mirror of
https://github.com/tiennm99/litellm.git
synced 2026-08-01 16:21:12 +00:00
Merge pull request #25810 from BerriAI/litellm_bedrock_api_response_null_type_handling
bedrock api response null type handling
This commit is contained in:
@@ -83,7 +83,12 @@ def _redact_pii_matches(response_json: dict) -> dict:
|
||||
redacted_response = copy.deepcopy(response_json)
|
||||
|
||||
# Get assessments from the response
|
||||
assessments = redacted_response.get("assessments", [])
|
||||
# NOTE: We use `.get("key") or []` instead of `.get("key", [])` because
|
||||
# the Bedrock API can return explicit `null` for list fields (e.g. "regexes": null).
|
||||
# In Python, dict.get("key", []) returns None (not []) when the key exists
|
||||
# with a None/null value. The `or []` ensures we always get an iterable,
|
||||
# preventing "TypeError: 'NoneType' object is not iterable".
|
||||
assessments = redacted_response.get("assessments") or []
|
||||
if not assessments:
|
||||
return redacted_response
|
||||
|
||||
@@ -91,13 +96,13 @@ def _redact_pii_matches(response_json: dict) -> dict:
|
||||
# Redact PII entities in sensitive information policy
|
||||
sensitive_info_policy = assessment.get("sensitiveInformationPolicy")
|
||||
if sensitive_info_policy:
|
||||
pii_entities = sensitive_info_policy.get("piiEntities", [])
|
||||
pii_entities = sensitive_info_policy.get("piiEntities") or []
|
||||
for pii_entity in pii_entities:
|
||||
if "match" in pii_entity:
|
||||
pii_entity["match"] = "[REDACTED]"
|
||||
|
||||
# Redact regex matches
|
||||
regexes = sensitive_info_policy.get("regexes", [])
|
||||
regexes = sensitive_info_policy.get("regexes") or []
|
||||
for regex_match in regexes:
|
||||
if "match" in regex_match:
|
||||
regex_match["match"] = "[REDACTED]"
|
||||
@@ -105,12 +110,12 @@ def _redact_pii_matches(response_json: dict) -> dict:
|
||||
# Redact custom word matches in word policy
|
||||
word_policy = assessment.get("wordPolicy")
|
||||
if word_policy:
|
||||
custom_words = word_policy.get("customWords", [])
|
||||
custom_words = word_policy.get("customWords") or []
|
||||
for custom_word in custom_words:
|
||||
if "match" in custom_word:
|
||||
custom_word["match"] = "[REDACTED]"
|
||||
|
||||
managed_words = word_policy.get("managedWordLists", [])
|
||||
managed_words = word_policy.get("managedWordLists") or []
|
||||
for managed_word in managed_words:
|
||||
if "match" in managed_word:
|
||||
managed_word["match"] = "[REDACTED]"
|
||||
@@ -825,7 +830,9 @@ class BedrockGuardrail(CustomGuardrail, BaseAWSLLM):
|
||||
return False
|
||||
|
||||
# Check assessments to determine if any actions were BLOCKED (vs ANONYMIZED)
|
||||
assessments = response.get("assessments", [])
