1 files changed, 106 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/experiments/cpu_speed_experiment_unittest.cc b/third_party/libwebrtc/rtc_base/experiments/cpu_speed_experiment_unittest.cc
new file mode 100644
index 0000000000..2105da3818
--- /dev/null
+++ b/third_party/libwebrtc/rtc_base/experiments/cpu_speed_experiment_unittest.cc
@@ -0,0 +1,106 @@
+/*
+ *  Copyright 2018 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/cpu_speed_experiment.h"
+
+#include "rtc_base/gunit.h"
+#include "test/field_trial.h"
+#include "test/gmock.h"
+
+namespace webrtc {
+
+TEST(CpuSpeedExperimentTest, NoValueIfNotEnabled) {
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_FALSE(cpu_speed_config.GetValue(1, /*num_cores=*/1));
+}
+
+TEST(CpuSpeedExperimentTest, GetValue) {
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/pixels:1000,cpu_speed:-12,cores:4/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_EQ(-12, cpu_speed_config.GetValue(1, /*num_cores=*/1));
+  EXPECT_EQ(-12, cpu_speed_config.GetValue(1000, /*num_cores=*/1));
+  EXPECT_EQ(-16, cpu_speed_config.GetValue(1001, /*num_cores=*/1));
+}
+
+TEST(CpuSpeedExperimentTest, GetValueWithList) {
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/pixels:1000|2000|3000,cpu_speed:-1|-10|-16/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_EQ(-1, cpu_speed_config.GetValue(1, /*num_cores=*/1));
+  EXPECT_EQ(-1, cpu_speed_config.GetValue(1000, /*num_cores=*/1));
+  EXPECT_EQ(-10, cpu_speed_config.GetValue(1001, /*num_cores=*/1));
+  EXPECT_EQ(-10, cpu_speed_config.GetValue(2000, /*num_cores=*/1));
+  EXPECT_EQ(-16, cpu_speed_config.GetValue(2001, /*num_cores=*/1));
+  EXPECT_EQ(-16, cpu_speed_config.GetValue(3000, /*num_cores=*/1));
+  EXPECT_EQ(-16, cpu_speed_config.GetValue(3001, /*num_cores=*/1));
+}
+
+TEST(CpuSpeedExperimentTest, GetValueWithCores) {
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/"
+      "pixels:1000|2000|3000,cpu_speed:-1|-10|-16,"
+      "cpu_speed_le_cores:-5|-11|-16,cores:2/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_EQ(-5, cpu_speed_config.GetValue(1000, /*num_cores=*/1));
+  EXPECT_EQ(-11, cpu_speed_config.GetValue(2000, /*num_cores=*/2));
+  EXPECT_EQ(-1, cpu_speed_config.GetValue(1000, /*num_cores=*/3));
+  EXPECT_EQ(-10, cpu_speed_config.GetValue(2000, /*num_cores=*/4));
+}
+
+TEST(CpuSpeedExperimentTest, GetValueWithCoresUnconfigured) {
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/"
+      "pixels:1000|2000|3000,cpu_speed:-1|-10|-16,"
+      "cpu_speed_le_cores:-5|-11|-16/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_EQ(-1, cpu_speed_config.GetValue(1000, /*num_cores=*/1));
+  EXPECT_EQ(-10, cpu_speed_config.GetValue(2000, /*num_cores=*/2));
+}
+
+TEST(CpuSpeedExperimentTest, GetValueFailsForTooSmallValue) {
+  // Supported range: [-16, -1].
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/pixels:1000|2000|3000,cpu_speed:-1|-10|-17/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_FALSE(cpu_speed_config.GetValue(1, /*num_cores=*/1));
+}
+
+TEST(CpuSpeedExperimentTest, GetValueFailsForTooLargeValue) {
+  // Supported range: [-16, -1].
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/pixels:1000|2000|3000,cpu_speed:0|-10|-16/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_FALSE(cpu_speed_config.GetValue(1, /*num_cores=*/1));
+}
+
+TEST(CpuSpeedExperimentTest, GetValueFailsIfPixelsDecreases) {
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/pixels:1000|999|3000,cpu_speed:-5|-10|-16/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_FALSE(cpu_speed_config.GetValue(1, /*num_cores=*/1));
+}
+
+TEST(CpuSpeedExperimentTest, GetValueFailsIfCpuSpeedIncreases) {
+  webrtc::test::ScopedFieldTrials field_trials(
+      "WebRTC-VP8-CpuSpeed-Arm/pixels:1000|2000|3000,cpu_speed:-5|-4|-16/");
+
+  CpuSpeedExperiment cpu_speed_config;
+  EXPECT_FALSE(cpu_speed_config.GetValue(1, /*num_cores=*/1));
+}
+
+}  // namespace webrtc