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 sys import modules
from test.support import captured_stderr
from tkinter import Tk
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.
idleConf = config.idleConf
usercfg = idleConf.userCfg
testcfg = {}
usermain = testcfg['main'] = config.IdleUserConfParser('') # filename
userhigh = testcfg['highlight'] = config.IdleUserConfParser('')
userkeys = testcfg['keys'] = config.IdleUserConfParser('')
def setUpModule():
idleConf.userCfg = testcfg
def tearDownModule():
idleConf.userCfg = testcfg
class CurrentColorKeysTest(unittest.TestCase):
"""Test correct scenarios for colorkeys and wrap functions.
The 5 correct patterns are possible results of config dialog.
"""
colorkeys = idleConf.current_colors_and_keys
def test_old_default(self):
# name2 must be blank
usermain.read_string('''
[Theme]
default= 1
''')
self.assertEqual(self.colorkeys('Theme'), 'IDLE Classic')
usermain['Theme']['name'] = 'IDLE New'
self.assertEqual(self.colorkeys('Theme'), 'IDLE New')
usermain['Theme']['name'] = 'non-default' # error
self.assertEqual(self.colorkeys('Theme'), 'IDLE Classic')
usermain.remove_section('Theme')
def test_new_default(self):
# name2 overrides name
usermain.read_string('''
[Theme]
default= 1
name= IDLE New
name2= IDLE Dark
''')
self.assertEqual(self.colorkeys('Theme'), 'IDLE Dark')
usermain['Theme']['name2'] = 'non-default' # error
self.assertEqual(self.colorkeys('Theme'), 'IDLE Classic')
usermain.remove_section('Theme')
def test_user_override(self):
# name2 does not matter
usermain.read_string('''
[Theme]
default= 0
name= Custom Dark
''') # error until set userhigh
self.assertEqual(self.colorkeys('Theme'), 'IDLE Classic')
userhigh.read_string('[Custom Dark]\na=b')
self.assertEqual(self.colorkeys('Theme'), 'Custom Dark')
usermain['Theme']['name2'] = 'IDLE Dark'
self.assertEqual(self.colorkeys('Theme'), 'Custom Dark')
usermain.remove_section('Theme')
userhigh.remove_section('Custom Dark')
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)