Designer JUnit view would have the test report, same as how typical junit result is formed for java based tests. .
I believe you need to have UnitTestFramework subscription for it to be available via Installer…did you check in that route?
Also:
Developer Installation Requirements Unit Test Framework Eclipse plug-in (Designer > Services > Unit Test Framework)
WmServiceMock package for Integration Server (Integration Server or Microservices Runtime Packages > Unit Test Framework) Unit Test Framework Software AG Designer plug-in can work with both Local and Remote Integration Server.
Continuous Integration Installation Requirements WmServiceMock package for Integration Server (Integration Server or Microservices Runtime Packages > Unit Test Framework) Unit Test Framework libraries (Infrastructure > Libraries > Unit Test Framework Libraries)
HTH,
RMG