attributeEquals.js
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/**
* Checks if the given attribute of an element has the expected value.
*
* ```
* this.demoTest = function (client) {
* browser.assert.attributeEquals('body', 'data-attr', 'some value');
* };
* ```
*
* @method attributeEquals
* @param {string} selector The selector (CSS / Xpath) used to locate the element.
* @param {string} attribute The attribute name
* @param {string} expected The expected value of the attribute to check.
* @param {string} [message] Optional log message to display in the output. If missing, one is displayed by default.
* @api assertions
*/
var util = require('util');
exports.assertion = function(selector, attribute, expected, msg) {
var DEFAULT_MSG = 'Testing if attribute %s of <%s> equals "%s".';
var MSG_ELEMENT_NOT_FOUND = DEFAULT_MSG + ' ' + 'Element could not be located.';
var MSG_ATTR_NOT_FOUND = DEFAULT_MSG + ' ' + 'Element does not have a ' + attribute + ' attribute.';
this.message = msg || util.format(DEFAULT_MSG, attribute, selector, expected);
this.expected = function() {
return expected;
};
this.pass = function(value) {
return value === expected;
};
this.failure = function(result) {
var failed = (result === false) ||
// no such element
result && (result.status === -1 || result.value === null);
if (failed) {
var defaultMsg = MSG_ELEMENT_NOT_FOUND;
if (result && result.value === null) {
defaultMsg = MSG_ATTR_NOT_FOUND;
}
this.message = msg || util.format(defaultMsg, attribute, selector, expected);
}
return failed;
};
this.value = function(result) {
return result.value;
};
this.command = function(callback) {
return this.api.getAttribute(selector, attribute, callback);
};
};