'''Test idlelib.help_about.
Coverage:
'''
from idlelib import aboutDialog as help_about
from idlelib import textView as textview
from idlelib.idle_test.mock_idle import Func
from idlelib.idle_test.mock_tk import Mbox
import unittest
About = help_about.AboutDialog
class Dummy_about_dialog():
# Dummy class for testing file display functions.
idle_credits = About.ShowIDLECredits.im_func
idle_readme = About.ShowIDLEAbout.im_func
idle_news = About.ShowIDLENEWS.im_func
# Called by the above
display_file_text = About.display_file_text.im_func
class DisplayFileTest(unittest.TestCase):
"Test that .txt files are found and properly decoded."
dialog = Dummy_about_dialog()
@classmethod
def setUpClass(cls):
cls.orig_mbox = textview.tkMessageBox
cls.orig_view = textview.view_text
cls.mbox = Mbox()
cls.view = Func()
textview.tkMessageBox = cls.mbox
textview.view_text = cls.view
cls.About = Dummy_about_dialog()
@classmethod
def tearDownClass(cls):
textview.tkMessageBox = cls.orig_mbox
textview.view_text = cls.orig_view.im_func
def test_file_isplay(self):
for handler in (self.dialog.idle_credits,
self.dialog.idle_readme,
self.dialog.idle_news):
self.mbox.showerror.message = ''
self.view.called = False
handler()
self.assertEqual(self.mbox.showerror.message, '')
self.assertEqual(self.view.called, True)
if __name__ == '__main__':
unittest.main(verbosity=2)