|
||||
# NOTE: Use `or []` instead of default param to handle explicit null from Bedrock API.
|
||||
# See _redact_pii_matches() for detailed explanation of the null safety pattern.
|
||||
assessments = response.get("assessments") or []
|
||||
if not assessments:
|
||||
return False
|
||||
|
||||
@@ -833,7 +840,7 @@ class BedrockGuardrail(CustomGuardrail, BaseAWSLLM):
|
||||
# Check topic policy
|
||||
topic_policy = assessment.get("topicPolicy")
|
||||
if topic_policy:
|
||||
topics = topic_policy.get("topics", [])
|
||||
topics = topic_policy.get("topics") or []
|
||||
for topic in topics:
|
||||
if topic.get("action") == "BLOCKED":
|
||||
return True
|
||||
@@ -841,7 +848,7 @@ class BedrockGuardrail(CustomGuardrail, BaseAWSLLM):
|
||||
# Check content policy
|
||||
content_policy = assessment.get("contentPolicy")
|
||||
if content_policy:
|
||||
filters = content_policy.get("filters", [])
|
||||
filters = content_policy.get("filters") or []
|
||||
for filter_item in filters:
|
||||
if filter_item.get("action") == "BLOCKED":
|
||||
return True
|
||||
@@ -849,11 +856,11 @@ class BedrockGuardrail(CustomGuardrail, BaseAWSLLM):
|
||||
# Check word policy
|
||||
word_policy = assessment.get("wordPolicy")
|
||||
if word_policy:
|
||||
custom_words = word_policy.get("customWords", [])
|
||||
custom_words = word_policy.get("customWords") or []
|
||||
for custom_word in custom_words:
|
||||
if custom_word.get("action") == "BLOCKED":
|
||||
return True
|
||||
managed_words = word_policy.get("managedWordLists", [])
|
||||
managed_words = word_policy.get("managedWordLists") or []
|
||||
for managed_word in managed_words:
|
||||
if managed_word.get("action") == "BLOCKED":
|
||||
return True
|
||||
@@ -861,12 +868,12 @@ class BedrockGuardrail(CustomGuardrail, BaseAWSLLM):
|
||||
# Check sensitive information policy
|
||||
sensitive_info_policy = assessment.get("sensitiveInformationPolicy")
|
||||
if sensitive_info_policy:
|
||||
pii_entities = sensitive_info_policy.get("piiEntities", [])
|
||||
pii_entities = sensitive_info_policy.get("piiEntities") or []
|
||||
if pii_entities:
|
||||
for pii_entity in pii_entities:
|
||||
if pii_entity.get("action") == "BLOCKED":
|
||||
return True
|
||||
regexes = sensitive_info_policy.get("regexes", [])
|
||||
regexes = sensitive_info_policy.get("regexes") or []
|
||||
if regexes:
|
||||
for regex in regexes:
|
||||
if regex.get("action") == "BLOCKED":
|
||||
@@ -875,7 +882,7 @@ class BedrockGuardrail(CustomGuardrail, BaseAWSLLM):
|
||||
# Check contextual grounding policy
|
||||
contextual_grounding_policy = assessment.get("contextualGroundingPolicy")
|
||||
if contextual_grounding_policy:
|
||||
grounding_filters = contextual_grounding_policy.get("filters", [])
|
||||
grounding_filters = contextual_grounding_policy.get("filters") or []
|
||||
for grounding_filter in grounding_filters:
|
||||
if grounding_filter.get("action") == "BLOCKED":
|
||||
return True
|
||||
@@ -1534,7 +1541,9 @@ class BedrockGuardrail(CustomGuardrail, BaseAWSLLM):
|
||||
Raises:
|
||||
Exception: If content is blocked by Bedrock guardrail
|
||||
"""
|
||||
texts = inputs.get("texts", [])
|
||||
# NOTE: Use `or []` to handle case where inputs["texts"] is explicitly None.
|
||||
# dict.get("texts", []) would return None if the key exists with a None value.
|
||||
texts = inputs.get("texts") or []
|
||||
try:
|
||||
verbose_proxy_logger.debug(
|
||||
f"Bedrock Guardrail: Applying guardrail to {len(texts)} text(s)"
|
||||
|
||||
@@ -5,7 +5,10 @@ import pytest
|
||||
|
||||
sys.path.insert(0, os.path.abspath("../.."))
|
||||
import litellm
|
||||
from litellm.proxy.guardrails.guardrail_hooks.bedrock_guardrails import BedrockGuardrail
|
||||
from litellm.proxy.guardrails.guardrail_hooks.bedrock_guardrails import (
|
||||
BedrockGuardrail,
|
||||
_redact_pii_matches,
|
||||
)
|
||||
from litellm.proxy._types import UserAPIKeyAuth
|
||||
from litellm.caching import DualCache
|
||||
from unittest.mock import MagicMock, AsyncMock, patch
|
||||
@@ -1601,3 +1604,128 @@ async def test_bedrock_guardrail_post_call_success_hook_no_output_text():
|
||||
# If no error is raised and result is None, then the test passes
|
||||
assert result is None
|
||||
print("✅ No output text in response test passed")
|
||||
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test__redact_pii_matches_null_list_fields():
|
||||
"""Test that explicit null values from Bedrock API are handled correctly.
