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test_colorizer.py
"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)
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