siesta-lite/tests/082_mousewheel.t.js

Stress-free JavaScript unit testing and functional testing tool, works in NodeJS and browsers

describe('Should support simulating mouse wheel events', function (t) {
    // not supported for native Puppeteer
    if (t.simulator.type == 'native' && t.harness.isPuppeteer) return

    var field = new Ext.form.NumberField({
        id       : 'field',
        renderTo : document.body
    });

    var inputEl = field.inputEl.dom;

    var onWheel = function (event) {
        return  event.browserEvent.deltaX === 10 &&
                event.browserEvent.deltaY === 10 &&
                event.browserEvent.deltaZ === 0;
    };

    // native simulator has very poor support for mouse wheel
    if (t.simulator.type == 'synthetic') t.isFiredWithSignature(inputEl, 'wheel', onWheel)

    t.firesOk({
        observable  : inputEl,
        events      : {
            'wheel'     : '>=1'
        }
    })

    t.chain(
        { click : inputEl },

        { wheel : inputEl, options : { deltaX : 10, deltaY : 10, deltaZ : 0 }}
    );
})