@Test
    void testPartialCopy() {
        var abcd = ofLabels("a", "b", "c", "d");
        int[] o_1_3_2 = {1,3,2};
        equal(ofLabels("b", "d", "c"), abcd.partialCopy(o_1_3_2));
    }
Test for tensor address.

@author baldersheim
vespajlib/src/test/java/com/yahoo/tensor/TensorAddressTestCase.java