|
||||
|
||||
The Bedrock API can return explicit JSON null for list fields like
|
||||
piiEntities, regexes, customWords, managedWordLists. This would cause
|
||||
TypeError: 'NoneType' object is not iterable if not handled.
|
||||
"""
|
||||
# Test 1: null piiEntities and regexes
|
||||
response_with_null_pii = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": None,
|
||||
"regexes": None,
|
||||
}
|
||||
}
|
||||
],
|
||||
}
|
||||
redacted = _redact_pii_matches(response_with_null_pii)
|
||||
assert redacted is not None
|
||||
assert redacted["assessments"][0]["sensitiveInformationPolicy"]["piiEntities"] is None
|
||||
assert redacted["assessments"][0]["sensitiveInformationPolicy"]["regexes"] is None
|
||||
|
||||
# Test 2: null customWords and managedWordLists
|
||||
response_with_null_words = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"wordPolicy": {
|
||||
"customWords": None,
|
||||
"managedWordLists": None,
|
||||
}
|
||||
}
|
||||
],
|
||||
}
|
||||
redacted = _redact_pii_matches(response_with_null_words)
|
||||
assert redacted is not None
|
||||
assert redacted["assessments"][0]["wordPolicy"]["customWords"] is None
|
||||
assert redacted["assessments"][0]["wordPolicy"]["managedWordLists"] is None
|
||||
|
||||
# Test 3: null assessments at top level
|
||||
response_with_null_assessments = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": None,
|
||||
}
|
||||
redacted = _redact_pii_matches(response_with_null_assessments)
|
||||
assert redacted is not None
|
||||
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test__redact_pii_matches_malformed_response():
|
||||
"""Test _redact_pii_matches with malformed response (should not crash)"""
|
||||
|
||||
# Test with completely malformed response
|
||||
malformed_response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": "not_a_list",
|
||||
}
|
||||
redacted_response = _redact_pii_matches(malformed_response)
|
||||
assert redacted_response == malformed_response
|
||||
|
||||
# Test with missing keys
|
||||
missing_keys_response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
}
|
||||
redacted_response = _redact_pii_matches(missing_keys_response)
|
||||
assert redacted_response == missing_keys_response
|
||||
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_raise_guardrail_blocked_exception_null_fields():
|
||||
"""Test that _should_raise_guardrail_blocked_exception handles null list fields.
|
||||
|
||||
Validates the or [] null-safety pattern works for all policy fields
|
||||
in _should_raise_guardrail_blocked_exception.
|
||||
"""
|
||||
guardrail = BedrockGuardrail(
|
||||
guardrailIdentifier="test-guardrail", guardrailVersion="DRAFT"
|
||||
)
|
||||
|
||||
# Test with null assessments
|
||||
response_null_assessments = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": None,
|
||||
}
|
||||
assert guardrail._should_raise_guardrail_blocked_exception(response_null_assessments) is False
|
||||
|
||||
# Test with null topics in topicPolicy
|
||||
response_null_topics = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [{"topicPolicy": {"topics": None}}],
|
||||
}
|
||||
assert guardrail._should_raise_guardrail_blocked_exception(response_null_topics) is False
|
||||
|
||||
# Test with null filters in contentPolicy
|
||||
response_null_filters = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [{"contentPolicy": {"filters": None}}],
|
||||
}
|
||||
assert guardrail._should_raise_guardrail_blocked_exception(response_null_filters) is False
|
||||
|
||||
# Test with null customWords and managedWordLists in wordPolicy
|
||||
response_null_words = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [{"wordPolicy": {"customWords": None, "managedWordLists": None}}],
|
||||
}
|
||||
assert guardrail._should_raise_guardrail_blocked_exception(response_null_words) is False
|
||||
|
||||
# Test with null piiEntities and regexes in sensitiveInformationPolicy
|
