Reading file contents in Cypress - Cheat Sheet & Quick Revision

Recall & Review

beginner

What Cypress command is used to read the contents of a file?

The cy.readFile() command is used to read the contents of a file in Cypress.

beginner

How do you assert that a file contains specific text using Cypress?

Use cy.readFile('path/to/file').should('contain', 'expected text') to check if the file contains the expected text.

beginner

What file path should you use in cy.readFile() to read a file inside the cypress/fixtures folder?

You can use a relative path like cypress/fixtures/filename.txt or just filename.txt if the default folder is set.

intermediate

Can cy.readFile() read JSON files and automatically parse them?

Yes, if you read a JSON file with cy.readFile('file.json'), Cypress automatically parses it into a JavaScript object.

intermediate

What happens if cy.readFile() tries to read a file that does not exist?

The test will fail with an error indicating the file was not found. You should ensure the file path is correct before reading.

Which Cypress command reads the contents of a file?

A cy.getFile()

B cy.readFile()

C cy.loadFile()

D cy.openFile()

cy.readFile() is the correct command to read file contents in Cypress.

How do you check if a file contains the text 'Hello World' in Cypress?

A cy.readFile('file.txt').should('contain', 'Hello World')

B cy.readFile('file.txt').should('have.text', 'Hello World')

C cy.get('file.txt').should('contain', 'Hello World')

D cy.read('file.txt').should('contain', 'Hello World')

Use cy.readFile() with should('contain', ...) to assert file content.

If you read a JSON file with cy.readFile(), what type of data do you get?

A A JavaScript object parsed from JSON

B A string with JSON text

C An array of bytes

D A file stream

Cypress automatically parses JSON files into JavaScript objects.

Where should test files be placed to be read easily with relative paths in Cypress?

A cypress/plugins

B cypress/support

C cypress/integration

D cypress/fixtures

The cypress/fixtures folder is the default location for test data files.

What happens if cy.readFile() tries to read a missing file?

A It returns an empty string

B It creates a new empty file

C It throws an error and fails the test

D It skips the test silently

Reading a non-existent file causes the test to fail with an error.

Explain how to read a text file and verify it contains a specific phrase using Cypress.

Think about reading the file first, then checking its content.

Describe what happens when you read a JSON file with cy.readFile() in Cypress.

Consider how JSON data is handled differently than plain text.