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.

rides/migrations/0003_add_company_model.py

@@ -0,0 +1,43 @@
+# Generated by Django 5.2.5 on 2025-08-16 23:12
+
+import django.contrib.postgres.fields
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("rides", "0002_add_business_constraints"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Company',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(default=django.utils.timezone.now)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('name', models.CharField(max_length=255)),
+                ('slug', models.SlugField(max_length=255, unique=True)),
+                ('roles', django.contrib.postgres.fields.ArrayField(
+                    base_field=models.CharField(
+                        choices=[('MANUFACTURER', 'Ride Manufacturer'), ('DESIGNER', 'Ride Designer'), ('OPERATOR', 'Park Operator'), ('PROPERTY_OWNER', 'Property Owner')],
+                        max_length=20
+                    ),
+                    blank=True,
+                    default=list,
+                    size=None
+                )),
+                ('description', models.TextField(blank=True)),
+                ('website', models.URLField(blank=True)),
+                ('founded_date', models.DateField(blank=True, null=True)),
+                ('rides_count', models.IntegerField(default=0)),
+                ('coasters_count', models.IntegerField(default=0)),
+            ],
+            options={
+                'verbose_name_plural': 'Companies',
+                'ordering': ['name'],
+            },
+        ),
+    ]