||||
response_null_pii = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [{"sensitiveInformationPolicy": {"piiEntities": None, "regexes": None}}],
|
||||
}
|
||||
assert guardrail._should_raise_guardrail_blocked_exception(response_null_pii) is False
|
||||
|
||||
# Test with null filters in contextualGroundingPolicy
|
||||
response_null_grounding = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [{"contextualGroundingPolicy": {"filters": None}}],
|
||||
}
|
||||
assert guardrail._should_raise_guardrail_blocked_exception(response_null_grounding) is False
|
||||
|
||||
@@ -1190,6 +1190,483 @@ async def test_bedrock_guardrail_blocked_content_with_masking_enabled():
|
||||
print("✅ BLOCKED content with masking enabled raises exception correctly")
|
||||
|
||||
|
||||
# ──────────────────────────────────────────────────────────────────────────────
|
||||
# Null-safety tests for Bedrock guardrail responses
|
||||
#
|
||||
# The Bedrock ApplyGuardrail API can return explicit null/None for list fields
|
||||
# such as "regexes", "piiEntities", "topics", "filters", "customWords", and
|
||||
# "managedWordLists" when a particular policy category is present in the
|
||||
# assessment but has no matches.
|
||||
#
|
||||
# Python's dict.get("key", []) returns None (NOT []) when the key exists with
|
||||
# a None value. The `or []` fallback ensures we always iterate over a list.
|
||||
#
|
||||
# Without the fix, iterating over None raises:
|
||||
# TypeError: 'NoneType' object is not iterable
|
||||
# which surfaces to callers as:
|
||||
# openai.InternalServerError: Error code: 500
|
||||
# {'error': {'message': "Bedrock guardrail failed: 'NoneType' object is not iterable", ...}}
|
||||
# ──────────────────────────────────────────────────────────────────────────────
|
||||
|
||||
|
||||
class TestRedactPiiMatchesNullSafety:
|
||||
"""Tests for _redact_pii_matches handling of null/None list fields from Bedrock API."""
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_regexes_in_sensitive_info_policy(self):
|
||||
"""Bedrock can return regexes: null while piiEntities has data.
|
||||
|
||||
Real-world scenario: guardrail detects PII (e.g. EMAIL) but has no
|
||||
custom regex patterns configured, so the API returns regexes: null.
|
||||
"""
|
||||
response = {
|
||||
"action": "NONE",
|
||||
"actionReason": "No action.",
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": [
|
||||
{
|
||||
"action": "NONE",
|
||||
"detected": True,
|
||||
"match": "joebloggs@gmail.com",
|
||||
"type": "EMAIL",
|
||||
}
|
||||
],
|
||||
"regexes": None, # Explicit null from Bedrock API
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
# Should not raise TypeError: 'NoneType' object is not iterable
|
||||
redacted = _redact_pii_matches(response)
|
||||
|
||||
# PII match should be redacted
|
||||
pii = redacted["assessments"][0]["sensitiveInformationPolicy"]["piiEntities"]
|
||||
assert pii[0]["match"] == "[REDACTED]"
|
||||
assert pii[0]["type"] == "EMAIL"
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_pii_entities_in_sensitive_info_policy(self):
|
||||
"""Bedrock can return piiEntities: null while regexes has data."""
|
||||
response = {
|
||||
"action": "NONE",
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": None, # null from Bedrock API
|
||||
"regexes": [
|
||||
{
|
||||
"name": "CUSTOM_PATTERN",
|
||||
"match": "secret-abc-123",
|
||||
"action": "BLOCKED",
|
||||
}
|
||||
],
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
redacted = _redact_pii_matches(response)
|
||||
|
||||
regexes = redacted["assessments"][0]["sensitiveInformationPolicy"]["regexes"]
|
||||
assert regexes[0]["match"] == "[REDACTED]"
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_custom_words_and_managed_words(self):
|
||||
"""Bedrock can return null for customWords and managedWordLists in wordPolicy."""
