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Editing: test_version.py

"""Tests for distutils.version."""

import distutils
from distutils.version import LooseVersion, StrictVersion

import pytest

@pytest.fixture(autouse=True)
def suppress_deprecation():
    with distutils.version.suppress_known_deprecation():
        yield

class TestVersion:
    def test_prerelease(self):
        version = StrictVersion('1.2.3a1')
        assert version.version == (1, 2, 3)
        assert version.prerelease == ('a', 1)
        assert str(version) == '1.2.3a1'

version = StrictVersion('1.2.0')
        assert str(version) == '1.2'

def test_cmp_strict(self):
        versions = (
            ('1.5.1', '1.5.2b2', -1),
            ('161', '3.10a', ValueError),
            ('8.02', '8.02', 0),
            ('3.4j', '1996.07.12', ValueError),
            ('3.2.pl0', '3.1.1.6', ValueError),
            ('2g6', '11g', ValueError),
            ('0.9', '2.2', -1),
            ('1.2.1', '1.2', 1),
            ('1.1', '1.2.2', -1),
            ('1.2', '1.1', 1),
            ('1.2.1', '1.2.2', -1),
            ('1.2.2', '1.2', 1),
            ('1.2', '1.2.2', -1),
            ('0.4.0', '0.4', 0),
            ('1.13++', '5.5.kw', ValueError),
        )

for v1, v2, wanted in versions:
            try:
                res = StrictVersion(v1)._cmp(StrictVersion(v2))
            except ValueError:
                if wanted is ValueError:
                    continue
                else:
                    raise AssertionError(f"cmp({v1}, {v2}) shouldn't raise ValueError")
            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
            res = StrictVersion(v1)._cmp(v2)
            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
            res = StrictVersion(v1)._cmp(object())
            assert res is NotImplemented, (
                f'cmp({v1}, {v2}) should be NotImplemented, got {res}'
            )

def test_cmp(self):
        versions = (
            ('1.5.1', '1.5.2b2', -1),
            ('161', '3.10a', 1),
            ('8.02', '8.02', 0),
            ('3.4j', '1996.07.12', -1),
            ('3.2.pl0', '3.1.1.6', 1),
            ('2g6', '11g', -1),
            ('0.960923', '2.2beta29', -1),
            ('1.13++', '5.5.kw', -1),
        )

for v1, v2, wanted in versions:
            res = LooseVersion(v1)._cmp(LooseVersion(v2))
            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
            res = LooseVersion(v1)._cmp(v2)
            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
            res = LooseVersion(v1)._cmp(object())
            assert res is NotImplemented, (
                f'cmp({v1}, {v2}) should be NotImplemented, got {res}'
            )

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