cpython/Lib/idlelib/idle_test/test_config.py

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'''Test idlelib.config.
Much is tested by opening config dialog live or in test_configdialog.
Coverage: 27%
'''
from test.support import captured_stderr
import unittest
from idlelib import config
# Tests should not depend on fortuitous user configurations.
# They must not affect actual user .cfg files.
# Replace user parsers with empty parsers that cannot be saved
# due to getting '' as the filename when created.
idleConf = config.idleConf
usercfg = idleConf.userCfg
testcfg = {}
usermain = testcfg['main'] = config.IdleUserConfParser('')
userhigh = testcfg['highlight'] = config.IdleUserConfParser('')
userkeys = testcfg['keys'] = config.IdleUserConfParser('')
def setUpModule():
idleConf.userCfg = testcfg
def tearDownModule():
idleConf.userCfg = usercfg
class CurrentColorKeysTest(unittest.TestCase):
""" Test colorkeys function with user config [Theme] and [Keys] patterns.
colorkeys = config.IdleConf.current_colors_and_keys
Test all patterns written by IDLE and some errors
Item 'default' should really be 'builtin' (versus 'custom).
"""
colorkeys = idleConf.current_colors_and_keys
default_theme = 'IDLE Classic'
default_keys = idleConf.default_keys()
def test_old_builtin_theme(self):
# On initial installation, user main is blank.
self.assertEqual(self.colorkeys('Theme'), self.default_theme)
# For old default, name2 must be blank.
usermain.read_string('''
[Theme]
default = True
''')
# IDLE omits 'name' for default old builtin theme.
self.assertEqual(self.colorkeys('Theme'), self.default_theme)
# IDLE adds 'name' for non-default old builtin theme.
usermain['Theme']['name'] = 'IDLE New'
self.assertEqual(self.colorkeys('Theme'), 'IDLE New')
# Erroneous non-default old builtin reverts to default.
usermain['Theme']['name'] = 'non-existent'
self.assertEqual(self.colorkeys('Theme'), self.default_theme)
usermain.remove_section('Theme')
def test_new_builtin_theme(self):
# IDLE writes name2 for new builtins.
usermain.read_string('''
[Theme]
default = True
name2 = IDLE Dark
''')
self.assertEqual(self.colorkeys('Theme'), 'IDLE Dark')
# Leftover 'name', not removed, is ignored.
usermain['Theme']['name'] = 'IDLE New'
self.assertEqual(self.colorkeys('Theme'), 'IDLE Dark')
# Erroneous non-default new builtin reverts to default.
usermain['Theme']['name2'] = 'non-existent'
self.assertEqual(self.colorkeys('Theme'), self.default_theme)
usermain.remove_section('Theme')
def test_user_override_theme(self):
# Erroneous custom name (no definition) reverts to default.
usermain.read_string('''
[Theme]
default = False
name = Custom Dark
''')
self.assertEqual(self.colorkeys('Theme'), self.default_theme)
# Custom name is valid with matching Section name.
userhigh.read_string('[Custom Dark]\na=b')
self.assertEqual(self.colorkeys('Theme'), 'Custom Dark')
# Name2 is ignored.
usermain['Theme']['name2'] = 'non-existent'
self.assertEqual(self.colorkeys('Theme'), 'Custom Dark')
usermain.remove_section('Theme')
userhigh.remove_section('Custom Dark')
def test_old_builtin_keys(self):
# On initial installation, user main is blank.
self.assertEqual(self.colorkeys('Keys'), self.default_keys)
# For old default, name2 must be blank, name is always used.
usermain.read_string('''
[Keys]
default = True
name = IDLE Classic Unix
''')
self.assertEqual(self.colorkeys('Keys'), 'IDLE Classic Unix')
# Erroneous non-default old builtin reverts to default.
usermain['Keys']['name'] = 'non-existent'
self.assertEqual(self.colorkeys('Keys'), self.default_keys)
usermain.remove_section('Keys')
def test_new_builtin_keys(self):
# IDLE writes name2 for new builtins.
usermain.read_string('''
[Keys]
default = True
name2 = IDLE Modern Unix
''')
self.assertEqual(self.colorkeys('Keys'), 'IDLE Modern Unix')
# Leftover 'name', not removed, is ignored.
usermain['Keys']['name'] = 'IDLE Classic Unix'
self.assertEqual(self.colorkeys('Keys'), 'IDLE Modern Unix')
# Erroneous non-default new builtin reverts to default.
usermain['Keys']['name2'] = 'non-existent'
self.assertEqual(self.colorkeys('Keys'), self.default_keys)
usermain.remove_section('Keys')
def test_user_override_keys(self):
