add rerank api tests

litellm/tests/test_rerank.py

@@ -0,0 +1,93 @@
+import json
+import os
+import sys
+import traceback
+
+from dotenv import load_dotenv
+
+load_dotenv()
+import io
+import os
+
+sys.path.insert(
+    0, os.path.abspath("../..")
+)  # Adds the parent directory to the system path
+
+import os
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+
+import litellm
+from litellm import RateLimitError, Timeout, completion, completion_cost, embedding
+from litellm.llms.custom_httpx.http_handler import AsyncHTTPHandler, HTTPHandler
+
+
+def assert_response_shape(response, custom_llm_provider):
+    expected_response_shape = {"id": str, "results": list, "meta": dict}
+
+    expected_results_shape = {"index": int, "relevance_score": float}
+
+    expected_meta_shape = {"api_version": dict, "billed_units": dict}
+
+    expected_api_version_shape = {"version": str}
+
+    expected_billed_units_shape = {"search_units": int}
+
+    assert isinstance(response.id, expected_response_shape["id"])
+    assert isinstance(response.results, expected_response_shape["results"])
+    for result in response.results:
+        assert isinstance(result["index"], expected_results_shape["index"])
+        assert isinstance(
+            result["relevance_score"], expected_results_shape["relevance_score"]
+        )
+    assert isinstance(response.meta, expected_response_shape["meta"])
+
+    if custom_llm_provider == "cohere":
+
+        assert isinstance(
+            response.meta["api_version"], expected_meta_shape["api_version"]
+        )
+        assert isinstance(
+            response.meta["api_version"]["version"],
+            expected_api_version_shape["version"],
+        )
+        assert isinstance(
+            response.meta["billed_units"], expected_meta_shape["billed_units"]
+        )
+        assert isinstance(
+            response.meta["billed_units"]["search_units"],
+            expected_billed_units_shape["search_units"],
+        )
+
+
+def test_basic_rerank():
+    response = litellm.rerank(
+        model="cohere/rerank-english-v3.0",
+        query="hello",
+        documents=["hello", "world"],
+        top_n=3,
+    )
+
+    print("re rank response: ", response)
+
+    assert response.id is not None
+    assert response.results is not None
+
+    assert_response_shape(response, custom_llm_provider="cohere")
+
+
+def test_basic_rerank_together_ai():
+    response = litellm.rerank(
+        model="together_ai/Salesforce/Llama-Rank-V1",
+        query="hello",
+        documents=["hello", "world"],
+        top_n=3,
+    )
+
+    print("re rank response: ", response)
+
+    assert response.id is not None
+    assert response.results is not None
+
+    assert_response_shape(response, custom_llm_provider="together_ai")