Issue

During a non-local UI test using the UnitTesting module, the following errors might arise because of missing dependencies or libraries.

"error": "Exception: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.RuntimeException: Playwright connection closed\n\tat QIMApp.UT_Run_PlayWright (JavaAction : 'RunPlayWright')

Error {\n message='\n╔═════╗\n║ Host system is missing dependencies to run browsers.

Environment

UnitTesting (all versions)

Cause

The UnitTesting module does not support third-party UI testing tools, such as Playwright, as seen in the example error.

The UnitTesting module is designed to test microflows within the application and validate their outcomes. It is not intended for use with external tools for UI testing on the cloud environment.

Solution/Workaround

Mendix offers a partnership solution with Menditec for automated UI testing.

Additional information

• Unit Testing | Mendix Documentation
• Mendix Marketplace - UnitTesting
• UI testing with MTA | Menditect Test Automation
• Mendix partners with Menditect to bring automated testing throughout the SDLC | Mendix