Jmeter Functions With Examples

 Jmeter Functions are very useful when it comes to scripting in jmeter. This includes how to use jmeter in built functions , how to use custom functions etc with detailed example

How to Reuse Code in Jmeter

 There are three Jmeter Elements with which we can reuse existing code - 

1. Include Controller

 2.Modeule Controller

  3.Test Fragment

 

 

How to Debug Jmeter Script?

 There are three ways to Debug Jmeter script -

1. Debug Sampler

2.Debug post-processor

3.blazemeter step by step debugger.

Github code example link -https://github.com/qaautomated/Jmeter

 

Jmeter Beanshell Sampler Vs JSR223 Sampler

When you want to write your own code in jmeter you can use Beanshell Sampler or more advance JSR223 Sampler. I have explained these two samplers in the video along with simple example on How to write data to csv file.

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Github Link -https://github.com/qaautomated/Jmeter

Jmeter Throughput Controller and Weighted Switch Controller

Jmeter Throughput Controller and Weighted Switch Controller is used when we want to give specific weightage for specific samplers. 

Github link- https://github.com/qaautomated/Jmeter 

Jmeter Ultimate Thread Group

 In this we are going to see in which performance scenarios we can use ultimate thread group and how to configure ultimate thread group.

Github link for example -https://github.com/qaautomated/Jmeter

 

 

Jmeter Setup and Tear Down Thread Group

Jmeter Setup and tear down thread group and very important to configure test where you want certail things to execute before and after your tests like creation of csv data files , login with admin user once etc. Learn in detail about set up and tear down thread group in this video with complete example . https://github.com/qaautomated/Jmeter/blob/main/setUpAndTearDown.jmx Learn more about jmeter - https://www.qaautomated.com/p/blog-page_7.html

 

 

Concurrency Thread Group

 In This video you will learn how to Add concurrency thread group in your jmeter test plan and how to configure it.

 

 

Jmeter Post Processors

 In this video I will be explaining three types of post processors -

1.Regular Extractor

2. Json Extractor

3. Boundry Extractor

 

 

 

 

Jmeter Logging

 In the video we will learn how to add and view logs with Jmeter and Debug the test scripts in more details.

JMeter Utilizing Data Set

JMeter Test Script Execution Order and Scoping Rules

This video is very important as to create any jmeter script you need to understand these rules first.

So check this out -

JMeterTimers -Pacing and Thick Time

Learn about Jmeter Pacing and Think Time, with help of simple example explained in below video.

write your queries in comments section below.

JMeter Runtime Random Order and interleave controller

This video is for understanding Runtime Controller, Random Order Controller and interleave controller with simple examples.

JMeter If controller and While Controller

This is the video explaining how If controller and while controller works in JMeter with detailed examples.

JMeter Simple Controller and Transaction Controller

This is JMeter tutorial video explaining simple and transaction controller in detail along with example.

JMeter Commonly Used Listeners

The video tutorial covers  most commonly used JMeter Listeners.
1. View Result Tree
2. Aggregator Report

HTTP Request Sampler

HTTP request sampler is most commonly used to send various type of request to server. You can add this request under Thread Group. Now let us see how we can configure the request.



1. Server Name or IP - First thing we need to specify here is the website url to which we want to send the request.
2. Method - We need to specify the method fo request such as GET,POST,DELETE etc
3. Protocol is http/https and port number if applicable. We need to also specify exact url path.
4. If it is required to send payload along with request then there are 3 options to do so such as Parameters, json body data and fole upload.
5.We can also specify how we want to deal with redirects.

In case of advance config we can configure elements given below -



1. Implementation - HTTPClient4 /Java / as per HHT Request Default.
2. Timeout - Wait for connection or response time outs.
3.If we want to store embedded resources we can check "Retrieve All Embedded Resources".
4. If we want to connect to proxy server for sending the request then we can configure that in Advanced section.

Jmeter Configuration Elements

In this post we will learn about few of the most commonly used configuration elements.

Video Tutorial -

 

HTTP Request Defaults -

For each HTTP request samplers which we mention in the test script there are chances that some fields like protocol and server IP is common for all the requests. In this case instead of mentioning the same in all HTTP Requests we can define this in HTTP Request Default.

HTTP Header Manager -

This element lets you add or override HTTP Request header. The headers specified here will be added for all samplers under its scope.Add the header as given below and this header is applicable for all the samplers under its scope.

 

 HTTP Cache Manager -

Web driver uses caching to reduce traffic over internet by storing the resources for subsequent runs.To mimic this behavior we can use HTTP cache manager .First time when we hit the url jmeter script store the resource file. The file contains last modified date and time information on the basis of which  cache manager checks weather the resources are updated or not and if the resources are updated then it downloads the updated resource file.

      If Clear cache option is checked then after each iteration cache will be cleared. By default 5000 elements are stored in cache. If Use Cache control option is checked  and if the request is GET request and timestamp is in future, then the sampler returns response from the cache. 

 

HTTP Cookie Manager -

Many web applications store some information as cookie and this jmeter element is used to store the cookies and use the information later during test runs. Each jmeter thread contains cookie storage space, if we are testing application where cookie is sued for storing information for perticular sessions then each jmeter thread will have its own session.

        Cookies can be added manually as shown in below figure which are called as user defined cookies. If clear cookies on each iteration option is checked then for each iteration cookies will be removed.