Using Badboy and JMeter for Web Performance Testing: A Step-by-Step Guide
This article introduces Badboy as a free web‑script recorder, explains how to add assertions and parameterize variables, shows how to export the recorded script to JMeter, and outlines the subsequent steps to run a performance test with JMeter.
During testing, a free tool Badboy can be used as an alternative to the commercial LoadRunner for recording web scripts; it is simple to start recording and powerful enough to capture web interactions.
Badboy, developed in C++, provides screen recording, playback, and rich graphical result analysis, and it can export recorded scripts to JMeter format for further performance testing.
To add an assertion for the input "jmeter", select Tools → Add Assertion for Selection and confirm the checkpoint as shown in the screenshot.
Parameterization is performed by right‑clicking the blank area, choosing Add Variable , creating a variable named search with values Selenium, jenkins, and jmeter, then editing the step properties to replace the static value with ${search} .
After parameterization, export the script via File → Export to JMeter , saving a search.jmx file.
Open the exported .jmx file in JMeter, add listeners, result tree, and any additional processing such as further parameterization or correlation, then execute the test to simulate many virtual users and gather performance metrics.
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