156 lines
4.5 KiB
Python
156 lines
4.5 KiB
Python
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"Test autoexpand, coverage 100%."
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from idlelib.autoexpand import AutoExpand
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import unittest
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from test.support import requires
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from tkinter import Text, Tk
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class DummyEditwin:
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# AutoExpand.__init__ only needs .text
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def __init__(self, text):
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self.text = text
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class AutoExpandTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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requires('gui')
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cls.tk = Tk()
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cls.text = Text(cls.tk)
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cls.auto_expand = AutoExpand(DummyEditwin(cls.text))
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cls.auto_expand.bell = lambda: None
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# If mock_tk.Text._decode understood indexes 'insert' with suffixed 'linestart',
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# 'wordstart', and 'lineend', used by autoexpand, we could use the following
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# to run these test on non-gui machines (but check bell).
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## try:
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## requires('gui')
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## #raise ResourceDenied() # Uncomment to test mock.
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## except ResourceDenied:
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## from idlelib.idle_test.mock_tk import Text
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## cls.text = Text()
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## cls.text.bell = lambda: None
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## else:
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## from tkinter import Tk, Text
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## cls.tk = Tk()
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## cls.text = Text(cls.tk)
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@classmethod
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def tearDownClass(cls):
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del cls.text, cls.auto_expand
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if hasattr(cls, 'tk'):
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cls.tk.destroy()
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del cls.tk
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def tearDown(self):
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self.text.delete('1.0', 'end')
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def test_get_prevword(self):
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text = self.text
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previous = self.auto_expand.getprevword
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equal = self.assertEqual
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equal(previous(), '')
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text.insert('insert', 't')
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equal(previous(), 't')
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text.insert('insert', 'his')
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equal(previous(), 'this')
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text.insert('insert', ' ')
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equal(previous(), '')
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text.insert('insert', 'is')
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equal(previous(), 'is')
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text.insert('insert', '\nsample\nstring')
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equal(previous(), 'string')
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text.delete('3.0', 'insert')
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equal(previous(), '')
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text.delete('1.0', 'end')
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equal(previous(), '')
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def test_before_only(self):
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previous = self.auto_expand.getprevword
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expand = self.auto_expand.expand_word_event
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equal = self.assertEqual
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self.text.insert('insert', 'ab ac bx ad ab a')
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equal(self.auto_expand.getwords(), ['ab', 'ad', 'ac', 'a'])
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expand('event')
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equal(previous(), 'ab')
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expand('event')
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equal(previous(), 'ad')
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expand('event')
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equal(previous(), 'ac')
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expand('event')
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equal(previous(), 'a')
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def test_after_only(self):
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# Also add punctuation 'noise' that should be ignored.
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text = self.text
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previous = self.auto_expand.getprevword
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expand = self.auto_expand.expand_word_event
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equal = self.assertEqual
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text.insert('insert', 'a, [ab] ac: () bx"" cd ac= ad ya')
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text.mark_set('insert', '1.1')
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equal(self.auto_expand.getwords(), ['ab', 'ac', 'ad', 'a'])
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expand('event')
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equal(previous(), 'ab')
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expand('event')
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equal(previous(), 'ac')
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expand('event')
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equal(previous(), 'ad')
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expand('event')
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equal(previous(), 'a')
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def test_both_before_after(self):
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text = self.text
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previous = self.auto_expand.getprevword
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expand = self.auto_expand.expand_word_event
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equal = self.assertEqual
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text.insert('insert', 'ab xy yz\n')
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text.insert('insert', 'a ac by ac')
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text.mark_set('insert', '2.1')
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equal(self.auto_expand.getwords(), ['ab', 'ac', 'a'])
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expand('event')
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equal(previous(), 'ab')
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expand('event')
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equal(previous(), 'ac')
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expand('event')
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equal(previous(), 'a')
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def test_other_expand_cases(self):
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text = self.text
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expand = self.auto_expand.expand_word_event
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equal = self.assertEqual
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# no expansion candidate found
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equal(self.auto_expand.getwords(), [])
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equal(expand('event'), 'break')
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text.insert('insert', 'bx cy dz a')
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equal(self.auto_expand.getwords(), [])
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# reset state by successfully expanding once
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# move cursor to another position and expand again
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text.insert('insert', 'ac xy a ac ad a')
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text.mark_set('insert', '1.7')
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expand('event')
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initial_state = self.auto_expand.state
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text.mark_set('insert', '1.end')
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expand('event')
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new_state = self.auto_expand.state
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self.assertNotEqual(initial_state, new_state)
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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