var seq = _(['IntegerA', 'IntegerB']).map(function (name) {

return function (sum) {

return driver.waitForElementByName(name, 3000).then(function (el) {

var x = _.random(0,10);

sum += x;

return el.type('' + x).then(function () { return sum; })

.elementByName('Done').click().sleep(1000); // dismissing keyboard

}).then(function () { return sum; });

};

});

return seq.reduce(Q.when, new Q(0));