}
	if !present {
		t.Errorf("Expected present")
	}

	v = ev.Get()
	if v != 789*time.Second {
		t.Errorf("Expected 789 seconds, got %v", v)
	}
}

func TestDesc(t *testing.T) {
	reset()

	_ = RegisterDurationVar(testVar+"5", 123*time.Second, "A duration")
	_ = RegisterStringVar(testVar+"1", "123", "A string")
	_ = RegisterIntVar(testVar+"2", 456, "An int")