Python setUpClass是否可以在unnitest框架中扩展？

setUpClass是否可以在unnitest框架中扩展

定义扩展unnitest.TestCase的Base1，Base1具有setUpClass方法

import unittest
class Base1(unittest.TestCase):

@classmethod
def setUpClass(cls):
    print('setupClass - this is Base1')

@classmethod
def tearDownClass(cls):
    print('tearDownClass - this is Base1')

定义扩展Base1类的Base2

from Base1 import Base1
import unittest

class Base2(Base1):

@classmethod
def setUpClass(cls):
    print('setupClass - this is Base2')

@classmethod
def tearDownClass(cls):
    print('tearDownClass - this is Base2')

def test_default_size(self):
    self.assertEqual('a','a')

def test_resize(self):
    self.assertEqual('a','b')

---

我希望在Base2中的所有测试用例之前执行Base1中的setUpClass和Base2中的setUpClass，这可能吗

您必须显式调用

setUpClass

和

tearDownClass

：

class Base2(Base1):
    @classmethod
    def setUpClass(cls):
        print('setupClass - this is Base2')
        super(Base2, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        print('tearDownClass - this is Base2')
        super(Base2, cls).tearDownClass()

但是，如果不向这些类方法添加，则可以跳过定义它们：

class Base3(Base1):, 
    def test1(self):
        print('test1')

---

在这种情况下，将隐式调用

Base1

中的

setUpClass

和

tearDownClass

。

请参见此处的继承文档