refactor: modify data setup and test mei files setting

Moves the TEST_MEI_FILES_PATH setting to settings.py rather than
setting it separately for each test.

Makes some changes to test set-up and break-down to remove the need to index
MEI before each test.

app/public/cantusdata/settings.py

@@ -175,3 +175,5 @@
 CELERY_RESULT_EXTENDED = True
 CELERY_APP = "cantusdata"
 CELERY_TASK_TRACK_STARTED = True
+
+TEST_MEI_FILES_PATH = "cantusdata/test/core/helpers/mei_processing/test_mei_files"

app/public/cantusdata/test/core/helpers/mei_processing/test_mei_tokenizer.py

@@ -2,19 +2,13 @@
 from os import path
 import json
 from typing import List, cast
-from cantusdata.settings import BASE_DIR
+from django.conf import settings
 from cantusdata.helpers.mei_processing.mei_tokenizer import MEITokenizer
 from cantusdata.helpers.mei_processing.mei_parsing_types import NgramDocument
 from cantusdata.helpers.neume_helpers import NEUME_GROUPS, NeumeName
 
 TEST_MEI_FILE = path.join(
-    BASE_DIR,
-    "cantusdata",
-    "test",
-    "core",
-    "helpers",
-    "mei_processing",
-    "test_mei_files",
+    settings["TEST_MEI_FILES_PATH"],
     "123723",
     "cdn-hsmu-m2149l4_001r.mei",
 )

app/public/cantusdata/test/core/management/commands/test_index_manuscript_mei.py

@@ -12,7 +12,7 @@
 from solr.core import SolrConnection  # type: ignore
 
 
-TEST_MEI_FILES_PATH = "cantusdata/test/core/helpers/mei_processing/test_mei_files"
+TEST_MEI_FILES_PATH = settings["TEST_MEI_FILES_PATH"]
 
 
 class IndexManuscriptMeiTestCase(TestCase):
@@ -26,6 +26,11 @@ def setUpTestData(cls) -> None:
         Folio.objects.create(number="001r", manuscript=manuscript)
         Folio.objects.create(number="001v", manuscript=manuscript)
 
+    @classmethod
+    def tearDownClass(cls) -> None:
+        call_command("index_manuscript_mei", "123723", "--flush-index")
+        super().tearDownClass()
+
     def test_index_manuscript_mei(self) -> None:
         # Assert that prior to the command run, the folio "999r" does not
         # exist in the database
@@ -123,3 +128,8 @@ def tearDown(self) -> None:
         os.rmdir("/test-mei-dir/123723")
         os.rmdir("/test-mei-dir")
         os.rmdir("/empty-mei-dir")
+
+    @classmethod
+    def tearDownClass(cls) -> None:
+        call_command("index_manuscript_mei", "123723", "--flush-index")
+        super().tearDownClass()

app/public/cantusdata/test/core/views/test_search_notation_view.py

@@ -1,12 +1,11 @@
 from rest_framework.test import APITestCase
 from django.core.management import call_command
 from django.urls import reverse
+from django.conf import settings
 
 from cantusdata.views.search_notation import SearchNotationView, NotationSearchException
 from cantusdata.models import Manuscript, Folio
 
-TEST_MEI_FILES_PATH = "cantusdata/test/core/helpers/mei_processing/test_mei_files"
-
 
 class TestSearchNotationView(APITestCase):
     search_notation_view = SearchNotationView()
@@ -33,7 +32,8 @@ def setUpTestData(cls) -> None:
             image_uri="test_001r.jpg",
         )
 
-    def setUp(self) -> None:
+    @classmethod
+    def setUpClass(cls) -> None:
         call_command(
             "index_manuscript_mei",
             "123723",
@@ -42,8 +42,9 @@ def setUp(self) -> None:
             "--max-ngram",
             "5",
             "--mei-dir",
-            TEST_MEI_FILES_PATH,
+            settings.TEST_MEI_FILES_PATH,
         )
+        super().setUpClass()
 
     def test_create_query_string(self) -> None:
         with self.subTest("Test invalid query"):
@@ -163,5 +164,7 @@ def test_get(self) -> None:
             self.assertIn("results", response_data)
             self.assertIn("numFound", response_data)
 
-    def tearDown(self) -> None:
+    @classmethod
+    def tearDownClass(cls) -> None:
         call_command("index_manuscript_mei", "123723", "--flush-index")
+        super().tearDownClass()