Python countX примеры использования

Пример #1

def test_0():
    assert countX("xxhixx") == 4

Пример #2

def test_6():
    assert countX("hihi") == 0

Пример #3

def test_5():
    assert countX("") == 0

Пример #4

def test_4():
    assert countX("x") == 1

Пример #5

def test_3():
    assert countX("h") == 0

Пример #6

def test_2():
    assert countX("hi") == 0