To make sure your content classes are working correctly, you can provide some sample text and have the system apply your content class properties to it. You can then verify the extracted values to make sure they are what you expect.
Click the Content Classes window.
Click the content class that you want to test.
Click the Test Content Class window.
Paste your sample text into the text box.
Optionally, select XML, JSON, or TEXT to change how the text you entered is displayed in the box.
Click Test Content Class.
Related CLI commands - testContentProperties
Related REST API methods - POST contentclasses test