123 lines
4.2 KiB
Python
123 lines
4.2 KiB
Python
import unittest
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import Tkinter as tkinter
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from test.test_support import requires, run_unittest
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from test_ttk.support import AbstractTkTest
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requires('gui')
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class MiscTest(AbstractTkTest, unittest.TestCase):
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def test_after(self):
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root = self.root
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cbcount = {'count': 0}
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def callback(start=0, step=1):
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cbcount['count'] = start + step
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# Without function, sleeps for ms.
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self.assertIsNone(root.after(1))
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# Set up with callback with no args.
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cbcount['count'] = 0
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timer1 = root.after(0, callback)
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self.assertIn(timer1, root.tk.call('after', 'info'))
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(script, _) = root.tk.splitlist(root.tk.call('after', 'info', timer1))
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root.update() # Process all pending events.
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self.assertEqual(cbcount['count'], 1)
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with self.assertRaises(tkinter.TclError):
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root.tk.call(script)
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# Set up with callback with args.
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cbcount['count'] = 0
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timer1 = root.after(0, callback, 42, 11)
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root.update() # Process all pending events.
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self.assertEqual(cbcount['count'], 53)
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# Cancel before called.
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timer1 = root.after(1000, callback)
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self.assertIn(timer1, root.tk.call('after', 'info'))
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(script, _) = root.tk.splitlist(root.tk.call('after', 'info', timer1))
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root.after_cancel(timer1) # Cancel this event.
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self.assertEqual(cbcount['count'], 53)
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with self.assertRaises(tkinter.TclError):
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root.tk.call(script)
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def test_after_idle(self):
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root = self.root
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cbcount = {'count': 0}
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def callback(start=0, step=1):
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cbcount['count'] = start + step
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# Set up with callback with no args.
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cbcount['count'] = 0
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idle1 = root.after_idle(callback)
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self.assertIn(idle1, root.tk.call('after', 'info'))
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(script, _) = root.tk.splitlist(root.tk.call('after', 'info', idle1))
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root.update_idletasks() # Process all pending events.
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self.assertEqual(cbcount['count'], 1)
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with self.assertRaises(tkinter.TclError):
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root.tk.call(script)
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# Set up with callback with args.
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cbcount['count'] = 0
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idle1 = root.after_idle(callback, 42, 11)
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root.update_idletasks() # Process all pending events.
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self.assertEqual(cbcount['count'], 53)
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# Cancel before called.
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idle1 = root.after_idle(callback)
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self.assertIn(idle1, root.tk.call('after', 'info'))
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(script, _) = root.tk.splitlist(root.tk.call('after', 'info', idle1))
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root.after_cancel(idle1) # Cancel this event.
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self.assertEqual(cbcount['count'], 53)
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with self.assertRaises(tkinter.TclError):
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root.tk.call(script)
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def test_after_cancel(self):
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root = self.root
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cbcount = {'count': 0}
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def callback():
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cbcount['count'] += 1
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timer1 = root.after(5000, callback)
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idle1 = root.after_idle(callback)
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# No value for id raises a ValueError.
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with self.assertRaises(ValueError):
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root.after_cancel(None)
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# Cancel timer event.
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cbcount['count'] = 0
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(script, _) = root.tk.splitlist(root.tk.call('after', 'info', timer1))
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root.tk.call(script)
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self.assertEqual(cbcount['count'], 1)
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root.after_cancel(timer1)
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with self.assertRaises(tkinter.TclError):
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root.tk.call(script)
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self.assertEqual(cbcount['count'], 1)
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with self.assertRaises(tkinter.TclError):
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root.tk.call('after', 'info', timer1)
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# Cancel same event - nothing happens.
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root.after_cancel(timer1)
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# Cancel idle event.
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cbcount['count'] = 0
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(script, _) = root.tk.splitlist(root.tk.call('after', 'info', idle1))
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root.tk.call(script)
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self.assertEqual(cbcount['count'], 1)
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root.after_cancel(idle1)
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with self.assertRaises(tkinter.TclError):
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root.tk.call(script)
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self.assertEqual(cbcount['count'], 1)
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with self.assertRaises(tkinter.TclError):
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root.tk.call('after', 'info', idle1)
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tests_gui = (MiscTest, )
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if __name__ == "__main__":
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run_unittest(*tests_gui)
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