tests/test_runs.py

import pytest

from src.runs import make_run_id, validate_run_id


def test_make_run_id_valid():
    run_id = make_run_id("hello")
    assert validate_run_id(run_id) == run_id


def test_invalid_run_id():
    with pytest.raises(ValueError):
        validate_run_id("bad/run")