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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
README.txt	5.49 KB	-rw-r--r--
__init__.py	650 B	-rw-r--r--
htest.py	13.48 KB	-rw-r--r--
mock_idle.py	1.54 KB	-rw-r--r--
mock_tk.py	11.35 KB	-rw-r--r--
test_autocomplete.py	4.8 KB	-rw-r--r--
test_autoexpand.py	4.02 KB	-rw-r--r--
test_calltips.py	6.49 KB	-rw-r--r--
test_config_help.py	3.48 KB	-rw-r--r--
test_config_name.py	2.34 KB	-rw-r--r--
test_configdialog.py	834 B	-rw-r--r--
test_delegator.py	1.5 KB	-rw-r--r--
test_editmenu.py	2.41 KB	-rw-r--r--
test_editor.py	586 B	-rw-r--r--
test_formatparagraph.py	14 KB	-rw-r--r--
test_grep.py	2.61 KB	-rw-r--r--
test_help_about.py	1.53 KB	-rw-r--r--
test_hyperparser.py	8.88 KB	-rw-r--r--
test_idlehistory.py	5.36 KB	-rw-r--r--
test_io.py	8.17 KB	-rw-r--r--
test_parenmatch.py	3.48 KB	-rw-r--r--
test_pathbrowser.py	882 B	-rw-r--r--
test_percolator.py	3.96 KB	-rw-r--r--
test_replacedialog.py	8.11 KB	-rw-r--r--
test_rstrip.py	1.58 KB	-rw-r--r--
test_searchdialog.py	2.35 KB	-rw-r--r--
test_searchdialogbase.py	5.73 KB	-rw-r--r--
test_searchengine.py	11.25 KB	-rw-r--r--
test_text.py	6.58 KB	-rw-r--r--
test_textview.py	2.83 KB	-rw-r--r--
test_undodelegator.py	4.19 KB	-rw-r--r--
test_warning.py	2.69 KB	-rw-r--r--
test_widgetredir.py	4.1 KB	-rw-r--r--

Code Editor : test_undodelegator.py

"""Unittest for UndoDelegator in idlelib.UndoDelegator.

Coverage about 80% (retest).
"""
from test.support import requires
requires('gui')

import unittest
from unittest.mock import Mock
from tkinter import Text, Tk
from idlelib.UndoDelegator import UndoDelegator
from idlelib.Percolator import Percolator

class UndoDelegatorTest(unittest.TestCase):

@classmethod
    def setUpClass(cls):
        cls.root = Tk()
        cls.text = Text(cls.root)
        cls.percolator = Percolator(cls.text)

@classmethod
    def tearDownClass(cls):
        cls.percolator.redir.close()
        del cls.percolator, cls.text
        cls.root.destroy()
        del cls.root

def setUp(self):
        self.delegator = UndoDelegator()
        self.percolator.insertfilter(self.delegator)
        self.delegator.bell = Mock(wraps=self.delegator.bell)

def tearDown(self):
        self.percolator.removefilter(self.delegator)
        self.text.delete('1.0', 'end')
        self.delegator.resetcache()

def test_undo_event(self):
        text = self.text

text.insert('insert', 'foobar')
        text.insert('insert', 'h')
        text.event_generate('<<undo>>')
        self.assertEqual(text.get('1.0', 'end'), '\n')

text.insert('insert', 'foo')
        text.insert('insert', 'bar')
        text.delete('1.2', '1.4')
        text.insert('insert', 'hello')
        text.event_generate('<<undo>>')
        self.assertEqual(text.get('1.0', '1.4'), 'foar')
        text.event_generate('<<undo>>')
        self.assertEqual(text.get('1.0', '1.6'), 'foobar')
        text.event_generate('<<undo>>')
        self.assertEqual(text.get('1.0', '1.3'), 'foo')
        text.event_generate('<<undo>>')
        self.delegator.undo_event('event')
        self.assertTrue(self.delegator.bell.called)

def test_redo_event(self):
        text = self.text

text.insert('insert', 'foo')
        text.insert('insert', 'bar')
        text.delete('1.0', '1.3')
        text.event_generate('<<undo>>')
        text.event_generate('<<redo>>')
        self.assertEqual(text.get('1.0', '1.3'), 'bar')
        text.event_generate('<<redo>>')
        self.assertTrue(self.delegator.bell.called)

def test_dump_event(self):
        """
        Dump_event cannot be tested directly without changing
        environment variables. So, test statements in dump_event
        indirectly
        """
        text = self.text
        d = self.delegator

text.insert('insert', 'foo')
        text.insert('insert', 'bar')
        text.delete('1.2', '1.4')
        self.assertTupleEqual((d.pointer, d.can_merge), (3, True))
        text.event_generate('<<undo>>')
        self.assertTupleEqual((d.pointer, d.can_merge), (2, False))

def test_get_set_saved(self):
        # test the getter method get_saved
        # test the setter method set_saved
        # indirectly test check_saved
        d = self.delegator

self.assertTrue(d.get_saved())
        self.text.insert('insert', 'a')
        self.assertFalse(d.get_saved())
        d.saved_change_hook = Mock()

d.set_saved(True)
        self.assertEqual(d.pointer, d.saved)
        self.assertTrue(d.saved_change_hook.called)

d.set_saved(False)
        self.assertEqual(d.saved, -1)
        self.assertTrue(d.saved_change_hook.called)

def test_undo_start_stop(self):
        # test the undo_block_start and undo_block_stop methods
        text = self.text

text.insert('insert', 'foo')
        self.delegator.undo_block_start()
        text.insert('insert', 'bar')
        text.insert('insert', 'bar')
        self.delegator.undo_block_stop()
        self.assertEqual(text.get('1.0', '1.3'), 'foo')

# test another code path
        self.delegator.undo_block_start()
        text.insert('insert', 'bar')
        self.delegator.undo_block_stop()
        self.assertEqual(text.get('1.0', '1.3'), 'foo')

def test_addcmd(self):
        text = self.text
        # when number of undo operations exceeds max_undo
        self.delegator.max_undo = max_undo = 10
        for i in range(max_undo + 10):
            text.insert('insert', 'foo')
            self.assertLessEqual(len(self.delegator.undolist), max_undo)

if __name__ == '__main__':
    unittest.main(verbosity=2, exit=False)

${this.title}

Code Editor : test_undodelegator.py