"""
Test functions for normalizing various kinds of values
"""
from tljh.normalize import generate_system_username


def test_generate_username():
    """
    Test generating system usernames from hub usernames
    """
    usernames = {
        # Very short
        'jupyter-test': 'jupyter-test',
        # Very long
        'jupyter-aelie9sohjeequ9iemeipuimuoshahz4aitugiuteeg4ohioh5yuiha6aei7te5z': 'jupyter-aelie9sohjeequ9iem-4b726',
        # 26 characters, just below our cutoff for hashing
        'jupyter-abcdefghijklmnopq': 'jupyter-abcdefghijklmnopq',
        # 27 characters, just above our cutoff for hashing
        'jupyter-abcdefghijklmnopqr': 'jupyter-abcdefghijklmnopqr-e375e',

    }
    for hub_user, system_user in usernames.items():
        assert generate_system_username(hub_user) == system_user
        assert len(system_user) <= 32