func TestFormattingOfTemperaturesOutOfRangeHigh(t *testing.T) {
    th := Thermostat{Measured: "100", Saving: "110", Goal: "111", Comfort: "56"}
    assert.Equal(t, "28", th.FmtMeasuredTemperature())
    assert.Equal(t, "28", th.FmtSavingTemperature())
    assert.Equal(t, "28", th.FmtGoalTemperature())