JSON fixture files in Cypress - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a JSON fixture file in Cypress?

A JSON fixture file is a simple file that stores test data in JSON format. Cypress uses it to load data during tests, making tests cleaner and easier to maintain.

beginner

How do you load a JSON fixture file in a Cypress test?

Use cy.fixture('filename').then((data) => { ... }) to load the JSON data from the fixture file named filename.json.

beginner

Why use JSON fixture files instead of hardcoding test data?

Using JSON fixture files keeps test data separate from test code. This makes tests easier to read, update, and reuse, just like keeping your recipe separate from your cooking steps.

beginner

Where should JSON fixture files be placed in a Cypress project?

They should be placed inside the cypress/fixtures folder. Cypress automatically looks here when you use cy.fixture().

beginner

What is the correct format for a JSON fixture file?

A JSON fixture file must be valid JSON: key-value pairs inside curly braces, with keys and string values in double quotes, and no trailing commas.

Where do you place JSON fixture files in a Cypress project?

A cypress/integration

B cypress/support

C cypress/fixtures

D cypress/plugins

JSON fixture files belong in the cypress/fixtures folder so Cypress can find them with cy.fixture().

How do you access data from a JSON fixture file in a test?

A cy.load('filename')

B cy.fixture('filename').then((data) => { ... })

C cy.readFile('filename.json')

D cy.get('filename')

Use cy.fixture('filename').then(...) to load and use JSON fixture data in Cypress tests.

Why is it better to use JSON fixture files instead of hardcoding data?

A It makes tests slower

B It requires more code

C It hides test data from the tester

D It separates data from test code for easier maintenance

Separating data from test code makes tests easier to read, update, and reuse.

Which of these is a valid JSON fixture file content?

A { "name": "Alice", "age": 30 }

B { name: "Alice", age: 30 }

C { 'name': 'Alice', 'age': 30 }

D { name: 'Alice', age: 30 }

Valid JSON requires double quotes around keys and string values.

What happens if you try to load a fixture file that does not exist?

A Cypress throws an error and fails the test

B Cypress silently ignores it

C Cypress creates an empty fixture file

D Cypress retries loading automatically

Cypress throws an error if the fixture file is missing, causing the test to fail.

Explain how to use JSON fixture files in Cypress tests.

Think about where the file goes and how to load it in your test.

Describe the benefits of using JSON fixture files for test data.

Consider how separating data helps in real life, like keeping ingredients separate from cooking steps.