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

#	count	content
1	n/a	'''Test idlelib.textview.
2	n/a
3	n/a	Since all methods and functions create (or destroy) a TextViewer, which
4	n/a	is a widget containing multiple widgets, all tests must be gui tests.
5	n/a	Using mock Text would not change this. Other mocks are used to retrieve
6	n/a	information about calls.
7	n/a
8	n/a	Coverage: 94%.
9	n/a	'''
10	n/a	from idlelib import textview as tv
11	n/a	from test.support import requires
12	n/a	requires('gui')
13	n/a
14	n/a	import unittest
15	n/a	import os
16	n/a	from tkinter import Tk
17	n/a	from idlelib.idle_test.mock_idle import Func
18	n/a	from idlelib.idle_test.mock_tk import Mbox_func
19	n/a
20	n/a	def setUpModule():
21	n/a	global root
22	n/a	root = Tk()
23	n/a	root.withdraw()
24	n/a
25	n/a	def tearDownModule():
26	n/a	global root
27	n/a	root.update_idletasks()
28	n/a	root.destroy() # Pyflakes falsely sees root as undefined.
29	n/a	del root
30	n/a
31	n/a
32	n/a	class TV(tv.TextViewer): # Used in TextViewTest.
33	n/a	transient = Func()
34	n/a	grab_set = Func()
35	n/a	wait_window = Func()
36	n/a
37	n/a	class TextViewTest(unittest.TestCase):
38	n/a
39	n/a	def setUp(self):
40	n/a	TV.transient.__init__()
41	n/a	TV.grab_set.__init__()
42	n/a	TV.wait_window.__init__()
43	n/a
44	n/a	def test_init_modal(self):
45	n/a	view = TV(root, 'Title', 'test text')
46	n/a	self.assertTrue(TV.transient.called)
47	n/a	self.assertTrue(TV.grab_set.called)
48	n/a	self.assertTrue(TV.wait_window.called)
49	n/a	view.Ok()
50	n/a
51	n/a	def test_init_nonmodal(self):
52	n/a	view = TV(root, 'Title', 'test text', modal=False)
53	n/a	self.assertFalse(TV.transient.called)
54	n/a	self.assertFalse(TV.grab_set.called)
55	n/a	self.assertFalse(TV.wait_window.called)
56	n/a	view.Ok()
57	n/a
58	n/a	def test_ok(self):
59	n/a	view = TV(root, 'Title', 'test text', modal=False)
60	n/a	view.destroy = Func()
61	n/a	view.Ok()
62	n/a	self.assertTrue(view.destroy.called)
63	n/a	del view.destroy # Unmask real function.
64	n/a	view.destroy()
65	n/a
66	n/a
67	n/a	class ViewFunctionTest(unittest.TestCase):
68	n/a
69	n/a	@classmethod
70	n/a	def setUpClass(cls):
71	n/a	cls.orig_error = tv.showerror
72	n/a	tv.showerror = Mbox_func()
73	n/a
74	n/a	@classmethod
75	n/a	def tearDownClass(cls):
76	n/a	tv.showerror = cls.orig_error
77	n/a	del cls.orig_error
78	n/a
79	n/a	def test_view_text(self):
80	n/a	# If modal True, get tk error 'can't invoke "event" command'.
81	n/a	view = tv.view_text(root, 'Title', 'test text', modal=False)
82	n/a	self.assertIsInstance(view, tv.TextViewer)
83	n/a	view.Ok()
84	n/a
85	n/a	def test_view_file(self):
86	n/a	test_dir = os.path.dirname(__file__)
87	n/a	testfile = os.path.join(test_dir, 'test_textview.py')
88	n/a	view = tv.view_file(root, 'Title', testfile, modal=False)
89	n/a	self.assertIsInstance(view, tv.TextViewer)
90	n/a	self.assertIn('Test', view.textView.get('1.0', '1.end'))
91	n/a	view.Ok()
92	n/a
93	n/a	# Mock showerror will be used; view_file will return None.
94	n/a	testfile = os.path.join(test_dir, '../notthere.py')
95	n/a	view = tv.view_file(root, 'Title', testfile, modal=False)
96	n/a	self.assertIsNone(view)
97	n/a
98	n/a
99	n/a	if __name__ == '__main__':
100	n/a	unittest.main(verbosity=2)