@Test
public void testSensorCoefficientManagerWithValidURL() throws IOException {

    // when inserting a valid url, we shall retrieve a coefficient file
    SensorCoefficientManager mgr = new SensorCoefficientManager(auxdataDir.toUri().toURL());
    assertNotNull(mgr.getCoefficientFile("MERIS", "radiance_2", AEROSOL_TYPE.DESERT));
}