Catch errors correctly in result

Author: Maxcode123

src/unittest_extensions/case.py

@@ -45,15 +45,15 @@ def result(self) -> Any:
         try:
             self._subject_result = self.subject(**self._subjectKwargs)
             return self._subject_result
-        except TypeError as e:
+        except Exception as e:
             msg = e.args[0]
-            if "unexpected keyword argument" in msg:
+            if "subject() got an unexpected keyword argument" in msg:
                 raise TestError(
                     "Subject received "
                     + msg.split("subject() got ")[1]
                     + ". Did you decorate a test method with the wrong 'args'?"
                 )
-            elif "required positional argument" in msg:
+            elif "subject() missing" in msg and ("required positional argument" in msg):
                 raise TestError(
                     "Subject misses "
                     + msg.split("subject() missing ")[1]

src/unittest_extensions/tests/test_use_case.py

@@ -64,10 +64,23 @@ def test_missing_arg_raises(self):
 
     @args({"a": 1, "b": 2})
     def test_cachedResult_raises(self):
-        with self.assertRaises(TestError):
+        with self.assertRaisesRegex(
+            TestError, "Cannot call 'cachedResult' before calling 'result'"
+        ):
             self.cachedResult()
 
 
+class TestSubjectMissingRequiredPositionalArguments(TestCase):
+    def subject(self, a, b, c, d):
+        return 1
+
+    @args({"a": 1, "b": 2})
+    def test_raises_test_error(self):
+        self.assertResultRaisesRegex(
+            TestError, "Subject misses 2 required positional arguments"
+        )
+
+
 class TestAppend(TestCase):
 
     def instance(self) -> TestClass: