Performance_Testing on Restful-booker

Testing Site - https://restful-booker.herokuapp.com

Introduction

This document details a performance test conducted on https://restful-booker.herokuapp.com using Apache JMeter. The test simulates 3,000 concurrent users with a 10-second ramp-up period and one iteration, covering various API functionalities. We'll explore the core setup and introduce some enhancements to the standard approach.

Prerequisites

• As of JMeter 5.6.3, Java 8+ and above are supported.
• we suggest multicore cpus with 4 or more cores.
• Memory 16GB RAM is a good value.

Installations

Step 1: Check if Java is Installed

Open your terminal or command prompt.Type the following command and press Enter:

java --version

If Java is installed, you'll see a message displaying the Java version.

java 22.0.1 2024-04-16
Java(TM) SE Runtime Environment (build 22.0.1+8-16)
Java HotSpot(TM) 64-Bit Server VM (build 22.0.1+8-16, mixed mode, sharing)

Step 2: Install Java JDK (if not installed)

If you don't see a Java version, you'll need to install it:

• Download Java JDK: Go to the official Oracle website and download the latest JDK version suitable for your operating system (Windows, macOS, or Linux).
• Install Java JDK: Follow the on-screen instructions to install the JDK. This usually involves running an installer file and accepting the license agreement.

Step 3: Set Up the Environment Variables (Windows)

To ensure your computer can find the Java installation, you'll need to set up environment variables:

• Open System Properties: Right-click on "This PC" and select "Properties."
• Go to Advanced System Settings: Click on "Advanced system settings."
• Click on Environment Variables: Click on the "Environment Variables" button.
• Edit the System Variables: Under "System variables," find the "Path" variable and click "Edit." Add the path to your Java installation's bin directory. For example, if you installed Java in C:\Program Files\Java\jdk-21\bin, add this to the Path variable. Create a New System Variable (Optional): Click on "New" under "System variables." Set the Variable name to "JAVA_HOME" and the Variable value to the path of your Java installation directory (e.g., C:\Program Files\Java\jdk-21).

Step 4: Verify the Installation

Open a new terminal or command prompt and type java -version again. You should now see the Java version. Now you're ready to use JMeter!

Java

  https://www.oracle.com/java/technologies/downloads/

JMeter

https://jmeter.apache.org/download_jmeter.cgi

Test Components:

• Thread Group: This component defines the virtual users (VUs) performing the test. We'll configure 3000 VUs with a ramp-up period of 10 seconds.

• HTTP Header Manager: This element adds necessary headers to each request.

  • Content-Type: application/json
  • Accept: application/json

• HTTP Request Samplers: These represent the actual API calls. Here's a breakdown for each functionality:

  • Auth :

    This depends on the API's authentication mechanism. Implement the appropriate sampler based on the method (e.g., Basic Auth, OAuth).

  • Create Booking:

    This POST request sends booking details using user variables or CSV data. Capture response time and relevant data points (e.g., booking ID).

  • Get Booking:

    This GET request retrieves a booking by ID obtained in the Create Booking step. Consider using a Regular Expression Extractor to capture the booking ID from the previous response.

  • Update Booking:

    This PUT request updates an existing booking (use the captured ID) with modified data.

  • Partial Update Booking:

    This PATCH request updates specific fields of a booking. Explore the API documentation for details.

  • Delete Booking:

    This DELETE request removes a booking (use the captured ID).

  • Ping:

    It include a GET request to a known-good endpoint (e.g., /ping) to measure overall server responsiveness.

  • Response Assertions:

    Add assertions to verify expected response codes (e.g., 200 for success) and content (e.g., presence of specific data in the response body).

  • Listeners:

    Include listeners to capture and analyze test results:

  • View Results Tree:

    Provides a detailed view of individual requests and responses.

  • Aggregate Report:

    Generates a high-level report summarizing key metrics like average response time, throughput, and error rate.

Test Plan

• Testplan > Add > Threads (Users) > Thread Group (this might vary dependent on the jMeter version you are using)

• Testplan => ADD => Thread(Users) => Thread Group

• Then, Thread Group => Add => Sampler => HTTP Request(example : Auth) renaming the name

• Then, select Auth => Config Element => HTTP Header Manager

• Then, select Auth => Add => Listner => View Result Tree

• Then, select Auth => Add => Listner => View Summary Report

• Then, select Auth => Add => Listner => Aggregate User

• Name: Threads (Users)

• Number of Threads (users): 1 to 3000

• Ramp-Up Period (in seconds): 10

• Loop Count: 1

Test execution (from the Terminal)

• Save your jmx file in bin folder
• JMeter should be initialized in non-GUI mode.
• Make a report folder in the bin folder.
• Run Command in jmeter\bin folder
• Assertion and listner should be disabled.

Command

Jtl file generate command

jmeter -n -t performance_t3000.jmx -l report\performance_t3000.jtl

Report Generate command

jmeter -g report\performance_t3000.jtl -o report\performance_t3000.html

ScreenShot

Total Test Plan

Create Booking sample

Summary Report

Total Transaction Per Second

Response Time Percentiles