69 lines
2.7 KiB
Python
69 lines
2.7 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import argparse
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import fixtures # type: ignore
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import typing
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import autopage
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import autopage.argparse
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class ArgumentParseTest(fixtures.TestWithFixtures):
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def setUp(self) -> None:
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patch_ap = self.useFixture(fixtures.MockPatch('autopage.AutoPager'))
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self.pager = patch_ap.mock
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self.stream = self.useFixture(fixtures.StringStream('stdout')).stream
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self.pager.return_value.__enter__.return_value = self.stream
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def test_argparse(self,
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module: typing.Any = autopage.argparse,
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color: bool = True) -> None:
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self.pager.return_value.to_terminal.return_value = color
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parser = module.ArgumentParser()
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try:
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parser.parse_args(['foo', '--help'])
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except SystemExit as exit:
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self.assertIs(self.pager.return_value.exit_code.return_value,
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exit.code)
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self.pager.assert_called_once_with(None,
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allow_color=True,
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line_buffering=False,
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reset_on_exit=False)
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self.pager.return_value.__enter__.assert_called_once()
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self.stream.seek(0)
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self.assertEqual('\033' in self.stream.read(), color)
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def test_argparse_no_color(self) -> None:
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self.test_argparse(color=False)
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def test_monkey_patch(self, color: bool = True) -> None:
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patch = self.useFixture(fixtures.MockPatch('argparse._HelpAction'))
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autopage.argparse.monkey_patch()
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self.assertIsNot(patch.mock, argparse._HelpAction)
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self.test_argparse(argparse, color)
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def test_monkey_patch_no_color(self) -> None:
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self.test_monkey_patch(color=False)
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def test_monkey_patch_context(self, color: bool = True) -> None:
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patch = self.useFixture(fixtures.MockPatch('argparse._HelpAction'))
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with autopage.argparse.monkey_patch():
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self.assertIsNot(patch.mock, argparse._HelpAction)
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self.test_argparse(argparse, color)
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self.assertIs(patch.mock, argparse._HelpAction)
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def test_monkey_patch_context_no_color(self) -> None:
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self.test_monkey_patch_context(color=False)
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