feat(router.py): support mock testing content policy + context window fallbacks

litellm/proxy/_new_secret_config.yaml

@@ -1,24 +1,54 @@
+# model_list: 
+#   - model_name: my-fake-model
+#     litellm_params:
+#       model: bedrock/anthropic.claude-3-sonnet-20240229-v1:0
+#       api_key: my-fake-key
+#       aws_bedrock_runtime_endpoint: http://127.0.0.1:8000
+#       mock_response: "Hello world 1"
+#     model_info: 
+#       max_input_tokens: 0 # trigger context window fallback
+#   - model_name: my-fake-model
+#     litellm_params:
+#       model: bedrock/anthropic.claude-3-sonnet-20240229-v1:0
+#       api_key: my-fake-key
+#       aws_bedrock_runtime_endpoint: http://127.0.0.1:8000
+#       mock_response: "Hello world 2"
+#     model_info: 
+#       max_input_tokens: 0
+
+# router_settings:
+#   enable_pre_call_checks: True
+
+
+# litellm_settings:
+#   failure_callback: ["langfuse"]
+
 model_list:
-  - model_name: my-fake-model
+  - model_name: summarize
     litellm_params:
-      model: bedrock/anthropic.claude-3-sonnet-20240229-v1:0
-      api_key: my-fake-key
-      aws_bedrock_runtime_endpoint: http://127.0.0.1:8000
-      mock_response: "Hello world 1"
-    model_info: 
-      max_input_tokens: 0 # trigger context window fallback
-  - model_name: my-fake-model
+        model: openai/gpt-4o
+        rpm: 10000      
+        tpm: 12000000
+        api_key: os.environ/OPENAI_API_KEY
+        mock_response: Hello world 1
+
+  - model_name: summarize-l
     litellm_params:
-      model: bedrock/anthropic.claude-3-sonnet-20240229-v1:0
-      api_key: my-fake-key
-      aws_bedrock_runtime_endpoint: http://127.0.0.1:8000
-      mock_response: "Hello world 2"
-    model_info: 
-      max_input_tokens: 0
-
-router_settings:
-  enable_pre_call_checks: True
-
+        model: claude-3-5-sonnet-20240620
+        rpm: 4000
+        tpm: 400000
+        api_key: os.environ/ANTHROPIC_API_KEY
+        mock_response: Hello world 2
 
 litellm_settings:
-  failure_callback: ["langfuse"]
+  num_retries: 3
+  request_timeout: 120
+  allowed_fails: 3
+  # fallbacks: [{"summarize": ["summarize-l", "summarize-xl"]}, {"summarize-l": ["summarize-xl"]}]
+  context_window_fallbacks: [{"summarize": ["summarize-l", "summarize-xl"]}, {"summarize-l": ["summarize-xl"]}]
+
+
+
+router_settings:
+  routing_strategy: simple-shuffle
+  enable_pre_call_checks: true.

litellm/router.py

@@ -2117,6 +2117,12 @@ class Router:
         If it fails after num_retries, fall back to another model group
         """
         mock_testing_fallbacks = kwargs.pop("mock_testing_fallbacks", None)
+        mock_testing_context_fallbacks = kwargs.pop(
+            "mock_testing_context_fallbacks", None
+        )
+        mock_testing_content_policy_fallbacks = kwargs.pop(
+            "mock_testing_content_policy_fallbacks", None
+        )
         model_group = kwargs.get("model")
         fallbacks = kwargs.get("fallbacks", self.fallbacks)
         context_window_fallbacks = kwargs.get(
@@ -2130,6 +2136,26 @@ class Router:
                 raise Exception(
                     f"This is a mock exception for model={model_group}, to trigger a fallback. Fallbacks={fallbacks}"
                 )
+            elif (
+                mock_testing_context_fallbacks is not None
+                and mock_testing_context_fallbacks is True
+            ):
+                raise litellm.ContextWindowExceededError(
+                    model=model_group,
+                    llm_provider="",
+                    message=f"This is a mock exception for model={model_group}, to trigger a fallback. \
+                        Context_Window_Fallbacks={context_window_fallbacks}",
+                )
+            elif (
+                mock_testing_content_policy_fallbacks is not None
+                and mock_testing_content_policy_fallbacks is True
+            ):
+                raise litellm.ContentPolicyViolationError(
+                    model=model_group,
+                    llm_provider="",
+                    message=f"This is a mock exception for model={model_group}, to trigger a fallback. \
+                        Context_Policy_Fallbacks={content_policy_fallbacks}",
+                )
 
             response = await self.async_function_with_retries(*args, **kwargs)
             verbose_router_logger.debug(f"Async Response: {response}")