Asserting an element is focused

Question

According to the How do I assert an element is focused? thread, you can check if an element is focused by switching to an activeElement() and assert this is the

Answer 1

For the future readers, I've created a custom matcher to assert if an element is active/focused:

beforeEach(function() {
    jasmine.addMatchers({
        toBeActive: function() {
            return {
                compare: function(elm) {
                    return {
                        pass: elm.getId().then(function (activeElementID) {
                            return browser.driver.switchTo().activeElement().getId().then(function (currentElementID) {
                                return jasmine.matchersUtil.equals(currentElementID, activeElementID);
                            });
                        })
                    };
                }
            };
        }
    });
});

Usage:

expect(element(by.css("#myid")).toBeActive();