Question

我的测试脚本如下所示：

import os
import sys
from unittest import defaultTestLoader as loader, TextTestRunner

path_to_my_project = os.path.dirname(os.path.abspath(__file__)) + '/../'
sys.path.insert(0, path_to_my_project)

suite = loader.discover('my_project')
runner = TextTestRunner()
runner.run(suite)

如果我运行此脚本，则输出为：

$ python3 runtest.py
.....F.....
======================================================================
FAIL: test_insert (fate.test.test_operators.OperatorTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/chiel/Projects/tfate/libs/fate/../fate/test/test_operators.py", line 16, in test_insert
    self.assertEqual(expected, self.session.text[:14])
AssertionError: 'Foo import sys$' != 'Foo import sys'
- Foo import sys$
?               -
+ Foo import sys


----------------------------------------------------------------------
Ran 12 tests in 0.030s

FAILED (failures=1)

退出代码为零：

$ echo $?
0

但是，python docs表示“默认情况下主要调用sys.exit()，并带有表示测试成功或失败的退出代码。”

我的剧本出了什么问题？

Answer 1

代码未使用unittest.main。您需要使用TestResult.wasSuccessful检查结果并手动调用sys.exit。

import sys

....

ret = not runner.run(suite).wasSuccessful()
sys.exit(ret)

Answer 2

我在获取TextTestRunner结果时遇到了一些麻烦。对于像我这样的人来说，这是它的工作原理：

"""Run all tests inside of *_test.py modules located in the same directory."""


import sys
import unittest


if __name__ == '__main__':
    test_suite = unittest.defaultTestLoader.discover('.', '*_test.py')
    test_runner = unittest.TextTestRunner(resultclass=unittest.TextTestResult)
    result = test_runner.run(test_suite)
    sys.exit(not result.wasSuccessful())

即使测试失败，单元测试脚本也会返回退出代码= 0

2 个答案: