This is a small presentation to illustrate some of the basic JMeter functions/ features that can be used to accurately construct JMeter scripts

1. JMeter Features
By Tharinda Liyanage

2. XPath
• XPath is used to navigate through elements and attributes in an XML
document
//form[@name='fm1']//input[@name='lt']/@value

4. XPath Extractor
//form[@name='fm1']//input[@name='lt']/@value

5. • JMeter variable
– ${t}

6. Regular Expression
• Matches string patterns
• input type="hidden" name="lt" value="(.*)"
Reference Name: MYREF
Regex: name="(.+?)" value="(.+?)"
Template: $1$$2$

7. Reg Ex
• ( ) - grouping
• [ ] - character classes
• { } - repetition
• * + ? - repetition
• . - wild-card character
• - escape character
• | - alternatives
• ^ $ - start and end of string or line

8. Functions
• __log()
• __threadNum()- The thread number function simply returns the number of the thread currently being
executed
${__log(${__threadNum},,,******Thread_Number is*********:: )}

9. • __machineName()
The machineName function returns the local host name

10. • __RandomString ()
RandomString(var1,var2,var3),where:
var1 - Random string length
var2 - Chars to use for random string generation
var3 - Name of variable in which to store the result (optional)

11. • Counter

12. Database Testing
• Step 1: Put downloaded JDBC driver (sqljdbc4.jar) under "JMeter/lib/" directory.
• Step 2 : Adding JDBC Connection Configuration

13. • Step 3: Adding JDBC Request