# Erroneous custom name (no definition) reverts to default.
usermain.read_string('''
[Keys]
default = False
name = Custom Keys
''')
self.assertEqual(self.colorkeys('Keys'), self.default_keys)
# Custom name is valid with matching Section name.
userkeys.read_string('[Custom Keys]\na=b')
self.assertEqual(self.colorkeys('Keys'), 'Custom Keys')
# Name2 is ignored.
usermain['Keys']['name2'] = 'non-existent'
self.assertEqual(self.colorkeys('Keys'), 'Custom Keys')
usermain.remove_section('Keys')
userkeys.remove_section('Custom Keys')
class ChangesTest(unittest.TestCase):
empty = {'main':{}, 'highlight':{}, 'keys':{}, 'extensions':{}}
def load(self): # Test_add_option verifies that this works.
changes = self.changes
changes.add_option('main', 'Msec', 'mitem', 'mval')
changes.add_option('highlight', 'Hsec', 'hitem', 'hval')
changes.add_option('keys', 'Ksec', 'kitem', 'kval')
return changes
loaded = {'main': {'Msec': {'mitem': 'mval'}},
'highlight': {'Hsec': {'hitem': 'hval'}},
'keys': {'Ksec': {'kitem':'kval'}},
'extensions': {}}
def setUp(self):
self.changes = config.ConfigChanges()
def test_init(self):
self.assertEqual(self.changes, self.empty)
def test_add_option(self):
changes = self.load()
self.assertEqual(changes, self.loaded)
changes.add_option('main', 'Msec', 'mitem', 'mval')
self.assertEqual(changes, self.loaded)
def test_save_option(self): # Static function does not touch changes.
save_option = self.changes.save_option
self.assertTrue(save_option('main', 'Indent', 'what', '0'))
self.assertFalse(save_option('main', 'Indent', 'what', '0'))
self.assertEqual(usermain['Indent']['what'], '0')
self.assertTrue(save_option('main', 'Indent', 'use-spaces', '0'))
self.assertEqual(usermain['Indent']['use-spaces'], '0')
self.assertTrue(save_option('main', 'Indent', 'use-spaces', '1'))
self.assertFalse(usermain.has_option('Indent', 'use-spaces'))
usermain.remove_section('Indent')
def test_save_added(self):
changes = self.load()
changes.save_all()
self.assertEqual(usermain['Msec']['mitem'], 'mval')
self.assertEqual(userhigh['Hsec']['hitem'], 'hval')
self.assertEqual(userkeys['Ksec']['kitem'], 'kval')
usermain.remove_section('Msec')
userhigh.remove_section('Hsec')
userkeys.remove_section('Ksec')
def test_save_help(self):
# Any change to HelpFiles overwrites entire section.
changes = self.changes
changes.save_option('main', 'HelpFiles', 'IDLE', 'idledoc')
changes.add_option('main', 'HelpFiles', 'ELDI', 'codeldi')
changes.save_all()
self.assertFalse(usermain.has_option('HelpFiles', 'IDLE'))
self.assertTrue(usermain.has_option('HelpFiles', 'ELDI'))
def test_save_default(self): # Cover 2nd and 3rd false branches.
changes = self.changes
changes.add_option('main', 'Indent', 'use-spaces', '1')
# save_option returns False; cfg_type_changed remains False.
# TODO: test that save_all calls usercfg Saves.
def test_delete_section(self):
changes = self.load()
changes.delete_section('main', 'fake') # Test no exception.
self.assertEqual(changes, self.loaded) # Test nothing deleted.
for cfgtype, section in (('main', 'Msec'), ('keys', 'Ksec')):
testcfg[cfgtype].SetOption(section, 'name', 'value')
changes.delete_section(cfgtype, section)
with self.assertRaises(KeyError):
changes[cfgtype][section] # Test section gone from changes
testcfg[cfgtype][section] # and from mock userCfg.
# TODO test for save call.
def test_clear(self):
changes = self.load()
changes.clear()
self.assertEqual(changes, self.empty)
class WarningTest(unittest.TestCase):
def test_warn(self):
Equal = self.assertEqual
config._warned = set()
with captured_stderr() as stderr:
config._warn('warning', 'key')
Equal(config._warned, {('warning','key')})
Equal(stderr.getvalue(), 'warning'+'\n')
with captured_stderr() as stderr:
config._warn('warning', 'key')
Equal(stderr.getvalue(), '')
with captured_stderr() as stderr:
config._warn('warn2', 'yek')
Equal(config._warned, {('warning','key'), ('warn2','yek')})
Equal(stderr.getvalue(), 'warn2'+'\n')
if __name__ == '__main__':
unittest.main(verbosity=2)