Improved some error behaviour (Azure#21499)

Author: annatisch

sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_patch.py

@@ -37,10 +37,9 @@ def _get_positional_body(*args, **kwargs):
     """Verify args and kwargs are valid, and then return the positional body, if users passed it in."""
     if len(args) > 1:
         raise TypeError("There can only be one positional argument, which is the POST body of this request.")
-    if args and "options" in kwargs:
+    if "options" in kwargs:
         raise TypeError(
-            "You have already supplied the request body as a positional parameter, "
-            "you can not supply it as a keyword argument as well."
+            "The 'options' parameter is positional only."
         )
     return args[0] if args else None
 

sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase.py

@@ -355,6 +355,19 @@ def test_query_knowledgebase_overload_positional_and_kwarg(self):
                 client.get_answers("positional_one", "positional_two")
             with pytest.raises(TypeError):
                 client.get_answers("positional_options_bag", options="options bag by name")
+            with pytest.raises(TypeError):
+                client.get_answers(
+                    options={'qnaId': 15},
+                    project_name="hello",
+                    deployment_name='test'
+                )
+            with pytest.raises(TypeError):
+                client.get_answers(
+                    {'qnaId': 15},
+                    question='Why?',
+                    project_name="hello",
+                    deployment_name='test'
+                )
 
     def test_query_knowledgebase_question_or_qna_id(self):
         with QuestionAnsweringClient("http://fake.com", AzureKeyCredential("123")) as client:

sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text.py

@@ -187,3 +187,29 @@ def test_query_text_overload_positional_and_kwarg(self):
                 client.get_answers_from_text("positional_one", "positional_two")
             with pytest.raises(TypeError):
                 client.get_answers_from_text("positional_options_bag", options="options bag by name")
+            
+            params = AnswersFromTextOptions(
+                question="What is the meaning of life?",
+                text_documents=[
+                    TextDocument(
+                        text="foo",
+                        id="doc1"
+                    ),
+                    TextDocument(
+                        text="bar",
+                        id="doc2"
+                    )
+                ],
+                language="en"
+            )
+            with pytest.raises(TypeError):
+                client.get_answers_from_text(options=params)
+            
+            with pytest.raises(TypeError):
+                client.get_answers_from_text(
+                    question="why?",
+                    text_documents=["foo", "bar"],
+                    options=params)
+            
+            with pytest.raises(TypeError):
+                client.get_answers_from_text(params, question="Why?")