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61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
"""Unit tests for flake8.options.manager.Option."""
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import functools
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import mock
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import pytest
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from flake8.options import manager
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def test_to_argparse():
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"""Test conversion to an argparse arguments."""
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opt = manager.Option(
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short_option_name='-t',
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long_option_name='--test',
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action='count',
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parse_from_config=True,
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normalize_paths=True,
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)
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assert opt.normalize_paths is True
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assert opt.parse_from_config is True
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args, kwargs = opt.to_argparse()
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assert args == ['-t', '--test']
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assert kwargs == {'action': 'count', 'type': mock.ANY}
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assert isinstance(kwargs['type'], functools.partial)
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def test_to_optparse():
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"""Test that .to_optparse() produces a useful error message."""
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with pytest.raises(AttributeError) as excinfo:
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manager.Option('--foo').to_optparse
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msg, = excinfo.value.args
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assert msg == 'to_optparse: flake8 now uses argparse'
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def test_to_argparse_creates_an_option_as_we_expect():
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"""Show that we pass all keyword args to argparse."""
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opt = manager.Option('-t', '--test', action='count')
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args, kwargs = opt.to_argparse()
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assert args == ['-t', '--test']
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assert kwargs == {'action': 'count'}
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def test_config_name_generation():
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"""Show that we generate the config name deterministically."""
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opt = manager.Option(long_option_name='--some-very-long-option-name',
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parse_from_config=True)
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assert opt.config_name == 'some_very_long_option_name'
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def test_config_name_needs_long_option_name():
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"""Show that we error out if the Option should be parsed from config."""
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with pytest.raises(ValueError):
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manager.Option('-s', parse_from_config=True)
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def test_dest_is_not_overridden():
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"""Show that we do not override custom destinations."""
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opt = manager.Option('-s', '--short', dest='something_not_short')
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assert opt.dest == 'something_not_short'
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