In controllers, you typically want to test the following aspects:
Routing: Ensure that the correct routes are defined and that they route to the intended controller actions.
HTTP Responses: Verify that the controller action returns the expected HTTP response (such as success, redirect, or error responses) under various conditions.
Instance Variables: Check that the controller sets instance variables correctly, especially those that are used in the corresponding views.
Session and Cookies: If your controller interacts with session variables or cookies, ensure that these interactions are handled correctly.
Filters: Test that any filters applied to controller actions (such as before, after, or around filters) behave as expected.
Parameters: Ensure that the controller correctly processes parameters received from the request, including handling different parameter types (query parameters, form parameters, etc.).
Model Interactions: If the controller interacts with models (e.g., to retrieve or modify data), test that these interactions are performed correctly and that the controller behaves appropriately based on the model's responses.
Error Handling: Verify that the controller handles errors gracefully and provides appropriate error messages or responses to the user.
Authentication and Authorization: If your application implements authentication and authorization, test that controllers enforce these security measures correctly.
Edge Cases and Error Scenarios: Test how the controller behaves under various edge cases and error scenarios, such as invalid input, database errors, or unexpected behavior.
Response Content: Check that the controller renders the correct view or response content, including templates, partials, and JSON responses.
Performance: While not as common, you may also want to test the performance of controller actions, especially if they involve complex operations or interactions with external services.
By testing these aspects of controllers, you can ensure that they function correctly, handle various scenarios appropriately, and provide a reliable user experience in your application.
In controllers, you typically want to test the following aspects:
Routing: Ensure that the correct routes are defined and that they route to the intended controller actions.
HTTP Responses: Verify that the controller action returns the expected HTTP response (such as success, redirect, or error responses) under various conditions.
Instance Variables: Check that the controller sets instance variables correctly, especially those that are used in the corresponding views.
Session and Cookies: If your controller interacts with session variables or cookies, ensure that these interactions are handled correctly.
Filters: Test that any filters applied to controller actions (such as before, after, or around filters) behave as expected.
Parameters: Ensure that the controller correctly processes parameters received from the request, including handling different parameter types (query parameters, form parameters, etc.).
Model Interactions: If the controller interacts with models (e.g., to retrieve or modify data), test that these interactions are performed correctly and that the controller behaves appropriately based on the model's responses.
Error Handling: Verify that the controller handles errors gracefully and provides appropriate error messages or responses to the user.
Authentication and Authorization: If your application implements authentication and authorization, test that controllers enforce these security measures correctly.
Edge Cases and Error Scenarios: Test how the controller behaves under various edge cases and error scenarios, such as invalid input, database errors, or unexpected behavior.
Response Content: Check that the controller renders the correct view or response content, including templates, partials, and JSON responses.
Performance: While not as common, you may also want to test the performance of controller actions, especially if they involve complex operations or interactions with external services.
By testing these aspects of controllers, you can ensure that they function correctly, handle various scenarios appropriately, and provide a reliable user experience in your application.