Cypress does not always executes click on element

Question

I am automating Google Calculator. And from time to time Cypress is not able to execute click on button. The tests click on buttons (0 to 9 ) and do some simple math operations. And in 30% chance it can not click on element and the test will fail.

I also recorded a video when issue appears.

Video here

My Project is located here: https://github.com/afiliptsov/test-project

To run the test run : "npm run test:e2e:functional"

I tried to use different locator. Initially i was using just ID ex(#cwbt15 ) but after i made more specific locator ( #cwbt15 > .cwbtpl > .cwbts) and still having same issue.

Does anyone knows why it happens and how to avoid such behavior?

The project structure is :

• cypress/PageObject.js - place where all elements declared.
• cypress/support/commands.js - place where function click created and verification of value getting updated.
• cypress/integration/functional/delete.spec.js - test which was on the video

Answer 1

For me this code worked:

Inside your click methods add : { force: true } It will make force click.

Also add: cy.wait(150) to beforeEach or before click where your test fails.

It is just workaround not a solution.

Link to Cypress Issue

Also i saw this alternative:

cy.get('#query-btn').invoke('width').should('be.gt', 0)

cy.get('#query-btn').invoke('width').should('be. greaterThan', 0)

But it didnt work out for me. Maybe will be usefull for someone!

Answer 2

https://github.com/cypress-io/cypress/issues/2928 helped me.

cy.get('[data-qa="select_workers-list"]'.contains('+ New Worker').trigger('mouseover').click();

Answer 3

2021 here, with cypress version "6.x.x" or "7.x.x".

My solution:

cy.get("YOUR_SELECTOR").trigger("click");

Explanation:

In my case, I needed to watch a bit deeper what's going on. I started by pin the click action like this:

Then watch the console, and you should see something like:

Now click on line Mouse Events, it should display a table:

So basically, when Cypress executes the click function, it triggers all those events but somehow my component behave the way that it is detached the moment where click event is triggered.

So I just simplified the click by doing:

cy.get("YOUR_SELECTOR").trigger("click");

And it worked 🎉

Hope this will fix your issue or at least help you debug and understand what's wrong.

Answer 4

Whoever finds this problem, the official way of handling it is described here: https://www.cypress.io/blog/2019/01/22/when-can-the-test-click/

TLDR: What @jpvantuyl said, cypress clicks the button before the onclick event is there. The lib cypress-pipe will add a .pipe method that if followed by .should will retry a function until the condition is true or it times out.

Example:

cy
  .get(numbers.result.idLocator)
  .pipe($el => $el.click()) // try this
  .pipe(
    // next line will make assertions on the element returned by this pipe
    () => cy.get(calculatorScreen.resultOutput.idLocator)
  )
  .should("contain", "0"); // until this happens or times out

Answer 5

This could be because the application is attaching behaviors to the button via JavaScript. When that script takes a long time to execute it allows Cypress to click the button before the OnClick event is there.

See: https://www.cypress.io/blog/2018/02/05/when-can-the-test-start/

Cypress recommends tracking when the underlying JS is in place with something like:

function waitForAppStart() {
  // keeps rechecking "appHasStarted" variable
  return new Cypress.Promise((resolve, reject) => {
    const isReady = () => {
      if (appHasStarted) {
        return resolve()
      }
      setTimeout(isReady, 0)
    }
    isReady()
  })
}
it('greets', () => {
  cy.visit('app.html', {
    onBeforeLoad: spyOnAddEventListener
  }).then(waitForAppStart)
  // all other assertion will run only when
  // the application has started
  cy.get('#name').type('Cypress{enter}')
  cy.contains('#answer', 'Cypress')
})

Answer 6

Something I just learned from a colleague after none of the above worked for me and after hours of searching. Just blew my mind. Just add another .click()...

before:

cy.contains('some string').click(); 

In the left Cypress menu click on the action and you'll see the indicator that it clicks the correct part, but nothing happens. Do it manual in the browser and it works.

Fix:

cy.contains('some string').click().click();

and all of the sudden the string is clicked and test is moving on to the next page

Answer 7

FWIW: I was having problems submitting/navigating after a Google Places address selection. I believe my component wasn't re-rendering post-address selection.

To solve my issue, after address selection, I selected a random text element, clicked on it (no-op) and then clicked on my continue button and it worked fine.