@Test
    public void testDisallowedMixedTensorShortFormWithoutValues() {
        assertCreatePutFails(inputJson("{\"blocks\":{ \"a\": [] } }"),
                "mixed_tensor", "Expected 3 values, but got 0");
        assertCreatePutFails(inputJson("{\"blocks\":[ {\"address\":{\"x\":\"a\"}, \"values\": [] } ] }"),
                "mixed_tensor", "Expected 3 values, but got 0");
    }
Basic test of JSON streams to Vespa document instances.

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