Capture ExtJS Ajax Error (Selenium Web Driver + JUnit + ExtJS)

Here is sample code to check ExtJS Ajax error. It's highly recommended to check this error during teardown(@After), because WebDriver won't automatically capture these problems.

First, need to inject the following JS code to the page under testing:

	//Client side utilities for Selenium tests of ExtJS web applications
	//requires ExtJS and Underscore libraries
	//SJTXE - Selenium JavaScript Testing eXtension for ExtJS
	(function(root, Ext) {
	var root = root || window;
	var me = root;
	var Ext = Ext;
	//private vars
	var hasAjaxFailure = false;
	var onAjaxError = function(conn, response, options, eOpts) {
	hasAjaxFailure = true;
	};
	Ext.onReady(function() {
	Ext.Ajax.on({
	requestexception: onAjaxError
	});
	});
	//exposed object
	var SJTXE = {
	VERSION: '0.0',
	hasAjaxFailure: function() {return hasAjaxFailure}
	};
	root.SJTXE = SJTXE;
	return SJTXE;
	})(this, Ext);

view raw ExtJSError.js hosted with ❤ by GitHub

 Java code to inject the code and to check ExtJS Ajax error:

	//make sure it's run after every page load
	public static void injectSJTXE(WebDriver driver) throws IOException {
	URL url;
	String js;
	url = Resources.getResource(ExtJSUtil.class, "SJTXE.js");
	js = Resources.toString(url, Charsets.UTF_8);
	((JavascriptExecutor) driver).executeScript(js);
	}
	//code to check if there are ExtJS Ajax error
	Boolean hasAjaxFailure = (Boolean) ((JavascriptExecutor) driver).executeScript("return SJTXE.hasAjaxFailure();");

view raw SJTXE.java hosted with ❤ by GitHub