74 lines
3.1 KiB
Python
74 lines
3.1 KiB
Python
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"""Ensure the argparse parser and Options class are in sync.
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In particular, verify that the argparse defaults are the same as the Options
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defaults, and that argparse doesn't assign any new members to the Options
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object it creates.
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"""
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import argparse
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import sys
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from mypy.test.helpers import Suite, assert_equal
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from mypy.options import Options
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from mypy.main import process_options, infer_python_executable
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class ArgSuite(Suite):
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def test_coherence(self) -> None:
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options = Options()
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_, parsed_options = process_options([], require_targets=False)
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# FIX: test this too. Requires changing working dir to avoid finding 'setup.cfg'
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options.config_file = parsed_options.config_file
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assert_equal(options.snapshot(), parsed_options.snapshot())
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def test_executable_inference(self) -> None:
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"""Test the --python-executable flag with --python-version"""
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sys_ver_str = '{ver.major}.{ver.minor}'.format(ver=sys.version_info)
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base = ['file.py'] # dummy file
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# test inference given one (infer the other)
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matching_version = base + [f'--python-version={sys_ver_str}']
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_, options = process_options(matching_version)
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assert options.python_version == sys.version_info[:2]
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assert options.python_executable == sys.executable
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matching_version = base + [f'--python-executable={sys.executable}']
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_, options = process_options(matching_version)
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assert options.python_version == sys.version_info[:2]
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assert options.python_executable == sys.executable
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# test inference given both
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matching_version = base + [f'--python-version={sys_ver_str}',
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f'--python-executable={sys.executable}']
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_, options = process_options(matching_version)
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assert options.python_version == sys.version_info[:2]
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assert options.python_executable == sys.executable
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# test that --no-site-packages will disable executable inference
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matching_version = base + [f'--python-version={sys_ver_str}',
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'--no-site-packages']
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_, options = process_options(matching_version)
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assert options.python_version == sys.version_info[:2]
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assert options.python_executable is None
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# Test setting python_version/executable from config file
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special_opts = argparse.Namespace()
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special_opts.python_executable = None
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special_opts.python_version = None
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special_opts.no_executable = None
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# first test inferring executable from version
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options = Options()
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options.python_executable = None
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options.python_version = sys.version_info[:2]
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infer_python_executable(options, special_opts)
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assert options.python_version == sys.version_info[:2]
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assert options.python_executable == sys.executable
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# then test inferring version from executable
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options = Options()
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options.python_executable = sys.executable
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infer_python_executable(options, special_opts)
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assert options.python_version == sys.version_info[:2]
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assert options.python_executable == sys.executable
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