Concept Application: Assert Difference Deep Dive

April 25, 2022

rails
Ruby
Testing
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Your Teacher

Collin Jilbert

Ruby on Rails Developer | Lover of Music | Skateboarder | Proud Papa | Co-editor @therubyradar | Launched @fleur_de_ruby

About This Episode

In this video, we will explore how the concepts we looked at in "Flattening Scopes in Ruby" are used in Rails by taking a look at the assert_difference method. We will walk through how the method works while taking note of where the concepts are applied.

Notes

Rails - ActiveSupport::Testing::Assertions assert_difference method
Hash "[]" method
Enumerable#zip method

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