113 lines
3.5 KiB
Python
113 lines
3.5 KiB
Python
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"""Test parenmatch, coverage 91%.
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This must currently be a gui test because ParenMatch methods use
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several text methods not defined on idlelib.idle_test.mock_tk.Text.
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"""
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from idlelib.parenmatch import ParenMatch
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from test.support import requires
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requires('gui')
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import unittest
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from unittest.mock import Mock
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from tkinter import Tk, Text
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class DummyEditwin:
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def __init__(self, text):
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self.text = text
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self.indentwidth = 8
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self.tabwidth = 8
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self.prompt_last_line = '>>>' # Currently not used by parenmatch.
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class ParenMatchTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.root = Tk()
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cls.root.withdraw()
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cls.text = Text(cls.root)
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cls.editwin = DummyEditwin(cls.text)
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cls.editwin.text_frame = Mock()
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@classmethod
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def tearDownClass(cls):
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del cls.text, cls.editwin
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cls.root.update_idletasks()
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cls.root.destroy()
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del cls.root
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def tearDown(self):
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self.text.delete('1.0', 'end')
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def get_parenmatch(self):
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pm = ParenMatch(self.editwin)
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pm.bell = lambda: None
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return pm
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def test_paren_styles(self):
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"""
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Test ParenMatch with each style.
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"""
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text = self.text
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pm = self.get_parenmatch()
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for style, range1, range2 in (
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('opener', ('1.10', '1.11'), ('1.10', '1.11')),
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('default',('1.10', '1.11'),('1.10', '1.11')),
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('parens', ('1.14', '1.15'), ('1.15', '1.16')),
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('expression', ('1.10', '1.15'), ('1.10', '1.16'))):
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with self.subTest(style=style):
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text.delete('1.0', 'end')
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pm.STYLE = style
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text.insert('insert', 'def foobar(a, b')
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pm.flash_paren_event('event')
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self.assertIn('<<parenmatch-check-restore>>', text.event_info())
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if style == 'parens':
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self.assertTupleEqual(text.tag_nextrange('paren', '1.0'),
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('1.10', '1.11'))
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self.assertTupleEqual(
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text.tag_prevrange('paren', 'end'), range1)
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text.insert('insert', ')')
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pm.restore_event()
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self.assertNotIn('<<parenmatch-check-restore>>',
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text.event_info())
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self.assertEqual(text.tag_prevrange('paren', 'end'), ())
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pm.paren_closed_event('event')
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self.assertTupleEqual(
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text.tag_prevrange('paren', 'end'), range2)
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def test_paren_corner(self):
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"""
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Test corner cases in flash_paren_event and paren_closed_event.
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These cases force conditional expression and alternate paths.
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"""
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text = self.text
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pm = self.get_parenmatch()
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text.insert('insert', '# this is a commen)')
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pm.paren_closed_event('event')
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text.insert('insert', '\ndef')
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pm.flash_paren_event('event')
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pm.paren_closed_event('event')
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text.insert('insert', ' a, *arg)')
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pm.paren_closed_event('event')
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def test_handle_restore_timer(self):
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pm = self.get_parenmatch()
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pm.restore_event = Mock()
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pm.handle_restore_timer(0)
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self.assertTrue(pm.restore_event.called)
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pm.restore_event.reset_mock()
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pm.handle_restore_timer(1)
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self.assertFalse(pm.restore_event.called)
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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