Chore: Fix bugs in the test suite (#14244)

* Fix: redirect SHARE_LINK_BUNDLE_DIR to the test temp layout instead of the real media directory

* Fix: include f_to in test_filters subTest labels so each of the 8 cases reports distinctly

* Fix: run the post_consume error-log assertion after the raising call and match the actual paperless_mail logger name

* Fix: rename the blank-password workflow test to match its behavior and add a real wrong-password-fails test

* Fix: use the created social account's actual pk and remove an accidental tuple wrapping the mock provider

* Fix: assert against the created documents' actual pks instead of hardcoded 1 and 2

* Fix: assert test_compression actually produces a valid LZMA-compressed zip

* Fix: clear os.environ when patching PAPERLESS_ADMIN_* vars so a host-set value can't leak into the no-user test

* Fix: restore MIDDLEWARE, AUTHENTICATION_BACKENDS and REST_FRAMEWORK auth classes after each remote-user settings test instead of leaking the mutation into later tests

* Fix: use a guaranteed-nonexistent temp path instead of hardcoded /tmp/foo/bar in test_export_target_not_exists

src/documents/tests/test_api_bulk_download.py

@@ -166,7 +166,15 @@ class TestBulkDownload(DirectoriesMixin, SampleDirMixin, APITestCase):
             ),
             content_type="application/json",
         )
-        response.close()
+
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertEqual(response["Content-Type"], "application/zip")
+
+        with zipfile.ZipFile(io.BytesIO(read_streaming_response(response))) as zipf:
+            self.assertEqual(zipf.infolist()[0].compress_type, zipfile.ZIP_LZMA)
+
+            with self.doc2.source_file as f:
+                self.assertEqual(f.read(), zipf.read("2021-01-01 document A.pdf"))
 
     @override_settings(FILENAME_FORMAT="{correspondent}/{title}")
     def test_formatted_download_originals(self) -> None: