Uploaded March 2022 | Updated September 2026, 2 weeks ago

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In this video, learn about the DRY (Don’t Repeat Yourself) principle and how it can affect end-to-end tests. After watching this video, you will be able to create reusable helpers for data setup in your own Cypress end-to-end tests.

Chapters
00:00 Intro
00:09 Recap of previous video
00:20 Learning goals for this video
00:31 What is the DRY principle (Don’t Repeat Yourself)
00:46 Problems with updating duplicated code in multiple places
00:58 Using code abstractions to reduce the amount of duplication
01:09 How does code duplication lead to issues in end-to-end tests
01:28 Reminder instructions for running demo app and Cypress test suite
01:40 How to identify the duplicated code in the current Cypress end-to-end tests
01:55 How to create a reusable helper function for end-to-end test setup code
02:09 How to replace duplicated test setup with the reusable helper function
02:17 Save file to verify Cypress end-to-end tests still pass
02:29 Recapping what you learned
02:46 Conclusion and next video teaser

Find out more about Test Double at link.testdouble.com/more-info