from oscar.apps.voucher.utils import generate_code


def test_generate_code():
    result = generate_code(length=16)
    assert len(result) == 19
    assert result.count('-') == 3

    result = generate_code(length=16, group_length=3)
    assert len(result) == 21
    assert result.count('-') == 5

    result = generate_code(length=16, group_length=3, separator='_')
    assert len(result) == 21
    assert result.count('_') == 5

    result = generate_code(length=16, group_length=16, separator=' ')
    assert len(result) == 16
    assert result.count(' ') == 0