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import unittest
import tkinter
from test import support
from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest
support.requires('gui')
class MiscTest(AbstractTkTest, unittest.TestCase):
def test_all(self):
self.assertIn("Widget", tkinter.__all__)
# Check that variables from tkinter.constants are also in tkinter.__all__
self.assertIn("CASCADE", tkinter.__all__)
self.assertIsNotNone(tkinter.CASCADE)
# Check that sys, re, and constants are not in tkinter.__all__
self.assertNotIn("re", tkinter.__all__)
self.assertNotIn("sys", tkinter.__all__)
self.assertNotIn("constants", tkinter.__all__)
# Check that an underscored functions is not in tkinter.__all__
self.assertNotIn("_tkerror", tkinter.__all__)
# Check that wantobjects is not in tkinter.__all__
self.assertNotIn("wantobjects", tkinter.__all__)
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('รรฑรฎ')
self.assertEqual(root.clipboard_get(), 'รรฑรฎ')
root.clipboard_append('รงลฤฤ')
self.assertEqual(root.clipboard_get(), 'รรฑรฎรงลฤฤ')
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('๐๐ซ๐ฆ')
self.assertEqual(root.clipboard_get(), '๐๐ซ๐ฆ')
root.clipboard_append('๐ ๐ฌ๐ก๐ข')
self.assertEqual(root.clipboard_get(), '๐๐ซ๐ฆ๐ ๐ฌ๐ก๐ข')
root.clipboard_clear()
with self.assertRaises(tkinter.TclError):
root.clipboard_get()
def test_winfo_rgb(self):
root = self.root
rgb = root.winfo_rgb
# Color name.
self.assertEqual(rgb('red'), (65535, 0, 0))
self.assertEqual(rgb('dark slate blue'), (18504, 15677, 35723))
# #RGB - extends each 4-bit hex value to be 16-bit.
self.assertEqual(rgb('#F0F'), (0xFFFF, 0x0000, 0xFFFF))
# #RRGGBB - extends each 8-bit hex value to be 16-bit.
self.assertEqual(rgb('#4a3c8c'), (0x4a4a, 0x3c3c, 0x8c8c))
# #RRRRGGGGBBBB
self.assertEqual(rgb('#dede14143939'), (0xdede, 0x1414, 0x3939))
# Invalid string.
with self.assertRaises(tkinter.TclError):
rgb('#123456789a')
# RGB triplet is invalid input.
with self.assertRaises(tkinter.TclError):
rgb((111, 78, 55))
def test_event_repr_defaults(self):
e = tkinter.Event()
e.serial = 12345
e.num = '??'
e.height = '??'
e.keycode = '??'
e.state = 0
e.time = 123456789
e.width = '??'
e.x = '??'
e.y = '??'
e.char = ''
e.keysym = '??'
e.keysym_num = '??'
e.type = '100'
e.widget = '??'
e.x_root = '??'
e.y_root = '??'
e.delta = 0
self.assertEqual(repr(e), '<100 event>')
def test_event_repr(self):
e = tkinter.Event()
e.serial = 12345
e.num = 3
e.focus = True
e.height = 200
e.keycode = 65
e.state = 0x30405
e.time = 123456789
e.width = 300
e.x = 10
e.y = 20
e.char = 'A'
e.send_event = True
e.keysym = 'Key-A'
e.keysym_num = ord('A')
e.type = tkinter.EventType.Configure
e.widget = '.text'
e.x_root = 1010
e.y_root = 1020
e.delta = -1
self.assertEqual(repr(e),
"<Configure event send_event=True"
" state=Shift|Control|Button3|0x30000"
" keysym=Key-A keycode=65 char='A'"
" num=3 delta=-1 focus=True"
" x=10 y=20 width=300 height=200>")
def test_getboolean(self):
for v in 'true', 'yes', 'on', '1', 't', 'y', 1, True:
self.assertIs(self.root.getboolean(v), True)
for v in 'false', 'no', 'off', '0', 'f', 'n', 0, False:
self.assertIs(self.root.getboolean(v), False)
self.assertRaises(ValueError, self.root.getboolean, 'yea')
self.assertRaises(ValueError, self.root.getboolean, '')
self.assertRaises(TypeError, self.root.getboolean, None)
self.assertRaises(TypeError, self.root.getboolean, ())
def test_mainloop(self):
log = []
def callback():
log.append(1)
self.root.after(100, self.root.quit)
self.root.after(100, callback)
self.root.mainloop(1)
self.assertEqual(log, [])
self.root.mainloop(0)
self.assertEqual(log, [1])
self.assertTrue(self.root.winfo_exists())
class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase):
def test_default_root(self):
self.assertIs(tkinter._support_default_root, True)
self.assertIsNone(tkinter._default_root)
root = tkinter.Tk()
root2 = tkinter.Tk()
root3 = tkinter.Tk()
self.assertIs(tkinter._default_root, root)
root2.destroy()
self.assertIs(tkinter._default_root, root)
root.destroy()
self.assertIsNone(tkinter._default_root)
root3.destroy()
self.assertIsNone(tkinter._default_root)
def test_no_default_root(self):
self.assertIs(tkinter._support_default_root, True)
self.assertIsNone(tkinter._default_root)
root = tkinter.Tk()
self.assertIs(tkinter._default_root, root)
tkinter.NoDefaultRoot()
self.assertIs(tkinter._support_default_root, False)
self.assertFalse(hasattr(tkinter, '_default_root'))
# repeated call is no-op
tkinter.NoDefaultRoot()
self.assertIs(tkinter._support_default_root, False)
self.assertFalse(hasattr(tkinter, '_default_root'))
root.destroy()
self.assertIs(tkinter._support_default_root, False)
self.assertFalse(hasattr(tkinter, '_default_root'))
root = tkinter.Tk()
self.assertIs(tkinter._support_default_root, False)
self.assertFalse(hasattr(tkinter, '_default_root'))
root.destroy()
def test_getboolean(self):
self.assertRaises(RuntimeError, tkinter.getboolean, '1')
root = tkinter.Tk()
self.assertIs(tkinter.getboolean('1'), True)
self.assertRaises(ValueError, tkinter.getboolean, 'yea')
root.destroy()
tkinter.NoDefaultRoot()
self.assertRaises(RuntimeError, tkinter.getboolean, '1')
def test_mainloop(self):
self.assertRaises(RuntimeError, tkinter.mainloop)
root = tkinter.Tk()
root.after_idle(root.quit)
tkinter.mainloop()
root.destroy()
tkinter.NoDefaultRoot()
self.assertRaises(RuntimeError, tkinter.mainloop)
tests_gui = (MiscTest, DefaultRootTest)
if __name__ == "__main__":
support.run_unittest(*tests_gui)
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