Add comprehensive tests for Parks API and models

- Implemented extensive test cases for the Parks API, covering endpoints for listing, retrieving, creating, updating, and deleting parks.
- Added tests for filtering, searching, and ordering parks in the API.
- Created tests for error handling in the API, including malformed JSON and unsupported methods.
- Developed model tests for Park, ParkArea, Company, and ParkReview models, ensuring validation and constraints are enforced.
- Introduced utility mixins for API and model testing to streamline assertions and enhance test readability.
- Included integration tests to validate complete workflows involving park creation, retrieval, updating, and deletion.

config/django/test_accounts.py

@@ -0,0 +1,46 @@
+"""
+Test Django settings for thrillwiki accounts app.
+"""
+
+from .base import *
+
+# Use in-memory database for tests
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.contrib.gis.db.backends.postgis',
+        'NAME': 'test_db',
+    }
+}
+
+# Use a faster password hasher for tests
+PASSWORD_HASHERS = [
+    'django.contrib.auth.hashers.MD5PasswordHasher',
+]
+
+# Disable whitenoise for tests
+WHITENOISE_AUTOREFRESH = True
+STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
+
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "django.contrib.sites",
+    "allauth",
+    "allauth.account",
+    "allauth.socialaccount",
+    "accounts",
+    "core",
+    "pghistory",
+    "pgtrigger",
+    "email_service",
+    "parks",
+    "rides",
+    "media.apps.MediaConfig",
+]
+
+GDAL_LIBRARY_PATH = '/opt/homebrew/lib/libgdal.dylib'
+GEOS_LIBRARY_PATH = '/opt/homebrew/lib/libgeos_c.dylib'