javascript - Cypress: fail if page doesn't contain text

Question

I'm trying to come up with a generic method for checking in my Cypress tests that the current page doesn't have some text.

Basically something like the opposite to cy.contains('Foo') - Foo must be missing and that's what is expected.

In other similar question the following method was suggested:

cy.contains('Foo').should('not.exist')

It seems to work for removed elements, not for elements that should not exist at all.

If possible I would like this solution to be as generic as possible because HTML class/XPath is unknown in my use case therefore I can not use

cy.get('.foo-container').should('not.exist');

Perhaps this could be some kind of conditional?

In pseudocode:

if (cy.contains('Foo')) {
  throw new Error('Foo must be absent instead')
}

Failing test:

cy.visit('https://example.cypress.io/commands/actions')
cy.contains('lalafo').should('not.exists') //AssertionError Timed out retrying after 4000ms: Expected to find content: 'lalafo' but never did.

Cypress version: 6.3.0

question from:https://stackoverflow.com/questions/65863092/cypress-fail-if-page-doesnt-contain-text

Answer 1

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