food/test/e2e/custom-assertions/elementCount.js

27 lines
785 B
JavaScript

// A custom Nightwatch assertion.
// the name of the method is the filename.
// can be used in tests like this:
//
// browser.assert.elementCount(selector, count)
//
// for how to write custom assertions see
// http://nightwatchjs.org/guide#writing-custom-assertions
exports.assertion = function (selector, count) {
this.message = 'Testing if element <' + selector + '> has count: ' + count;
this.expected = count;
this.pass = function (val) {
return val === this.expected;
}
this.value = function (res) {
return res.value;
}
this.command = function (cb) {
var self = this;
return this.api.execute(function (selector) {
return document.querySelectorAll(selector).length;
}, [selector], function (res) {
cb.call(self, res);
});
}
}