@Test
public void testApply() throws Exception {

    ElevationToSolzen rule = new ElevationToSolzen();
    Array sourceArray = Array.factory(new float[]{12.0f, 27.123f});
    Array targetArray = rule.apply(sourceArray, new ColumnBuilder()
            .type(DataType.FLOAT)
            .build());
    assertEquals(78.0f, targetArray.getFloat(0), 0.0);
    assertEquals(62.877f, targetArray.getFloat(1), 0.0);
}