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"Test zzdummy, coverage 100%."
from idlelib import zzdummy
import unittest
from test.support import requires
from tkinter import Tk, Text
from unittest import mock
from idlelib import config
from idlelib import editor
from idlelib import format
usercfg = zzdummy.idleConf.userCfg
testcfg = {
'main': config.IdleUserConfParser(''),
'highlight': config.IdleUserConfParser(''),
'keys': config.IdleUserConfParser(''),
'extensions': config.IdleUserConfParser(''),
}
code_sample = """\
class C1:
# Class comment.
def __init__(self, a, b):
self.a = a
self.b = b
"""
class DummyEditwin:
get_selection_indices = editor.EditorWindow.get_selection_indices
def __init__(self, root, text):
self.root = root
self.top = root
self.text = text
self.fregion = format.FormatRegion(self)
self.text.undo_block_start = mock.Mock()
self.text.undo_block_stop = mock.Mock()
class ZZDummyTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
root = cls.root = Tk()
root.withdraw()
text = cls.text = Text(cls.root)
cls.editor = DummyEditwin(root, text)
zzdummy.idleConf.userCfg = testcfg
@classmethod
def tearDownClass(cls):
zzdummy.idleConf.userCfg = usercfg
del cls.editor, cls.text
cls.root.update_idletasks()
for id in cls.root.tk.call('after', 'info'):
cls.root.after_cancel(id) # Need for EditorWindow.
cls.root.destroy()
del cls.root
def setUp(self):
text = self.text
text.insert('1.0', code_sample)
text.undo_block_start.reset_mock()
text.undo_block_stop.reset_mock()
zz = self.zz = zzdummy.ZzDummy(self.editor)
zzdummy.ZzDummy.ztext = '# ignore #'
def tearDown(self):
self.text.delete('1.0', 'end')
del self.zz
def checklines(self, text, value):
# Verify that there are lines being checked.
end_line = int(float(text.index('end')))
# Check each line for the starting text.
actual = []
for line in range(1, end_line):
txt = text.get(f'{line}.0', f'{line}.end')
actual.append(txt.startswith(value))
return actual
def test_init(self):
zz = self.zz
self.assertEqual(zz.editwin, self.editor)
self.assertEqual(zz.text, self.editor.text)
def test_reload(self):
self.assertEqual(self.zz.ztext, '# ignore #')
testcfg['extensions'].SetOption('ZzDummy', 'z-text', 'spam')
zzdummy.ZzDummy.reload()
self.assertEqual(self.zz.ztext, 'spam')
def test_z_in_event(self):
eq = self.assertEqual
zz = self.zz
text = zz.text
eq(self.zz.ztext, '# ignore #')
# No lines have the leading text.
expected = [False, False, False, False, False, False, False]
actual = self.checklines(text, zz.ztext)
eq(expected, actual)
text.tag_add('sel', '2.0', '4.end')
eq(zz.z_in_event(), 'break')
expected = [False, True, True, True, False, False, False]
actual = self.checklines(text, zz.ztext)
eq(expected, actual)
text.undo_block_start.assert_called_once()
text.undo_block_stop.assert_called_once()
def test_z_out_event(self):
eq = self.assertEqual
zz = self.zz
text = zz.text
eq(self.zz.ztext, '# ignore #')
# Prepend text.
text.tag_add('sel', '2.0', '5.end')
zz.z_in_event()
text.undo_block_start.reset_mock()
text.undo_block_stop.reset_mock()
# Select a few lines to remove text.
text.tag_remove('sel', '1.0', 'end')
text.tag_add('sel', '3.0', '4.end')
eq(zz.z_out_event(), 'break')
expected = [False, True, False, False, True, False, False]
actual = self.checklines(text, zz.ztext)
eq(expected, actual)
text.undo_block_start.assert_called_once()
text.undo_block_stop.assert_called_once()
def test_roundtrip(self):
# Insert and remove to all code should give back original text.
zz = self.zz
text = zz.text
text.tag_add('sel', '1.0', 'end-1c')
zz.z_in_event()
zz.z_out_event()
self.assertEqual(text.get('1.0', 'end-1c'), code_sample)
if __name__ == '__main__':
unittest.main(verbosity=2)
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