[Solved] Given this Cypress test snippet:const onClick = cy.spy(); cy.mount(); cy.get('button').click(); expect(onClick).to.have.been.calledOnce();What will be the test result? | Cypress

Cypress - Component Testing

Given this Cypress test snippet:

const onClick = cy.spy();
cy.mount(

What will be the test result?

ATest passes because the click triggers onClick once

BTest passes but onClick is called multiple times

CTest fails because onClick is never called

DTest fails due to syntax error in expect statement

Step-by-Step Solution

Solution:

Step 1: Analyze the spy and mount setup
onClick is a spy passed as prop; Button is mounted with it.
Step 2: Check the assertion syntax
The assertion uses calledOnce() which is incorrect syntax; it should be calledOnce without parentheses.
Final Answer:
Test fails due to syntax error in expect statement -> Option D
Quick Check:
calledOnce() is invalid syntax [OK]

Quick Trick: Use calledOnce without () in assertions [OK]

Common Mistakes:

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