"""
Generate and work with PEP 425 Compatibility Tags.

copied from pip-20.3.1 pip/tests/unit/test_utils_compatibility_tags.py
download_url: https://raw.githubusercontent.com/pypa/pip/20.3.1/tests/unit/test_utils_compatibility_tags.py

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"""

import sysconfig
from unittest.mock import patch

import pytest

import utils_pip_compatibility_tags


@pytest.mark.parametrize(
    "version_info, expected",
    [
        ((2,), "2"),
        ((2, 8), "28"),
        ((3,), "3"),
        ((3, 6), "36"),
        # Test a tuple of length 3.
        ((3, 6, 5), "36"),
        # Test a 2-digit minor version.
        ((3, 10), "310"),
    ],
)
def test_version_info_to_nodot(version_info, expected):
    actual = utils_pip_compatibility_tags.version_info_to_nodot(version_info)
    assert actual == expected


class Testcompatibility_tags:
    def mock_get_config_var(self, **kwd):
        """
        Patch sysconfig.get_config_var for arbitrary keys.
        """
        get_config_var = sysconfig.get_config_var

        def _mock_get_config_var(var):
            if var in kwd:
                return kwd[var]
            return get_config_var(var)

        return _mock_get_config_var

    def test_no_hyphen_tag(self):
        """
        Test that no tag contains a hyphen.
        """
        import pip._internal.utils.compatibility_tags

        mock_gcf = self.mock_get_config_var(SOABI="cpython-35m-darwin")

        with patch("sysconfig.get_config_var", mock_gcf):
            supported = pip._internal.utils.compatibility_tags.get_supported()

        for tag in supported:
            assert "-" not in tag.interpreter
            assert "-" not in tag.abi
            assert "-" not in tag.platform


class TestManylinux2010Tags:
    @pytest.mark.parametrize(
        "manylinux2010,manylinux1",
        [
            ("manylinux2010_x86_64", "manylinux1_x86_64"),
            ("manylinux2010_i686", "manylinux1_i686"),
        ],
    )
    def test_manylinux2010_implies_manylinux1(self, manylinux2010, manylinux1):
        """
        Specifying manylinux2010 implies manylinux1.
        """
        groups = {}
        supported = utils_pip_compatibility_tags.get_supported(platforms=[manylinux2010])
        for tag in supported:
            groups.setdefault((tag.interpreter, tag.abi), []).append(tag.platform)

        for arches in groups.values():
            if arches == ["any"]:
                continue
            assert arches[:2] == [manylinux2010, manylinux1]


class TestManylinux2014Tags:
    @pytest.mark.parametrize(
        "manylinuxA,manylinuxB",
        [
            ("manylinux2014_x86_64", ["manylinux2010_x86_64", "manylinux1_x86_64"]),
            ("manylinux2014_i686", ["manylinux2010_i686", "manylinux1_i686"]),
        ],
    )
    def test_manylinuxA_implies_manylinuxB(self, manylinuxA, manylinuxB):
        """
        Specifying manylinux2014 implies manylinux2010/manylinux1.
        """
        groups = {}
        supported = utils_pip_compatibility_tags.get_supported(platforms=[manylinuxA])
        for tag in supported:
            groups.setdefault((tag.interpreter, tag.abi), []).append(tag.platform)

        expected_arches = [manylinuxA]
        expected_arches.extend(manylinuxB)
        for arches in groups.values():
            if arches == ["any"]:
                continue
            assert arches[:3] == expected_arches
