+
+TEST(QualityScalerSettingsTest, ParseInitialBitrateFactor) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/initial_bitrate_factor:0.75/");
+  EXPECT_EQ(0.75, QualityScalerSettings(field_trials).InitialBitrateFactor());
+}
+
+TEST(QualityScalerSettingsTest, ParseAll) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/"
+      "min_frames:100,initial_scale_factor:1.5,scale_factor:0.9,"
+      "initial_bitrate_interval_ms:5500,initial_bitrate_factor:0.7/");
+  const auto settings = QualityScalerSettings(field_trials);
+  EXPECT_EQ(100, settings.MinFrames());
+  EXPECT_EQ(1.5, settings.InitialScaleFactor());
+  EXPECT_EQ(0.9, settings.ScaleFactor());
+  EXPECT_EQ(5500, settings.InitialBitrateIntervalMs());
+  EXPECT_EQ(0.7, settings.InitialBitrateFactor());
+}
+
+TEST(QualityScalerSettingsTest, DoesNotParseIncorrectValue) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/"
+      "min_frames:a,initial_scale_factor:b,scale_factor:c,"
+      "initial_bitrate_interval_ms:d,initial_bitrate_factor:e/");
+  const auto settings = QualityScalerSettings(field_trials);
+  EXPECT_FALSE(settings.MinFrames());
+  EXPECT_FALSE(settings.InitialScaleFactor());
+  EXPECT_FALSE(settings.ScaleFactor());
+  EXPECT_FALSE(settings.InitialBitrateIntervalMs());
+  EXPECT_FALSE(settings.InitialBitrateFactor());
+}
+
+TEST(QualityScalerSettingsTest, DoesNotReturnTooSmallValue) {
+  test::ScopedKeyValueConfig field_trials(
+      "WebRTC-Video-QualityScalerSettings/"
+      "min_frames:0,initial_scale_factor:0.0,scale_factor:0.0,"
+      "initial_bitrate_interval_ms:-1,initial_bitrate_factor:0.0/");
+  const auto settings = QualityScalerSettings(field_trials);
+  EXPECT_FALSE(settings.MinFrames());
+  EXPECT_FALSE(settings.InitialScaleFactor());
+  EXPECT_FALSE(settings.ScaleFactor());
+  EXPECT_FALSE(settings.InitialBitrateIntervalMs());
+  EXPECT_FALSE(settings.InitialBitrateFactor());
+}
+
+}  // namespace
+}  // namespace webrtc