softest - Soft Assertions

Supports the soft assert style of testing,
where multiple assertions can fail within the same method,
while collecting and formatting those failures' stack traces
for reporting by a final assert_all call.

Such stack traces are enhanced
to include the call hierarchy
from within the test class.

Usage

import softest

class ExampleTest(softest.TestCase):
	def test_example(self):
		self.soft_assert(self.assertEqual, 'Worf', 'wharf', 'Klingon is not ship receptacle')
		self.soft_assert(self.assertTrue, True)
		self.soft_assert(self.assertTrue, False)

		self.assert_all()

if __name__ == '__main__':
	softest.main()

Error Console Output

======================================================================
FAIL: "test_example" (ExampleTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\...\softest_test.py", line 14, in test_example
    self.assert_all()
  File "C:\...\softest\case.py", line 138, in assert_all
    self.fail(''.join(failure_output))
AssertionError: ++++ soft assert failure details follow below ++++

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following 2 failures were found in "test_example" (ExampleTest):
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Failure 1 ("test_example" method)
+--------------------------------------------------------------------+
Traceback (most recent call last):
  File "C:\...\softest_test.py", line 10, in test_example
    self.soft_assert(self.assertEqual, 'Worf', 'wharf', 'Klingon is not ship receptacle')
  File "C:\...\softest\case.py", line 84, in soft_assert
    assert_method(*arguments, **keywords)
  File "C:\...\Python\Python36-32\lib\unittest\case.py", line 829, in assertEqual
    assertion_func(first, second, msg=msg)
  File "C:\...\Python\Python36-32\lib\unittest\case.py", line 1203, in assertMultiLineEqual
    self.fail(self._formatMessage(msg, standardMsg))
  File "C:\...\Python\Python36-32\lib\unittest\case.py", line 670, in fail
    raise self.failureException(msg)
AssertionError: 'Worf' != 'wharf'
- Worf
+ wharf
 : Klingon is not ship receptacle

+--------------------------------------------------------------------+
Failure 2 ("test_example" method)
+--------------------------------------------------------------------+
Traceback (most recent call last):
  File "C:\...\softest_test.py", line 12, in test_example
    self.soft_assert(self.assertTrue, False)
  File "C:\...\softest\case.py", line 84, in soft_assert
    assert_method(*arguments, **keywords)
  File "C:\...\Python\Python36-32\lib\unittest\case.py", line 682, in assertTrue
    raise self.failureException(msg)
AssertionError: False is not true


----------------------------------------------------------------------
Ran 1 test in 0.000s

FAILED (failures=1)