mirror of https://github.com/python/cpython.git
129 lines
4.5 KiB
Python
129 lines
4.5 KiB
Python
import json
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import os
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import sys
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import sysconfig
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import string
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import unittest
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from test.support import is_android, is_apple_mobile, is_emscripten, is_wasi
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class FormatTestsBase:
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@property
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def contents(self):
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"""Install details file contents. Should be overriden by subclasses."""
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raise NotImplementedError
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@property
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def data(self):
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"""Parsed install details file data, as a Python object."""
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return json.loads(self.contents)
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def key(self, name):
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"""Helper to fetch subsection entries.
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It takes the entry name, allowing the usage of a dot to separate the
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different subsection names (eg. specifying 'a.b.c' as the key will
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return the value of self.data['a']['b']['c']).
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"""
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value = self.data
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for part in name.split('.'):
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value = value[part]
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return value
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def test_parse(self):
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self.data
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def test_top_level_container(self):
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self.assertIsInstance(self.data, dict)
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for key, value in self.data.items():
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with self.subTest(key=key):
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if key in ('schema_version', 'base_prefix', 'base_interpreter', 'platform'):
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self.assertIsInstance(value, str)
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elif key in ('language', 'implementation', 'abi', 'suffixes', 'libpython', 'c_api', 'arbitrary_data'):
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self.assertIsInstance(value, dict)
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def test_base_prefix(self):
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self.assertIsInstance(self.key('base_prefix'), str)
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def test_base_interpreter(self):
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"""Test the base_interpreter entry.
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The generic test wants the key to be missing. If your implementation
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provides a value for it, you should override this test.
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"""
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with self.assertRaises(KeyError):
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self.key('base_interpreter')
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def test_platform(self):
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self.assertEqual(self.key('platform'), sysconfig.get_platform())
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def test_language_version(self):
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allowed_characters = string.digits + string.ascii_letters + '.'
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value = self.key('language.version')
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self.assertLessEqual(set(value), set(allowed_characters))
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self.assertTrue(sys.version.startswith(value))
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def test_language_version_info(self):
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value = self.key('language.version_info')
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self.assertEqual(len(value), sys.version_info.n_fields)
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for part_name, part_value in value.items():
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with self.subTest(part=part_name):
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self.assertEqual(part_value, getattr(sys.version_info, part_name))
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def test_implementation(self):
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for key, value in self.key('implementation').items():
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with self.subTest(part=key):
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if key == 'version':
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self.assertEqual(len(value), len(sys.implementation.version))
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for part_name, part_value in value.items():
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self.assertEqual(getattr(sys.implementation.version, part_name), part_value)
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else:
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self.assertEqual(getattr(sys.implementation, key), value)
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needs_installed_python = unittest.skipIf(
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sysconfig.is_python_build(),
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'This test can only run in an installed Python',
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)
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@unittest.skipIf(os.name != 'posix', 'Feature only implemented on POSIX right now')
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@unittest.skipIf(is_wasi or is_emscripten, 'Feature not available on WebAssembly builds')
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class CPythonBuildDetailsTests(unittest.TestCase, FormatTestsBase):
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"""Test CPython's install details file implementation."""
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@property
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def location(self):
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if sysconfig.is_python_build():
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projectdir = sysconfig.get_config_var('projectbase')
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with open(os.path.join(projectdir, 'pybuilddir.txt')) as f:
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dirname = os.path.join(projectdir, f.read())
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else:
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dirname = sysconfig.get_path('stdlib')
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return os.path.join(dirname, 'build-details.json')
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@property
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def contents(self):
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with open(self.location, 'r') as f:
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return f.read()
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@needs_installed_python
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def test_location(self):
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self.assertTrue(os.path.isfile(self.location))
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# Override generic format tests with tests for our specific implemenation.
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@needs_installed_python
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@unittest.skipIf(is_android or is_apple_mobile, 'Android and iOS run tests via a custom testbed method that changes sys.executable')
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def test_base_interpreter(self):
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value = self.key('base_interpreter')
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self.assertEqual(os.path.realpath(value), os.path.realpath(sys.executable))
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if __name__ == '__main__':
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unittest.main()
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