import unittest
def add(a, b):
return a + b
def minus(a, b):
return a - b
class TestMath(unittest.TestCase):
@classmethod
def setUpClass(cls):
print("do something before test only once")
@classmethod
def tearDownClass(cls):
print("do something after test only once")
def setUp(self):
print("do something before test")
def tearDown(self):
print("do something after test")
def test_add(self):
self.assertEqual(3, add(1,2))
def test_minus(self):
self.assertEqual(4, minus(5,1))
if __name__ == "__main__":
# unittest.main(verbosity = 2)
suite = unittest.TestSuite()
tests = [TestMath("test_add"), TestMath("test_minus")]
suite.addTests(tests)
runner = unittest.TextTestRunner(verbosity=2)
runner.run(suite)1.引入 unittest
2. 继承unitst.TestCase
3. setUpClass 和 tearDownClass在测试前和测试后做一些想要的工作，只做一次，setUp和tearDown，每个都会执行
4.测试方法用test_开头
5.最常用的是assertEqual这种断言是否相同
6.用unittest.main()来运行
7.还有如果要调整测试次序，要用到TestSuite
8.python -m unittest testunit.py 还可以这样运行测试
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