Selenium and The Grinder

Selenium and Grinder: A powerful duo for load testing Eric Pugh Principle, OpenSource Connections [email_address] CvilleJUG March 21st, 2006

What we’re going to learn! ,[object Object],[object Object],[object Object]

[object Object],[object Object]

Selenium can be run two ways: “TestRunner” and “Driven”

“TestRunner” Mode ,[object Object],[object Object]

“Driven” Mode ,[object Object]

“Driven” Mode ,[object Object],// Java public void testRugbyHome() { selenium.open("http://localhost:3000/sprint"); selenium.click("submit"); selenium.assertTitle("Rugby"); selenium.click("link=Name"); selenium.assertTitle("Rugby"); } # Ruby def testRugbyHome puts selenium.open "http://localhost:3000/sprint" puts selenium.clickAndWait "submit" puts selenium.assertTitle "Rugby" puts selenium.clickAndWait "link=Name" puts selenium.assertTitle "Rugby" end # Python selenium.open('http://localhost:3000/sprint') print selenium.clickAndWait('submit') print selenium.assertTitle('Rugby') print selenium.clickAndWait('submit') print selenium.assertTitle('Rugby')

“Driven” Mode ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],FYI: “Driven” will be renamed “Remote Control” in the next version of Selenium

We’ll focus on “TestRunner” mode!

Intro to Selenese ,[object Object],[object Object],<table> <tr> <td>command</td><td>target</td><td>value</td> </tr> </table>

Selenese Commands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Selenese Element Locators ,[object Object],[object Object],id= id Select the element with the specified @id attribute. name= name Select the first element with the specified @name attribute. identifier= id Select the element with the specified @id attribute. If no match is found, select the first element whose @name attribute is id . link= textPattern Select the link (anchor) element which contains text matching the specified pattern .

Selenese Element Locator using DOM ,[object Object],[object Object],• dom=document.forms['myForm'].myDropdown • dom=document.images[56]

Selenese Element Locator using XPath ,[object Object],[object Object],• xpath=//img[@alt='The image alt text'] • xpath=//table[@id='table1']//tr[4]/td[2] • xpath=//div[@id='workflowMenu']//a[@id='goToPreviousStatus']/ Tip: IE’s implementation of XPath is buggy, your mileage may vary…

Common Actions: open ,[object Object],[object Object],Tip: Selenium can only open URL’s that are on the same site due to “Cross Site Scripting” security policy in browsers. We’ll discuss how to get around this later.

Common Actions: click/clickAndWait ,[object Object],[object Object],[object Object]

Common Actions: type ,[object Object],[object Object]

Common Actions: select ,[object Object],[object Object]

Select Option Specifiers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Check Commands ,[object Object],[object Object],[object Object],[object Object],[object Object],Tip: A good practice is to Assert that you are on the correct page and then Verify the contents of the page.

String Matching with Check Commands ,[object Object],glob: pattern Match a string against a "glob" pattern. "Glob" is a kind of limited regular-expression syntax typically used in command-line shells. In a glob pattern, "*" represents any sequence of characters, and "?" represents any single character. Glob patterns match against the entire string. regexp: regexp Match a string using a regular-expression. The full power of JavaScript regular-expressions is available. exact: string Match a string exactly, verbatim, without any of that fancy wildcard stuff.

Common Checks: assertTitle ,[object Object],[object Object]

Common Checks: assertValue ,[object Object],[object Object],[object Object]

Common Checks: assertAttribute ,[object Object],[object Object],[object Object]

Common Checks: assertTextPresent ,[object Object],[object Object],[object Object]

There are many more commands, but that’s enough to get started!

Isn’t there an easier way then writing the HTML by hand?

Selenium IDE ,[object Object],[object Object],[object Object],Tip: Quickly build the skeleton of your test by using the recorder, then go back and add your verify checks manually.

Now how do we do load testing?

The Grinder ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],FYI: the official name is “The Grinder” not “Grinder”!

What you need to know ,[object Object],[object Object],[object Object]

The Grinder Design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Generating Grinder script from Selenium Test ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Getting Grinder Installed ,[object Object]

You’ve got Questions? I’ve got Answers! Email me at epugh@opensourceconnections!

Selenium and The Grinder

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