How to create a custom UnitTest report in Python?

Question

I'm having some difficulty understanding how I would go about changing a unittest report similar to:

======================================================================    
FAIL: test_equal (__main__.InequalityTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test_notequal.py", line 7, in test_equal
    self.assertNotEqual(1, 3-2, "My Custom Message")
AssertionError: 1 == 1

to a report resembling:

Line 7: My Custom Message

How could I parse these reports?

Community · Accepted Answer · 2017-05-23 11:53:11Z

2

After further research, my problem can be solved by overriding the default TestResult class as seen here: Turn some print off in python unittest

or by using some third-party customization such as nose, an HTMLTestRunner.

edited May 23, 2017 at 11:53

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answered Jun 7, 2013 at 13:37

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Comments

prashant · Accepted Answer · 2021-02-20 07:03:12Z

In case you need to create a custom report based on the success/failure of individual test cases, you can create a custom TestRunner, which uses custom TestResult, and in TestResult class, override success and failure methods. This will provide the callback for processing as per requirement.

class CustomTestRunner(TextTestRunner): 
        def _makeResult(self): 
            return CustomTestResult(TestResult)
        def run(self, test) -> unittest.result.TestResult:
            # add implementation as per TextTestRunner run method here

class CustomTestResult:
       def addSuccess(self, test):
           super(CustomTestResult, self).addSuccess(test)
           # your logic to log success cases

       def addFailure(self, test):
           super(CustomTestResult, self).addFailure(test)
           # your logic to log failure cases

For reference, please check python unittest module.

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