@Test
    public void testExpand8() throws ParseException {
        Tensor input = evaluate("tensor(d0[3],d1[1]):[1,2,3]");
        Tensor shape = evaluate("tensor(d0[2]):[3,4]");
        assertEval("expand", input, shape, evaluate("tensor(d0[3],d1[4]):[1,1,1,1,2,2,2,2,3,3,3,3]"));
        shape = evaluate("tensor(d0[3]):[2,1,4]");
        assertEval("expand", input, shape, evaluate("tensor(d0[2],d1[3],d2[4]):[1,1,1,1,2,2,2,2,3,3,3,3,1,1,1,1,2,2,2,2,3,3,3,3]"));
    }
Unit tests for ONNX operators. The number on the test reflects the minimum
opset number for the operations tested.

@author lesters
model-integration/src/test/java/ai/vespa/rankingexpression/importer/onnx/OnnxOperationsTestCase.java