litellm/tests/test_litellm/integrations/test_s3.py
yassin 6e7de5fd20 test(s3): type the prompts-only test helpers
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-15 23:40:35 +00:00

314 lines
12 KiB
Python

import copy
import json
from datetime import datetime
from unittest.mock import MagicMock, patch
import pytest
import litellm
from litellm.constants import MAX_S3_OBJECT_DOWNLOAD_FILENAME_BYTES, MAX_S3_OBJECT_KEY_BYTES
from litellm.integrations.s3 import S3Logger, prompts_only_payload, resolve_s3_log_prompts_only
TEST_KMS_KEY_ARN = "arn:aws:kms:us-east-1:111122223333:key/test-key-id"
TEST_MESSAGES = [{"role": "user", "content": "Reply with exactly the word PINEAPPLE."}]
TEST_RESPONSE = {"choices": [{"message": {"role": "assistant", "content": "PINEAPPLE"}}]}
def _standard_logging_payload(response_id: str = "chatcmpl-test-id") -> dict:
return {
"id": response_id,
"messages": copy.deepcopy(TEST_MESSAGES),
"response": copy.deepcopy(TEST_RESPONSE),
"metadata": {"user_api_key_team_alias": None},
}
def _log_event_kwargs(response_id: str = "chatcmpl-test-id") -> dict:
return {
"litellm_params": {"metadata": {}},
"standard_logging_object": _standard_logging_payload(response_id),
}
def _run_log_event(
callback_params: dict, response_id: str = "chatcmpl-test-id", log_kwargs: dict[str, object] | None = None
) -> MagicMock:
original = litellm.s3_callback_params
litellm.s3_callback_params = callback_params
try:
with patch("boto3.client") as mock_boto3_client:
mock_s3_client = MagicMock()
mock_boto3_client.return_value = mock_s3_client
logger = S3Logger()
logger.log_event(
kwargs=_log_event_kwargs(response_id) if log_kwargs is None else log_kwargs,
response_obj={"id": response_id},
start_time=datetime(2026, 7, 30, 12, 0, 0),
end_time=datetime(2026, 7, 30, 12, 0, 1),
print_verbose=lambda *args, **kwargs: None,
)
return mock_s3_client
finally:
litellm.s3_callback_params = original
def test_put_object_includes_sse_kms_params_when_configured():
"""
When s3_server_side_encryption and s3_sse_kms_key_id are set in
s3_callback_params, put_object must receive ServerSideEncryption and
SSEKMSKeyId so objects land encrypted with the customer-managed key.
"""
mock_s3_client = _run_log_event(
{
"s3_bucket_name": "test-bucket",
"s3_region_name": "us-east-1",
"s3_server_side_encryption": "aws:kms",
"s3_sse_kms_key_id": TEST_KMS_KEY_ARN,
}
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert put_object_kwargs["ServerSideEncryption"] == "aws:kms"
assert put_object_kwargs["SSEKMSKeyId"] == TEST_KMS_KEY_ARN
def test_put_object_supports_sse_s3_without_key_id():
"""SSE-S3 (AES256) needs only ServerSideEncryption, no key id."""
mock_s3_client = _run_log_event(
{
"s3_bucket_name": "test-bucket",
"s3_region_name": "us-east-1",
"s3_server_side_encryption": "AES256",
}
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert put_object_kwargs["ServerSideEncryption"] == "AES256"
assert "SSEKMSKeyId" not in put_object_kwargs
def test_put_object_omits_sse_params_by_default():
"""Without SSE config, put_object kwargs must stay unchanged."""
mock_s3_client = _run_log_event(
{
"s3_bucket_name": "test-bucket",
"s3_region_name": "us-east-1",
}
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert "ServerSideEncryption" not in put_object_kwargs
assert "SSEKMSKeyId" not in put_object_kwargs
def test_put_object_infers_aws_kms_when_only_key_id_set():
"""A key id without an algorithm must infer aws:kms instead of sending an invalid request."""
