Update tests in r.core to use JUnit 5 jupiter

(@Test annotation is not inherited in contrast to JUnit 4)

Follow-up-to: 98bbe679090675c4051b64f2bdf12eb114934dff
Change-Id: I449a9d09d8e257913d0ed442869971eb94a997c2
3 files changed
tree: a1860c905acc61e8e3f7b3a09d9fdf72b4b1e1fc
  1. .project
  2. .settings/
  3. LICENSE
  4. NOTICE.md
  5. pom.xml
  6. r/
  7. redocs/
  8. rhelp/
  9. rtm/