@Test
    public void can_read_legacy_chunked_base64_raw_field_encoding() throws IOException {
        String expected = "this is a string with an impressive length. it's long enough to reach the end of the line, wow!";
        String base64withDelims = "dGhpcyBpcyBhIHN0cmluZyB3aXRoIGFuIGltcHJlc3NpdmUgbGVuZ3RoLiBpdCdzIGxvbmcgZW5v\\r\\n" +
                "dWdoIHRvIHJlYWNoIHRoZSBlbmQgb2YgdGhlIGxpbmUsIHdvdyE=\\r\\n";
        assertEquals(expected, fieldStringFromBase64RawContent(base64withDelims));
    }
Basic test of JSON streams to Vespa document instances.

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