mguillem / JSErrorCollector

Collects JS errors and make them available from WebDriver

JSErrorCollector

This project allows to capture JavaScript errors while running tests with WebDriver (currently only in Java). Ideally this feature should be built-in WebDriver but it is not (yet?) the case (see WebDriver issue [API for checking for JavaScript errors on the page] 1 for details). Other information concerning JavaScript error capturing with WebDriver is available in this [blog post] 3.

Features

• provide access to JavaScript errors while running tests with a FirefoxDriver (in Java)

Usage in Java

FirefoxProfile ffProfile = new FirefoxProfile();
JavaScriptError.addExtension(ffProfile);
final WebDriver driver = new FirefoxDriver(ffProfile);

driver.get("http://somesite");
		
final List<JavaScriptError> jsErrors = JavaScriptError.readErrors(driver);
assertTrue("JS errors occured: " + jsErrors, jsErrors.isEmpty());

Download

Pre-built jar file is available in [dist folder] 2.

For non Java users

The Firefox extension (the [.xpi file] 5) can be used from any language having a WebDriver binding. Here are a few examples:

• [in Ruby from Cucumber + Capybara] 4.
• [in Ruby with Watir] 8.

A .NET port is available: [JSErrorCollector.NET by protectedtrust] 7.

License

JSErrorCollector is licensed under the terms of the [Apache License 2] 6.