Custom jasmine matchers with waiting

matchers.js

describe('Protractor Experiments', function () {    
    beforeEach(function () {
        var customMatchers = {
            toAppear: function () {
                return {
                    compare: function(actual, expected) {
                        return {
                            pass: actual.ptor_.wait(protractor.ExpectedConditions.visibilityOf(actual), 2000)
                                .thenCatch((err) => false),
                            message: 'OLOLO FAILED! ' + actual.parentElementArrayFinder.locator_.toString()
                        }
                    }
                };
            },
            toDissapear: function () {
                return {
                    compare: function(actual, expected) {
                        return {
                            pass: actual.ptor_.wait(protractor.ExpectedConditions.invisibilityOf(actual), 5000).then(undefined, err=> false),
                            message: 'OLOLO FAILED! ' + actual.parentElementArrayFinder.locator_.toString()
                        };
                    }
                };
            }
        };

        jasmine.addMatchers(customMatchers);

    });
    
  fit('creating custom jasmine matcher function with wait', function () {
        browser.get('http://www.protractortest.org/testapp/ng1/#/form');
        //expect($('body')).toAppear();

        let nonexit = $('nonexist');
        //Тут весь фокус - нужно передавать промис а не ElementFinder :)
        expect(protractor.promise.fulfilled(nonexit)).toAppear();
        expect(protractor.promise.fulfilled(nonexit)).toAppear();
  });
  
});