| | "Test percolator, coverage 100%." |
| |
|
| | from idlelib.percolator import Percolator, Delegator |
| | import unittest |
| | from test.support import requires |
| | requires('gui') |
| | from tkinter import Text, Tk, END |
| |
|
| |
|
| | class MyFilter(Delegator): |
| | def __init__(self): |
| | Delegator.__init__(self, None) |
| |
|
| | def insert(self, *args): |
| | self.insert_called_with = args |
| | self.delegate.insert(*args) |
| |
|
| | def delete(self, *args): |
| | self.delete_called_with = args |
| | self.delegate.delete(*args) |
| |
|
| | def uppercase_insert(self, index, chars, tags=None): |
| | chars = chars.upper() |
| | self.delegate.insert(index, chars) |
| |
|
| | def lowercase_insert(self, index, chars, tags=None): |
| | chars = chars.lower() |
| | self.delegate.insert(index, chars) |
| |
|
| | def dont_insert(self, index, chars, tags=None): |
| | pass |
| |
|
| |
|
| | class PercolatorTest(unittest.TestCase): |
| |
|
| | @classmethod |
| | def setUpClass(cls): |
| | cls.root = Tk() |
| | cls.text = Text(cls.root) |
| |
|
| | @classmethod |
| | def tearDownClass(cls): |
| | del cls.text |
| | cls.root.destroy() |
| | del cls.root |
| |
|
| | def setUp(self): |
| | self.percolator = Percolator(self.text) |
| | self.filter_one = MyFilter() |
| | self.filter_two = MyFilter() |
| | self.percolator.insertfilter(self.filter_one) |
| | self.percolator.insertfilter(self.filter_two) |
| |
|
| | def tearDown(self): |
| | self.percolator.close() |
| | self.text.delete('1.0', END) |
| |
|
| | def test_insertfilter(self): |
| | self.assertIsNotNone(self.filter_one.delegate) |
| | self.assertEqual(self.percolator.top, self.filter_two) |
| | self.assertEqual(self.filter_two.delegate, self.filter_one) |
| | self.assertEqual(self.filter_one.delegate, self.percolator.bottom) |
| |
|
| | def test_removefilter(self): |
| | filter_three = MyFilter() |
| | self.percolator.removefilter(self.filter_two) |
| | self.assertEqual(self.percolator.top, self.filter_one) |
| | self.assertIsNone(self.filter_two.delegate) |
| |
|
| | filter_three = MyFilter() |
| | self.percolator.insertfilter(self.filter_two) |
| | self.percolator.insertfilter(filter_three) |
| | self.percolator.removefilter(self.filter_one) |
| | self.assertEqual(self.percolator.top, filter_three) |
| | self.assertEqual(filter_three.delegate, self.filter_two) |
| | self.assertEqual(self.filter_two.delegate, self.percolator.bottom) |
| | self.assertIsNone(self.filter_one.delegate) |
| |
|
| | def test_insert(self): |
| | self.text.insert('insert', 'foo') |
| | self.assertEqual(self.text.get('1.0', END), 'foo\n') |
| | self.assertTupleEqual(self.filter_one.insert_called_with, |
| | ('insert', 'foo', None)) |
| |
|
| | def test_modify_insert(self): |
| | self.filter_one.insert = self.filter_one.uppercase_insert |
| | self.text.insert('insert', 'bAr') |
| | self.assertEqual(self.text.get('1.0', END), 'BAR\n') |
| |
|
| | def test_modify_chain_insert(self): |
| | filter_three = MyFilter() |
| | self.percolator.insertfilter(filter_three) |
| | self.filter_two.insert = self.filter_two.uppercase_insert |
| | self.filter_one.insert = self.filter_one.lowercase_insert |
| | self.text.insert('insert', 'BaR') |
| | self.assertEqual(self.text.get('1.0', END), 'bar\n') |
| |
|
| | def test_dont_insert(self): |
| | self.filter_one.insert = self.filter_one.dont_insert |
| | self.text.insert('insert', 'foo bar') |
| | self.assertEqual(self.text.get('1.0', END), '\n') |
| | self.filter_one.insert = self.filter_one.dont_insert |
| | self.text.insert('insert', 'foo bar') |
| | self.assertEqual(self.text.get('1.0', END), '\n') |
| |
|
| | def test_without_filter(self): |
| | self.text.insert('insert', 'hello') |
| | self.assertEqual(self.text.get('1.0', 'end'), 'hello\n') |
| |
|
| | def test_delete(self): |
| | self.text.insert('insert', 'foo') |
| | self.text.delete('1.0', '1.2') |
| | self.assertEqual(self.text.get('1.0', END), 'o\n') |
| | self.assertTupleEqual(self.filter_one.delete_called_with, |
| | ('1.0', '1.2')) |
| |
|
| | if __name__ == '__main__': |
| | unittest.main(verbosity=2) |
| |
|
