@Test
    public void tensor_add_update_on_sparse_tensor_with_single_dimension_short_form() {
        assertTensorAddUpdate("{{x:a}:2.0, {x:c}: 3.0}", "sparse_single_dimension_tensor",
                              """
                              {
                                "cells": {
                                  "a": 2.0,
                                  "c": 3.0
                                }
                              }""");
    }
Tests parsing of various tensor values set at the root, i.e. no 'cells', 'blocks' or 'values'
document/src/test/java/com/yahoo/document/json/JsonReaderTestCase.java