Update all tests to use setting value overriding.

mayan/apps/document_indexing/tests/test_models.py

@@ -1,7 +1,7 @@
 from __future__ import unicode_literals
 
 from django.core.files.base import File
-from django.test import TestCase
+from django.test import TestCase, override_settings
 
 from documents.models import DocumentType
 from documents.tests import TEST_SMALL_DOCUMENT_PATH, TEST_DOCUMENT_TYPE
@@ -10,16 +10,13 @@ from metadata.models import MetadataType, DocumentTypeMetadataType
 from ..models import Index, IndexInstanceNode, IndexTemplateNode
 
 
+@override_settings(OCR_AUTO_OCR=False)
 class IndexTestCase(TestCase):
     def setUp(self):
         self.document_type = DocumentType.objects.create(
             label=TEST_DOCUMENT_TYPE
         )
 
-        ocr_settings = self.document_type.ocr_settings
-        ocr_settings.auto_ocr = False
-        ocr_settings.save()
-
         with open(TEST_SMALL_DOCUMENT_PATH) as file_object:
             self.document = self.document_type.new_document(
                 file_object=File(file_object)