.x == 0",                 "   testSuccess()",                 "endpackage"         );     }      @Test     public void tupleInTuple() {         testAssertOkLines(true,                 "package test",                 " native testSuccess()",                 " tuple vec(real x, real y)",                 " tuple line(vec start, vec end_)",                 " init",                 "  let l = line(vec(0,0), vec(0,0))",                 "  if 