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161 lines
5 KiB
Python
161 lines
5 KiB
Python
import re
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import textwrap
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import unittest
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from collections.abc import Iterator
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from . import fixtures
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from importlib.metadata import (
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Distribution, PackageNotFoundError, distribution,
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entry_points, files, metadata, requires, version,
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)
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class APITests(
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fixtures.EggInfoPkg,
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fixtures.DistInfoPkg,
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fixtures.EggInfoFile,
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unittest.TestCase):
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version_pattern = r'\d+\.\d+(\.\d)?'
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def test_retrieves_version_of_self(self):
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pkg_version = version('egginfo-pkg')
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assert isinstance(pkg_version, str)
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assert re.match(self.version_pattern, pkg_version)
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def test_retrieves_version_of_distinfo_pkg(self):
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pkg_version = version('distinfo-pkg')
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assert isinstance(pkg_version, str)
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assert re.match(self.version_pattern, pkg_version)
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def test_for_name_does_not_exist(self):
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with self.assertRaises(PackageNotFoundError):
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distribution('does-not-exist')
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def test_for_top_level(self):
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self.assertEqual(
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distribution('egginfo-pkg').read_text('top_level.txt').strip(),
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'mod')
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def test_read_text(self):
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top_level = [
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path for path in files('egginfo-pkg')
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if path.name == 'top_level.txt'
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][0]
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self.assertEqual(top_level.read_text(), 'mod\n')
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def test_entry_points(self):
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entries = dict(entry_points()['entries'])
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ep = entries['main']
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self.assertEqual(ep.value, 'mod:main')
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self.assertEqual(ep.extras, [])
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def test_metadata_for_this_package(self):
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md = metadata('egginfo-pkg')
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assert md['author'] == 'Steven Ma'
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assert md['LICENSE'] == 'Unknown'
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assert md['Name'] == 'egginfo-pkg'
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classifiers = md.get_all('Classifier')
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assert 'Topic :: Software Development :: Libraries' in classifiers
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@staticmethod
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def _test_files(files):
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root = files[0].root
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for file in files:
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assert file.root == root
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assert not file.hash or file.hash.value
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assert not file.hash or file.hash.mode == 'sha256'
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assert not file.size or file.size >= 0
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assert file.locate().exists()
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assert isinstance(file.read_binary(), bytes)
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if file.name.endswith('.py'):
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file.read_text()
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def test_file_hash_repr(self):
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assertRegex = self.assertRegex
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util = [
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p for p in files('distinfo-pkg')
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if p.name == 'mod.py'
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][0]
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assertRegex(
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repr(util.hash),
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'<FileHash mode: sha256 value: .*>')
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def test_files_dist_info(self):
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self._test_files(files('distinfo-pkg'))
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def test_files_egg_info(self):
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self._test_files(files('egginfo-pkg'))
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def test_version_egg_info_file(self):
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self.assertEqual(version('egginfo-file'), '0.1')
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def test_requires_egg_info_file(self):
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requirements = requires('egginfo-file')
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self.assertIsNone(requirements)
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def test_requires_egg_info(self):
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deps = requires('egginfo-pkg')
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assert len(deps) == 2
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assert any(
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dep == 'wheel >= 1.0; python_version >= "2.7"'
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for dep in deps
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)
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def test_requires_dist_info(self):
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deps = requires('distinfo-pkg')
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assert len(deps) == 2
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assert all(deps)
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assert 'wheel >= 1.0' in deps
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assert "pytest; extra == 'test'" in deps
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def test_more_complex_deps_requires_text(self):
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requires = textwrap.dedent("""
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dep1
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dep2
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[:python_version < "3"]
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dep3
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[extra1]
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dep4
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[extra2:python_version < "3"]
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dep5
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""")
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deps = sorted(Distribution._deps_from_requires_text(requires))
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expected = [
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'dep1',
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'dep2',
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'dep3; python_version < "3"',
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'dep4; extra == "extra1"',
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'dep5; (python_version < "3") and extra == "extra2"',
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]
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# It's important that the environment marker expression be
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# wrapped in parentheses to avoid the following 'and' binding more
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# tightly than some other part of the environment expression.
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assert deps == expected
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class OffSysPathTests(fixtures.DistInfoPkgOffPath, unittest.TestCase):
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def test_find_distributions_specified_path(self):
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dists = Distribution.discover(path=[str(self.site_dir)])
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assert any(
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dist.metadata['Name'] == 'distinfo-pkg'
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for dist in dists
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)
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def test_distribution_at_pathlib(self):
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"""Demonstrate how to load metadata direct from a directory.
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"""
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dist_info_path = self.site_dir / 'distinfo_pkg-1.0.0.dist-info'
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dist = Distribution.at(dist_info_path)
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assert dist.version == '1.0.0'
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def test_distribution_at_str(self):
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dist_info_path = self.site_dir / 'distinfo_pkg-1.0.0.dist-info'
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dist = Distribution.at(str(dist_info_path))
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assert dist.version == '1.0.0'
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