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

#	count	content
1	n/a	"""Unit tests for idlelib.autoexpand"""
2	n/a	import unittest
3	n/a	from test.support import requires
4	n/a	from tkinter import Text, Tk
5	n/a	#from idlelib.idle_test.mock_tk import Text
6	n/a	from idlelib.autoexpand import AutoExpand
7	n/a
8	n/a
9	n/a	class Dummy_Editwin:
10	n/a	# AutoExpand.__init__ only needs .text
11	n/a	def __init__(self, text):
12	n/a	self.text = text
13	n/a
14	n/a	class AutoExpandTest(unittest.TestCase):
15	n/a
16	n/a	@classmethod
17	n/a	def setUpClass(cls):
18	n/a	if 'tkinter' in str(Text):
19	n/a	requires('gui')
20	n/a	cls.tk = Tk()
21	n/a	cls.text = Text(cls.tk)
22	n/a	else:
23	n/a	cls.text = Text()
24	n/a	cls.auto_expand = AutoExpand(Dummy_Editwin(cls.text))
25	n/a	cls.auto_expand.bell = lambda: None
26	n/a
27	n/a	@classmethod
28	n/a	def tearDownClass(cls):
29	n/a	del cls.text, cls.auto_expand
30	n/a	if hasattr(cls, 'tk'):
31	n/a	cls.tk.destroy()
32	n/a	del cls.tk
33	n/a
34	n/a	def tearDown(self):
35	n/a	self.text.delete('1.0', 'end')
36	n/a
37	n/a	def test_get_prevword(self):
38	n/a	text = self.text
39	n/a	previous = self.auto_expand.getprevword
40	n/a	equal = self.assertEqual
41	n/a
42	n/a	equal(previous(), '')
43	n/a
44	n/a	text.insert('insert', 't')
45	n/a	equal(previous(), 't')
46	n/a
47	n/a	text.insert('insert', 'his')
48	n/a	equal(previous(), 'this')
49	n/a
50	n/a	text.insert('insert', ' ')
51	n/a	equal(previous(), '')
52	n/a
53	n/a	text.insert('insert', 'is')
54	n/a	equal(previous(), 'is')
55	n/a
56	n/a	text.insert('insert', '\nsample\nstring')
57	n/a	equal(previous(), 'string')
58	n/a
59	n/a	text.delete('3.0', 'insert')
60	n/a	equal(previous(), '')
61	n/a
62	n/a	text.delete('1.0', 'end')
63	n/a	equal(previous(), '')
64	n/a
65	n/a	def test_before_only(self):
66	n/a	previous = self.auto_expand.getprevword
67	n/a	expand = self.auto_expand.expand_word_event
68	n/a	equal = self.assertEqual
69	n/a
70	n/a	self.text.insert('insert', 'ab ac bx ad ab a')
71	n/a	equal(self.auto_expand.getwords(), ['ab', 'ad', 'ac', 'a'])
72	n/a	expand('event')
73	n/a	equal(previous(), 'ab')
74	n/a	expand('event')
75	n/a	equal(previous(), 'ad')
76	n/a	expand('event')
77	n/a	equal(previous(), 'ac')
78	n/a	expand('event')
79	n/a	equal(previous(), 'a')
80	n/a
81	n/a	def test_after_only(self):
82	n/a	# Also add punctuation 'noise' that should be ignored.
83	n/a	text = self.text
84	n/a	previous = self.auto_expand.getprevword
85	n/a	expand = self.auto_expand.expand_word_event
86	n/a	equal = self.assertEqual
87	n/a
88	n/a	text.insert('insert', 'a, [ab] ac: () bx"" cd ac= ad ya')
89	n/a	text.mark_set('insert', '1.1')
90	n/a	equal(self.auto_expand.getwords(), ['ab', 'ac', 'ad', 'a'])
91	n/a	expand('event')
92	n/a	equal(previous(), 'ab')
93	n/a	expand('event')
94	n/a	equal(previous(), 'ac')
95	n/a	expand('event')
96	n/a	equal(previous(), 'ad')
97	n/a	expand('event')
98	n/a	equal(previous(), 'a')
99	n/a
100	n/a	def test_both_before_after(self):
101	n/a	text = self.text
102	n/a	previous = self.auto_expand.getprevword
103	n/a	expand = self.auto_expand.expand_word_event
104	n/a	equal = self.assertEqual
105	n/a
106	n/a	text.insert('insert', 'ab xy yz\n')
107	n/a	text.insert('insert', 'a ac by ac')
108	n/a
109	n/a	text.mark_set('insert', '2.1')
110	n/a	equal(self.auto_expand.getwords(), ['ab', 'ac', 'a'])
111	n/a	expand('event')
112	n/a	equal(previous(), 'ab')
113	n/a	expand('event')
114	n/a	equal(previous(), 'ac')
115	n/a	expand('event')
116	n/a	equal(previous(), 'a')
117	n/a
118	n/a	def test_other_expand_cases(self):
119	n/a	text = self.text
120	n/a	expand = self.auto_expand.expand_word_event
121	n/a	equal = self.assertEqual
122	n/a
123	n/a	# no expansion candidate found
124	n/a	equal(self.auto_expand.getwords(), [])
125	n/a	equal(expand('event'), 'break')
126	n/a
127	n/a	text.insert('insert', 'bx cy dz a')
128	n/a	equal(self.auto_expand.getwords(), [])
129	n/a
130	n/a	# reset state by successfully expanding once
131	n/a	# move cursor to another position and expand again
132	n/a	text.insert('insert', 'ac xy a ac ad a')
133	n/a	text.mark_set('insert', '1.7')
134	n/a	expand('event')
135	n/a	initial_state = self.auto_expand.state
136	n/a	text.mark_set('insert', '1.end')
137	n/a	expand('event')
138	n/a	new_state = self.auto_expand.state
139	n/a	self.assertNotEqual(initial_state, new_state)
140	n/a
141	n/a
142	n/a	if __name__ == '__main__':
143	n/a	unittest.main(verbosity=2)