Function test_bad_version

pandas/tests/test_optional_dependency.py:30–65

(monkeypatch)

def test_bad_version(monkeypatch):
    name = "fakemodule"
    module = types.ModuleType(name)
    module.__version__ = "0.9.0"
    sys.modules[name] = module
    monkeypatch.setitem(VERSIONS, name, "1.0.0")

    match = "Pandas requires .*1.0.0.* of .fakemodule.*'0.9.0'"
    with pytest.raises(ImportError, match=match):
        import_optional_dependency("fakemodule")

    # Test min_version parameter
    result = import_optional_dependency("fakemodule", min_version="0.8")
    assert result is module

    with tm.assert_produces_warning(UserWarning, match=match):
        result = import_optional_dependency("fakemodule", errors="warn")
    assert result is None

    module.__version__ = "1.0.0"  # exact match is OK
    result = import_optional_dependency("fakemodule")
    assert result is module

    with pytest.raises(ImportError, match="Pandas requires version '1.1.0'"):
        import_optional_dependency("fakemodule", min_version="1.1.0")

    with tm.assert_produces_warning(UserWarning, match="Pandas requires version"):
        result = import_optional_dependency(
            "fakemodule", errors="warn", min_version="1.1.0"
        )
    assert result is None

    result = import_optional_dependency(
        "fakemodule", errors="ignore", min_version="1.1.0"
    )
    assert result is None


def test_submodule(monkeypatch):