All Lessons / Pro lessons / Matching "{"free_eq"=>""}"

How to use Test Stubs with Minitest

#325 · Dec 30, 2019 Pro

Test stubs are very handy when you want to mock out the response to a method call. This allows your tests to be more reliable and skip long running or unnecessary method calls.

Refactoring Rubocop GitHub Action

#323 · Dec 16, 2019 Pro

Today we're refactoring Andrew Mason's GitHub Action that runs Rubocop against your repository. We'll pull out some concepts, remove conditionals, and use several other techniques to clean up the code.

Testing Rails ActionCable with Devise

#322 · Dec 09, 2019 Pro

Testing ActionCable authentication with Devise is pretty easy, especially when we build our own helpers to stub out Warden

How to test ActionMailer in Rails

#321 · Dec 02, 2019 Pro

Rails provides several really useful test helpers for ActionMailer so we can quickly iterate on our design, test that our code queues up the right emails, and make sure our emails contain the right content.

Testing External APIs with VCR

#318 · Oct 29, 2019 Pro

Testing integrations with external APIs in your Rails app can be hard. You don't know what requests are being made (or even the responses), so how can you properly mock them out? VCR to the rescue.

Testing API Integrations with WebMock

#317 · Oct 23, 2019 Pro

How to write Controller & Integration Tests in Rails

#314 · Oct 02, 2019 Pro

Learn how to write integration tests in Rails to test controllers and actions

How to use Fixtures to create sample test data

#312 · Sep 18, 2019 Pro

You can use Fixtures in Rails to create sample database records for your tests to run against. They're easy to setup and extremely quick.

Test Driven Development Basics

#311 · Sep 10, 2019 Pro

Test Driven Development, or TDD, is a pretty simple process that allows you to write your code in conjunction with tests to ensure a high level of confidence and code coverage.

Handle Race Conditions with Pessimistic Locking

#308 · Aug 22, 2019 Pro

Race conditions can cause problems with data integrity. We can prevent these issues with Pessimistic Locking in ActiveRecord which uses database row-level locking.