Integration tests in Ruby on Rails - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main purpose of integration tests in Rails?

Integration tests check how different parts of your Rails app work together, like controllers, views, and models, to make sure the whole system behaves correctly.

beginner

Which Rails class do you usually inherit from to write integration tests?

You inherit from ActionDispatch::IntegrationTest to write integration tests in Rails.

beginner

How do integration tests differ from unit tests in Rails?

Unit tests check small parts like a single model or method, while integration tests check how multiple parts work together through full user flows.

beginner

What method do you use in integration tests to simulate a user visiting a page?

You use HTTP methods like get, post, patch, and delete to simulate user actions in integration tests.

beginner

Why is it important to use integration tests in a Rails application?

Integration tests help catch bugs that happen when different parts of your app interact, ensuring the app works well from the user's point of view.

Which class do Rails integration tests inherit from?

A ActionDispatch::IntegrationTest

B ActiveRecord::Base

C ActionController::TestCase

D Minitest::Test

Rails integration tests inherit from ActionDispatch::IntegrationTest to test multiple parts working together.

What does an integration test typically simulate?

A CSS styling

B A single method call

C Database schema changes

D A full user interaction flow

Integration tests simulate full user flows to check how parts of the app work together.

Which HTTP method is NOT commonly used in Rails integration tests?

A get

B post

C connect

D put

The 'connect' HTTP method is not commonly used in Rails integration tests.

What is a key benefit of integration tests?

A They test isolated methods only

B They check how components work together

C They replace unit tests

D They test only the database

Integration tests check how different parts of the app work together, which unit tests do not.

Where do you place integration test files in a Rails app?

A test/integration

B config

C app/models

D lib

Integration tests are placed in the test/integration directory in Rails.

Explain how integration tests help improve a Rails application.

Think about how users interact with the app and how integration tests check those flows.

Describe the difference between unit tests and integration tests in Rails.

Consider the scope each test type covers.