You want to create a custom plugin that reads a JSON file from disk and returns its content to your test. Which approach correctly implements this plugin task?

hard📝 Application Q15 of 15

Cypress - Plugins and Ecosystem

AUse <code>console.log</code> to print file content and return undefined

BUse <code>cy.readFile</code> inside the plugin task to read the file asynchronously

CUse browser <code>fetch</code> API inside the plugin task to get the file content

DUse Node.js <code>fs.readFileSync</code> inside the plugin task and return parsed JSON

Step-by-Step Solution

Solution:

Step 1: Understand plugin environment
Plugins run in Node.js, so Node.js modules like fs can be used to read files synchronously or asynchronously.
Step 2: Choose correct method to read file
cy.readFile is a test command, not available in plugins. Browser fetch is not available in Node.js plugin context. Using fs.readFileSync and returning parsed JSON is correct.
Final Answer:
Use Node.js fs.readFileSync inside the plugin task and return parsed JSON -> Option D
Quick Check:
Plugins use Node.js fs to read files = A [OK]

Quick Trick: Use Node.js fs module in plugins, not cy commands [OK]

Common Mistakes:

Trying to use cy commands inside plugins
Using browser APIs in Node.js plugin code
Returning undefined instead of file content

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You want to create a custom plugin that reads a JSON file from disk and returns its content to your test. Which approach correctly implements this plugin task?

Step 1: Understand plugin environment

Step 2: Choose correct method to read file

Final Answer:

Quick Check:

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