@Test
void convertSpeed_whenValueGetsSmaller_thenPrecisionIsMaintained() {

    double mmPerMinuteSpeed = 1.31211;
    double siSpeed = mmPerMinuteSpeed / (1000 * 60);
    assertThat(ValuesInSIUnits.convertSpeed(mmPerMinuteSpeed, LengthUnit.MILLIMETERS, TimeUnit.MINUTES)).isCloseTo(siSpeed, withinPercentage(TOLERANCE));
}