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https://github.com/python/cpython
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58214d2033
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
94 lines
3.5 KiB
Python
94 lines
3.5 KiB
Python
"Test multicall, coverage 33%."
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from idlelib import multicall
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import unittest
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from test.support import requires, captured_stderr
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from tkinter import Tk, Text
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class MultiCallTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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requires('gui')
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cls.root = Tk()
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cls.root.withdraw()
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cls.mc = multicall.MultiCallCreator(Text)
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@classmethod
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def tearDownClass(cls):
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del cls.mc
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cls.root.update_idletasks()
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## for id in cls.root.after_info():
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## cls.root.after_cancel(id) # Need for EditorWindow.
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cls.root.destroy()
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del cls.root
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def test_creator(self):
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mc = self.mc
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self.assertIs(multicall._multicall_dict[Text], mc)
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self.assertIsSubclass(mc, Text)
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mc2 = multicall.MultiCallCreator(Text)
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self.assertIs(mc, mc2)
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def test_init(self):
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mctext = self.mc(self.root)
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self.assertIsInstance(mctext._MultiCall__binders, list)
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def test_yview(self):
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# Added for tree.wheel_event
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# (it depends on yview to not be overridden)
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mc = self.mc
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self.assertIs(mc.yview, Text.yview)
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mctext = self.mc(self.root)
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self.assertIs(mctext.yview.__func__, Text.yview)
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def test_valid_binding(self):
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# A valid key binding must bind without a warning (cf. gh-55646).
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mctext = self.mc(self.root)
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with captured_stderr() as stderr:
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mctext.event_add('<<test-good>>', '<Control-Key-Up>')
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mctext.bind('<<test-good>>', lambda e: None)
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self.assertEqual(stderr.getvalue(), '')
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def test_invalid_triplet_binding(self):
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# gh-55646: '<Control-Key-up>' parses into a triplet on every platform,
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# so Tk rejects it in bind().
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mctext = self.mc(self.root)
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with captured_stderr() as stderr:
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mctext.event_add('<<test-bad>>', '<Control-Key-up>') # Must not raise.
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mctext.bind('<<test-bad>>', lambda e: None) # Must not raise.
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warning = stderr.getvalue()
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self.assertIn('invalid key binding', warning)
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self.assertIn('test-bad', warning) # The offending action is named.
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def test_invalid_nontriplet_binding(self):
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# gh-55646: '<Foo-Key-Up>' has no valid modifier, so MultiCall does not
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# parse it and falls back to Tk's event_add, which rejects it.
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mctext = self.mc(self.root)
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with captured_stderr() as stderr:
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mctext.event_add('<<test-bad>>', '<Foo-Key-Up>') # Must not raise.
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mctext.bind('<<test-bad>>', lambda e: None) # Must not raise.
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warning = stderr.getvalue()
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self.assertIn('invalid key binding', warning)
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self.assertIn('test-bad', warning) # The offending action is named.
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def test_event_delete_unbound_sequence(self):
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# gh-89360: deleting a sequence that was not added to a virtual
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# event is ignored instead of raising ValueError.
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mctext = self.mc(self.root)
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mctext.event_add('<<tester>>', '<Control-Key-a>')
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info = mctext.event_info('<<tester>>')
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self.assertEqual(len(info), 1)
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# A different sequence, never added: a no-op, not an error.
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mctext.event_delete('<<tester>>', '<Control-Key-b>')
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self.assertEqual(mctext.event_info('<<tester>>'), info)
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# The added sequence can still be deleted normally.
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mctext.event_delete('<<tester>>', '<Control-Key-a>')
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self.assertNotIn(info[0], mctext.event_info('<<tester>>'))
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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