mirror of
https://github.com/BerriAI/litellm.git
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8a103e26ab
* test: move routing, caching and callback tests out of local_testing Moves the 37 routing, caching and callback files in tests/local_testing into mirrored tests/unit paths and tests/integration sdk and security groups per the migration manifest, and deletes the 8 rows it marks for deletion * test: cover least-busy routing and tighten migrated router, cache and pass-through tests Add router-level least-busy tests for the three legacy rows that had no destination, move completion fallback and model alias tests to their mirror files, move router batch tests next to the router, and strengthen tests whose mutants survived (specific deployment, batch pair grouping, custom cache key, router cache ttl). Add a unit test for configured pass-through Authorization forwarding. * test: tighten migrated callback, proxy config and cache ttl tests Assert the full StandardLoggingPayload key set and the wire user on callback tests, add an async embedding failure callback test, drive the prometheus redis failure through a real RedisCache, use the real salt key in proxy config tests, pin the redis ttl value and rename fallback test helpers * test: fix semantic cache assertions and order-dependent router and callback tests Count semantic cache embeddings on the route, drain async cache writes before the second lookup, echo the requested model from the callback provider mock so response_cost does not depend on model_cost entries other tests register, and move the two-key authorization assertion to the auth failure test it belongs to * test: cover model_list fan-out and the usage-based routing tpm limit lost in the move * test: wait for the streamed cache entry in redis and drop deleted files from the hosted mock guard * test: restore sync callback, audio redaction and langfuse export coverage, keep redis-compat filter on the moved file * ci: run the remaining router-keyword legacy tests on one node * test: refuse the redis write in-process instead of resolving an invalid host --------- Co-authored-by: yuneng <yuneng@berri.ai>
388 lines
13 KiB
Python
388 lines
13 KiB
Python
from unittest.mock import MagicMock, patch
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import json
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import datetime
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import asyncio
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from typing import Final
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import pytest
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import litellm
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from litellm import completion
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from litellm.caching.caching import Cache
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from litellm.caching.s3_cache import S3Cache
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@pytest.fixture
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def mock_s3_dependencies():
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mock_s3_client = MagicMock()
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with patch("boto3.client", return_value=mock_s3_client):
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yield {"s3_client": mock_s3_client}
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def test_s3_cache_set_cache(mock_s3_dependencies):
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"""Test basic set_cache functionality"""
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cache = S3Cache("test-bucket")
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test_value = {"key": "value", "number": 42}
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cache.set_cache("test_key", test_value)
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cache.s3_client.put_object.assert_called_once()
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call_args = cache.s3_client.put_object.call_args
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assert call_args[1]["Bucket"] == "test-bucket"
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assert call_args[1]["Key"] == "test_key"
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assert call_args[1]["Body"] == json.dumps(test_value)
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assert call_args[1]["ContentType"] == "application/json"
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assert call_args[1]["ContentLanguage"] == "en"
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assert call_args[1]["ContentDisposition"] == 'inline; filename="test_key.json"'
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def test_s3_cache_set_cache_with_ttl(mock_s3_dependencies):
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"""Test set_cache with TTL functionality"""
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cache = S3Cache("test-bucket")
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test_value = {"key": "value"}
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ttl = 3600 # 1 hour in seconds
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cache.set_cache("test_key", test_value, ttl=ttl)
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cache.s3_client.put_object.assert_called_once()
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call_args = cache.s3_client.put_object.call_args
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assert "Expires" in call_args[1]
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assert "CacheControl" in call_args[1]
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assert "max-age=3600" in call_args[1]["CacheControl"]
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def test_s3_cache_get_cache_no_expires_info_in_response(mock_s3_dependencies):
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"""Test basic get_cache functionality"""
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cache = S3Cache("test-bucket")
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mock_response = {"Body": MagicMock()}
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mock_response["Body"].read.return_value = b'{"key": "value", "number": 42}'
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cache.s3_client.get_object.return_value = mock_response
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result = cache.get_cache("test_key")
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cache.s3_client.get_object.assert_called_once_with(
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Bucket="test-bucket", Key="test_key"
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)
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assert result == {"key": "value", "number": 42}
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def test_s3_cache_get_cache_with_expires_valid(mock_s3_dependencies):
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"""Test get_cache when response contains Expires and cache entry is still valid"""
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cache = S3Cache("test-bucket")
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# Create a future expiration time (1 hour from now)
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future_time = datetime.datetime.now(datetime.timezone.utc) + datetime.timedelta(
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hours=1
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)
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mock_response = {"Body": MagicMock(), "Expires": future_time}
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mock_response["Body"].read.return_value = b'{"key": "value", "number": 42}'
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cache.s3_client.get_object.return_value = mock_response
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result = cache.get_cache("test_key")
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cache.s3_client.get_object.assert_called_once_with(
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Bucket="test-bucket", Key="test_key"
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)
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# Should return the cached value since it's not expired
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assert result == {"key": "value", "number": 42}
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def test_s3_cache_get_cache_with_expires_expired(mock_s3_dependencies):
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"""Test get_cache when response contains Expires and cache entry is no longer valid"""
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cache = S3Cache("test-bucket")
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# Create a past expiration time (1 hour ago)
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past_time = datetime.datetime.now(datetime.timezone.utc) - datetime.timedelta(
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hours=1
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)
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mock_response = {"Body": MagicMock(), "Expires": past_time}
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mock_response["Body"].read.return_value = b'{"key": "value", "number": 42}'
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cache.s3_client.get_object.return_value = mock_response
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result = cache.get_cache("test_key")