|
||||
response = {
|
||||
"action": "NONE",
|
||||
"assessments": [
|
||||
{
|
||||
"wordPolicy": {
|
||||
"customWords": None, # null from Bedrock API
|
||||
"managedWordLists": None, # null from Bedrock API
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
# Should not raise TypeError
|
||||
redacted = _redact_pii_matches(response)
|
||||
|
||||
# Values should remain None (no crash)
|
||||
assert redacted["assessments"][0]["wordPolicy"]["customWords"] is None
|
||||
assert redacted["assessments"][0]["wordPolicy"]["managedWordLists"] is None
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_assessments_list(self):
|
||||
"""Bedrock can return assessments: null."""
|
||||
response = {
|
||||
"action": "NONE",
|
||||
"assessments": None, # null from Bedrock API
|
||||
}
|
||||
|
||||
# Should not raise TypeError
|
||||
redacted = _redact_pii_matches(response)
|
||||
assert redacted["assessments"] is None
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_all_null_policy_sub_lists_together(self):
|
||||
"""All sub-list fields are null at the same time — worst-case scenario."""
|
||||
response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": None,
|
||||
"regexes": None,
|
||||
},
|
||||
"wordPolicy": {
|
||||
"customWords": None,
|
||||
"managedWordLists": None,
|
||||
},
|
||||
"topicPolicy": None,
|
||||
"contentPolicy": None,
|
||||
"contextualGroundingPolicy": None,
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
# Should not raise any exception
|
||||
redacted = _redact_pii_matches(response)
|
||||
assert redacted is not None
|
||||
|
||||
|
||||
class TestShouldRaiseGuardrailBlockedExceptionNullSafety:
|
||||
"""Tests for _should_raise_guardrail_blocked_exception handling of null list fields."""
|
||||
|
||||
def _create_guardrail(self) -> BedrockGuardrail:
|
||||
return BedrockGuardrail(
|
||||
guardrailIdentifier="test-guardrail", guardrailVersion="DRAFT"
|
||||
)
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_all_null_policy_sub_lists(self):
|
||||
"""All policy sub-lists are null — should not crash, should return False."""
|
||||
guardrail = self._create_guardrail()
|
||||
|
||||
response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"topicPolicy": {
|
||||
"topics": None, # null from Bedrock API
|
||||
},
|
||||
"contentPolicy": {
|
||||
"filters": None, # null
|
||||
},
|
||||
"wordPolicy": {
|
||||
"customWords": None, # null
|
||||
"managedWordLists": None, # null
|
||||
},
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": None, # null
|
||||
"regexes": None, # null
|
||||
},
|
||||
"contextualGroundingPolicy": {
|
||||
"filters": None, # null
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
# No BLOCKED actions found (all lists null) → should return False
|
||||
result = guardrail._should_raise_guardrail_blocked_exception(response)
|
||||
assert result is False
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_detect_blocked_despite_other_null_lists(self):
|
||||
"""A mix of null lists and a real BLOCKED action — should still detect it."""
|
||||
guardrail = self._create_guardrail()
|
||||
|
||||
response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"topicPolicy": {
|
||||
"topics": None, # null — should not crash
|
||||
},
|
||||
"contentPolicy": {
|
||||
"filters": [
|
||||
{
|
||||
"type": "HATE",
|
||||
"confidence": "HIGH",
|
||||
"action": "BLOCKED",
|
||||
}
|
||||
],
|
||||
},
|
||||
"wordPolicy": {
|
||||
"customWords": None, # null
|
||||
"managedWordLists": None, # null
|
||||
},
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": None, # null
|
||||
"regexes": None, # null
|
||||
},
|
||||
"contextualGroundingPolicy": None, # entire policy is null
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
# Should return True because contentPolicy has a BLOCKED filter
|
||||
result = guardrail._should_raise_guardrail_blocked_exception(response)
|
||||
assert result is True
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_assessments_list(self):
|
||||
"""assessments itself is null — should return False."""
