mirror of https://github.com/python/cpython
101 lines
2.8 KiB
Python
101 lines
2.8 KiB
Python
'''Test idlelib.textview.
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Since all methods and functions create (or destroy) a TextViewer, which
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is a widget containing multiple widgets, all tests must be gui tests.
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Using mock Text would not change this. Other mocks are used to retrieve
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information about calls.
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Coverage: 94%.
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'''
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from idlelib import textview as tv
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from test.support import requires
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requires('gui')
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import unittest
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import os
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from tkinter import Tk
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from idlelib.idle_test.mock_idle import Func
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from idlelib.idle_test.mock_tk import Mbox_func
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def setUpModule():
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global root
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root = Tk()
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root.withdraw()
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def tearDownModule():
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global root
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root.update_idletasks()
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root.destroy() # Pyflakes falsely sees root as undefined.
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del root
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class TV(tv.TextViewer): # Used in TextViewTest.
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transient = Func()
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grab_set = Func()
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wait_window = Func()
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class TextViewTest(unittest.TestCase):
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def setUp(self):
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TV.transient.__init__()
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TV.grab_set.__init__()
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TV.wait_window.__init__()
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def test_init_modal(self):
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view = TV(root, 'Title', 'test text')
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self.assertTrue(TV.transient.called)
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self.assertTrue(TV.grab_set.called)
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self.assertTrue(TV.wait_window.called)
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view.Ok()
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def test_init_nonmodal(self):
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view = TV(root, 'Title', 'test text', modal=False)
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self.assertFalse(TV.transient.called)
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self.assertFalse(TV.grab_set.called)
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self.assertFalse(TV.wait_window.called)
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view.Ok()
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def test_ok(self):
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view = TV(root, 'Title', 'test text', modal=False)
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view.destroy = Func()
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view.Ok()
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self.assertTrue(view.destroy.called)
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del view.destroy # Unmask real function.
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view.destroy()
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class ViewFunctionTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.orig_error = tv.showerror
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tv.showerror = Mbox_func()
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@classmethod
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def tearDownClass(cls):
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tv.showerror = cls.orig_error
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del cls.orig_error
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def test_view_text(self):
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# If modal True, get tk error 'can't invoke "event" command'.
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view = tv.view_text(root, 'Title', 'test text', modal=False)
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self.assertIsInstance(view, tv.TextViewer)
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view.Ok()
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def test_view_file(self):
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test_dir = os.path.dirname(__file__)
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testfile = os.path.join(test_dir, 'test_textview.py')
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view = tv.view_file(root, 'Title', testfile, modal=False)
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self.assertIsInstance(view, tv.TextViewer)
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self.assertIn('Test', view.textView.get('1.0', '1.end'))
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view.Ok()
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# Mock showerror will be used; view_file will return None.
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testfile = os.path.join(test_dir, '../notthere.py')
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view = tv.view_file(root, 'Title', testfile, modal=False)
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self.assertIsNone(view)
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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