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"Test colorizer, coverage 93%."
from idlelib import colorizer
from test.support import requires
import unittest
from unittest import mock
from functools import partial
from tkinter import Tk, Text
from idlelib import config
from idlelib.percolator import Percolator
usercfg = colorizer.idleConf.userCfg
testcfg = {
'main': config.IdleUserConfParser(''),
'highlight': config.IdleUserConfParser(''),
'keys': config.IdleUserConfParser(''),
'extensions': config.IdleUserConfParser(''),
}
source = (
"if True: int ('1') # keyword, builtin, string, comment\n"
"elif False: print(0) # 'string' in comment\n"
"else: float(None) # if in comment\n"
"if iF + If + IF: 'keyword matching must respect case'\n"
"if'': x or'' # valid string-keyword no-space combinations\n"
"async def f(): await g()\n"
"'x', '''x''', \"x\", \"\"\"x\"\"\"\n"
)
def setUpModule():
colorizer.idleConf.userCfg = testcfg
def tearDownModule():
colorizer.idleConf.userCfg = usercfg
class FunctionTest(unittest.TestCase):
def test_any(self):
self.assertEqual(colorizer.any('test', ('a', 'b', 'cd')),
'(?P<test>a|b|cd)')
def test_make_pat(self):
# Tested in more detail by testing prog.
self.assertTrue(colorizer.make_pat())
def test_prog(self):
prog = colorizer.prog
eq = self.assertEqual
line = 'def f():\n print("hello")\n'
m = prog.search(line)
eq(m.groupdict()['KEYWORD'], 'def')
m = prog.search(line, m.end())
eq(m.groupdict()['SYNC'], '\n')
m = prog.search(line, m.end())
eq(m.groupdict()['BUILTIN'], 'print')
m = prog.search(line, m.end())
eq(m.groupdict()['STRING'], '"hello"')
m = prog.search(line, m.end())
eq(m.groupdict()['SYNC'], '\n')
def test_idprog(self):
idprog = colorizer.idprog
m = idprog.match('nospace')
self.assertIsNone(m)
m = idprog.match(' space')
self.assertEqual(m.group(0), ' space')
class ColorConfigTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
root = cls.root = Tk()
root.withdraw()
cls.text = Text(root)
@classmethod
def tearDownClass(cls):
del cls.text
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
def test_color_config(self):
text = self.text
eq = self.assertEqual
colorizer.color_config(text)
# Uses IDLE Classic theme as default.
eq(text['background'], '#ffffff')
eq(text['foreground'], '#000000')
eq(text['selectbackground'], 'gray')
eq(text['selectforeground'], '#000000')
eq(text['insertbackground'], 'black')
eq(text['inactiveselectbackground'], 'gray')
class ColorDelegatorInstantiationTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
root = cls.root = Tk()
root.withdraw()
text = cls.text = Text(root)
@classmethod
def tearDownClass(cls):
del cls.text
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
def setUp(self):
self.color = colorizer.ColorDelegator()
def tearDown(self):
self.color.close()
self.text.delete('1.0', 'end')
self.color.resetcache()
del self.color
def test_init(self):
color = self.color
self.assertIsInstance(color, colorizer.ColorDelegator)
def test_init_state(self):
# init_state() is called during the instantiation of
# ColorDelegator in setUp().
color = self.color
self.assertIsNone(color.after_id)
self.assertTrue(color.allow_colorizing)
self.assertFalse(color.colorizing)
self.assertFalse(color.stop_colorizing)
class ColorDelegatorTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
root = cls.root = Tk()
root.withdraw()
text = cls.text = Text(root)
cls.percolator = Percolator(text)
# Delegator stack = [Delegator(text)]
@classmethod
def tearDownClass(cls):
cls.percolator.redir.close()
del cls.percolator, cls.text
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
def setUp(self):
self.color = colorizer.ColorDelegator()
self.percolator.insertfilter(self.color)
# Calls color.setdelegate(Delegator(text)).
def tearDown(self):
self.color.close()
self.percolator.removefilter(self.color)
self.text.delete('1.0', 'end')
self.color.resetcache()
del self.color
def test_setdelegate(self):
# Called in setUp when filter is attached to percolator.
color = self.color
self.assertIsInstance(color.delegate, colorizer.Delegator)
