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5:33
How to use Dependency Injection in Ruby
#326 ·

Dependency Injection is a common technique for making your code more flexible and testable by removing strict dependencies upon other classes, modules, and other types of dependencies in your code
11 0
4:50
Fixing Brittle Tests: Avoid Hardcoded Values
#324 ·

Test suites often become brittle over time where small changes end up breaking various tests. One way to avoid that is by avoiding using hardcoded values in your test suite.
3 0
8:35
Testing Times & Dates with Rails
#320 ·

Rails provides several helper methods for testing times and dates in your applications. You can now freeze time and time travel like in the movies!
7 1
7:31
How to Test Background Jobs with Active Job
#319 ·

Learn how to test Active Job in your Ruby on Rails application
8 1
14:18
GitHub Actions with Ruby on Rails: Setting up Continuous Integration
#316 ·

Learn how to set up GitHub Actions to run Continuous Integration (CI) with Ruby on Rails
22 10
13:20
How to write System Tests in Rails
#315 ·

System tests allow you to use a browser for testing your Rails app including Javascript
17 15
9:40
How to use Devise Test Helpers
#313 ·

Adding Devise test helpers allows you to quickly login a user for testing controllers in Rails
15 4
9:44
How to Test Validations in Rails
#310 ·

Learn how to write tests for validations on ActiveRecord objects in Ruby on Rails
29 2
14:25
How to use Multiple Databases in Rails 6.0
#309 ·

With Rails 6.0, you can now define multiple primary and replica databases, define separate migrations for each primary database, and configure each model to read and write from different databases.
14 1
8:19
Ruby's Array() and Array.wrap
#305 ·

Learn how to remove conditionals and make your code simpler and more reliable using Ruby and ActiveSupport's Array wrap methods
24 1
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