flake8/tests/unit/test_option_manager.py
2016-01-09 21:20:20 -06:00

114 lines
3.9 KiB
Python

"""Unit tests for flake.options.manager.OptionManager."""
import optparse
import os
import pytest
from flake8.options import manager
@pytest.fixture
def optmanager():
return manager.OptionManager(prog='flake8', version='3.0.0b1')
def test_option_manager_creates_option_parser(optmanager):
"""Verify that a new manager creates a new parser."""
assert optmanager.parser is not None
assert isinstance(optmanager.parser, optparse.OptionParser) is True
def test_add_option_short_option_only(optmanager):
"""Verify the behaviour of adding a short-option only."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('-s', help='Test short opt')
assert optmanager.options[0].short_option_name == '-s'
def test_add_option_long_option_only(optmanager):
"""Verify the behaviour of adding a long-option only."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('--long', help='Test long opt')
assert optmanager.options[0].short_option_name is None
assert optmanager.options[0].long_option_name == '--long'
def test_add_short_and_long_option_names(optmanager):
"""Verify the behaviour of using both short and long option names."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('-b', '--both', help='Test both opts')
assert optmanager.options[0].short_option_name == '-b'
assert optmanager.options[0].long_option_name == '--both'
def test_add_option_with_custom_args(optmanager):
"""Verify that add_option handles custom Flake8 parameters."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('--parse', parse_from_config=True)
optmanager.add_option('--commas', comma_separated_list=True)
optmanager.add_option('--files', normalize_paths=True)
attrs = ['parse_from_config', 'comma_separated_list', 'normalize_paths']
for option, attr in zip(optmanager.options, attrs):
assert getattr(option, attr) is True
def test_parse_args_normalize_path(optmanager):
"""Show that parse_args handles path normalization."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('--config', normalize_paths=True)
options, args = optmanager.parse_args(['--config', '../config.ini'])
assert options.config == os.path.abspath('../config.ini')
def test_parse_args_handles_comma_separated_defaults(optmanager):
"""Show that parse_args handles defaults that are comma-separated."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('--exclude', default='E123,W234',
comma_separated_list=True)
options, args = optmanager.parse_args([])
assert options.exclude == ['E123', 'W234']
def test_parse_args_handles_comma_separated_lists(optmanager):
"""Show that parse_args handles user-specified comma-separated lists."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('--exclude', default='E123,W234',
comma_separated_list=True)
options, args = optmanager.parse_args(['--exclude', 'E201,W111,F280'])
assert options.exclude == ['E201', 'W111', 'F280']
def test_parse_args_normalize_paths(optmanager):
"""Verify parse_args normalizes a comma-separated list of paths."""
assert optmanager.options == []
assert optmanager.config_options_dict == {}
optmanager.add_option('--extra-config', normalize_paths=True,
comma_separated_list=True)
options, args = optmanager.parse_args([
'--extra-config', '../config.ini,tox.ini,flake8/some-other.cfg'
])
assert options.extra_config == [
os.path.abspath('../config.ini'),
'tox.ini',
os.path.abspath('flake8/some-other.cfg'),
]