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.

parks/api/urls.py

@@ -0,0 +1,61 @@
+"""
+URL configuration for Parks API following Django styleguide patterns.
+"""
+
+from django.urls import path, include
+from rest_framework.routers import DefaultRouter
+
+from .views import (
+    ParkListApi,
+    ParkDetailApi, 
+    ParkCreateApi,
+    ParkUpdateApi,
+    ParkDeleteApi,
+    ParkApi
+)
+
+app_name = 'parks_api'
+
+# Option 1: Separate ViewSets for each operation (more explicit)
+router_separate = DefaultRouter()
+router_separate.register(r'list', ParkListApi, basename='park-list')
+router_separate.register(r'detail', ParkDetailApi, basename='park-detail')
+router_separate.register(r'create', ParkCreateApi, basename='park-create')
+router_separate.register(r'update', ParkUpdateApi, basename='park-update')
+router_separate.register(r'delete', ParkDeleteApi, basename='park-delete')
+
+# Option 2: Unified ViewSet (more conventional DRF)
+router_unified = DefaultRouter()
+router_unified.register(r'parks', ParkApi, basename='park')
+
+# Use unified approach for cleaner URLs
+urlpatterns = [
+    path('v1/', include(router_unified.urls)),
+]
+
+# Alternative manual URL patterns for more control
+urlpatterns_manual = [
+    # List and create
+    path('v1/parks/', ParkApi.as_view({
+        'get': 'list',
+        'post': 'create'
+    }), name='park-list'),
+    
+    # Stats endpoint
+    path('v1/parks/stats/', ParkApi.as_view({
+        'get': 'stats'
+    }), name='park-stats'),
+    
+    # Detail operations
+    path('v1/parks/<slug:slug>/', ParkApi.as_view({
+        'get': 'retrieve',
+        'put': 'update',
+        'patch': 'partial_update',
+        'delete': 'destroy'
+    }), name='park-detail'),
+    
+    # Park reviews
+    path('v1/parks/<slug:slug>/reviews/', ParkApi.as_view({
+        'get': 'reviews'
+    }), name='park-reviews'),
+]