122 lines
3.7 KiB
Python
122 lines
3.7 KiB
Python
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"""Test idlelib.ParenMatch."""
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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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import unittest
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from test.test_support import requires
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from Tkinter import Tk, Text
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from idlelib.ParenMatch import ParenMatch
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class Mock: # 2.7 does not have unittest.mock
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def __init__(self, *args, **kwargs):
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self.called = False
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def __call__(self, *args, **kwargs):
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self.called = True
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def reset_mock(self, *args, **kwargs):
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self.called = False
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def after(self, *args, **kwargs):
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pass
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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.context_use_ps1 = True
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class ParenMatchTest(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.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.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 test_paren_expression(self):
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"""
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Test ParenMatch with 'expression' style.
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"""
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text = self.text
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pm = ParenMatch(self.editwin)
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pm.set_style('expression')
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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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self.assertTupleEqual(text.tag_prevrange('paren', 'end'),
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('1.10', '1.15'))
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text.insert('insert', ')')
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pm.restore_event()
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self.assertNotIn('<<parenmatch-check-restore>>', text.event_info())
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self.assertEqual(text.tag_prevrange('paren', 'end'), ())
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# paren_closed_event can only be tested as below
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pm.paren_closed_event('event')
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self.assertTupleEqual(text.tag_prevrange('paren', 'end'),
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('1.10', '1.16'))
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def test_paren_default(self):
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"""
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Test ParenMatch with 'default' style.
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"""
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text = self.text
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pm = ParenMatch(self.editwin)
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pm.set_style('default')
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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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self.assertTupleEqual(text.tag_prevrange('paren', 'end'),
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('1.10', '1.11'))
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text.insert('insert', ')')
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pm.restore_event()
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self.assertNotIn('<<parenmatch-check-restore>>', text.event_info())
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self.assertEqual(text.tag_prevrange('paren', 'end'), ())
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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 = ParenMatch(self.editwin)
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text.insert('insert', '# this is a commen)')
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self.assertIsNone(pm.paren_closed_event('event'))
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text.insert('insert', '\ndef')
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self.assertIsNone(pm.flash_paren_event('event'))
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self.assertIsNone(pm.paren_closed_event('event'))
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text.insert('insert', ' a, *arg)')
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self.assertIsNone(pm.paren_closed_event('event'))
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def test_handle_restore_timer(self):
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pm = ParenMatch(self.editwin)
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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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