|
||||
guardrail = self._create_guardrail()
|
||||
|
||||
response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": None, # null from Bedrock API
|
||||
}
|
||||
|
||||
result = guardrail._should_raise_guardrail_blocked_exception(response)
|
||||
assert result is False
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_topics_with_blocked_word_policy(self):
|
||||
"""topics is null but wordPolicy has a BLOCKED customWord."""
|
||||
guardrail = self._create_guardrail()
|
||||
|
||||
response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"topicPolicy": {
|
||||
"topics": None,
|
||||
},
|
||||
"wordPolicy": {
|
||||
"customWords": [
|
||||
{"match": "badword", "action": "BLOCKED"}
|
||||
],
|
||||
"managedWordLists": None,
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
result = guardrail._should_raise_guardrail_blocked_exception(response)
|
||||
assert result is True
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_pii_with_blocked_regex(self):
|
||||
"""piiEntities is null but regexes has a BLOCKED match."""
|
||||
guardrail = self._create_guardrail()
|
||||
|
||||
response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": None,
|
||||
"regexes": [
|
||||
{"name": "SSN", "match": "123-45-6789", "action": "BLOCKED"}
|
||||
],
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
result = guardrail._should_raise_guardrail_blocked_exception(response)
|
||||
assert result is True
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_null_grounding_filters(self):
|
||||
"""contextualGroundingPolicy.filters is null — should not crash."""
|
||||
guardrail = self._create_guardrail()
|
||||
|
||||
response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"assessments": [
|
||||
{
|
||||
"contextualGroundingPolicy": {
|
||||
"filters": None,
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
result = guardrail._should_raise_guardrail_blocked_exception(response)
|
||||
assert result is False
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_not_crash_when_action_is_not_intervened(self):
|
||||
"""If action != GUARDRAIL_INTERVENED, null lists should never be reached."""
|
||||
guardrail = self._create_guardrail()
|
||||
|
||||
response = {
|
||||
"action": "NONE",
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": None,
|
||||
"regexes": None,
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
result = guardrail._should_raise_guardrail_blocked_exception(response)
|
||||
assert result is False
|
||||
|
||||
|
||||
class TestApplyGuardrailNullSafety:
|
||||
"""Tests for apply_guardrail handling of null/None texts input."""
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_none_texts_in_inputs(self):
|
||||
"""inputs[\"texts\"] is explicitly None — should not crash."""
|
||||
guardrail = BedrockGuardrail(
|
||||
guardrailIdentifier="test-guardrail", guardrailVersion="DRAFT"
|
||||
)
|
||||
|
||||
inputs = {"texts": None} # Explicit None
|
||||
|
||||
mock_credentials = MagicMock()
|
||||
|
||||
with patch.object(
|
||||
guardrail.async_handler, "post", new_callable=AsyncMock
|
||||
) as mock_post, patch.object(
|
||||
guardrail, "_load_credentials", return_value=(mock_credentials, "us-east-1")
|
||||
), patch.object(
|
||||
guardrail, "_prepare_request", return_value=MagicMock()
|
||||
):
|
||||
# With empty texts (from None → []), no Bedrock API call should be made
|
||||
result = await guardrail.apply_guardrail(
|
||||
inputs=inputs,
|
||||
request_data={},
|
||||
input_type="request",
|
||||
)
|
||||
|
||||
# Should return empty texts without crashing
|
||||
assert result.get("texts") == []
|
||||
# No Bedrock API call should be made for empty input
|
||||
mock_post.assert_not_called()
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_should_handle_missing_texts_key(self):
|
||||
"""inputs has no \"texts\" key at all — should not crash."""
