Source/platform/LifecycleContextTest.cpp

/*
 * Copyright (C) 2013 Google Inc. All Rights Reserved.
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 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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#include "config.h"

#include "platform/LifecycleContext.h"

#include "platform/LifecycleNotifier.h"
#include <gtest/gtest.h>

using namespace WebCore;

namespace {
class DummyContext : public LifecycleContext<DummyContext> {
};
}

namespace WebCore {

template<> void observerContext(DummyContext* context, LifecycleObserver<DummyContext>* observer)
{
    context->wasObservedBy(observer);
}

template<> void unobserverContext(DummyContext* context, LifecycleObserver<DummyContext>* observer)
{
    context->wasUnobservedBy(observer);
}

}

namespace {


class TestingObserver : public LifecycleObserver<DummyContext> {
public:
    TestingObserver(DummyContext* context)
        : LifecycleObserver<DummyContext>(context)
        , m_contextDestroyedCalled(false)
    { }

    virtual void contextDestroyed() OVERRIDE
    {
        LifecycleObserver<DummyContext>::contextDestroyed();
        m_contextDestroyedCalled = true;
    }

    bool m_contextDestroyedCalled;

    void unobserve() { observeContext(0); }
};

TEST(LifecycleContextTest, shouldObserveContextDestroyed)
{
    OwnPtr<DummyContext> context = adoptPtr(new DummyContext());
    OwnPtr<TestingObserver> observer = adoptPtr(new TestingObserver(context.get()));

    EXPECT_EQ(observer->lifecycleContext(), context.get());
    EXPECT_FALSE(observer->m_contextDestroyedCalled);

    context.clear();
    EXPECT_EQ(observer->lifecycleContext(), static_cast<DummyContext*>(0));
    EXPECT_TRUE(observer->m_contextDestroyedCalled);
}

TEST(LifecycleContextTest, shouldNotObserveContextDestroyedIfUnobserve)
{
    OwnPtr<DummyContext> context = adoptPtr(new DummyContext());
    OwnPtr<TestingObserver> observer = adoptPtr(new TestingObserver(context.get()));

    observer->unobserve();
    context.clear();
    EXPECT_EQ(observer->lifecycleContext(), static_cast<DummyContext*>(0));
    EXPECT_FALSE(observer->m_contextDestroyedCalled);
}


}