Jmeter_Learning_Path_For_Functional_Testing

• Understanding Jmeter Project Basic Elements
  • Thread Group
  • Samples
  • Listener
• Creating Test :
  • Manually by hand configuring sample data
  • Recording using a proxy
  • API -Jmeter Test Stub Generation using Using SwaggerCodeGen
    • download jar from : wget https://oss.sonatype.org/content/repositories/releases/io/swagger/swagger-codegen-cli/2.2.1/swagger-codegen-cli-2.2.1.jar

java -jar dir/swagger-codegen-cli.jar \
generate \
-i resources/2_0/petstore.yaml \
-l jmeter \
-o ~/Downloads/swagger-petstore-gen-jmeter

• Assertions
  • Using builtin elements
  • Using Groovy Assertion:
    • PASS: SampleResult.setSuccessful(true);
    • FAIL:SampleResult.setSuccessful(false);
• Data Types Used in Jmeter
  • Static data specific to the environment
    • Login Credentials
    • Host
    • port
  • Dynamic Data that can be generated on the fly
    • Unique Data that can be used for only one time
    • Stamps
    • Conditionally generated Data
    • Resource ID
• Variables and Properties:
  • User-Defined Variables
    • Scope
    • Defining @ Project Level
    • Defining UDV Element
    • Getting via Groovy
  • Variables
    • Scope: Local to a thread
    • Defining @ ThreadGroup Level
    • Creating via Groovy
    • Getting/passing variable between the steps via Groovy
    • Sharing object between the steps via Groovy
  • Properties
    • Scope
    • Passing From Command Line Interface in Headless mode
    • Creating via Groovy
    • Getting via Groovy

Creating Robust Script that can run on multiple Environments

• Parameterisng request with Variables and Properties
• Parameterisng request body with Variables and Properties

Managing Session across:

• Config Element Cookie Manager
• Groovy Way extracting and passing cookie as header manager
• Samples
• Thread Groups

Looping

• Executing Only once
• Executing a Sample/Request in a loop or Until State Changes to Expected Value
  • With Some Delay between repetitions
  • With Max_Timeout value
  • With Max_Count of the repetition count

Functions in Jmeter

• ${__BeanShell(import org.apache.jmeter.services.FileServer; FileServer.getFileServer().getBaseDir();)}
• ${__groogy(import org.apache.jmeter.services.FileServer; FileServer.getFileServer().getBaseDir();)}
• ${__time(dd/mm/yyyy,)}

Correlation

Branching

• if Controller
• While loop controller

Designing Test

• Grouping Samplers using Simple Controller
• Modularsing Test Divide and Concur
• Identifying Common blocks and keep them in fragments and call them using Module Controller
• Identifying Common blocks and keep them in fragments and call them other JMeter scripts using include Controller

Clearing Stray Data of Previous Runs

Debugging Options

• Console log
• Properties view
• Debug Sampler

Options for Running in Headless Mode

• -n, --nongui run JMeter in nongui mode
• -J, --jmeterproperty =
• -l, --logfile logfile name
• -q, --addprop additional JMeter property file(s)

Note: jmeter --help list all command line arguments

Sample Project Hiearachy

-- Test fragment (login)
  -- HTTP Cookie Manager
  -- HTTP Request (post with username and password)
-- Test fragment (logout)
  -- HTTP Cookie Manager
  -- HTTP request (includes cookie)

--Thread Group
  -- Transaction Controller
    -- Module Controller (login)
    -- HTTP Cookie manager
    -- HTTP Request
    -- Module Controller (logout)
-- Results Tree

Tips :

• Command alias for jmeter
• Shortcuts for toggling elements Ctrl+t
• Creating script that can run accross environments (dev,qa,stg,prod)
• Loading Data from Project Path
  • with a subfolder for each environment