I'm trying to run a simple JUnit test in Eclipse, but the preview pane with the very noticeable green/red bar will not show, instead it only shows the normal console window.
I checked that I run JUnit 4 in the run configuration.
import static org.junit.Assert.*; import org.junit.Test; public class TestF { @Test public void test() { AClass a = new AClass(); int t = a.Double(2); assertEquals(4, t); } }