# It is too late to mock notify_range, so test side effect.
self.assertEqual(self.root.tk.call(
'after', 'info', color.after_id)[1], 'timer')
def test_LoadTagDefs(self):
highlight = partial(config.idleConf.GetHighlight, theme='IDLE Classic')
for tag, colors in self.color.tagdefs.items():
with self.subTest(tag=tag):
self.assertIn('background', colors)
self.assertIn('foreground', colors)
if tag not in ('SYNC', 'TODO'):
self.assertEqual(colors, highlight(element=tag.lower()))
def test_config_colors(self):
text = self.text
highlight = partial(config.idleConf.GetHighlight, theme='IDLE Classic')
for tag in self.color.tagdefs:
for plane in ('background', 'foreground'):
with self.subTest(tag=tag, plane=plane):
if tag in ('SYNC', 'TODO'):
self.assertEqual(text.tag_cget(tag, plane), '')
else:
self.assertEqual(text.tag_cget(tag, plane),
highlight(element=tag.lower())[plane])
# 'sel' is marked as the highest priority.
self.assertEqual(text.tag_names()[-1], 'sel')
@mock.patch.object(colorizer.ColorDelegator, 'notify_range')
def test_insert(self, mock_notify):
text = self.text
# Initial text.
text.insert('insert', 'foo')
self.assertEqual(text.get('1.0', 'end'), 'foo\n')
mock_notify.assert_called_with('1.0', '1.0+3c')
# Additional text.
text.insert('insert', 'barbaz')
self.assertEqual(text.get('1.0', 'end'), 'foobarbaz\n')
mock_notify.assert_called_with('1.3', '1.3+6c')
@mock.patch.object(colorizer.ColorDelegator, 'notify_range')
def test_delete(self, mock_notify):
text = self.text
# Initialize text.
text.insert('insert', 'abcdefghi')
self.assertEqual(text.get('1.0', 'end'), 'abcdefghi\n')
# Delete single character.
text.delete('1.7')
self.assertEqual(text.get('1.0', 'end'), 'abcdefgi\n')
mock_notify.assert_called_with('1.7')
# Delete multiple characters.
text.delete('1.3', '1.6')
self.assertEqual(text.get('1.0', 'end'), 'abcgi\n')
mock_notify.assert_called_with('1.3')
def test_notify_range(self):
text = self.text
color = self.color
eq = self.assertEqual
# Colorizing already scheduled.
save_id = color.after_id
eq(self.root.tk.call('after', 'info', save_id)[1], 'timer')
self.assertFalse(color.colorizing)
self.assertFalse(color.stop_colorizing)
self.assertTrue(color.allow_colorizing)
# Coloring scheduled and colorizing in progress.
color.colorizing = True
color.notify_range('1.0', 'end')
self.assertFalse(color.stop_colorizing)
eq(color.after_id, save_id)
# No colorizing scheduled and colorizing in progress.
text.after_cancel(save_id)
color.after_id = None
color.notify_range('1.0', '1.0+3c')
self.assertTrue(color.stop_colorizing)
self.assertIsNotNone(color.after_id)
eq(self.root.tk.call('after', 'info', color.after_id)[1], 'timer')
# New event scheduled.
self.assertNotEqual(color.after_id, save_id)
# No colorizing scheduled and colorizing off.
text.after_cancel(color.after_id)
color.after_id = None
color.allow_colorizing = False
color.notify_range('1.4', '1.4+10c')
# Nothing scheduled when colorizing is off.
self.assertIsNone(color.after_id)
def test_toggle_colorize_event(self):
color = self.color
eq = self.assertEqual
# Starts with colorizing allowed and scheduled.
self.assertFalse(color.colorizing)
self.assertFalse(color.stop_colorizing)
self.assertTrue(color.allow_colorizing)
eq(self.root.tk.call('after', 'info', color.after_id)[1], 'timer')
# Toggle colorizing off.
color.toggle_colorize_event()
self.assertIsNone(color.after_id)
self.assertFalse(color.colorizing)
self.assertFalse(color.stop_colorizing)
self.assertFalse(color.allow_colorizing)
# Toggle on while colorizing in progress (doesn't add timer).
color.colorizing = True
color.toggle_colorize_event()
self.assertIsNone(color.after_id)
self.assertTrue(color.colorizing)
self.assertFalse(color.stop_colorizing)
self.assertTrue(color.allow_colorizing)
# Toggle off while colorizing in progress.
color.toggle_colorize_event()
self.assertIsNone(color.after_id)
self.assertTrue(color.colorizing)
self.assertTrue(color.stop_colorizing)
self.assertFalse(color.allow_colorizing)
# Toggle on while colorizing not in progress.
color.colorizing = False
color.toggle_colorize_event()
eq(self.root.tk.call('after', 'info', color.after_id)[1], 'timer')
self.assertFalse(color.colorizing)
self.assertTrue(color.stop_colorizing)
self.assertTrue(color.allow_colorizing)
@mock.patch.object(colorizer.ColorDelegator, 'recolorize_main')
def test_recolorize(self, mock_recmain):
