remove test_content_type_literal_defaults test

Author: felixweinberger

tests/test_types.py

@@ -9,14 +9,12 @@
     CreateMessageRequestParams,
     CreateMessageResult,
     CreateMessageResultWithTools,
-    ImageContent,
     Implementation,
     InitializeRequest,
     InitializeRequestParams,
     JSONRPCMessage,
     JSONRPCRequest,
     ListToolsResult,
-    PromptReference,
     SamplingCapability,
     SamplingMessage,
     TextContent,
@@ -73,17 +71,6 @@ async def test_method_initialization():
     assert initialize_request.params.protocolVersion == LATEST_PROTOCOL_VERSION
 
 
-def test_content_type_literal_defaults():
-    """Content types should default their Literal type field.
-
-    This allows instantiation without explicitly passing the type discriminator,
-    e.g., TextContent(text="hello") instead of TextContent(type="text", text="hello").
-    """
-    assert TextContent(text="hello").type == "text"
-    assert ImageContent(data="base64", mimeType="image/png").type == "image"
-    assert PromptReference(name="test").type == "ref/prompt"
-
-
 @pytest.mark.anyio
 async def test_tool_use_content():
     """Test ToolUseContent type for SEP-1577."""