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我有这个普通的普通单元测试，它按预期工作，只要我省略了构造函数。
import sys
import unittest
class Instance_test(unittest.TestCase):
def __init__(self):
super(Instance_test, self).__init__()
self.attribute = "new"
def test_something(self):
pass
def test_other(self):
self.assertTrue(True)
pass
def setUp(self):
pass
def tearDown(self):
pass
def suite():
return unittest.makeSuite(Instance_test, "test")
def main():
runner = unittest.TextTestRunner(sys.stdout)
runner.run(suite())
if __name__ == "__main__":
main()
在构造函数就位的情况下获取此回溯:
Traceback (most recent call last):
File "f:\gt\check.py", line 31, in main()
File "f:\gt\check.py", line 28, in main
runner.run(suite())
File "f:\gt\check.py", line 24, in suite
return unittest.makeSuite(Instance_test, "test")
File "C:\Python34\lib\unittest\loader.py", line 374, in makeSuite
testCaseClass)
File "C:\Python34\lib\unittest\loader.py", line 70, in loadTestsFromTestCase
loaded_suite = self.suiteClass(map(testCaseClass, testCaseNames))
File "C:\Python34\lib\unittest\suite.py", line 24, in __init__
self.addTests(tests)
File "C:\Python34\lib\unittest\suite.py", line 60, in addTests
for test in tests:
TypeError: __init__() takes 1 positional argument but 2 were given
有什么问题吗？我还有什么办法让不同的 test_xxx 方法共享一个中心属性？