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import unittest
import tkinter
from test import support
from tkinter.test.support import AbstractTkTest
support.requires('gui')
class MiscTest(AbstractTkTest, unittest.TestCase):
def test_repr(self):
t = tkinter.Toplevel(self.root, name='top')
f = tkinter.Frame(t, name='child')
self.assertEqual(repr(f), '<tkinter.Frame object .top.child>')
def test_generated_names(self):
t = tkinter.Toplevel(self.root)
f = tkinter.Frame(t)
f2 = tkinter.Frame(t)
b = tkinter.Button(f2)
for name in str(b).split('.'):
self.assertFalse(name.isidentifier(), msg=repr(name))
def test_tk_setPalette(self):
root = self.root
root.tk_setPalette('black')
self.assertEqual(root['background'], 'black')
root.tk_setPalette('white')
self.assertEqual(root['background'], 'white')
self.assertRaisesRegex(tkinter.TclError,
'^unknown color name "spam"$',
root.tk_setPalette, 'spam')
root.tk_setPalette(background='black')
self.assertEqual(root['background'], 'black')
root.tk_setPalette(background='blue', highlightColor='yellow')
self.assertEqual(root['background'], 'blue')
self.assertEqual(root['highlightcolor'], 'yellow')
root.tk_setPalette(background='yellow', highlightColor='blue')
self.assertEqual(root['background'], 'yellow')
self.assertEqual(root['highlightcolor'], 'blue')
self.assertRaisesRegex(tkinter.TclError,
'^unknown color name "spam"$',
root.tk_setPalette, background='spam')
self.assertRaisesRegex(tkinter.TclError,
'^must specify a background color$',
root.tk_setPalette, spam='white')
self.assertRaisesRegex(tkinter.TclError,
'^must specify a background color$',
root.tk_setPalette, highlightColor='blue')
def test_after(self):
root = self.root
def callback(start=0, step=1):
nonlocal count
count = start + step
# Without function, sleeps for ms.
self.assertIsNone(root.after(1))
# Set up with callback with no args.
count = 0
timer1 = root.after(0, callback)
self.assertIn(timer1, root.tk.call('after', 'info'))
(script, _) = root.tk.splitlist(root.tk.call('after', 'info', timer1))
root.update() # Process all pending events.
self.assertEqual(count, 1)
with self.assertRaises(tkinter.TclError):
root.tk.call(script)
# Set up with callback with args.
count = 0
timer1 = root.after(0, callback, 42, 11)
root.update() # Process all pending events.
self.assertEqual(count, 53)
# Cancel before called.
timer1 = root.after(1000, callback)
self.assertIn(timer1, root.tk.call('after', 'info'))
(script, _) = root.tk.splitlist(root.tk.call('after', 'info', timer1))
root.after_cancel(timer1) # Cancel this event.
self.assertEqual(count, 53)
with self.assertRaises(tkinter.TclError):
root.tk.call(script)
def test_after_idle(self):
root = self.root
def callback(start=0, step=1):
nonlocal count
count = start + step
# Set up with callback with no args.
count = 0
idle1 = root.after_idle(callback)
self.assertIn(idle1, root.tk.call('after', 'info'))
(script, _) = root.tk.splitlist(root.tk.call('after', 'info', idle1))
root.update_idletasks() # Process all pending events.
self.assertEqual(count, 1)
with self.assertRaises(tkinter.TclError):
root.tk.call(script)
# Set up with callback with args.
count = 0
idle1 = root.after_idle(callback, 42, 11)
root.update_idletasks() # Process all pending events.
self.assertEqual(count, 53)
# Cancel before called.
idle1 = root.after_idle(callback)
self.assertIn(idle1, root.tk.call('after', 'info'))
(script, _) = root.tk.splitlist(root.tk.call('after', 'info', idle1))
root.after_cancel(idle1) # Cancel this event.
self.assertEqual(count, 53)
with self.assertRaises(tkinter.TclError):
root.tk.call(script)
def test_after_cancel(self):
root = self.root
def callback():
nonlocal count
count += 1
timer1 = root.after(5000, callback)
idle1 = root.after_idle(callback)
# No value for id raises a ValueError.
with self.assertRaises(ValueError):
root.after_cancel(None)
# Cancel timer event.
count = 0
(script, _) = root.tk.splitlist(root.tk.call('after', 'info', timer1))
root.tk.call(script)
self.assertEqual(count, 1)
root.after_cancel(timer1)
with self.assertRaises(tkinter.TclError):
root.tk.call(script)
self.assertEqual(count, 1)
with self.assertRaises(tkinter.TclError):
root.tk.call('after', 'info', timer1)
# Cancel same event - nothing happens.
root.after_cancel(timer1)
# Cancel idle event.
count = 0
(script, _) = root.tk.splitlist(root.tk.call('after', 'info', idle1))
root.tk.call(script)
self.assertEqual(count, 1)
root.after_cancel(idle1)
with self.assertRaises(tkinter.TclError):
root.tk.call(script)
self.assertEqual(count, 1)
with self.assertRaises(tkinter.TclError):
root.tk.call('after', 'info', idle1)
def test_clipboard(self):
root = self.root
root.clipboard_clear()
root.clipboard_append('Ùñî')
self.assertEqual(root.clipboard_get(), 'Ùñî')
root.clipboard_append('çōđě')
self.assertEqual(root.clipboard_get(), 'Ùñîçōđě')
root.clipboard_clear()
with self.assertRaises(tkinter.TclError):
root.clipboard_get()
def test_clipboard_astral(self):
root = self.root
root.clipboard_clear()
root.clipboard_append('𝔘𝔫𝔦')
self.assertEqual(root.clipboard_get(), '𝔘𝔫𝔦')
root.clipboard_append('𝔠𝔬𝔡𝔢')
self.assertEqual(root.clipboard_get(), '𝔘𝔫𝔦𝔠𝔬𝔡𝔢')
root.clipboard_clear()
with self.assertRaises(tkinter.TclError):
root.clipboard_get()
tests_gui = (MiscTest, )
if __name__ == "__main__":
support.run_unittest(*tests_gui)
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