mock_s3_client = _run_log_event(
{
"s3_bucket_name": "test-bucket",
"s3_region_name": "us-east-1",
"s3_sse_kms_key_id": TEST_KMS_KEY_ARN,
}
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert put_object_kwargs["ServerSideEncryption"] == "aws:kms"
assert put_object_kwargs["SSEKMSKeyId"] == TEST_KMS_KEY_ARN
def test_put_object_drops_key_id_when_algorithm_is_not_kms():
"""AES256 plus a key id is invalid for S3; the key id must be dropped, not sent."""
mock_s3_client = _run_log_event(
{
"s3_bucket_name": "test-bucket",
"s3_region_name": "us-east-1",
"s3_server_side_encryption": "AES256",
"s3_sse_kms_key_id": TEST_KMS_KEY_ARN,
}
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert put_object_kwargs["ServerSideEncryption"] == "AES256"
assert "SSEKMSKeyId" not in put_object_kwargs
def test_non_string_algorithm_is_dropped_and_valid_key_id_is_rescued():
"""
A YAML boolean in s3_server_side_encryption must not crash logger init and
must not discard the valid key id; aws:kms is inferred from the key id.
"""
mock_s3_client = _run_log_event(
{
"s3_bucket_name": "test-bucket",
"s3_region_name": "us-east-1",
"s3_server_side_encryption": True,
"s3_sse_kms_key_id": TEST_KMS_KEY_ARN,
}
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert put_object_kwargs["ServerSideEncryption"] == "aws:kms"
assert put_object_kwargs["SSEKMSKeyId"] == TEST_KMS_KEY_ARN
def test_non_string_key_id_is_dropped_and_valid_algorithm_is_kept():
"""A mistyped key id (unquoted YAML number) must not disable the valid algorithm."""
mock_s3_client = _run_log_event(
{
"s3_bucket_name": "test-bucket",
"s3_region_name": "us-east-1",
"s3_server_side_encryption": "aws:kms",
"s3_sse_kms_key_id": 12345,
}
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert put_object_kwargs["ServerSideEncryption"] == "aws:kms"
assert "SSEKMSKeyId" not in put_object_kwargs
def test_put_object_key_and_filename_are_bounded_for_an_oversized_response_id():
"""The sync logger bounds both the key and the Content-Disposition filename."""
mock_s3_client = _run_log_event(
{"s3_bucket_name": "test-bucket", "s3_region_name": "us-west-2", "s3_path": "logs"},
response_id="resp_" + "A" * 1100,
)
put_object_kwargs = mock_s3_client.put_object.call_args.kwargs
assert len(put_object_kwargs["Key"].encode("utf-8")) <= MAX_S3_OBJECT_KEY_BYTES
assert put_object_kwargs["Key"].startswith("logs/2026-07-30/time-12-00-00-000000_resp_")
filename = put_object_kwargs["ContentDisposition"].removeprefix('inline; filename="').removesuffix('"')
assert len(filename.encode("utf-8")) <= MAX_S3_OBJECT_DOWNLOAD_FILENAME_BYTES
def test_put_object_keeps_the_configured_path_intact_when_only_the_id_has_to_shrink():
"""A long configured s3_path survives whole when the id can be shortened instead."""