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cache.s3_client.get_object.assert_called_once_with(
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Bucket="test-bucket", Key="test_key"
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)
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# Should return None since the cache entry is expired
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assert result is None
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def test_s3_cache_get_cache_not_found(mock_s3_dependencies):
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"""Test get_cache when key is not found"""
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import botocore.exceptions
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cache = S3Cache("test-bucket")
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error_response = {"Error": {"Code": "NoSuchKey"}}
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cache.s3_client.get_object.side_effect = botocore.exceptions.ClientError(
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error_response, "GetObject"
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)
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result = cache.get_cache("nonexistent_key")
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cache.s3_client.get_object.assert_called_once_with(
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Bucket="test-bucket", Key="nonexistent_key"
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)
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assert result is None
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def test_s3_key_transformation():
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"""Test the _to_s3_key method for key transformation"""
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cache = S3Cache("test-bucket")
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# Test basic key transformation (colon to slash)
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result = cache._to_s3_key("user:123:session:456")
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assert result == "user/123/session/456"
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# Test with s3_path prefix
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cache_with_prefix = S3Cache("test-bucket", s3_path="cache/data")
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result = cache_with_prefix._to_s3_key("namespace:key")
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assert result == "cache/data/namespace/key"
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# Test with s3_path that has trailing slash
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cache_with_slash = S3Cache("test-bucket", s3_path="cache/data/")
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result = cache_with_slash._to_s3_key("namespace:key")
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assert result == "cache/data/namespace/key"
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def test_s3_cache_initialization():
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"""Test S3Cache initialization with various parameters"""
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# Test basic initialization
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cache = S3Cache("test-bucket")
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assert cache.bucket_name == "test-bucket"
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assert cache.key_prefix == ""
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# Test with s3_path
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cache_with_path = S3Cache("test-bucket", s3_path="my/cache/path")
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assert cache_with_path.key_prefix == "my/cache/path/"
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# ============================================================================
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# ASYNC TESTS
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# ============================================================================
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@pytest.mark.asyncio
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async def test_s3_cache_async_set_cache(mock_s3_dependencies):
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cache = S3Cache("test-bucket")
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test_value = {"key": "value", "number": 42}
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await cache.async_set_cache("test_key", test_value)
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cache.s3_client.put_object.assert_called_once()
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call_args = cache.s3_client.put_object.call_args
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assert call_args[1]["Bucket"] == "test-bucket"
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assert call_args[1]["Key"] == "test_key"
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assert call_args[1]["Body"] == json.dumps(test_value)
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assert call_args[1]["ContentType"] == "application/json"
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assert call_args[1]["ContentLanguage"] == "en"
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assert call_args[1]["ContentDisposition"] == 'inline; filename="test_key.json"'
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@pytest.mark.asyncio
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async def test_s3_cache_async_set_cache_with_ttl(mock_s3_dependencies):
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cache = S3Cache("test-bucket")
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test_value = {"key": "value"}
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ttl = 3600 # 1 hour in seconds
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await cache.async_set_cache("test_key", test_value, ttl=ttl)
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cache.s3_client.put_object.assert_called_once()
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call_args = cache.s3_client.put_object.call_args
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assert "Expires" in call_args[1]
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assert "CacheControl" in call_args[1]
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assert "max-age=3600" in call_args[1]["CacheControl"]
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@pytest.mark.asyncio
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async def test_s3_cache_async_get_cache(mock_s3_dependencies):
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cache = S3Cache("test-bucket")
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mock_response = {"Body": MagicMock()}
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mock_response["Body"].read.return_value = b'{"key": "value", "number": 42}'
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cache.s3_client.get_object.return_value = mock_response
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result = await cache.async_get_cache("test_key")
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cache.s3_client.get_object.assert_called_once_with(
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Bucket="test-bucket", Key="test_key"
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)
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assert result == {"key": "value", "number": 42}
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@pytest.mark.asyncio
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async def test_s3_cache_async_get_cache_not_found(mock_s3_dependencies):
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"""Test async_get_cache when key is not found"""
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import botocore.exceptions
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cache = S3Cache("test-bucket")
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error_response = {"Error": {"Code": "NoSuchKey"}}
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cache.s3_client.get_object.side_effect = botocore.exceptions.ClientError(
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error_response, "GetObject"
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)
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result = await cache.async_get_cache("nonexistent_key")
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cache.s3_client.get_object.assert_called_once_with(
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Bucket="test-bucket", Key="nonexistent_key"
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)
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assert result is None
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@pytest.mark.asyncio
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async def test_s3_cache_async_set_cache_pipeline(mock_s3_dependencies):
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"""Test async_set_cache_pipeline functionality"""
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cache = S3Cache("test-bucket")
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cache_list = [
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("key1", {"data": "value1"}),
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("key2", {"data": "value2"}),
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("key3", {"data": "value3"}),
