JSDoc uses Jasmine as its testing framework. See the Jasmine documentation for details.

Clone the GitHub repository; change to its directory; and run the following commands:

npm install
node jsdoc.js -T

You can write tests for all of the following:

• JSDoc itself. See the test directory. Test specs are in test/specs, and fixtures used by the tests are in test/fixtures.
• Plugins. See the plugins/test directory.
• Packages. See the packages/**/test directories.