等价类测试、边界值测试、决策表测试的相关例题和python编程代码

Question

最近刚接触软件测试，有什么与黑盒测试想关的以上三种测试编程例子吗

Answer 1

参考GPT和自己的思路：

好的，我可以为您提供一些关于等价类测试、边界值测试和决策表测试的例子和Python编程代码。以下是示例代码：

1. 等价类测试示例代码：

def get_grade(score):
    if score < 0 or score > 100:
        return "Invalid score"
    elif score >= 90:
        return "A"
    elif score >= 80:
        return "B"
    elif score >= 70:
        return "C"
    elif score >= 60:
        return "D"
    else:
        return "F"

# Equivalent class partitioning test cases
assert get_grade(-1) == "Invalid score"
assert get_grade(101) == "Invalid score"
assert get_grade(90) == "A"
assert get_grade(85) == "B"
assert get_grade(75) == "C"
assert get_grade(65) == "D"
assert get_grade(55) == "F"

1. 边界值测试示例代码：

def get_discount(price):
    if price < 0:
        return "Invalid price"
    elif price < 100:
        return 0
    elif price < 500:
        return 10
    elif price < 1000:
        return 20
    else:
        return 30

# Boundary value test cases
assert get_discount(0) == "Invalid price"
assert get_discount(99) == 0
assert get_discount(100) == 10
assert get_discount(499) == 10
assert get_discount(500) == 20
assert get_discount(999) == 20
assert get_discount(1000) == 30
assert get_discount(2000) == 30

1. 决策表测试示例代码：

def calculate_tax(income, is_married, has_children):
    if income < 0:
        return "Invalid income"

    tax_rate = 0
    if income <= 10000:
        tax_rate = 0.1
    elif income <= 50000:
        tax_rate = 0.2
    else:
        tax_rate = 0.3

    if is_married:
        tax_rate -= 0.1

    if has_children:
        tax_rate -= 0.05

    tax = income * tax_rate
    return tax

# Decision table test cases
assert calculate_tax(5000, False, False) == 500
assert calculate_tax(15000, True, False) == 2250
assert calculate_tax(40000, False, True) == 8400
assert calculate_tax(-1, False, False) == "Invalid income"

希望这些示例代码可以帮助您更好地了解等价类、边界值和决策表测试的应用。