Python code coverage for Lib/idlelib/idle_test/test_parenmatch.py

#	count	content
1	n/a	'''Test idlelib.parenmatch.
2	n/a
3	n/a	This must currently be a gui test because ParenMatch methods use
4	n/a	several text methods not defined on idlelib.idle_test.mock_tk.Text.
5	n/a	'''
6	n/a	from test.support import requires
7	n/a	requires('gui')
8	n/a
9	n/a	import unittest
10	n/a	from unittest.mock import Mock
11	n/a	from tkinter import Tk, Text
12	n/a	from idlelib.parenmatch import ParenMatch
13	n/a
14	n/a	class DummyEditwin:
15	n/a	def __init__(self, text):
16	n/a	self.text = text
17	n/a	self.indentwidth = 8
18	n/a	self.tabwidth = 8
19	n/a	self.context_use_ps1 = True
20	n/a
21	n/a
22	n/a	class ParenMatchTest(unittest.TestCase):
23	n/a
24	n/a	@classmethod
25	n/a	def setUpClass(cls):
26	n/a	cls.root = Tk()
27	n/a	cls.text = Text(cls.root)
28	n/a	cls.editwin = DummyEditwin(cls.text)
29	n/a	cls.editwin.text_frame = Mock()
30	n/a
31	n/a	@classmethod
32	n/a	def tearDownClass(cls):
33	n/a	del cls.text, cls.editwin
34	n/a	cls.root.update_idletasks()
35	n/a	cls.root.destroy()
36	n/a	del cls.root
37	n/a
38	n/a	def tearDown(self):
39	n/a	self.text.delete('1.0', 'end')
40	n/a
41	n/a	def get_parenmatch(self):
42	n/a	pm = ParenMatch(self.editwin)
43	n/a	pm.bell = lambda: None
44	n/a	return pm
45	n/a
46	n/a	def test_paren_expression(self):
47	n/a	"""
48	n/a	Test ParenMatch with 'expression' style.
49	n/a	"""
50	n/a	text = self.text
51	n/a	pm = self.get_parenmatch()
52	n/a	pm.set_style('expression')
53	n/a
54	n/a	text.insert('insert', 'def foobar(a, b')
55	n/a	pm.flash_paren_event('event')
56	n/a	self.assertIn('<<parenmatch-check-restore>>', text.event_info())
57	n/a	self.assertTupleEqual(text.tag_prevrange('paren', 'end'),
58	n/a	('1.10', '1.15'))
59	n/a	text.insert('insert', ')')
60	n/a	pm.restore_event()
61	n/a	self.assertNotIn('<<parenmatch-check-restore>>', text.event_info())
62	n/a	self.assertEqual(text.tag_prevrange('paren', 'end'), ())
63	n/a
64	n/a	# paren_closed_event can only be tested as below
65	n/a	pm.paren_closed_event('event')
66	n/a	self.assertTupleEqual(text.tag_prevrange('paren', 'end'),
67	n/a	('1.10', '1.16'))
68	n/a
69	n/a	def test_paren_default(self):
70	n/a	"""
71	n/a	Test ParenMatch with 'default' style.
72	n/a	"""
73	n/a	text = self.text
74	n/a	pm = self.get_parenmatch()
75	n/a	pm.set_style('default')
76	n/a
77	n/a	text.insert('insert', 'def foobar(a, b')
78	n/a	pm.flash_paren_event('event')
79	n/a	self.assertIn('<<parenmatch-check-restore>>', text.event_info())
80	n/a	self.assertTupleEqual(text.tag_prevrange('paren', 'end'),
81	n/a	('1.10', '1.11'))
82	n/a	text.insert('insert', ')')
83	n/a	pm.restore_event()
84	n/a	self.assertNotIn('<<parenmatch-check-restore>>', text.event_info())
85	n/a	self.assertEqual(text.tag_prevrange('paren', 'end'), ())
86	n/a
87	n/a	def test_paren_corner(self):
88	n/a	"""
89	n/a	Test corner cases in flash_paren_event and paren_closed_event.
90	n/a
91	n/a	These cases force conditional expression and alternate paths.
92	n/a	"""
93	n/a	text = self.text
94	n/a	pm = self.get_parenmatch()
95	n/a
96	n/a	text.insert('insert', '# this is a commen)')
97	n/a	self.assertIsNone(pm.paren_closed_event('event'))
98	n/a
99	n/a	text.insert('insert', '\ndef')
100	n/a	self.assertIsNone(pm.flash_paren_event('event'))
101	n/a	self.assertIsNone(pm.paren_closed_event('event'))
102	n/a
103	n/a	text.insert('insert', ' a, *arg)')
104	n/a	self.assertIsNone(pm.paren_closed_event('event'))
105	n/a
106	n/a	def test_handle_restore_timer(self):
107	n/a	pm = self.get_parenmatch()
108	n/a	pm.restore_event = Mock()
109	n/a	pm.handle_restore_timer(0)
110	n/a	self.assertTrue(pm.restore_event.called)
111	n/a	pm.restore_event.reset_mock()
112	n/a	pm.handle_restore_timer(1)
113	n/a	self.assertFalse(pm.restore_event.called)
114	n/a
115	n/a
116	n/a	if __name__ == '__main__':
117	n/a	unittest.main(verbosity=2)