fix(BA-6003): address CI failures post-main-rebase

* Sort imports in tests/unit/common/configs/{test_meta,test_generator,test_inspector}.py
  (ruff I001).
* Expand the catch tuple in tests/unit/common/test_typed_validators.py
  to also accept BackendAISchemaValidationFailed alongside ValidationError
  and TypeError — HostPortPair now inherits BackendAISchema so
  model_validate raises the wrapped exception.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jopemachine

backend.ai-openid-plugin

@@ -0,0 +1 @@
+Subproject commit 025e0849b2fd87f5344ce6f403f0223500c9bab7

scripts/show_validation_log_format.py

@@ -0,0 +1,105 @@
+"""Simulate the validation-error log path without hitting the server.
+
+Goal: show what an operator would see in mgr logs when
+``BackendAISchema.model_validate`` fails and the result propagates
+through ``convert_validation_error`` -> exception middleware.
+
+Run::
+
+    PY=dist/export/python/virtualenvs/python-default/3.13.7/bin/python
+    PYTHONPATH=src $PY scripts/show_validation_log_format.py
+"""
+
+from __future__ import annotations
+
+import logging
+
+from ai.backend.common.api_handlers import convert_validation_error
+from ai.backend.common.exception import (
+    BackendAIError,
+    BackendAISchemaValidationFailed,
+    InvalidAPIParameters,
+)
+from ai.backend.common.types import BackendAISchema
+
+logging.basicConfig(
+    level=logging.WARNING,
+    format="%(asctime)s %(levelname)s %(name)s [%(process)d] %(message)s",
+)
+log = logging.getLogger("ai.backend.manager.api.rest.middleware.exception")
+
+
+class Address(BackendAISchema):
+    city: str
+    zipcode: int
+
+
+class User(BackendAISchema):
+    name: str
+    age: int
+    address: Address
+
+
+@convert_validation_error
+def parse_body(model: type[BackendAISchema], body: dict) -> BackendAISchema:
+    """Stand-in for ``BodyParam.from_body`` — same decorator wrapping."""
+    return model.model_validate(body)
+
+
+def middleware_log(ex: BackendAIError, *, method: str, endpoint: str) -> None:
+    """Same call shape the real exception middleware uses."""
+    log.warning(
+        "client error raised inside handlers: (%s %s): %s",
+        method,
+        endpoint,
+        repr(ex),
+    )
+
+
+def banner(title: str) -> None:
+    print()
+    print("=" * 78)
+    print(title)
+    print("=" * 78)
+
+
+# === Scenario 1: schema with multiple nested missing fields ===============
+banner("[1] body={} for User → caught by BackendAISchema.model_validate")
+try:
+    User.model_validate({})
+except BackendAISchemaValidationFailed as e:
+    print('e!!', e)
+
+
+# === Scenario 2: same body going through convert_validation_error =========
+banner("[2] body={} for User → caught by BodyParam (convert_validation_error)")
+try:
+    parse_body(User, {})
+except InvalidAPIParameters as e:
+    print(f"-- type: {type(e).__name__}  (← wrapped, not BackendAISchemaValidationFailed)")
+    print(f"-- status_code: {e.status_code}")
+    print(f"-- error_type: {e.error_type}")
+    print(f"-- error_title: {e.error_title}")
+    print(f"-- extra_msg (str):\n{e.extra_msg}")
+    print(f"-- extra_data: {e.extra_data!r}")
+    print()
+    print("-- middleware log line would be:")
+    middleware_log(e, method="POST", endpoint="/v2/users")
+
+
+# === Scenario 3: partial body with nested + sibling errors ================
+banner("[3] body with mixed errors going through convert_validation_error")
+bad_body = {
+    "name": "alice",
+    "age": "not-an-int",
+    "address": {"city": "Seoul"},
+}
+try:
+    parse_body(User, bad_body)
+except InvalidAPIParameters as e:
+    print(f"-- type: {type(e).__name__}")
+    print(f"-- extra_msg (str):\n{e.extra_msg}")
+    print(f"-- extra_data: {e.extra_data!r}")
+    print()
+    print("-- middleware log line would be:")
+    middleware_log(e, method="POST", endpoint="/v2/users")

tests/unit/common/configs/test_generator.py

@@ -6,8 +6,6 @@
 import pytest
 from pydantic import Field
 
-from ai.backend.common.types import BackendAISchema
-
 from ai.backend.common.configs.generator import (
     BinarySizeFormatter,
     CompositeFormatter,
@@ -29,6 +27,7 @@
     ConfigEnvironment,
     ConfigExample,
 )
+from ai.backend.common.types import BackendAISchema
 
 
 class TestFieldVisibility:

tests/unit/common/configs/test_inspector.py

@@ -5,8 +5,6 @@
 import pytest
 from pydantic import Field
 
-from ai.backend.common.types import BackendAISchema
-
 from ai.backend.common.configs.inspector import (
     ConfigInspector,
     FieldDocumentation,
@@ -19,6 +17,7 @@
     ConfigEnvironment,
     ConfigExample,
 )
+from ai.backend.common.types import BackendAISchema
 
 
 class TestFieldTypeInfo:

tests/unit/common/configs/test_meta.py

@@ -5,8 +5,6 @@
 import pytest
 from pydantic import Field
 
-from ai.backend.common.types import BackendAISchema
-
 from ai.backend.common.meta import (
     BackendAIAPIMeta,
     BackendAIConfigMeta,
@@ -18,6 +16,7 @@
     get_field_meta,
     get_field_type,
 )
+from ai.backend.common.types import BackendAISchema
 
 
 class TestConfigExample:

tests/unit/common/test_typed_validators.py

@@ -64,5 +64,5 @@ def test_hostport_pair_valid(
     ],
 )
 def test_hostport_pair_invalid(input: str | list[str] | dict[str, str] | int) -> None:
-    with pytest.raises((ValidationError, TypeError)):
+    with pytest.raises((BackendAISchemaValidationFailed, ValidationError, TypeError)):
         HostPortPair.model_validate(input)