| // Copyright 2015 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "cobalt/dom/performance.h" |
| |
| #include "cobalt/dom/performance_high_resolution_time.h" |
| #include "cobalt/dom/testing/stub_environment_settings.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace cobalt { |
| namespace dom { |
| |
| TEST(PerformanceTest, Now) { |
| scoped_refptr<base::SystemMonotonicClock> clock( |
| new base::SystemMonotonicClock()); |
| |
| testing::StubEnvironmentSettings environment_settings; |
| scoped_refptr<Performance> performance( |
| new Performance(&environment_settings, clock)); |
| |
| // Test that now returns a result that is within a correct range for the |
| // current time. |
| DOMHighResTimeStamp lower_limit = |
| performance->MonotonicTimeToDOMHighResTimeStamp(base::TimeTicks::Now()); |
| |
| DOMHighResTimeStamp current_time_in_milliseconds = performance->Now(); |
| |
| DOMHighResTimeStamp upper_limit = |
| performance->MonotonicTimeToDOMHighResTimeStamp(base::TimeTicks::Now()); |
| |
| DCHECK_GE(current_time_in_milliseconds, lower_limit); |
| DCHECK_LE(current_time_in_milliseconds, upper_limit); |
| } |
| |
| TEST(PerformanceTest, MonotonicTimeToDOMHighResTimeStamp) { |
| scoped_refptr<base::SystemMonotonicClock> clock( |
| new base::SystemMonotonicClock()); |
| |
| testing::StubEnvironmentSettings environment_settings; |
| scoped_refptr<Performance> performance( |
| new Performance(&environment_settings, clock)); |
| |
| base::TimeTicks current_time_ticks = base::TimeTicks::Now(); |
| DOMHighResTimeStamp current_time = ClampTimeStampMinimumResolution( |
| current_time_ticks, |
| Performance::kPerformanceTimerMinResolutionInMicroseconds); |
| DOMHighResTimeStamp current_time_respect_to_time_origin = |
| performance->MonotonicTimeToDOMHighResTimeStamp(current_time_ticks); |
| DOMHighResTimeStamp time_origin = ClampTimeStampMinimumResolution( |
| performance->GetTimeOrigin(), |
| Performance::kPerformanceTimerMinResolutionInMicroseconds); |
| |
| DCHECK_EQ(current_time_respect_to_time_origin, current_time - time_origin); |
| } |
| |
| TEST(PerformanceTest, NavigationStart) { |
| // navigationStart is supposed to return the time, in milliseconds, since |
| // January 1st, 1970 (UTC): |
| // https://w3c.github.io/navigation-timing/#the-performancetiming-interface |
| // We assume (and test) here though that navigationStart time will be set |
| // relative to the time that the NavigationTiming object was created, since |
| // the object will be created at the beginning of a new navigation. |
| scoped_refptr<base::SystemMonotonicClock> clock( |
| new base::SystemMonotonicClock()); |
| |
| uint64 lower_limit = |
| (base::TimeTicks::Now() - base::TimeTicks::UnixEpoch()).InMilliseconds(); |
| |
| testing::StubEnvironmentSettings environment_settings; |
| scoped_refptr<Performance> performance( |
| new Performance(&environment_settings, clock)); |
| |
| uint64 upper_limit = |
| (base::TimeTicks::Now() - base::TimeTicks::UnixEpoch()).InMilliseconds(); |
| |
| DCHECK_GE(performance->timing()->navigation_start(), lower_limit); |
| DCHECK_LE(performance->timing()->navigation_start(), upper_limit); |
| } |
| |
| } // namespace dom |
| } // namespace cobalt |