[英]Python unittest output only on test failures
Is there a way to write (or run) a set of Python unittest
tests so that there is no output except when there is a test failure?有没有办法编写(或运行)一组unittest
单元测试,以便除了测试失败之外没有 output?
For example, if tests/mytests.py
contains some unittest
tests, then running python3 test/mytests.py
will only output to stdout (or stderr) if there is a test failure.例如,如果tests/mytests.py
包含一些unittest
测试,那么如果测试失败,运行python3 test/mytests.py
只会 output 到 stdout(或 stderr)。
Yes there is.就在这里。 I was able to combine the techniques in the answers to these two questions to get it to work:我能够将这两个问题的答案中的技术结合起来使其发挥作用:
Python, unittest: Can one make the TestRunner completely quiet? Python,单元测试:可以让 TestRunner 完全安静吗?
argparse and unittest python argparse 和 unittest python
You can uncomment the test_should_fail()
test to verify what happens when a test fails.您可以取消注释test_should_fail()
测试以验证测试失败时会发生什么。
# mymodule.py
def myfunc():
return True
import unittest
import os
class TestMyFunc(unittest.TestCase):
def test_myfunc(self):
self.assertEqual(myfunc(), True)
# def test_should_fail(self):
# self.assertEqual(True, False)
if __name__ == '__main__':
alltests = unittest.TestLoader().loadTestsFromTestCase(TestMyFunc)
runner = unittest.TextTestRunner(stream=open(os.devnull, 'w'))
result = runner.run(alltests)
if len(result.failures) or len(result.errors):
print('There were failures or errors.')
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