har2grinder

Creates test files for The Grinder based on HTTP Archive (HAR) files generated by Chrome DevTools.

Overview

The har2grinder script creates a test file, which can be run by The Grinder load testing framework.

The test files are generated from HTTP Archive (HAR) files, which can be generated using Chrome DevTools.

Recording a test using Chrome DevTools

1. Fire up Chrome and open the DevTools.

2. Open the Network tab of the DevTools.

3. Clear the Network history ("no entry" icon).

4. Choose the option to Preserve log upon navigation.

5. Choose the option to Disable cache.

6. Navigate around your site.

7. After you navigate to the pages you want to test, right-click on the network history panel and choose "Copy > Copy All as HAR". Save the clipboard to a .har file.

For more information check out my blog post.

Converting a HAR file to a Grinder test

To convert the recorded navigation to a Grinder test, run the har2grinder script:

python har2grinder.py my_website_test.har > my_website_grinder_test.py

Settings

You can specify options by creating a file named settings.py in the directory which holds the har2grinder script.

Currently supported options:

• SLEEP_BETWEEN_PAGES - the time which Grinder will wait after loading the first page before proceeding to the next [milliseconds].
• EXCLUDED_DOMAINS - a tuple, which list domains for files hosted by external CDNs, which are not part of your test.

Known limitations

• no support for websockets