diff --git a/api/tests/test_config.py b/api/tests/test_config.py
index 42fadda..e014a37 100644
--- a/api/tests/test_config.py
+++ b/api/tests/test_config.py
@@ -29,10 +29,34 @@ def test_env_test_is_read(clean_env: pytest.MonkeyPatch) -> None:
 
 
 def test_defaults(clean_env: pytest.MonkeyPatch) -> None:
-    """Значения по умолчанию: claim email и параметры outbox."""
-    s = Settings(_env_file=API_DIR / ".env.test")  # type: ignore[call-arg]
+    """Значения по умолчанию классов настроек: env-файла нет, заданы только обязательные OPENBAO__*."""
+    required = {
+        "OPENBAO__DATABASE__DATABASE_URL": "postgresql+asyncpg://u:p@localhost:5432/d",
+        "OPENBAO__MINIO__MINIO_URL": "localhost:9000",
+        "OPENBAO__MINIO__MINIO_ADMIN_LOGIN": "login",
+        "OPENBAO__MINIO__MINIO_ADMIN_PASSWORD": "password",
+        "OPENBAO__MINIO__MINIO_BUCKET": "bucket",
+        "OPENBAO__NATS__NATS_URL": "nats://localhost:4222",
+        "OPENBAO__SMB__SMB_HOST": "host",
+        "OPENBAO__SMB__SMB_PATH": "path",
+        "OPENBAO__SMB__SMB_LOGIN": "login",
+        "OPENBAO__SMB__SMB_PASSWORD": "password",
+    }
+    for key, value in required.items():
+        clean_env.setenv(key, value)
+    s = Settings(_env_file=None)  # type: ignore[call-arg]
+    assert s.DEBUG is False
+    assert s.AUTH_DEV_ISSUER is False
+    assert s.AUTH_DEV_SECRET == ""
+    assert s.AUTH_JWKS_URL == ""
+    assert s.AUTH_PUBLIC_KEY == ""
+    assert s.AUTH_ISSUER == ""
+    assert s.AUTH_AUDIENCE == ""
     assert s.AUTH_EMAIL_CLAIM == "email"
+    assert s.NATS_ENABLED is False
     assert (s.OUTBOX_POLL_SECONDS, s.ACK_TIMEOUT_SECONDS, s.OUTBOX_MAX_REPUBLISH) == (5, 30, 3)
+    assert s.OPENBAO.NATS.NATS_SEED == ""
+    assert s.OPENBAO.NATS.NATS_JWT == ""
 
 
 def test_empty_nats_seed_and_jwt_allowed(clean_env: pytest.MonkeyPatch) -> None: