@Test
    public void testUpdateArray() throws IOException {
        DocumentUpdate doc = parseUpdate("""
                                         {
                                           "update": "id:unittest:testarray::whee",
                                           "fields": {
                                             "actualarray": {
                                               "add": [
                                                 "person",
                                                 "another person"
                                               ]
                                             }
                                           }
                                         }
                                         """);
        checkSimpleArrayAdd(doc);
    }
Basic test of JSON streams to Vespa document instances.

@author Steinar Knutsen
@author bratseth
document/src/test/java/com/yahoo/document/json/JsonReaderTestCase.java