I am coding cypress tests. I use cypress v10.3.0.

I am getting a wrong date when I use dayjs function for the second time.

var dayjs = require('dayjs')
cy.log(dayjs(new Date()).format('DD/MM/YYYY HH:mm:ss'))
cy.wait(5000)
cy.log(dayjs(new Date()).format('DD/MM/YYYY HH:mm:ss'))

Output picture:

output picture

output text (same text as in the picture):

1. log 13/07/2022 10:20:24
2. wait 5000
3. log 13/07/2022 10:20:24

First log is ok, but second log should be: 13/07/2022 10:25:24

Why is the first and second log the same? Thank you for your help

CodePudding user response：

That is the expected output.

Reason is, cy.log() (both lines) takes it's value before the commands run, before the cy.wait() happens.

You can change it to this

cy.log(dayjs(new Date()).format('DD/MM/YYYY HH:mm:ss'))
cy.wait(5000)
cy.then(() => {
  cy.log(dayjs(new Date()).format('DD/MM/YYYY HH:mm:ss'))  //wait to take value
})

to see 5 seconds (approx) difference.

The cy.then() wrapper delays setting up the log command, and delays evaluating dayjs(new Date()).format('DD/MM/YYYY HH:mm:ss') until after the cy.wait() has run.