series of tests added with built-in django test support

tests/README.md

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+# ThrillWiki Test Suite
+
+This directory contains the comprehensive test suite for ThrillWiki, including unit tests and integration tests for all major components of the system.
+
+## Running Tests
+
+To run the complete test suite with coverage reporting:
+
+```bash
+python tests/test_runner.py
+```
+
+This will:
+1. Run all tests across all apps
+2. Generate a coverage report in the terminal
+3. Create a detailed HTML coverage report in `tests/coverage_html/`
+
+## Viewing Coverage Reports
+
+There are two ways to view the coverage reports:
+
+1. Terminal Report: Shows a quick overview of test coverage directly in your terminal after running the tests.
+
+2. HTML Report: A detailed, interactive report showing line-by-line coverage that can be accessed in two ways:
+   - Directly open `tests/coverage_html/index.html` in your browser
+   - Visit `http://localhost:8000/coverage/` when running the development server (only available in DEBUG mode)
+
+The HTML report provides:
+- Line-by-line coverage analysis
+- Branch coverage information
+- Missing lines highlighting
+- Interactive file browser
+- Detailed statistics per module
+
+## Test Structure
+
+The test suite is organized by app, with each app having its own test file:
+
+- `parks/tests.py`: Tests for park-related functionality
+- `companies/tests.py`: Tests for company and manufacturer models
+- `location/tests.py`: Tests for location functionality and GeoDjango features
+- Additional test files in other app directories
+
+## Writing New Tests
+
+When adding new features or modifying existing ones, please ensure:
+
+1. All new code is covered by tests
+2. Tests follow the existing pattern in related test files
+3. Both positive and negative test cases are included
+4. Edge cases are considered and tested
+
+## Test Categories
+
+The test suite includes:
+
+- Model Tests: Verify model creation, validation, and methods
+- View Tests: Test view responses and template rendering
+- Form Tests: Validate form processing and validation
+- Integration Tests: Test interactions between components
+
+## Continuous Integration
+
+These tests are run automatically on:
+- Pull request creation
+- Merges to main branch
+- Release tagging
+
+## Troubleshooting
+
+If tests fail:
+1. Check the error message and stack trace
+2. Verify test database settings
+3. Ensure all required dependencies are installed
+4. Check for any pending migrations
+
+For any issues, please create a ticket in the issue tracker.
+
+## Development Tips
+
+- Run the development server with `python manage.py runserver` to access the coverage reports at `http://localhost:8000/coverage/`
+- Coverage reports are only served in development mode (when DEBUG=True)
+- The coverage directory is automatically created when running tests
+- Reports are updated each time you run the test suite