public String getLabel() {
        return label;
    }
@Test
    void requireThatConstructorsWork() {
        RangePartition part = new RangePartition("foo=10-19");
        assertEquals("foo=10-19", part.getLabel());
        part = new RangePartition("foo", 10, 19, false);
        assertEquals("foo=10-19", part.getLabel());
        part = new RangePartition("foo", 10, 19, true);
        assertEquals("foo=-19-10", part.getLabel());
    }