def test_max_min_kernel():
    rpms = InstalledRpms(context_wrap(RPMS_MULTIPLE_KERNEL))
    assert rpms.get_min('kernel').package == 'kernel-3.10.0-327.el7'
    assert rpms.get_max('kernel').package == 'kernel-3.10.0-327.36.1.el7'
    assert rpms.get_min(
        'kernel-devel').package == 'kernel-devel-3.10.0-327.el7'
    assert rpms.get_max(
        'kernel-devel').package == 'kernel-devel-3.10.0-327.36.1.el7'
def test_max_min_not_found():
    rpms = InstalledRpms(context_wrap(RPMS_MULTIPLE_KERNEL))
    assert rpms.get_min('abc') is None
    assert rpms.get_max('abc') is None
def test_max_min():
    rpms = InstalledRpms(context_wrap(RPMS_MULTIPLE))
    assert rpms.get_min('yum').package == 'yum-3.4.2-132.el7'
    assert rpms.get_max('yum').package == 'yum-3.4.3-132.el7'