scheduler: Move the Blink scheduler into Blink

components/scheduler/renderer/task_cost_estimator_unittest.cc

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "components/scheduler/renderer/task_cost_estimator.h"
-
-#include <memory>
-
-#include "base/test/simple_test_tick_clock.h"
-#include "components/scheduler/base/test_time_source.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace scheduler {
-
-class TaskCostEstimatorTest : public testing::Test {
- public:
-  TaskCostEstimatorTest() {}
-  ~TaskCostEstimatorTest() override {}
-
-  void SetUp() override {
-    test_time_source_.reset(new TestTimeSource(&clock_));
-  }
-
-  base::SimpleTestTickClock clock_;
-  std::unique_ptr<TestTimeSource> test_time_source_;
-};
-
-class TaskCostEstimatorForTest : public TaskCostEstimator {
- public:
-  TaskCostEstimatorForTest(TestTimeSource* test_time_source,
-                           int sample_count,
-                           double estimation_percentile)
-      : TaskCostEstimator(test_time_source,
-                          sample_count,
-                          estimation_percentile) {}
-};
-
-TEST_F(TaskCostEstimatorTest, BasicEstimation) {
-  TaskCostEstimatorForTest estimator(test_time_source_.get(), 1, 100);
-  base::PendingTask task(FROM_HERE, base::Closure());
-
-  estimator.WillProcessTask(task);
-  clock_.Advance(base::TimeDelta::FromMilliseconds(500));
-  estimator.DidProcessTask(task);
-
-  EXPECT_EQ(base::TimeDelta::FromMilliseconds(500),
-            estimator.expected_task_duration());
-}
-
-TEST_F(TaskCostEstimatorTest, Clear) {
-  TaskCostEstimatorForTest estimator(test_time_source_.get(), 1, 100);
-  base::PendingTask task(FROM_HERE, base::Closure());
-
-  estimator.WillProcessTask(task);
-  clock_.Advance(base::TimeDelta::FromMilliseconds(500));
-  estimator.DidProcessTask(task);
-
-  estimator.Clear();
-
-  EXPECT_EQ(base::TimeDelta(), estimator.expected_task_duration());
-}
-
-TEST_F(TaskCostEstimatorTest, NestedRunLoop) {
-  TaskCostEstimatorForTest estimator(test_time_source_.get(), 1, 100);
-  base::PendingTask task(FROM_HERE, base::Closure());
-
-  // Make sure we ignore the tasks inside the nested run loop.
-  estimator.WillProcessTask(task);
-  estimator.WillProcessTask(task);
-  clock_.Advance(base::TimeDelta::FromMilliseconds(500));
-  estimator.DidProcessTask(task);
-  clock_.Advance(base::TimeDelta::FromMilliseconds(500));
-  estimator.DidProcessTask(task);
-
-  EXPECT_EQ(base::TimeDelta::FromMilliseconds(1000),
-            estimator.expected_task_duration());
-}
-
-}  // namespace scheduler