无法理解如何使用unittest模块在python中编写工作日的测试用例

我在python中有一个函数，它将weekday作为一个参数，并在成功的weekday返回一个int，我是python unittesting的新手，我想知道如何为它编写unittest用例。下面是函数：

def dayNameFromWeekday(weekday):
    if weekday == "Monday":
        return 0
    if weekday == "Tuesday":
        return 1
    if weekday == "Wednesday":
        return 2
    if weekday == "Thursday":
        return 3
    if weekday == "Friday":
        return 4
    if weekday == "Saturday":
        return 5
    if weekday == "Sunday":
        return 6

这是测试文件

class Utils(unittest.TestCase):
    def test_dayNameFromWeekday(self, weekday):
        if weekday == "Monday":
            return 0
        elif weekday == "Tuesday":
            return 1
        elif weekday == "Wednesday":
            return 2
        elif weekday == "Thursday":
            return 3
        elif weekday == "Friday":
            return 4
        elif weekday == "Saturday":
            return 5
        elif weekday == "Sunday":
            return 6
        else:
            return -1  # Any error message

    res = self.test_dayNameFromWeekday("Monday")

我不知道如何为这个函数编写测试用例，请告诉我unittest python的工作方式。

以下是解决方案：

import unittest
class Utils(unittest.TestCase):
    def test_dayNameFromWeekday(self, weekday):
        if weekday == "Monday":
            return 0
        elif weekday == "Tuesday":
            return 1
        elif weekday == "Wednesday":
            return 2
        elif weekday == "Thursday":
            return 3
        elif weekday == "Friday":
            return 4
        elif weekday == "Saturday":
            return 5
        elif weekday == "Sunday":
            return 6
        else:
            return -1  # Any error message
    def runTest(self):
        res = self.test_dayNameFromWeekday("Monday")
        print(res)

res = Utils()
res.run()

---

如果我在名为test_dayname fromWeekday（self）的函数中对测试文件使用此代码，则会出现类似于weekday not defined（未定义weekday）的错误。除此之外，是否有方法使用assertEqual语句编写测试用例？@Cerrical_刺客您编写了错误的函数名。它应该是

test\u dayname fromWeekday（self，weekday）

@cerebral\u刺客将函数名更改为

def test\u dayname fromWeekday（self，weekday）：

并告诉我是的，我尝试过，但这次它抛出了一个类型错误：test\u dayname fromWeekday（）缺少1个必需的位置参数：“weekday”@cerebral_刺客检查我的更新代码。跟我做的一样