continue
			}
			v = "GOCOVERDIR=" + gcd
			found = true
		}
		rv = append(rv, v)
	}
	if !found && setGoCoverDir {
		rv = append(rv, "GOCOVERDIR="+gcd)
	}
	return rv
}

func runHarness(t *testing.T, harnessPath string, tp string, setGoCoverDir bool, rdir, edir string) (string, error) {
	t.Logf("running: %s -tp %s -o %s with rdir=%s and GOCOVERDIR=%v", harnessPath, tp, edir, rdir, setGoCoverDir)