"""Test common utilities."""
import os
import re

from dbdeploy.util.common import get_project_root
from dbdeploy.util.common import str_uuid
from dbdeploy.base import config


def test_uuid_str():
    """Verify function returns UUID as a string."""
    assert re.match('^[a-fA-F0-9]{8}-'
                    '[a-fA-F0-9]{4}-'
                    '[a-fA-F0-9]{4}-'
                    '[a-fA-F0-9]{4}-'
                    '[a-fA-F0-9]{12}$', str_uuid())


def test_get_project_root():
    """Test project root is returned."""
    expected_files = {'application.py', 'README.md', 'Makefile'}
    root_files = set(os.listdir(get_project_root()))
    conf_root_files = set(os.listdir(config.PROJECT_ROOT))
    assert expected_files.issubset(root_files)
    assert expected_files.issubset(conf_root_files)