With Cypress, you can easily create tests for your modern web applications, debug them visually, and automatically run them in your continuous integration builds.

Cypress Community

Hi All! In my tested app I'm using a WebGL based library I need to test. Since I cannot use visual testing for various reasons, I have exposed the library to the global namespace and I'm trying to spy on calls to this library methods. Some methods are asynchronous, though. I wasn't able so far to create a spy on a library method and verify its returned RESOLVED value was correct.     


    const fgspy = cy.spy(chart, 'foreground');
        
        cy.get('.myButton').click();

        fgspy.getCall(0).returnValue.then( res => {

            expect(fgRes.whatever)....
            
        });
       
        I tried using WRAP but I had a couple of issues there: first - test was green though it failed assertions, second - I had a typing issue (working in TS). Any assistance will be much appreciated 🙂 !!!