def test_crypt_context_to_settings():
    from ordr.security import crypt_context_settings_to_string
    settings = {
        'no_prefix': 'should not appear',
        'prefix.something': 'left unchanged',
        'prefix.schemes': 'adjust list',
        'prefix.depreceated': 'do, not, adjust, this, list'
        }
    result = crypt_context_settings_to_string(settings, 'prefix.')
    expected_lines = {
        '[passlib]',
        'something = left unchanged',
        'schemes = adjust,list',
        'depreceated = do, not, adjust, this, list',
        }
    assert set(result.split('\n')) == expected_lines