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Viewing changes to xpresser/tests/test_xutils.py

  • Committer: Bazaar Package Importer
  • Author(s): Michael Vogt
  • Date: 2011-02-08 13:32:13 UTC
  • mfrom: (1.1.3 upstream)
  • Revision ID: james.westby@ubuntu.com-20110208133213-m1og7ey0m990chg6
Tags: 0.3+bzr20-0ubuntu1
* debian/rules:
  - updated to debhelper 7
  - use dh_python2 instead of python-central
* debian/pycompat:
  - removed, no longer needed
* debian/control:
  - dropped cdbs and python-central dependencies
* bzr snapshot of the current trunk

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xpresser/tests/test_xutils.py
 
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#
 
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# Copyright (c) 2010 Canonical
 
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#
 
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# Written by Gustavo Niemeyer <gustavo@niemeyer.net>
 
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#
 
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# This file is part of the Xpresser GUI automation library.
 
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#
 
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# Xpresser is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU Lesser General Public License version 3,
 
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# as published by the Free Software Foundation.
 
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#
 
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# Xpresser is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU Lesser General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU Lesser General Public License
 
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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#
 
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import time
 
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import gtk
 
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from xpresser import xutils
 
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from xpresser.image import Image
 
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from xpresser.opencvfinder import OpenCVFinder
 
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from xpresser.tests.images import get_image_path
 
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from xpresser.lib.testing import TestCase
 
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class XUtilsTestBase(TestCase):
 
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    def setUp(self):
 
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        xutils.hover(0, 0)
 
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    def flush_gtk(self):
 
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        # Why do we need to do so much to get the button in place before
 
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        # actually trying to click on it? :-(  If we just run until there
 
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        # are no more events, and without sleep, the button will simply
 
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        # return (0, 0) as its position.
 
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        while gtk.events_pending():
 
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            gtk.main_iteration()
 
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        time.sleep(0.1) # Why oh why? :-(
 
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        while gtk.events_pending():
 
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            gtk.main_iteration()
 
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        time.sleep(0.1)
 
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        while gtk.events_pending():
 
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            gtk.main_iteration()
 
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    def create_window(self, child):
 
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        window = gtk.Window(gtk.WINDOW_TOPLEVEL)
 
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        window.connect("delete_event", lambda widget, event: False)
 
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        window.add(child)
 
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        child.show()
 
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        window.show()
 
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        return window
 
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    def create_button_window(self, image_path=None):
 
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        button = gtk.Button()
 
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        if image_path is None:
 
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            image_path = get_image_path("red-square.png")
 
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        button.set_image(gtk.image_new_from_file(image_path))
 
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        return self.create_window(button)
 
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    def create_image_window(self, image_path):
 
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        image = gtk.image_new_from_file(image_path)
 
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        return self.create_window(image)
 
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class XUtilsTest(XUtilsTestBase):
 
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    def test_type(self):
 
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        entry = gtk.Entry()
 
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        window = self.create_window(entry)
 
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        try:
 
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            window.present()
 
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            entry.grab_focus()
 
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            self.flush_gtk()
 
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            xutils.type("Hello there!")
 
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            self.flush_gtk()
 
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            self.assertEquals(entry.get_text(), "Hello there!")
 
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        finally:
 
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            window.destroy()
 
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    def test_take_screenshot(self):
 
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        """Verify that take_screenshot works, with a real screenshot.
 
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        For that, we will put a known image in the screen, and will then
 
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        try to find it in the screenshot.
 
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        """
 
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        red_square = Image("red-square",
 
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                           filename=get_image_path("red-square.png"))
 
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        window = self.create_image_window(red_square.filename)
 
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        self.flush_gtk()
 
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        resolution = gtk.gdk.get_default_root_window().get_size()
 
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        window_x, window_y = window.get_child().window.get_position()
 
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        window_width, window_height = window.get_child().window.get_size()
 
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        big_screenshot = xutils.take_screenshot()
 
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        small_screenshot = xutils.take_screenshot(window_x, window_y,
 
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                                                  window_width, window_height)
 
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        window.destroy()
 
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        self.flush_gtk()
 
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        # Check the basic attributes set
 
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        self.assertEquals(big_screenshot.name, "screenshot")
 
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        self.assertEquals(big_screenshot.width, resolution[0])
 
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        self.assertEquals(big_screenshot.height, resolution[1])
 
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        self.assertEquals(small_screenshot.name, "screenshot")
 
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        self.assertEquals(small_screenshot.width, window_width)
 
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        self.assertEquals(small_screenshot.height, window_height)
 
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        # Now verify the actual images taken.
 
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        finder = OpenCVFinder()
 
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        big_match = finder.find(big_screenshot, red_square)
 
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        small_match = finder.find(small_screenshot, red_square)
 
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        self.assertEquals(big_match.image, red_square)
 
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        self.assertTrue(big_match.similarity > 0.95, big_match.similarity)
 
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        self.assertEquals(small_match.image, red_square)
 
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        self.assertTrue(small_match.similarity > 0.95, small_match.similarity)
 
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        # The match we found in the big screenshot should be in the same
 
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        # position as the window we created.  Note that this may fail if
 
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        # you have the image opened elsewhere. ;-)
 
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        self.assertEquals(big_match.x, window_x)
 
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        self.assertEquals(big_match.y, window_y)
 
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        # With the small match, it should be in the origin, since the
 
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        # screenshot was taken on the precise area.
 
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        self.assertEquals(small_match.x, 0)
 
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        self.assertEquals(small_match.y, 0)
 
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class XUtilsButtonTest(XUtilsTestBase):
 
145
 
 
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    def setUp(self):
 
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        super(XUtilsButtonTest, self).setUp()
 
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        self.window = self.create_button_window()
 
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        self.button = self.window.get_child()
 
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        self.button_clicked = False
 
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        self.button_rclicked = False
 
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        self.button_hovered = False
 
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        def clicked(widget, event):
 
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            if event.button == 1:
 
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                self.button_clicked = True
 
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            elif event.button == 3:
 
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                self.button_rclicked = True
 
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            self.window.destroy()
 
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        def entered(widget):
 
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            self.button_hovered = True
 
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        self.button.connect("button_press_event", clicked)
 
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        self.button.connect("enter", entered)
 
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167
        self.flush_gtk()
 
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    def tearDown(self):
 
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        self.window.destroy()
 
171
 
 
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    def get_button_center(self):
 
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        button_x, button_y = self.button.window.get_position()
 
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        button_width, button_height = self.button.window.get_size()
 
175
        return (button_x + button_width//2, button_y + button_height//2)
 
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177
    def test_click(self):
 
178
        xutils.click(*self.get_button_center())
 
179
        self.flush_gtk()
 
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        self.assertTrue(self.button_clicked)
 
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182
    def test_right_click(self):
 
183
        xutils.right_click(*self.get_button_center())
 
184
        self.flush_gtk()
 
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        self.assertTrue(self.button_rclicked)
 
186
 
 
187
    def test_hover(self):
 
188
        xutils.hover(*self.get_button_center())
 
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        self.flush_gtk()
 
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        self.assertTrue(self.button_hovered)
 
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        self.assertFalse(self.button_clicked)