cpython/Lib/idlelib/idle_test/test_help_about.py

144 lines
4.5 KiB
Python

'''Test idlelib.help_about.
Coverage: 100%
'''
from test.support import requires, findfile
from tkinter import Tk, TclError
import unittest
from idlelib.idle_test.mock_idle import Func
from idlelib.idle_test.mock_tk import Mbox_func
from idlelib.help_about import AboutDialog as About
from idlelib import textview
class LiveDialogTest(unittest.TestCase):
"""Simulate user clicking buttons other than [Close].
Test that invoked textview has text from source.
"""
@classmethod
def setUpClass(cls):
requires('gui')
cls.root = Tk()
cls.root.withdraw()
cls.dialog = About(cls.root, 'About IDLE', _utest=True)
@classmethod
def tearDownClass(cls):
del cls.dialog
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
def test_dialog_title(self):
"""Test about dialog title"""
self.assertEqual(self.dialog.title(), 'About IDLE')
def test_printer_buttons(self):
"""Test buttons whose commands use printer function."""
dialog = self.dialog
button_sources = [(self.dialog.py_license, license),
(self.dialog.py_copyright, copyright),
(self.dialog.py_credits, credits)]
for button, printer in button_sources:
printer._Printer__setup()
button.invoke()
self.assertEqual(
printer._Printer__lines[0],
dialog._current_textview.textView.get('1.0', '1.end'))
self.assertEqual(
printer._Printer__lines[1],
dialog._current_textview.textView.get('2.0', '2.end'))
dialog._current_textview.destroy()
def test_file_buttons(self):
"""Test buttons that display files."""
dialog = self.dialog
button_sources = [(self.dialog.readme, 'README.txt'),
(self.dialog.idle_news, 'NEWS.txt'),
(self.dialog.idle_credits, 'CREDITS.txt')]
for button, filename in button_sources:
button.invoke()
fn = findfile(filename, subdir='idlelib')
with open(fn) as f:
self.assertEqual(
f.readline().strip(),
dialog._current_textview.textView.get('1.0', '1.end'))
f.readline()
self.assertEqual(f.readline().strip(),
dialog._current_textview.textView.get('3.0', '3.end'))
dialog._current_textview.destroy()
class CloseTest(unittest.TestCase):
"""Simulate user clicking [Close] button"""
@classmethod
def setUpClass(cls):
requires('gui')
cls.root = Tk()
cls.root.withdraw()
cls.dialog = About(cls.root, 'About IDLE', _utest=True)
@classmethod
def tearDownClass(cls):
del cls.dialog
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
def test_close(self):
self.assertEqual(self.dialog.winfo_class(), 'Toplevel')
self.dialog.button_ok.invoke()
with self.assertRaises(TclError):
self.dialog.winfo_class()
class Dummy_about_dialog():
# Dummy class for testing file display functions.
idle_credits = About.show_idle_credits
idle_readme = About.show_readme
idle_news = About.show_idle_news
# Called by the above
display_file_text = About.display_file_text
_utest = True
class DisplayFileTest(unittest.TestCase):
"""Test functions that display files.
While somewhat redundant with gui-based test_file_dialog,
these unit tests run on all buildbots, not just a few.
"""
dialog = Dummy_about_dialog()
@classmethod
def setUpClass(cls):
cls.orig_error = textview.showerror
cls.orig_view = textview.view_text
cls.error = Mbox_func()
cls.view = Func()
textview.showerror = cls.error
textview.view_text = cls.view
@classmethod
def tearDownClass(cls):
textview.showerror = cls.orig_error
textview.view_text = cls.orig_view
def test_file_display(self):
for handler in (self.dialog.idle_credits,
self.dialog.idle_readme,
self.dialog.idle_news):
self.error.message = ''
self.view.called = False
with self.subTest(handler=handler):
handler()
self.assertEqual(self.error.message, '')
self.assertEqual(self.view.called, True)
if __name__ == '__main__':
unittest.main(verbosity=2)