Track webcore worker message loops in chromium.

webkit/glue/worker_task_runner_unittest.cc

+// Copyright (c) 2011 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 "base/logging.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "webkit/glue/worker_task_runner.h"
+
+namespace webkit_glue {
+
+class WorkerTaskRunnerTest : public testing::Test {
+ public:
+  void FakeStart() {
+    task_runner_.OnWorkerRunLoopStarted(WebKit::WebWorkerRunLoop());
+  }
+  void FakeStop() {
+    task_runner_.OnWorkerRunLoopStopped(WebKit::WebWorkerRunLoop());
+  }
+  WorkerTaskRunner task_runner_;
+};
+
+class MockObserver : public WorkerTaskRunner::Observer {
+ public:
+  MOCK_METHOD0(OnWorkerRunLoopStarted, void());
+  MOCK_METHOD0(OnWorkerRunLoopStopped, void());
+  void RemoveSelfOnNotify() {
+    ON_CALL(*this, OnWorkerRunLoopStarted()).WillByDefault(
+        testing::Invoke(this, &MockObserver::RemoveSelf));
+  }
+  void RemoveSelf() {
+    runner_->RemoveObserver(this);
+  }
+  WorkerTaskRunner* runner_;
+};
+
+TEST_F(WorkerTaskRunnerTest, BasicObservingAndWorkerId) {
+  ASSERT_EQ(0, task_runner_.CurrentWorkerId());
+  MockObserver o;
+  EXPECT_CALL(o, OnWorkerRunLoopStarted()).Times(1);
+  EXPECT_CALL(o, OnWorkerRunLoopStopped()).Times(1);
+  task_runner_.AddObserver(&o);
+  FakeStart();
+  ASSERT_LT(0, task_runner_.CurrentWorkerId());
+  FakeStop();
+}
+
+TEST_F(WorkerTaskRunnerTest, RegisterAfterStart) {
+  MockObserver o;
+  EXPECT_CALL(o, OnWorkerRunLoopStarted()).Times(0);
+  EXPECT_CALL(o, OnWorkerRunLoopStopped()).Times(1);
+  FakeStart();
+  task_runner_.AddObserver(&o);
+  FakeStop();
+}
+
+TEST_F(WorkerTaskRunnerTest, CanRemoveSelfDuringNotification) {
+  MockObserver o;
+  o.RemoveSelfOnNotify();
+  o.runner_ = &task_runner_;
+  EXPECT_CALL(o, OnWorkerRunLoopStarted()).Times(1);
+  EXPECT_CALL(o, OnWorkerRunLoopStopped()).Times(0);
+  task_runner_.AddObserver(&o);
+  FakeStart();
+  FakeStop();
+}
+
+}