Why custom commands reduce duplication in Cypress - Quick Recap

Recall & Review

beginner

What is a custom command in Cypress?

A custom command is a reusable function you create to perform common actions in tests, like logging in or filling forms, so you don't repeat the same code.

beginner

How do custom commands help reduce code duplication?

They let you write a piece of code once and use it many times, so you avoid copying and pasting the same steps in multiple tests.

beginner

Give an example of a situation where a custom command is useful.

When you need to log in to your app in many tests, a custom command can handle the login steps so you just call it instead of writing the steps each time.

intermediate

What is one benefit of reducing duplication with custom commands?

Tests become easier to maintain because if the login process changes, you only update the custom command once instead of every test.

beginner

Where do you define custom commands in Cypress?

You define them in the 'cypress/support/commands.js' file so they are available in all your test files.

Why should you use custom commands in Cypress tests?

A To write more code manually

B To make tests run slower

C To confuse other testers

D To avoid repeating the same code in multiple tests

Custom commands help avoid code repetition, making tests cleaner and easier to maintain.

Where do you usually add custom commands in a Cypress project?

A cypress/integration/tests.js

B cypress/support/commands.js

C package.json

D node_modules folder

The 'cypress/support/commands.js' file is the standard place to define custom commands.

What happens if you change a custom command used in many tests?

A Tests will fail immediately

B You must update each test manually

C All tests using it automatically use the updated command

D Nothing changes in the tests

Changing a custom command updates its behavior everywhere it is used, saving time and effort.

Which of these is NOT a benefit of using custom commands?

A Increasing test maintenance effort

B Reducing code duplication

C Improving test readability

D Making tests easier to update

Custom commands reduce maintenance effort, not increase it.

Custom commands in Cypress are best described as:

A Reusable test functions

B Test data files

C Browser plugins

D Test reports

Custom commands are reusable functions that simplify writing tests.

Explain how custom commands help reduce duplication in Cypress tests.

Think about how repeating login steps in many tests can be replaced by one command.

Describe where and why you would define a custom command in a Cypress project.

Consider the file that loads before tests run.