working with jakarta jemeter

8/7/2019 WORKING WITH JAKARTA JEMETER

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WORKING WITH JAKARTA JEMETER

Working with JMeter

TEST PLAN (consider as test

suite)

All work performed in Jmeter start in Test Plan

Each test plan has one or more than 1 Thread Group( Each thread group can have

number of threads, each user shows a virtual user)

Important :: We can consider test plan as a Test Suite

We can consider tread Group as Test Case

Thread Group (Consider as test

case)

Each thread group can be considered as Test case.

We can apply number of threads on each thread group, each thread represents 1

virtual user.

Thread group can contains

** components or steps that can be added in thread group.

A-> Listeners :-- provide access to the information gathered by Jmeter while

test case execution.

So we can say that it is for display results.

B-> Controllers :--

a-> Sampler : Tells jmeter to send request to the server.

b-> Logic Controller : Let us make logic in scripting.


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C-> Timers : - It is used to make delays between different requests.

D-> Assertions :- Assertions are used to make validations on the resultsreturned by server.

E-> Configuration Element : Work closely with samplers, can be used to add or

modify requests.


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HIERARCHY USED IN JMETER

< TEST PLAN >

(Each Test plan can have multiple thread groups)

< THREAD GROUP>

(Each thread group can have any of the following element)

[ LISTENER ]

[ SAMPLERS / LOGIC CONROLLERS ]

[ TIMERS ]

[ ASSERTIONS ]

[ CONFIGURATION ELEMENTS ]

JMETER WINDOW

Jmeter window has two parts

TEST PLAN WORKB

Test plan have series of steps that Workbench work as a

temporary workspace

Jmeter will execute one the execution to store test elements.

Of test plan starts. Elements in the workbench

does not save


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With test plan but that can

be saved independently.

WE ARE GOOD FOR THE BASICS NOW. NOW WE WILL START

ACTUAL WORKING

PRE REQUISIT BEFORE INSTALLATION

We must have JVM version more than 1.5

JMeter Installation

Download Jmeter from Jakarta website.

We have 2 options to download Bin file or Source File

Bin File is ready to work, just download it and unzip

Source File is used when we want to upgrade jmeter.

For installation

Unzip Folder.

Open Folder

Go to Bin

Double click on Jmeter.bat file.

WORKING WITH TEST PLAN

Test Plan Control Panel


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Here in Test Plan control panel, we have few properties to set

1-> User defined Variables :-

Here we defined variables that can be used throughout the test script.

Like we can create variable server with some value, in complete script we can usevalue of that variable by ${server}

2-> Run thread group consecutively.

This option mainly work when we have multiple thread group in a test plan

If we make check here it means only 1 thread group will execute at a time

otherwise all thread groups will work in parallel.

3-> Functional test Mode

It will save data which is returned by server and save to the file which is set in

listener.


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We can use this option when we want to check that server is returning correct

response but it will reduce performance.

Each Test Plan have at least 1 thread group

We can set many things into thread group

Number of Threads :- here we can set number of threads means number of virtual

users that will run for this tread group(test case)

Ramp up Period :- Total time in which all threads will apply to that test case

Eg. If we have ramp up time 60 sec and threads are 10, so 60/10, in every 6

second a thread will

initiate.

Loop count :- Number of time this test will repeat.

Scheduler : Scheduler allow user to ser start and end time of execution.

Duration : For how long this tread group will execute.


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If we enter end time in scheduler and set duration as well, duration

will override endtime.

Delay : how long it will take to start first thread, it we set delay value it will

override start time.

ELEMENTS OF TEST PLAN (UNDER THREAD GROUP)

CONTROLLERS :

Jmeter has two types of Controllers

1-> Sampler 2-> Login Controllers

1-> Sampler

It allow jmeter to send different type of requests to server.


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We have selected HTTP sampler, now we can see Sampler Control panel, we can

handle sampler request either by here or by adding configuration element.

We can set IP or server name with port

Logic Controllers

Logic controllers are mainly used to control executions of different controllers.

We can add as many samplers as we want under logic controller, then login

controller will handle them.


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Listener

Listener let us view the result of sampler in the form of tables, graph , log file etc.

Listeners are added to samplers to collect the data returned in form of

response of samplers.

Assertions

Assertions are used to make validations on response which we get from server.

Assertions are added as the child element of samplers.

Configuration Element :

Configuration elements are used to create defaults and variable that will be used in

samplers.

Configuration elements are executed before any sampler in that particularscope.

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