long_path = "litellm-prod-logs/" + "t" * 921
mock_s3_client = _run_log_event(
{"s3_bucket_name": "test-bucket", "s3_region_name": "us-west-2", "s3_path": long_path},
response_id="resp_" + "B" * 100,
)
key = mock_s3_client.put_object.call_args.kwargs["Key"]
assert key.startswith(long_path + "/2026-07-30/")
assert len(key.encode("utf-8")) == MAX_S3_OBJECT_KEY_BYTES
def _uploaded_body(mock_s3_client: MagicMock) -> dict[str, object]:
return json.loads(mock_s3_client.put_object.call_args.kwargs["Body"])
def test_log_event_prompts_only_drops_response_and_keeps_messages(monkeypatch: pytest.MonkeyPatch):
monkeypatch.delenv("S3_LOG_PROMPTS_ONLY", raising=False)
log_kwargs = _log_event_kwargs()
original_payload = copy.deepcopy(log_kwargs["standard_logging_object"])
mock_s3_client = _run_log_event(
{"s3_bucket_name": "test-bucket", "s3_region_name": "us-east-1", "s3_log_prompts_only": True},
log_kwargs=log_kwargs,
)
body = _uploaded_body(mock_s3_client)
assert body["messages"] == TEST_MESSAGES
assert body["response"] is None
assert body["id"] == "chatcmpl-test-id"
assert log_kwargs["standard_logging_object"] == original_payload
def test_log_event_default_keeps_response(monkeypatch: pytest.MonkeyPatch):
monkeypatch.delenv("S3_LOG_PROMPTS_ONLY", raising=False)
mock_s3_client = _run_log_event({"s3_bucket_name": "test-bucket", "s3_region_name": "us-east-1"})
body = _uploaded_body(mock_s3_client)
assert body["response"] == TEST_RESPONSE
assert body["messages"] == TEST_MESSAGES
def test_log_event_reads_prompts_only_env_var_at_log_time(monkeypatch: pytest.MonkeyPatch):
monkeypatch.delenv("S3_LOG_PROMPTS_ONLY", raising=False)
original = litellm.s3_callback_params
litellm.s3_callback_params = {"s3_bucket_name": "test-bucket", "s3_region_name": "us-east-1"}
try:
with patch("boto3.client") as mock_boto3_client:
mock_s3_client = MagicMock()
mock_boto3_client.return_value = mock_s3_client
logger = S3Logger()
monkeypatch.setenv("S3_LOG_PROMPTS_ONLY", "true")
logger.log_event(
kwargs=_log_event_kwargs(),
response_obj={"id": "chatcmpl-test-id"},
start_time=datetime(2026, 7, 30, 12, 0, 0),
end_time=datetime(2026, 7, 30, 12, 0, 1),
print_verbose=lambda *args, **kwargs: None,
)
finally:
litellm.s3_callback_params = original
body = _uploaded_body(mock_s3_client)
assert body["response"] is None
assert body["messages"] == TEST_MESSAGES
def test_log_event_explicit_false_param_beats_env_var(monkeypatch: pytest.MonkeyPatch):
monkeypatch.setenv("S3_LOG_PROMPTS_ONLY", "true")
mock_s3_client = _run_log_event(
{"s3_bucket_name": "test-bucket", "s3_region_name": "us-east-1", "s3_log_prompts_only": False}
)
assert _uploaded_body(mock_s3_client)["response"] == TEST_RESPONSE
def test_s3_logger_init_does_not_mutate_global_callback_params(monkeypatch: pytest.MonkeyPatch):
monkeypatch.setenv("MY_S3_BUCKET", "resolved-bucket")
callback_params = {"s3_bucket_name": "os.environ/MY_S3_BUCKET", "s3_region_name": "us-east-1"}
snapshot = copy.deepcopy(callback_params)
original = litellm.s3_callback_params
litellm.s3_callback_params = callback_params
try:
with patch("boto3.client"):
logger = S3Logger()
finally:
litellm.s3_callback_params = original
assert logger.bucket_name == "resolved-bucket"
assert callback_params == snapshot
@pytest.mark.parametrize(
"configured,env_value,expected",
[
(True, None, True),
(False, "true", False),
("true", None, True),
("False", "true", False),
("1", None, True),
("0", None, False),
(" yes ", None, True),
(None, None, False),
(None, "true", True),
(None, "false", False),
(None, "", False),
("", "true", False),
],
)
def test_resolve_s3_log_prompts_only(configured: object, env_value: str | None, expected: bool):
environ = {} if env_value is None else {"S3_LOG_PROMPTS_ONLY": env_value}
assert resolve_s3_log_prompts_only(configured, environ) is expected
def test_resolve_s3_log_prompts_only_unparseable_value_fails_toward_prompts_only():
assert resolve_s3_log_prompts_only("enabled", {}) is True
def test_prompts_only_payload_returns_copy_with_response_cleared():
payload = _standard_logging_payload()
snapshot = copy.deepcopy(payload)
stripped = prompts_only_payload(payload)
assert stripped["response"] is None
assert stripped["messages"] == TEST_MESSAGES
assert stripped is not payload
assert payload == snapshot