Basic outline to act as guide while writing test for model and forms, to be updated with views as well.

testing-outline.md

Form Tests:

1. Empty Form:

   • Test an empty form to ensure it is invalid.
   • Verify that the form errors match the expected errors for required fields.

2. Form with Invalid Data:

   • Test the form with intentionally invalid data.
   • Check that the form is marked as invalid and contains appropriate error messages.

3. Form with Valid Data:

   • Test the form with valid data.
   • Ensure that the form is marked as valid.

4. Form with Instance:

   • Test a form populated with an instance's data.
   • Verify that the form is initialized correctly with the instance data.

5. Saving Form to Create Instance:

   • Test saving the form to create a new instance.
   • Confirm that the instance is created with the expected data.

6. Form Widget Customization:

   • Test that widget attributes (e.g., CSS classes, placeholders) are applied correctly.
   • Check that widget customization does not interfere with form functionality.

7. Form Widget Rendering:

   • Test that widgets are rendered as expected in the HTML form.
   • Verify that widget rendering aligns with your design expectations.

8. Form Model Relationship:

   • If the form has a model relationship, test that it is correctly associated.
   • Check that the form works well with related models.

9. Form Clean Method:

   • Test the clean method for the form.
   • Verify that custom validation in the clean method behaves as expected.

10. Custom Field Testing:

    • If your form has custom fields, ensure they are validated correctly.
    • Test the behavior of custom widget attributes if applicable.

Model Tests:

1. Instance Getting Created:

   • Test the creation of model instances.
   • Verify that instances are saved to the database as expected.

2. Test __str__ Method:

   • Check that the __str__ method returns a meaningful string representation.
   • Test that the string representation is as expected.

3. Test Automatic Fields (e.g., Created):

   • Verify that automatic fields (e.g., created_at, modified_at) are populated correctly.
   • Check that the automatic fields are updated appropriately during modifications.

4. Test Unique Constraints:

   • Test the enforcement of unique constraints on fields.
   • Verify that trying to create instances with duplicate unique fields results in the expected behavior.

5. Custom Fields Testing:

   • If your model has custom fields, ensure they are validated correctly.
   • Test any custom methods defined on the model.

6. Testing Model Methods:

   • If you have custom methods in your model, test them for correctness.
   • Ensure that methods involving calculations or data processing behave as expected.

7. Testing Model Manager:

   • Test the default manager's behavior.
   • If you have custom managers, ensure they work as intended.

8. Database Integrity:

   • Ensure that the model enforces data integrity rules.
   • Test the behavior of constraints like unique, null, and default.

9. Testing Signals (if applicable):

   • If you have signals connected to your model, test their behavior.
   • Verify that signals respond correctly to various model events.

10. Data Migration Testing:

    • If you use Django migrations, test the migration process.
    • Ensure that existing data is migrated correctly when you make changes to your models.

View Tests:

1. HTTP Status Codes:

   • Test that the view returns the correct HTTP status codes for different scenarios (e.g., 200 OK, 302 Redirect, 404 Not Found).
   • Check the status code when handling form submissions with invalid data.

2. Template Rendering:

   • Test that the correct templates are being rendered.
   • Verify that the template includes the expected content.
   • Check the rendering of dynamic data within the templates.

3. Context Data:

   • Ensure that the view passes the required data to the template context.
   • Test context data for different scenarios (e.g., authenticated user, user without permissions).

4. URL Routing:

   • Verify that the URLs are correctly mapped to the respective views.
   • Test the behavior of URL parameters if applicable.
   • Check for proper handling of optional and required URL parameters.

5. Authentication and Authorization:

   • Test views requiring authentication for proper redirection or login page display.
   • Check access control for views requiring specific permissions.
   • Test views with both authenticated and unauthenticated users.

6. Form Handling:

   • Test the submission of forms associated with the view.
   • Check how the view handles invalid form submissions.
   • Test views with multiple forms if applicable.

7. AJAX and API Views (if applicable):

   • Test API views for correct handling of requests and responses.
   • Verify proper handling of AJAX requests.
   • Check for the presence of appropriate headers in API responses.

8. Security:

   • Ensure that the view guards against common security vulnerabilities (e.g., CSRF protection).
   • Test views with sensitive data to ensure proper access control.

9. Session and Cookies:

   • Test views that interact with session data.
   • Check for the presence and content of cookies if applicable.

10. Redirects:

    • Test views that perform redirects.
    • Verify that the redirect URL is constructed correctly.

11. Query Parameters:

    • Test views that rely on query parameters.
    • Check how the view handles various combinations of query parameters.

12. Caching:

    • Test views that use caching.
    • Verify that the caching behavior is as expected.

13. Exception Handling:

    • Test views for proper exception handling.
    • Check how the view responds to different types of exceptions.

14. Pagination (if applicable):

    • Test views that implement pagination.
    • Verify that the correct subset of data is displayed.

15. Internationalization and Localization:

    • Test views with different languages and locales.
    • Ensure that translations are applied correctly.

16. Third-Party Integrations (if applicable):

    • Test views that interact with third-party APIs or libraries.
    • Verify that error handling is robust for external dependencies.

17. Performance:

    • Conduct performance testing on critical views.
    • Identify and optimize any performance bottlenecks.

18. User Experience:

    • Check the user experience during different interactions with the view.
    • Verify that error messages provide meaningful feedback.

19. Edge Cases:

    • Test views with edge cases and boundary conditions.
    • Verify that the view behaves correctly in exceptional scenarios.

20. Testing URLs with Custom Query Parameters:

    • Test views that accept custom query parameters in the URL.
    • Verify that the view processes and responds to custom query parameters appropriately.