javascript - modify fixture data in cypress and intercept it - Stack Overflow

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let say I have this setting.json

{ data: { isDark: false } } 

and I intercept it like so

cy.intercept("api/setting", {
    fixture: `setting.json`,
 })

it worked.

But there's no way I want to create one file for one new property in the setting.json or when isDark is true. So how can I change the property values of the setting.json in my test?

I tried

cy.intercept("api/setting", (req) => {
 const settingFixture = await cy.fixture('setting.json')

 req.continue((res) => {
  res.send(settingFixture.map((object)=>({...object, isDark: true}))
 })

 cy.visit('some where')
})

but it doesn't work.

let say I have this setting.json

{ data: { isDark: false } } 

and I intercept it like so

cy.intercept("api/setting", {
    fixture: `setting.json`,
 })

it worked.

But there's no way I want to create one file for one new property in the setting.json or when isDark is true. So how can I change the property values of the setting.json in my test?

I tried

cy.intercept("api/setting", (req) => {
 const settingFixture = await cy.fixture('setting.json')

 req.continue((res) => {
  res.send(settingFixture.map((object)=>({...object, isDark: true}))
 })

 cy.visit('some where')
})

but it doesn't work.

• javascript
• cypress

Share Improve this question Follow asked Jan 6, 2022 at 9:25 Alicia YAlicia Y 38711 gold badge66 silver badges1616 bronze badges 1

• I think part of your answer in this video youtube./watch?v=vlLLi5N4h78, check it out – Evgenii Bazhanov Commented Jan 6, 2022 at 9:50

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1 Answer 1

Sorted by: Reset to default 8

According to Cypress documentation about fixture mand (https://docs.cypress.io/api/mands/fixture#Modifying-fixture-data-before-using-it), I think you can try something like this:

cy.fixture('setting.json').then(settingFixture => {
    
    // Update your JSON object according to your context
    // ...

    // Stub your response with this JSON object updated
    cy.intercept("api/setting", settingFixture)
});


// Navigate to your URL
cy.visit('some where')

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