third_party/WebKit/Source/core/dom/ActiveDOMObjectTest.cpp

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#include "core/dom/ActiveDOMObject.h"

#include "core/dom/Document.h"
#include "core/testing/DummyPageHolder.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include <memory>

namespace blink {

class MockActiveDOMObject final
    : public GarbageCollectedFinalized<MockActiveDOMObject>,
      public ActiveDOMObject {
  USING_GARBAGE_COLLECTED_MIXIN(MockActiveDOMObject);

 public:
  explicit MockActiveDOMObject(ExecutionContext* context)
      : ActiveDOMObject(context) {}

  DEFINE_INLINE_VIRTUAL_TRACE() { ActiveDOMObject::trace(visitor); }

  MOCK_METHOD0(suspend, void());
  MOCK_METHOD0(resume, void());
  MOCK_METHOD0(contextDestroyed, void());
};

class ActiveDOMObjectTest : public ::testing::Test {
 protected:
  ActiveDOMObjectTest();

  Document& srcDocument() const { return m_srcPageHolder->document(); }
  Document& destDocument() const { return m_destPageHolder->document(); }
  MockActiveDOMObject& activeDOMObject() { return *m_activeDOMObject; }

 private:
  std::unique_ptr<DummyPageHolder> m_srcPageHolder;
  std::unique_ptr<DummyPageHolder> m_destPageHolder;
  Persistent<MockActiveDOMObject> m_activeDOMObject;
};

ActiveDOMObjectTest::ActiveDOMObjectTest()
    : m_srcPageHolder(DummyPageHolder::create(IntSize(800, 600))),
      m_destPageHolder(DummyPageHolder::create(IntSize(800, 600))),
      m_activeDOMObject(new MockActiveDOMObject(&m_srcPageHolder->document())) {
  m_activeDOMObject->suspendIfNeeded();
}

TEST_F(ActiveDOMObjectTest, NewContextObserved) {
  unsigned initialSrcCount = srcDocument().activeDOMObjectCount();
  unsigned initialDestCount = destDocument().activeDOMObjectCount();

  EXPECT_CALL(activeDOMObject(), resume());
  activeDOMObject().didMoveToNewExecutionContext(&destDocument());

  EXPECT_EQ(initialSrcCount - 1, srcDocument().activeDOMObjectCount());
  EXPECT_EQ(initialDestCount + 1, destDocument().activeDOMObjectCount());
}

TEST_F(ActiveDOMObjectTest, MoveToActiveDocument) {
  EXPECT_CALL(activeDOMObject(), resume());
  activeDOMObject().didMoveToNewExecutionContext(&destDocument());
}

TEST_F(ActiveDOMObjectTest, MoveToSuspendedDocument) {
  destDocument().suspendScheduledTasks();

  EXPECT_CALL(activeDOMObject(), suspend());
  activeDOMObject().didMoveToNewExecutionContext(&destDocument());
}

TEST_F(ActiveDOMObjectTest, MoveToStoppedDocument) {
  destDocument().shutdown();

  EXPECT_CALL(activeDOMObject(), contextDestroyed());
  activeDOMObject().didMoveToNewExecutionContext(&destDocument());
}

}  // namespace blink