1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// Copyright (c) 2012 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.
#ifndef CHROME_TEST_BASE_VIEW_EVENT_TEST_BASE_H_
#define CHROME_TEST_BASE_VIEW_EVENT_TEST_BASE_H_
// We only want to use ViewEventTestBase in test targets which properly
// isolate each test case by running each test in a separate process.
// This way if a test hangs the test launcher can reliably terminate it.
#if defined(HAS_OUT_OF_PROC_TEST_RUNNER)
#include "base/bind.h"
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/message_loop/message_loop.h"
#include "base/threading/thread.h"
#include "chrome/browser/ui/views/chrome_views_delegate.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/views/widget/widget_delegate.h"
#if defined(OS_WIN)
#include "ui/base/win/scoped_ole_initializer.h"
#endif
namespace aura {
namespace test {
class AuraTestHelper;
}
}
namespace gfx {
class Size;
}
namespace views {
namespace corewm {
class WMState;
}
}
// Base class for Views based tests that dispatch events.
//
// As views based event test involves waiting for events to be processed,
// writing a views based test is slightly different than that of writing
// other unit tests. In particular when the test fails or is done you need
// to stop the message loop. This can be done by way of invoking the Done
// method.
//
// Any delayed callbacks should be done by way of CreateEventTask.
// CreateEventTask checks to see if ASSERT_XXX has been invoked after invoking
// the task. If there was a failure Done is invoked and the test stops.
//
// ViewEventTestBase creates a Window with the View returned from
// CreateContentsView. The preferred size for the view can be customized by
// overriding GetPreferredSize. If you do not override GetPreferredSize the
// preferred size of the view returned from CreateContentsView is used.
//
// Subclasses of ViewEventTestBase must implement two methods:
// . DoTestOnMessageLoop: invoked when the message loop is running. Run your
// test here, invoke Done when done.
// . CreateContentsView: returns the view to place in the window.
//
// Once you have created a ViewEventTestBase use the macro VIEW_TEST to define
// the fixture.
//
// I encountered weird timing problems in initiating dragging and drop that
// necessitated ugly hacks. In particular when the hook installed by
// ui_controls received the mouse event and posted a task that task was not
// processed. To work around this use the following pattern when initiating
// dnd:
// // Schedule the mouse move at a location slightly different from where
// // you really want to move to.
// ui_controls::SendMouseMoveNotifyWhenDone(loc.x + 10, loc.y,
// base::Bind(&YYY, this));
// // Then use this to schedule another mouse move.
// ScheduleMouseMoveInBackground(loc.x, loc.y);
class ViewEventTestBase : public views::WidgetDelegate,
public testing::Test {
public:
ViewEventTestBase();
// Invoke when done either because of failure or success. Quits the message
// loop.
void Done();
// Creates a window.
virtual void SetUp() OVERRIDE;
// Destroys the window.
virtual void TearDown() OVERRIDE;
// Overridden from views::WidgetDelegate:
virtual bool CanResize() const OVERRIDE;
virtual views::View* GetContentsView() OVERRIDE;
virtual const views::Widget* GetWidget() const OVERRIDE;
virtual views::Widget* GetWidget() OVERRIDE;
// Overridden to do nothing so that this class can be used in runnable tasks.
void AddRef() {}
void Release() {}
protected:
virtual ~ViewEventTestBase();
// Returns the view that is added to the window.
virtual views::View* CreateContentsView() = 0;
// Called once the message loop is running.
virtual void DoTestOnMessageLoop() = 0;
// Invoke from test main. Shows the window, starts the message loop and
// schedules a task that invokes DoTestOnMessageLoop.
void StartMessageLoopAndRunTest();
// Returns an empty Size. Subclasses that want a preferred size other than
// that of the View returned by CreateContentsView should override this
// appropriately.
virtual gfx::Size GetPreferredSize();
// Creates a task that calls the specified method back. The specified
// method is called in such a way that if there are any test failures
// Done is invoked.
template <class T, class Method>
base::Closure CreateEventTask(T* target, Method method) {
return base::Bind(&ViewEventTestBase::RunTestMethod, this,
base::Bind(method, target));
}
// Spawns a new thread posts a MouseMove in the background.
void ScheduleMouseMoveInBackground(int x, int y);
views::Widget* window_;
private:
// Stops the thread started by ScheduleMouseMoveInBackground.
void StopBackgroundThread();
// Callback from CreateEventTask. Stops the background thread, runs the
// supplied task and if there are failures invokes Done.
void RunTestMethod(const base::Closure& task);
// The content of the Window.
views::View* content_view_;
// Thread for posting background MouseMoves.
scoped_ptr<base::Thread> dnd_thread_;
content::TestBrowserThreadBundle thread_bundle_;
#if defined(OS_WIN)
ui::ScopedOleInitializer ole_initializer_;
#endif
#if defined(USE_AURA)
scoped_ptr<aura::test::AuraTestHelper> aura_test_helper_;
scoped_ptr<views::corewm::WMState> wm_state_;
#endif
ChromeViewsDelegate views_delegate_;
DISALLOW_COPY_AND_ASSIGN(ViewEventTestBase);
};
// Convenience macro for defining a ViewEventTestBase. See class description
// of ViewEventTestBase for details.
#define VIEW_TEST(test_class, name) \
TEST_F(test_class, name) {\
StartMessageLoopAndRunTest();\
}
#endif // defined(HAS_OUT_OF_PROC_TEST_RUNNER)
#endif // CHROME_TEST_BASE_VIEW_EVENT_TEST_BASE_H_
|
