1 # 导入unittest模块
2 import unittest
3
4
5 # 创建单元测试类,继承unittest.TestCase
6 class testCase(unittest.TestCase):
7
8 def setUp(self):
9 print("case执行前")
10
11 def tearDown(self):
12 print("case执行后")
13
14 @classmethod
15 def setUpClass(cls):
16 print("对象执行前")
17
18 @classmethod
19 def tearDownClass(cls):
20 print("对象执行后")
21
22 # 测试用例
23 def test_01(self):
24 print("test01")
25
26 def test_02(self):
27 print("test02")
28
29
30 if __name__ == '__main__':
31 unittest.main()
运行结果
1 对象执行前
2 case执行前
3 test01
4 case执行后
5 case执行前
6 test02
7 case执行后
8 对象执行后
9
10
11 Ran 2 tests in 0.002s
12
13 OK
这里包含的知识点:
self
@classmethod
cls
@classmethod
module
1 class testCase(unittest.TestCase):
2
3 def test_03(self):
4 # 断言 - 是否为True
5 flag = True
6 self.assertTrue(flag, msg="测试失败的信息,可不填")
7
8 def test_04(self):
9 # 断言 - 是否为False
10 flag = False
11 self.assertFalse(flag)
12
13 def test_05(self):
14 # 断言 - 提供的两个参数是否相同(任意类型)
15 self.assertEqual("123", "123") # 字符串
16 self.assertEqual({"a": 1}, {"a": 1}) # 字典
17 self.assertEqual([1, 2], [1, 2]) # 列表
18 self.assertEqual((1, 2), (1, 2)) # 元组
19 self.assertEqual({1, 2}, {1, 2}) # 集合
20
21 def test_06(self):
22 # 断言 - 列表是否相同
23 self.assertListtEqual([1, 2], [1, 2])
24
25 def test_07(self):
26 # 断言 - 字典是否相同
27 self.assertDictEqual({"a": 1}, {"a": 1})
28
29 def test_08(self):
30 # 断言 - 元组是否相同
31 self.assertTupleEqual((1, 2), (1, 2))
32
33 def test_09(self):
34 # 断言 - 集合是否相同
35 self.assertSetEqual({1, 2}, {1, 2})
这是比较常见的断言方式,当然还有一些比较容易理解的断言方式就没有一一举例啦,具体可以看看下面列表
方法 | 等同于python里面的写法 |
---|---|
assertEqual(a, b) | a == b |
assertNotEqual(a, b) | a != b |
assertTrue(x) | bool(x) is True |
assertFalse(x) | bool(x) is False |
assertIs(a, b) | a is b |
assertIsNot(a, b) | a is not b |
assertIsNone(x) | x is None |
assertIsNotNone(x) | x is not None |
assertIn(a, b) | a in b |
assertNotIn(a, b) | a not in b |
assertIsInstance(a, b) | isinstance(a, b) |
assertNotIsInstance(a, b) | not isinstance(a, b) |
assertRegex(s, r) | r.search(s) |
1 class testCase(unittest.TestCase):
2
3 # 直接跳过
4 @unittest.skip("直接跳过")
5 def test_skip(self):
6 self.fail("shouldn't happen")
7
8 # 满足condition则跳过
9 @unittest.skipIf(1 < 2, "满足condition则跳过")
10 def test_skipIf(self):
11 print("skip if")
12
13 # 不满足condition则跳过
14 @unittest.skipUnless(sys.platform.startswith("win"), "需要window平台才不会跳过")
15 def test_skipUnless(self):
16 print("skip Unless")
17
18 # 预计该测试用例会测试失败
19 @unittest.expectedFailure
20 def test_fail(self):
21 self.assertEqual(1, 0, "broken")
22
23 # 方法体内跳出不执行case
24 def test_maybe_skipped(self):
25 if True:
26 self.skipTest("调用unittest的skipTest,在方法体内满足某些条件则跳过该case")
27 pass
运行结果
1 Skipped: 调用unittest的skipTest,在方法体内满足某些条件则跳过该case
2
3 Skipped: 直接跳过
4
5 Skipped: 满足condition则跳过
6 skip Unless
7
8
9 Ran 5 tests in 0.010s
10
11 OK (skipped=3, expected failures=1)
@unittest.skip(reason)
@unittest.skipIf(condition, reason)
@unittest.skipUnless(condition, reason)
@unittest.expectedFailure
在方法体内满足某些条件下才跳过执行该测试用例
setUp()
unittest.skip
unittest.skip()
setUpClass()
self.skipTest(reason)