@testing-library/user-event/dist/cjs/document/interceptor.js

Fire events the same way the user does

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

const Interceptor = Symbol('Interceptor for programmatical calls');
function prepareInterceptor(element, propName, interceptorImpl) {
    const prototypeDescriptor = Object.getOwnPropertyDescriptor(element.constructor.prototype, propName);
    const objectDescriptor = Object.getOwnPropertyDescriptor(element, propName);
    const target = (prototypeDescriptor === null || prototypeDescriptor === void 0 ? void 0 : prototypeDescriptor.set) ? 'set' : 'value';
    /* istanbul ignore if */ if (typeof (prototypeDescriptor === null || prototypeDescriptor === void 0 ? void 0 : prototypeDescriptor[target]) !== 'function' || prototypeDescriptor[target][Interceptor]) {
        throw new Error(`Element ${element.tagName} does not implement "${String(propName)}".`);
    }
    function intercept(...args) {
        const { applyNative =false , realArgs , then ,  } = interceptorImpl.call(this, ...args);
        const realFunc = (!applyNative && objectDescriptor || prototypeDescriptor)[target];
        if (target === 'set') {
            realFunc.call(this, realArgs);
        } else {
            realFunc.call(this, ...realArgs);
        }
        then === null || then === void 0 ? void 0 : then();
    }
    intercept[Interceptor] = Interceptor;
    Object.defineProperty(element, propName, {
        ...objectDescriptor !== null && objectDescriptor !== void 0 ? objectDescriptor : prototypeDescriptor,
        [target]: intercept
    });
}

exports.prepareInterceptor = prepareInterceptor;