def test_Consistent_longerList_NOTOK():
    assert listChecker.ListChecker().isConsistent(
        ['1234',
         '12888',
         '9876',
         '1288']
    ) == False
def test_Consistent_longerList_OK():
    assert listChecker.ListChecker().isConsistent(
        ['1234',
         '12888',
         '9876',
         '1212']
    ) == True
def test_notConsistent():
    assert listChecker.ListChecker().isConsistent(
        ['1234',
         '12345']
    ) == False
def test_listOneElement():
    assert listChecker.ListChecker().isConsistent(['1234']) == True
def test_emptyList(): 
    assert listChecker.ListChecker().isConsistent() == True
def test_Consistent():
    assert listChecker.ListChecker().isConsistent(
        ['1234',
         '12888']
    ) == True