Adds assertResultNotRaises method to TestCase

Author: Maxcode123

src/unittest_extensions/case.py

@@ -216,6 +216,13 @@ def assertResultRaises(self, expected_exception):
         with self.assertRaises(expected_exception):
             self.result()
 
+    def assertResultNotRaises(self):
+        """
+        Fail if an exception is raised by the result. This is equivalent to
+        just executing the result `self.result()`.
+        """
+        self.result()
+
     def assertResultRaisesRegex(self, expected_exception, expected_regex):
         """
         Fail unless an exception of class expected_exception is raised by the

src/unittest_extensions/tests/test_use_case.py

@@ -403,3 +403,16 @@ def test_args_raises_test_error(self):
         self.assertResultRaisesRegex(
             TestError, "No 'subject' method found; perhaps you mispelled it?"
         )
+
+
+class TestAssertResultNotRaises(TestCase):
+    def subject(self, r=False):
+        if r:
+            raise KeyError
+
+    def test_does_not_raise(self):
+        self.assertResultNotRaises()
+
+    @args(r=True)
+    def test_raises(self):
+        self.assertResultRaises(KeyError)