try to scan for @Test annotated test classes. doesn't work tho.. maybe
in next version of bndtools?
diff --git a/NatTable/bnd.bnd b/NatTable/bnd.bnd
index f550aff..472b24b 100644
--- a/NatTable/bnd.bnd
+++ b/NatTable/bnd.bnd
@@ -1,3 +1,5 @@
+Test-Cases: ${classes;ANNOTATION;org.junit.Test}
+
 -buildpath: org.eclipse.xtext.xbase.lib,\
 	com.google.inject,\
 	org.eclipse.xtext.xbase.lib.source,\
@@ -20,6 +22,7 @@
 	org.eclipse.core.commands,\
 	org.eclipse.core.commands.source,\
 	com.google.guava,\
-	com.springsource.org.junit
+	com.springsource.org.junit,\
+	osgi.core
 
--sub: *.bnd
\ No newline at end of file
+-sub: *.bnd