Run tests against read-only 'dashboard' connection, refs #18

conftest.py

@@ -0,0 +1,10 @@
+import pytest
+
+
+@pytest.fixture(scope="session")
+def django_db_modify_db_settings():
+    from django.conf import settings
+
+    settings.DATABASES["dashboard"]["OPTIONS"] = {
+        "options": "-c default_transaction_read_only=on -c statement_timeout=100"
+    }

django_sql_dashboard/views.py

@@ -2,8 +2,9 @@
 import time
 
 from django.contrib.auth.decorators import permission_required
-from django.db import connection, transaction
+from django.db import connections, transaction
 from django.shortcuts import get_object_or_404, render
+from django.conf import settings
 
 from .models import Dashboard
 
@@ -18,6 +19,8 @@ def _dashboard_index(
     request, sql_queries, title=None, description=None, saved_dashboard=False
 ):
     query_results = []
+    alias = getattr(settings, "DASHBOARD_DB_ALIAS", "dashboard")
+    connection = connections[alias]
     with connection.cursor() as tables_cursor:
         tables_cursor.execute(
             """

pytest_use_postgresql.py

@@ -12,6 +12,7 @@
 def pytest_load_initial_conftests(early_config, parser, args):
     os.environ["DJANGO_SETTINGS_MODULE"] = early_config.getini("DJANGO_SETTINGS_MODULE")
     settings.DATABASES["default"] = parse(_POSTGRESQL.url())
+    settings.DATABASES["dashboard"] = parse(_POSTGRESQL.url())
 
 
 def pytest_unconfigure(config):

test_project/config/settings.py

@@ -55,7 +55,9 @@
 WSGI_APPLICATION = "config.wsgi.application"
 
 
-DATABASES = {"default": dj_database_url.config()}
+DATABASES = {
+    "default": dj_database_url.config(),
+}
 
 # Password validation
 # https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators