Unit Test Using Sql Developer - Error Validation Boolean function failed: Missing in or out parameter at index:: 1

Hi,

I am using Sql developer version 19.1.0.094.

Inside Unit test module, when using Boolean function for validation inside a test implementation, I am getting the below error.

Validation Boolean function failed: Missing in or out parameter at index:: 1.

The same test validation if I performing using User plsql Code option its working fine.

Kindly help around this.

Thanks

Vasanth.M