1/*
2 * Copyright (C) 2013 Google Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 */
26
27#include "config.h"
28
29#include "platform/LifecycleContext.h"
30
31#include "platform/LifecycleNotifier.h"
32#include <gtest/gtest.h>
33
34using namespace blink;
35
36namespace {
37class DummyContext : public LifecycleContext<DummyContext> {
38};
39}
40
41namespace blink {
42
43template<> void observerContext(DummyContext* context, LifecycleObserver<DummyContext>* observer)
44{
45    context->wasObservedBy(observer);
46}
47
48template<> void unobserverContext(DummyContext* context, LifecycleObserver<DummyContext>* observer)
49{
50    context->wasUnobservedBy(observer);
51}
52
53}
54
55namespace {
56
57
58class TestingObserver : public LifecycleObserver<DummyContext> {
59public:
60    TestingObserver(DummyContext* context)
61        : LifecycleObserver<DummyContext>(context)
62        , m_contextDestroyedCalled(false)
63    { }
64
65    virtual void contextDestroyed() OVERRIDE
66    {
67        LifecycleObserver<DummyContext>::contextDestroyed();
68        m_contextDestroyedCalled = true;
69    }
70
71    bool m_contextDestroyedCalled;
72
73    void unobserve() { observeContext(0); }
74};
75
76TEST(LifecycleContextTest, shouldObserveContextDestroyed)
77{
78    OwnPtr<DummyContext> context = adoptPtr(new DummyContext());
79    OwnPtr<TestingObserver> observer = adoptPtr(new TestingObserver(context.get()));
80
81    EXPECT_EQ(observer->lifecycleContext(), context.get());
82    EXPECT_FALSE(observer->m_contextDestroyedCalled);
83
84    context.clear();
85    EXPECT_EQ(observer->lifecycleContext(), static_cast<DummyContext*>(0));
86    EXPECT_TRUE(observer->m_contextDestroyedCalled);
87}
88
89TEST(LifecycleContextTest, shouldNotObserveContextDestroyedIfUnobserve)
90{
91    OwnPtr<DummyContext> context = adoptPtr(new DummyContext());
92    OwnPtr<TestingObserver> observer = adoptPtr(new TestingObserver(context.get()));
93
94    observer->unobserve();
95    context.clear();
96    EXPECT_EQ(observer->lifecycleContext(), static_cast<DummyContext*>(0));
97    EXPECT_FALSE(observer->m_contextDestroyedCalled);
98}
99
100
101}
102