|
||||
guardrail = BedrockGuardrail(
|
||||
guardrailIdentifier="test-guardrail", guardrailVersion="DRAFT"
|
||||
)
|
||||
|
||||
inputs = {} # No "texts" key
|
||||
|
||||
mock_credentials = MagicMock()
|
||||
|
||||
with patch.object(
|
||||
guardrail.async_handler, "post", new_callable=AsyncMock
|
||||
) as mock_post, patch.object(
|
||||
guardrail, "_load_credentials", return_value=(mock_credentials, "us-east-1")
|
||||
), patch.object(
|
||||
guardrail, "_prepare_request", return_value=MagicMock()
|
||||
):
|
||||
result = await guardrail.apply_guardrail(
|
||||
inputs=inputs,
|
||||
request_data={},
|
||||
input_type="request",
|
||||
)
|
||||
|
||||
assert result.get("texts") == []
|
||||
mock_post.assert_not_called()
|
||||
|
||||
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_bedrock_guardrail_blocked_vs_anonymized_actions():
|
||||
"""Test that BLOCKED actions raise exceptions but ANONYMIZED actions do not"""
|
||||
guardrail = BedrockGuardrail(
|
||||
guardrailIdentifier="test-guardrail", guardrailVersion="DRAFT"
|
||||
)
|
||||
|
||||
# Test 1: ANONYMIZED action should NOT raise exception
|
||||
anonymized_response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"outputs": [{"text": "Hello, my phone number is {PHONE}"}],
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": [
|
||||
{
|
||||
"type": "PHONE",
|
||||
"match": "+1 412 555 1212",
|
||||
"action": "ANONYMIZED",
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
should_raise = guardrail._should_raise_guardrail_blocked_exception(
|
||||
anonymized_response
|
||||
)
|
||||
assert should_raise is False, "ANONYMIZED actions should not raise exceptions"
|
||||
|
||||
# Test 2: BLOCKED action should raise exception
|
||||
blocked_response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"outputs": [{"text": "I can't provide that information."}],
|
||||
"assessments": [
|
||||
{
|
||||
"topicPolicy": {
|
||||
"topics": [
|
||||
{"name": "Sensitive Topic", "type": "DENY", "action": "BLOCKED"}
|
||||
]
|
||||
}
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
should_raise = guardrail._should_raise_guardrail_blocked_exception(blocked_response)
|
||||
assert should_raise is True, "BLOCKED actions should raise exceptions"
|
||||
|
||||
# Test 3: Mixed actions - should raise if ANY action is BLOCKED
|
||||
mixed_response = {
|
||||
"action": "GUARDRAIL_INTERVENED",
|
||||
"outputs": [{"text": "I can't provide that information."}],
|
||||
"assessments": [
|
||||
{
|
||||
"sensitiveInformationPolicy": {
|
||||
"piiEntities": [
|
||||
{
|
||||
"type": "PHONE",
|
||||
"match": "+1 412 555 1212",
|
||||
"action": "ANONYMIZED",
|
||||
}
|
||||
]
|
||||
},
|
||||
"topicPolicy": {
|
||||
"topics": [
|
||||
{"name": "Blocked Topic", "type": "DENY", "action": "BLOCKED"}
|
||||
]
|
||||
},
|
||||
}
|
||||
],
|
||||
}
|
||||
|
||||
should_raise = guardrail._should_raise_guardrail_blocked_exception(mixed_response)
|
||||
assert (
|
||||
should_raise is True
|
||||
), "Mixed actions with any BLOCKED should raise exceptions"
|
||||
|
||||
# Test 4: NONE action should not raise exception
|
||||
none_response = {
|
||||
"action": "NONE",
|
||||
"outputs": [],
|
||||
"assessments": [],
|
||||
}
|
||||
|
||||
should_raise = guardrail._should_raise_guardrail_blocked_exception(none_response)
|
||||
assert should_raise is False, "NONE action should not raise exceptions"
|
||||
|
||||
print("\u2705 BLOCKED vs ANONYMIZED actions test passed")
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# L3: _extract_blocked_assessments + _get_http_exception_for_blocked_guardrail
|
||||
# Regression coverage for case 2026-04-10-internal-bedrock-guardrail-streaming-error.
|
||||
@@ -1338,4 +1815,3 @@ def test_get_http_exception_no_blocked_assessments_omits_field():
|
||||
assert isinstance(exc, HTTPException)
|
||||
assert "assessments" not in exc.detail
|
||||
assert exc.detail["guardrailIdentifier"] == "amgllac6xf3r"
|
||||
|
||||
|
||||
Reference in New Issue
Block a user