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// Copyright 2014 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 "content/child/worker_thread_registry.h"
#include "base/logging.h"
#include "base/message_loop/message_loop.h"
#include "content/public/child/worker_thread.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
class WorkerThreadRegistryTest : public testing::Test {
public:
void FakeStart() { task_runner_.DidStartCurrentWorkerThread(); }
void FakeStop() { task_runner_.WillStopCurrentWorkerThread(); }
WorkerThreadRegistry task_runner_;
private:
base::MessageLoop message_loop_;
};
class MockObserver : public WorkerThread::Observer {
public:
MOCK_METHOD0(WillStopCurrentWorkerThread, void());
void RemoveSelfOnNotify() {
ON_CALL(*this, WillStopCurrentWorkerThread())
.WillByDefault(testing::Invoke(this, &MockObserver::RemoveSelf));
}
void RemoveSelf() { WorkerThread::RemoveObserver(this); }
WorkerThreadRegistry* runner_;
};
TEST_F(WorkerThreadRegistryTest, BasicObservingAndWorkerId) {
ASSERT_EQ(0, WorkerThread::GetCurrentId());
MockObserver o;
EXPECT_CALL(o, WillStopCurrentWorkerThread()).Times(1);
FakeStart();
WorkerThread::AddObserver(&o);
ASSERT_LT(0, WorkerThread::GetCurrentId());
FakeStop();
}
TEST_F(WorkerThreadRegistryTest, CanRemoveSelfDuringNotification) {
MockObserver o;
o.RemoveSelfOnNotify();
o.runner_ = &task_runner_;
EXPECT_CALL(o, WillStopCurrentWorkerThread()).Times(1);
FakeStart();
WorkerThread::AddObserver(&o);
FakeStop();
}
TEST_F(WorkerThreadRegistryTest, TaskRunnerRemovedCorrectly) {
ASSERT_EQ(0, WorkerThread::GetCurrentId());
MockObserver o;
FakeStart();
WorkerThread::AddObserver(&o);
EXPECT_CALL(o, WillStopCurrentWorkerThread()).Times(1);
// Get the thread id and the task runner for the live thread.
int thread_id = WorkerThread::GetCurrentId();
base::TaskRunner* task_runner = task_runner_.GetTaskRunnerFor(thread_id);
ASSERT_LT(0, thread_id);
ASSERT_NE(nullptr, task_runner);
// Check that the task runner is no longer used after the thread is
// terminated.
FakeStop();
ASSERT_NE(task_runner, task_runner_.GetTaskRunnerFor(thread_id));
}
} // namespace content
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