cy.wrap() 在 mailosaur 中超时等待 4000 毫秒才能完成

Question

I'm running into a CypressError when calling cy.mailosaurGetMessage: cy.wrap() timed out waiting 4000ms to complete.

Please find the attached image for error.

Please find the code snippet below:`

describe('Password reset', () => {
    const serverId = 'u7ob3rfc1'; 
    const testEmail = 'uma@u7ob3rfc1.mailosaur.net'

    it('Gets a link blocked email', () => {
        console.log("inside")
        cy.mailosaurGetMessage(serverId, {
            sentTo: testEmail,
        }).then(email => {
            receivedAfter: new Date('2020-03-06T00:00:00Z')
            console.log(email.subject)
            expect(email.subject).to.equal('Click Blocked');
        })
    })
})

`

Answer 1

Take a look at the top of the screenshot, there's a timeout: 100010000 - which is really weird for a timeout number

See this bit of code from the mailosaur library, in mailosaurCommands.js

cy.wrap(new Cypress.Promise((resolve, reject) => {
  fn(resolve, reject)();
}), {
  log: false,
  timeout: options.timeout + 10000
});

The timeout the user gives is being increased by 10 seconds, except that for your test setup options.timeout is a string instead of a number giving that super large and weird timeout in the screen shot above.

So somewhere you have used

timeout: '1000' 

but instead you should use

timeout: 1000

Why is this a problem?

The cy.wrap() above contains a Promise, which must either resolve or reject before Cypress continues. But it neither resolves or rejects which is why you get

cy.wrap() timed out waiting 4000ms to complete .

I think this might also be due to the incorrect timeout, it is hard to tell without debugging it, but at least one place where the Promise resolves is affected by it.