refactor: move all testing to top-level of repo

Closes https://github.com/BerriAI/litellm/issues/486

tests/local_testing/test_add_function_to_prompt.py

@@ -0,0 +1,80 @@
+#### What this tests ####
+#  Allow the user to map the function to the prompt, if the model doesn't support function calling
+
+import sys, os, pytest
+import traceback
+
+sys.path.insert(
+    0, os.path.abspath("../..")
+)  # Adds the parent directory to the system path
+import litellm
+
+
+## case 1: set_function_to_prompt not set
+def test_function_call_non_openai_model():
+    try:
+        model = "claude-instant-1"
+        messages = [{"role": "user", "content": "what's the weather in sf?"}]
+        functions = [
+            {
+                "name": "get_current_weather",
+                "description": "Get the current weather in a given location",
+                "parameters": {
+                    "type": "object",
+                    "properties": {
+                        "location": {
+                            "type": "string",
+                            "description": "The city and state, e.g. San Francisco, CA",
+                        },
+                        "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]},
+                    },
+                    "required": ["location"],
+                },
+            }
+        ]
+        response = litellm.completion(
+            model=model, messages=messages, functions=functions
+        )
+        pytest.fail(f"An error occurred")
+    except Exception as e:
+        print(e)
+        pass
+
+
+# test_function_call_non_openai_model()
+
+
+## case 2: add_function_to_prompt set
+@pytest.mark.skip(reason="Anthropic now supports tool calling")
+def test_function_call_non_openai_model_litellm_mod_set():
+    litellm.add_function_to_prompt = True
+    litellm.set_verbose = True
+    try:
+        model = "claude-instant-1.2"
+        messages = [{"role": "user", "content": "what's the weather in sf?"}]
+        functions = [
+            {
+                "name": "get_current_weather",
+                "description": "Get the current weather in a given location",
+                "parameters": {
+                    "type": "object",
+                    "properties": {
+                        "location": {
+                            "type": "string",
+                            "description": "The city and state, e.g. San Francisco, CA",
+                        },
+                        "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]},
+                    },
+                    "required": ["location"],
+                },
+            }
+        ]
+        response = litellm.completion(
+            model=model, messages=messages, functions=functions
+        )
+        print(f"response: {response}")
+    except Exception as e:
+        pytest.fail(f"An error occurred {e}")
+
+
+# test_function_call_non_openai_model_litellm_mod_set()