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Read and Write Files in Cypress

To read and write files in cypress use the following commands,



cy.writeFile('FileName.ext','text')
cy.readFile('Filename.ext').then(function(value){
    cy.log(value)
})

Write Command:


Once write command is executed, you can see the file has been created in specified path with the text.



cy.writeFile('sample.txt','Thank you!',{flag:'a+'})


If you are trying to add text to the same file, it will create a file with only the text in second command. In order to append your new text with existing text, you need to pass the flag with 'a+'. That helps us to append the text in existing file.


Read Command:

Read command will help us to read the data from text or json file. Yo can use then function to manipulate the data you read from the file.


To use json file data, you can be more specific with the values.


data in sample.json:


You can access this data by,


cy.readFile('samplej.json').then(function(temp){
     cy.log(temp.name)
     cy.log(temp.email)
 })


Code:

describe('testingreadAndWrite',()=>{
 it('testing write',()=>{
 cy.writeFile('sample.txt','Hello world!\n')
 cy.writeFile('sample.txt','Thank you!',{flag:'a+'})
 cy.writeFile('samplej.json',{name:'coderscamp',email:'coderscampindia@gmail.com'})
    })

 it('read testing',()=>{
 cy.readFile('sample.txt').then(function(value){
 cy.log(value)
        })
 cy.readFile('samplej.json').then(function(temp){
 cy.log(temp.name)
 cy.log(temp.email)
        })

    })
})

In this article you have learnt how to read and write files in cypress. Stay connected! Happy Testing!!

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