text = self.text
color = self.color
eq = self.assertEqual
# Call recolorize manually and not scheduled.
text.after_cancel(color.after_id)
# No delegate.
save_delegate = color.delegate
color.delegate = None
color.recolorize()
mock_recmain.assert_not_called()
color.delegate = save_delegate
# Toggle off colorizing.
color.allow_colorizing = False
color.recolorize()
mock_recmain.assert_not_called()
color.allow_colorizing = True
# Colorizing in progress.
color.colorizing = True
color.recolorize()
mock_recmain.assert_not_called()
color.colorizing = False
# Colorizing is done, but not completed, so rescheduled.
color.recolorize()
self.assertFalse(color.stop_colorizing)
self.assertFalse(color.colorizing)
mock_recmain.assert_called()
eq(mock_recmain.call_count, 1)
# Rescheduled when TODO tag still exists.
eq(self.root.tk.call('after', 'info', color.after_id)[1], 'timer')
# No changes to text, so no scheduling added.
text.tag_remove('TODO', '1.0', 'end')
color.recolorize()
self.assertFalse(color.stop_colorizing)
self.assertFalse(color.colorizing)
mock_recmain.assert_called()
eq(mock_recmain.call_count, 2)
self.assertIsNone(color.after_id)
@mock.patch.object(colorizer.ColorDelegator, 'notify_range')
def test_recolorize_main(self, mock_notify):
text = self.text
color = self.color
eq = self.assertEqual
text.insert('insert', source)
expected = (('1.0', ('KEYWORD',)), ('1.2', ()), ('1.3', ('KEYWORD',)),
('1.7', ()), ('1.9', ('BUILTIN',)), ('1.14', ('STRING',)),
('1.19', ('COMMENT',)),
('2.1', ('KEYWORD',)), ('2.18', ()), ('2.25', ('COMMENT',)),
('3.6', ('BUILTIN',)), ('3.12', ('KEYWORD',)), ('3.21', ('COMMENT',)),
('4.0', ('KEYWORD',)), ('4.3', ()), ('4.6', ()),
('5.2', ('STRING',)), ('5.8', ('KEYWORD',)), ('5.10', ('STRING',)),
('6.0', ('KEYWORD',)), ('6.10', ('DEFINITION',)), ('6.11', ()),
('7.0', ('STRING',)), ('7.4', ()), ('7.5', ('STRING',)),
('7.12', ()), ('7.14', ('STRING',)),
# SYNC at the end of every line.
('1.55', ('SYNC',)), ('2.50', ('SYNC',)), ('3.34', ('SYNC',)),
)
# Nothing marked to do therefore no tags in text.
text.tag_remove('TODO', '1.0', 'end')
color.recolorize_main()
for tag in text.tag_names():
with self.subTest(tag=tag):
eq(text.tag_ranges(tag), ())
# Source marked for processing.
text.tag_add('TODO', '1.0', 'end')
# Check some indexes.
color.recolorize_main()
for index, expected_tags in expected:
with self.subTest(index=index):
eq(text.tag_names(index), expected_tags)
# Check for some tags for ranges.
eq(text.tag_nextrange('TODO', '1.0'), ())
eq(text.tag_nextrange('KEYWORD', '1.0'), ('1.0', '1.2'))
eq(text.tag_nextrange('COMMENT', '2.0'), ('2.22', '2.43'))
eq(text.tag_nextrange('SYNC', '2.0'), ('2.43', '3.0'))
eq(text.tag_nextrange('STRING', '2.0'), ('4.17', '4.53'))
eq(text.tag_nextrange('STRING', '7.0'), ('7.0', '7.3'))
eq(text.tag_nextrange('STRING', '7.3'), ('7.5', '7.12'))
eq(text.tag_nextrange('STRING', '7.12'), ('7.14', '7.17'))
eq(text.tag_nextrange('STRING', '7.17'), ('7.19', '7.26'))
eq(text.tag_nextrange('SYNC', '7.0'), ('7.26', '9.0'))
@mock.patch.object(colorizer.ColorDelegator, 'recolorize')
@mock.patch.object(colorizer.ColorDelegator, 'notify_range')
def test_removecolors(self, mock_notify, mock_recolorize):
text = self.text
color = self.color
text.insert('insert', source)
color.recolorize_main()
# recolorize_main doesn't add these tags.
text.tag_add("ERROR", "1.0")
text.tag_add("TODO", "1.0")
text.tag_add("hit", "1.0")
for tag in color.tagdefs:
with self.subTest(tag=tag):
self.assertNotEqual(text.tag_ranges(tag), ())
color.removecolors()
for tag in color.tagdefs:
with self.subTest(tag=tag):
self.assertEqual(text.tag_ranges(tag), ())
if __name__ == '__main__':
unittest.main(verbosity=2)
........