Running a single JUnit test in Eclipse

Question

If I have a test suite with multiple tests, when I try to run a single unit test, either from the context menu of the code editor, or from the JUnit view, it seems to insist

Answer 1

Don't use Strg+F11 but the hotkey Alt+Shift+X -> T.
Then Eclipse will execute the current open file as a JUnit test. The green play button will only run the last chosen Run Configuration.

For me, it works well with Alt+Shift+X -> T.