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]
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await cache.async_set_cache_pipeline(cache_list)
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# Should have called put_object 3 times
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assert cache.s3_client.put_object.call_count == 3
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# Verify each call
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calls = cache.s3_client.put_object.call_args_list
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assert {(call.kwargs["Bucket"], call.kwargs["Key"], call.kwargs["Body"]) for call in calls} == {
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("test-bucket", key, json.dumps(value)) for key, value in cache_list
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}
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@pytest.mark.asyncio
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async def test_s3_cache_concurrent_async_operations(mock_s3_dependencies):
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"""Test concurrent async operations to ensure they don't block each other"""
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cache = S3Cache("test-bucket")
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# Create multiple concurrent set operations
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tasks = []
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for i in range(5):
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key = f"concurrent_key_{i}"
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value = {"id": i, "data": f"test_data_{i}"}
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tasks.append(cache.async_set_cache(key, value))
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# Execute all tasks concurrently
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await asyncio.gather(*tasks)
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# Verify all operations were called
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assert cache.s3_client.put_object.call_count == 5
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# Verify each call had correct parameters
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calls = cache.s3_client.put_object.call_args_list
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assert {call.kwargs["Key"] for call in calls} == {f"concurrent_key_{i}" for i in range(5)}
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for call in calls:
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assert call.kwargs["Bucket"] == "test-bucket"
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payload = json.loads(call.kwargs["Body"])
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assert call.kwargs["Key"] == f"concurrent_key_{payload['id']}"
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assert payload["data"] == f"test_data_{payload['id']}"
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@pytest.mark.asyncio
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async def test_s3_cache_async_error_handling(mock_s3_dependencies):
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"""Test that async methods handle errors gracefully"""
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cache = S3Cache("test-bucket")
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# Test async_set_cache error handling
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cache.s3_client.put_object.side_effect = Exception("S3 Error")
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# Should not raise exception, just log it
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await cache.async_set_cache("error_key", {"data": "value"})
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# Test async_get_cache error handling
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cache.s3_client.get_object.side_effect = Exception("S3 Error")
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result = await cache.async_get_cache("error_key")
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assert result is None
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@pytest.mark.asyncio
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async def test_s3_cache_async_with_key_prefix(mock_s3_dependencies):
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"""Test async operations with s3_path prefix"""
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cache = S3Cache("test-bucket", s3_path="cache/data")
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test_value = {"key": "value"}
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await cache.async_set_cache("namespace:key", test_value)
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cache.s3_client.put_object.assert_called_once()
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call_args = cache.s3_client.put_object.call_args
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# Should transform key with prefix and colon replacement
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assert call_args[1]["Key"] == "cache/data/namespace/key"
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def test_s3_cache_supports_async():
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"""Test that S3Cache now supports async operations"""
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from litellm.caching.caching import Cache, LiteLLMCacheType
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cache = Cache(type=LiteLLMCacheType.S3, s3_bucket_name="test-bucket")
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# Should now return True for async support
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assert cache.supports_async() is True
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@pytest.mark.asyncio
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async def test_s3_cache_async_disconnect(mock_s3_dependencies):
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"""Test async disconnect method"""
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cache = S3Cache("test-bucket")
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# Should not raise any exceptions
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await cache.disconnect()
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def test_s3_cache_stream_azure(
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mock_s3_dependencies: dict[str, MagicMock], monkeypatch: pytest.MonkeyPatch
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) -> None:
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import botocore.exceptions
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s3_client: Final = mock_s3_dependencies["s3_client"]
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s3_client.get_object.side_effect = botocore.exceptions.ClientError(
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{"Error": {"Code": "NoSuchKey"}}, "GetObject"
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)
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monkeypatch.setattr(
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litellm,
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"cache",
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Cache(type="s3", s3_bucket_name="test-bucket", s3_region_name="us-west-2"),
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)
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messages: Final = [{"role": "user", "content": "cache the completed stream"}]
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first_chunks: Final = tuple(
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completion(
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model="azure/gpt-4.1-mini",
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messages=messages,
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stream=True,
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mock_response="stream cached in s3",
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)
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)
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stored_body: Final = s3_client.put_object.call_args.kwargs["Body"]
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body_stream: Final = MagicMock()
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body_stream.read.return_value = stored_body.encode()
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s3_client.get_object.side_effect = None
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s3_client.get_object.return_value = {"Body": body_stream}
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second_chunks: Final = tuple(
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completion(
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model="azure/gpt-4.1-mini",
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messages=messages,
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stream=True,
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mock_response="different upstream response",
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)
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)
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assert "".join(chunk.choices[0].delta.content or "" for chunk in first_chunks) == "stream cached in s3"
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assert "".join(chunk.choices[0].delta.content or "" for chunk in second_chunks) == "stream cached in s3"
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