Sunday, August 2, 2009

Selenium Overview

Selenium is a suite of tools to automate web app testing across many platforms. It is a GUI based automation tool. Initially it is built by ThoughtWorks. It supports various browsers on various platforms.

Selenium Home Page
Selenium Projects
Tool History
Platform Support

Selenium Projects
Selenium has many projects. Following projects are mostly used by testers.


  1. Selenium IDE (IDE)
    Selenium IDE can be used only in FireFox. It is an add-on for FireFox. User can record the actions and can edit and debug the tests. It can be used to identify IDs, name and XPath of objects. Only one test at a time.

  2. Selenium Core (CORE)
    Selenium Core is the original Javascript-based testing system. This technique should work with any JavaScript enabled browser. It is the engine of both, Selenium IDE and Selenium RC (driven mode), but it also can be deployed on the desired application server. It is used specifically for the acceptance testing.
    User can record the tests using Selenium IDE and can use the same tests to run in other browsers with minimal modifications. It provides support to run the tests in HTA (HTML Applications) Mode. This mode works only in IE.

  3. Selenium Remote Control (RC)
    Selenium Remote Control is a test tool that allows user to write automated web application UI tests in few programming languages against any HTTP website using any mainstream JavaScript-enabled browser. User can write the tests (More expressive programming language than the Selenese HTML table format) in Java, DotNet, Perl, Ruby and PHP. Also it supports few testing frameworks.

  4. Selenium Grid
    Selenium Grid allows easily to run multiple tests in parallel, on multiple machines, in an
    heterogeneous environment by cutting down the time required for test execution. Using this, user can run multiple instances of Selenium Remote Control in parallel.

Supported browsers
Selenium tools can run in following browsers.
  • Internet Explorer
  • FireFox
  • Opera
  • Safari
  • Seamonkey

Supported Operating Systems
Users can execute the selenium tests in following OS.
  • Windows
  • Linux
  • Solaris
  • OS X

Supported Programming languages
Below languages are supported by Selenium RC.
  • C# (DotNet)
  • Java
  • Perl
  • Ruby
  • Python
  • PHP

Lot of presentations and documents about Selenium are shared in SlideShare. You can do simple search and get many docs.

Recorded Selenese code through IDE
 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head profile="http://selenium-ide.openqa.org/profiles/test-case">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="selenium.base" href="" />
<title>GoogleSearch2</title>
</head>
<body>
<table cellpadding="1" cellspacing="1" border="1">
<thead>
<tr><td rowspan="1" colspan="3">GoogleSearch2</td></tr>
</thead><tbody>
<tr>
<td>open</td>
<td>/</td>
<td></td>
</tr>
<tr>
<td>type</td>
<td>q</td>
<td>silk4j tutorial</td>
</tr>
<tr>
<td>click</td>
<td>btnG</td>
<td></td>
</tr>
<tr>
<td>waitForPageToLoad</td>
<td>30000</td>
<td></td>
</tr>
<tr>
<td>type</td>
<td>q</td>
<td>Silktest extension kit</td>
</tr>
<tr>
<td>click</td>
<td>btnG</td>
<td></td>
</tr>
<tr>
<td>waitForPageToLoad</td>
<td>30000</td>
<td></td>
</tr>
<tr>
<td>click</td>
<td>btnG</td>
<td></td>
</tr>
<tr>
<td>waitForPageToLoad</td>
<td>30000</td>
<td></td>
</tr>

</tbody></table>
</body>
</html>

Java code - Selenium RC
 

package com.example.tests;

import com.thoughtworks.selenium.*;
import java.util.regex.Pattern;

public class NewTest extends SeleneseTestCase {
public void setUp() throws Exception {
setUp("http://www.google.com/", "*chrome");
}
public void testNew() throws Exception {
selenium.open("/");
selenium.type("q", "silk4j tutorial");
selenium.click("btnG");
selenium.waitForPageToLoad("30000");
selenium.type("q", "Silktest extension kit");
selenium.click("btnG");
selenium.waitForPageToLoad("30000");
selenium.click("btnG");
selenium.waitForPageToLoad("30000");
System.out.println("New Test is completed.");
}
public void tearDown() {
browser.stop();
}
}

1 comment:

neetu said...

Amazing tool. I haven't heard about this tool yet and though after reading your blog I am excited to use it. I would like to know whether its trial version version is available or not. Software Testing Services