Backend tests

src/documents/tests/test_api_app_config.py

@@ -72,6 +72,9 @@ class TestApiAppConfig(DirectoriesMixin, APITestCase):
                 "barcode_enable_tag": None,
                 "barcode_tag_mapping": None,
                 "barcode_tag_split": None,
+                "remote_ocr_engine": None,
+                "remote_ocr_api_key": None,
+                "remote_ocr_endpoint": None,
                 "ai_enabled": False,
                 "llm_embedding_backend": None,
                 "llm_embedding_model": None,
@@ -870,6 +873,49 @@ class TestApiAppConfig(DirectoriesMixin, APITestCase):
         config.refresh_from_db()
         self.assertEqual(config.llm_api_key, None)
 
+    def test_update_remote_ocr_api_key(self) -> None:
+        """
+        GIVEN:
+            - Existing config with remote_ocr_api_key specified
+        WHEN:
+            - API to update remote_ocr_api_key is called with all *s
+            - API to update remote_ocr_api_key is called with empty string
+        THEN:
+            - remote_ocr_api_key is unchanged
+            - remote_ocr_api_key is set to None
+        """
+        config = ApplicationConfiguration.objects.first()
+        assert config is not None
+        config.remote_ocr_api_key = "1234567890"
+        config.save()
+
+        # Test with all *
+        response = self.client.patch(
+            f"{self.ENDPOINT}1/",
+            json.dumps(
+                {
+                    "remote_ocr_api_key": "*" * 32,
+                },
+            ),
+            content_type="application/json",
+        )
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        config.refresh_from_db()
+        self.assertEqual(config.remote_ocr_api_key, "1234567890")
+        # Test with empty string
+        response = self.client.patch(
+            f"{self.ENDPOINT}1/",
+            json.dumps(
+                {
+                    "remote_ocr_api_key": "",
+                },
+            ),
+            content_type="application/json",
+        )
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        config.refresh_from_db()
+        self.assertEqual(config.remote_ocr_api_key, None)
+
     def test_enable_ai_index_triggers_update(self) -> None:
         """
         GIVEN:

src/paperless/tests/parsers/test_remote_parser.py

@@ -21,6 +21,7 @@ from unittest.mock import Mock
 import pytest
 
 from documents.parsers import ParseError
+from paperless.models import ApplicationConfiguration
 from paperless.parsers import ParserContext
 from paperless.parsers import ParserProtocol
 from paperless.parsers.remote import RemoteDocumentParser
@@ -33,6 +34,10 @@ if TYPE_CHECKING:
     from pytest_mock import MockerFixture
 
 
+# Remote ocr config from ApplicationConfiguration needs DB access
+pytestmark = pytest.mark.django_db
+
+
 # ---------------------------------------------------------------------------
 # Module-local fixtures
 # ---------------------------------------------------------------------------
@@ -227,6 +232,18 @@ class TestRemoteParserScore:
         score = RemoteDocumentParser.score("application/pdf", "doc.pdf")
         assert score is not None and score > 10
 
+    @pytest.mark.usefixtures("no_engine_settings")
+    def test_score_uses_app_config_when_env_unset(self) -> None:
+        """The app config alone is enough to activate the parser."""
+        config = ApplicationConfiguration.objects.first()
+        assert config is not None
+        config.remote_ocr_engine = "azureai"
+        config.remote_ocr_api_key = "app-config-key"
+        config.remote_ocr_endpoint = "https://config.cognitiveservices.azure.com"
+        config.save()
+
+        assert RemoteDocumentParser.score("application/pdf", "doc.pdf") == 20
+
 
 # ---------------------------------------------------------------------------
 # Properties

src/paperless/tests/test_remote_ocr_config.py

@@ -0,0 +1,88 @@
+"""Tests for RemoteOCRConfig precedence between app config and Django settings."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+import pytest
+from django.test import override_settings
+
+from paperless.config import RemoteOCRConfig
+
+if TYPE_CHECKING:
+    from unittest.mock import MagicMock
+
+
+@pytest.fixture()
+def null_app_config(mocker) -> MagicMock:
+    """Mock ApplicationConfiguration with all fields None → falls back to Django settings."""
+    return mocker.MagicMock(
+        remote_ocr_engine=None,
+        remote_ocr_api_key=None,
+        remote_ocr_endpoint=None,
+    )
+
+
+@pytest.fixture()
+def make_remote_ocr_config(mocker):
+    def _make(app_config, **django_settings_overrides):
+        mocker.patch(
+            "paperless.config.BaseConfig._get_config_instance",
+            return_value=app_config,
+        )
+        with override_settings(**django_settings_overrides):
+            return RemoteOCRConfig()
+
+    return _make
+
+
+class TestRemoteOCRConfig:
+    def test_falls_back_to_settings(
+        self,
+        make_remote_ocr_config,
+        null_app_config,
+    ) -> None:
+        cfg = make_remote_ocr_config(
+            null_app_config,
+            REMOTE_OCR_ENGINE="azureai",
+            REMOTE_OCR_API_KEY="env-key",
+            REMOTE_OCR_ENDPOINT="https://env.cognitiveservices.azure.com",
+        )
+        assert cfg.remote_ocr_engine == "azureai"
+        assert cfg.remote_ocr_api_key == "env-key"
+        assert cfg.remote_ocr_endpoint == "https://env.cognitiveservices.azure.com"
+
+    def test_app_config_takes_precedence(
+        self,
+        make_remote_ocr_config,
+        mocker,
+    ) -> None:
+        app_config = mocker.MagicMock(
+            remote_ocr_engine="azureai",
+            remote_ocr_api_key="db-key",
+            remote_ocr_endpoint="https://db.cognitiveservices.azure.com",
+        )
+        cfg = make_remote_ocr_config(
+            app_config,
+            REMOTE_OCR_ENGINE=None,
+            REMOTE_OCR_API_KEY="env-key",
+            REMOTE_OCR_ENDPOINT="https://env.cognitiveservices.azure.com",
+        )
+        assert cfg.remote_ocr_engine == "azureai"
+        assert cfg.remote_ocr_api_key == "db-key"
+        assert cfg.remote_ocr_endpoint == "https://db.cognitiveservices.azure.com"
+
+    def test_unset_everywhere(
+        self,
+        make_remote_ocr_config,
+        null_app_config,
+    ) -> None:
+        cfg = make_remote_ocr_config(
+            null_app_config,
+            REMOTE_OCR_ENGINE=None,
+            REMOTE_OCR_API_KEY=None,
+            REMOTE_OCR_ENDPOINT=None,
+        )
+        assert cfg.remote_ocr_engine is None
+        assert cfg.remote_ocr_api_key is None
+        assert cfg.remote_ocr_endpoint is None