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

#	count	content
1	n/a	import unittest
2	n/a	from test.support import requires
3	n/a
4	n/a	import tkinter as tk
5	n/a	from tkinter import Text as tkText
6	n/a	from idlelib.idle_test.mock_tk import Text as mkText
7	n/a	from idlelib.history import History
8	n/a	from idlelib.config import idleConf
9	n/a
10	n/a	line1 = 'a = 7'
11	n/a	line2 = 'b = a'
12	n/a
13	n/a	class StoreTest(unittest.TestCase):
14	n/a	'''Tests History.__init__ and History.store with mock Text'''
15	n/a
16	n/a	@classmethod
17	n/a	def setUpClass(cls):
18	n/a	cls.text = mkText()
19	n/a	cls.history = History(cls.text)
20	n/a
21	n/a	def tearDown(self):
22	n/a	self.text.delete('1.0', 'end')
23	n/a	self.history.history = []
24	n/a
25	n/a	def test_init(self):
26	n/a	self.assertIs(self.history.text, self.text)
27	n/a	self.assertEqual(self.history.history, [])
28	n/a	self.assertIsNone(self.history.prefix)
29	n/a	self.assertIsNone(self.history.pointer)
30	n/a	self.assertEqual(self.history.cyclic,
31	n/a	idleConf.GetOption("main", "History", "cyclic", 1, "bool"))
32	n/a
33	n/a	def test_store_short(self):
34	n/a	self.history.store('a')
35	n/a	self.assertEqual(self.history.history, [])
36	n/a	self.history.store(' a ')
37	n/a	self.assertEqual(self.history.history, [])
38	n/a
39	n/a	def test_store_dup(self):
40	n/a	self.history.store(line1)
41	n/a	self.assertEqual(self.history.history, [line1])
42	n/a	self.history.store(line2)
43	n/a	self.assertEqual(self.history.history, [line1, line2])
44	n/a	self.history.store(line1)
45	n/a	self.assertEqual(self.history.history, [line2, line1])
46	n/a
47	n/a	def test_store_reset(self):
48	n/a	self.history.prefix = line1
49	n/a	self.history.pointer = 0
50	n/a	self.history.store(line2)
51	n/a	self.assertIsNone(self.history.prefix)
52	n/a	self.assertIsNone(self.history.pointer)
53	n/a
54	n/a
55	n/a	class TextWrapper:
56	n/a	def __init__(self, master):
57	n/a	self.text = tkText(master=master)
58	n/a	self._bell = False
59	n/a	def __getattr__(self, name):
60	n/a	return getattr(self.text, name)
61	n/a	def bell(self):
62	n/a	self._bell = True
63	n/a
64	n/a	class FetchTest(unittest.TestCase):
65	n/a	'''Test History.fetch with wrapped tk.Text.
66	n/a	'''
67	n/a	@classmethod
68	n/a	def setUpClass(cls):
69	n/a	requires('gui')
70	n/a	cls.root = tk.Tk()
71	n/a	cls.root.withdraw()
72	n/a
73	n/a	def setUp(self):
74	n/a	self.text = text = TextWrapper(self.root)
75	n/a	text.insert('1.0', ">>> ")
76	n/a	text.mark_set('iomark', '1.4')
77	n/a	text.mark_gravity('iomark', 'left')
78	n/a	self.history = History(text)
79	n/a	self.history.history = [line1, line2]
80	n/a
81	n/a	@classmethod
82	n/a	def tearDownClass(cls):
83	n/a	cls.root.destroy()
84	n/a	del cls.root
85	n/a
86	n/a	def fetch_test(self, reverse, line, prefix, index, *, bell=False):
87	n/a	# Perform one fetch as invoked by Alt-N or Alt-P
88	n/a	# Test the result. The line test is the most important.
89	n/a	# The last two are diagnostic of fetch internals.
90	n/a	History = self.history
91	n/a	History.fetch(reverse)
92	n/a
93	n/a	Equal = self.assertEqual
94	n/a	Equal(self.text.get('iomark', 'end-1c'), line)
95	n/a	Equal(self.text._bell, bell)
96	n/a	if bell:
97	n/a	self.text._bell = False
98	n/a	Equal(History.prefix, prefix)
99	n/a	Equal(History.pointer, index)
100	n/a	Equal(self.text.compare("insert", '==', "end-1c"), 1)
101	n/a
102	n/a	def test_fetch_prev_cyclic(self):
103	n/a	prefix = ''
104	n/a	test = self.fetch_test
105	n/a	test(True, line2, prefix, 1)
106	n/a	test(True, line1, prefix, 0)
107	n/a	test(True, prefix, None, None, bell=True)
108	n/a
109	n/a	def test_fetch_next_cyclic(self):
110	n/a	prefix = ''
111	n/a	test = self.fetch_test
112	n/a	test(False, line1, prefix, 0)
113	n/a	test(False, line2, prefix, 1)
114	n/a	test(False, prefix, None, None, bell=True)
115	n/a
116	n/a	# Prefix 'a' tests skip line2, which starts with 'b'
117	n/a	def test_fetch_prev_prefix(self):
118	n/a	prefix = 'a'
119	n/a	self.text.insert('iomark', prefix)
120	n/a	self.fetch_test(True, line1, prefix, 0)
121	n/a	self.fetch_test(True, prefix, None, None, bell=True)
122	n/a
123	n/a	def test_fetch_next_prefix(self):
124	n/a	prefix = 'a'
125	n/a	self.text.insert('iomark', prefix)
126	n/a	self.fetch_test(False, line1, prefix, 0)
127	n/a	self.fetch_test(False, prefix, None, None, bell=True)
128	n/a
129	n/a	def test_fetch_prev_noncyclic(self):
130	n/a	prefix = ''
131	n/a	self.history.cyclic = False
132	n/a	test = self.fetch_test
133	n/a	test(True, line2, prefix, 1)
134	n/a	test(True, line1, prefix, 0)
135	n/a	test(True, line1, prefix, 0, bell=True)
136	n/a
137	n/a	def test_fetch_next_noncyclic(self):
138	n/a	prefix = ''
139	n/a	self.history.cyclic = False
140	n/a	test = self.fetch_test
141	n/a	test(False, prefix, None, None, bell=True)
142	n/a	test(True, line2, prefix, 1)
143	n/a	test(False, prefix, None, None, bell=True)
144	n/a	test(False, prefix, None, None, bell=True)
145	n/a
146	n/a	def test_fetch_cursor_move(self):
147	n/a	# Move cursor after fetch
148	n/a	self.history.fetch(reverse=True) # initialization
149	n/a	self.text.mark_set('insert', 'iomark')
150	n/a	self.fetch_test(True, line2, None, None, bell=True)
151	n/a
152	n/a	def test_fetch_edit(self):
153	n/a	# Edit after fetch
154	n/a	self.history.fetch(reverse=True) # initialization
155	n/a	self.text.delete('iomark', 'insert', )
156	n/a	self.text.insert('iomark', 'a =')
157	n/a	self.fetch_test(True, line1, 'a =', 0) # prefix is reset
158	n/a
159	n/a	def test_history_prev_next(self):
160	n/a	# Minimally test functions bound to events
161	n/a	self.history.history_prev('dummy event')
162	n/a	self.assertEqual(self.history.pointer, 1)
163	n/a	self.history.history_next('dummy event')
164	n/a	self.assertEqual(self.history.pointer, None)
165	n/a
166	n/a
167	n/a	if __name__ == '__main__':
168	n/a	unittest.main(verbosity=2, exit=2)