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Selenium RC | Tests Development & Conversion
Now we’ll illustrate how to program your own tests using examples in each of the supported programming languages. There are essentially two tasks:
- Generate your script into a programming language from Selenium-IDE, optionally modifying the result.
- Write a very simple main program that executes the generated code.
Optionally, you can adopt a test engine platform like JUnit or TestNG for Java, or NUnit for .NET if you are using one of those languages.
Here, we show language-specific examples. The language-specific APIs tend to differ from one to another, so you’ll find a separate explanation for each.
- Java
- C#
- Python
- Ruby
- Perl, PHP
Java
For Java, people use either JUnit or TestNG as the test engine. Some development environments like Eclipse have direct support for these via plug-ins. This makes it even easier. Teaching JUnit or TestNG is beyond the scope of this document however materials may be found online and there are publications available. If you are already a “java-shop” chances are your developers will already have some experience with one of these test frameworks.You will probably want to rename the test class from “NewTest” to something of your own choosing. Also, you will need to change the browser-open parameters in the statement:
selenium = new DefaultSelenium("localhost", 4444, "*iehta", "http://www.google.com/");
The Selenium-IDE generated code will look like this. This example has comments added manually for additional clarity.
package com.example.tests;
// We specify the package of our tests
import com.thoughtworks.selenium.*;
// This is the driver's import. You'll use this for instantiating a
// browser and making it do what you need.
import java.util.regex.Pattern;
// Selenium-IDE add the Pattern module because it's sometimes used for
// regex validations. You can remove the module if it's not used in your
// script.
public class NewTest extends SeleneseTestCase {
// We create our Selenium test case
public void setUp() throws Exception {
setUp("http://www.google.com/", "*firefox");
// We instantiate and start the browser
}
public void testNew() throws Exception {
selenium.open("/");
selenium.type("q", "selenium rc");
selenium.click("btnG");
selenium.waitForPageToLoad("30000");
assertTrue(selenium.isTextPresent("Results * for selenium rc"));
// These are the real test steps
}
}
C#
The .NET Client Driver works with Microsoft.NET. It can be used with any .NET testing framework like NUnit or the Visual Studio 2005 Team System.
Selenium-IDE assumes you will use NUnit as your testing framework. You can see this in the generated code below. It includes the using statement for NUnit along with corresponding NUnit attributes identifying the role for each member function of the test class.
You will probably have to rename the test class from “NewTest” to something of your own choosing. Also, you will need to change the browser-open parameters in the statement:
selenium = new DefaultSelenium("localhost", 4444, "*iehta", "http://www.google.com/");
The generated code will look similar to this.
You can allow NUnit to manage the execution of your tests. Or alternatively, you can write a simple main() program that instantiates the test object and runs each of the three methods, SetupTest(), TheNewTest(), and TeardownTest() in turn.
Python for Selenium RC
Pyunit is the test framework to use for Python. To learn Pyunit refer to its official documentation <http://docs.python.org/library/unittest.html>_.The basic test structure is:Ruby
Selenium-IDE generates reasonable Ruby, but requires the old Selenium gem. This is a problem because the official Ruby driver for Selenium is the Selenium-Client gem, not the old Selenium gem. In fact, the Selenium gem is no longer even under active development.
Therefore, it is advisable to update any Ruby scripts generated by the IDE as follows:
1. On line 1, change require "selenium" to require "selenium/client"
2. On line 11, change Selenium::SeleniumDriver.new to Selenium::Client::Driver.new
You probably also want to change the class name to something more informative than “Untitled,” and change the test method’s name to something other than “test_untitled.”
Here is a simple example created by modifying the Ruby code generated by Selenium IDE, as described above.
Perl, PHP
The members of the documentation team have not used Selenium RC with Perl or PHP. If you are using Selenium RC with either of these two languages please contact the Documentation Team (see the chapter on contributing). We would love to include some examples from you and your experiences, to support Perl and PHP users.
