Supplier<Object> supplier = () -> longString;

        monitorTarget.append(buf, "longKey", supplier);
        assertTrue(buf.toString().startsWith("\"longKey\":\""));
        assertTrue(buf.toString().contains("aaaaaaaaaa"));
        assertEquals(10000 + "\"longKey\":\"\"".length(), buf.toString().length());
    }

    // Test append with Unicode characters
    public void test_append_unicodeCharacters() {

     * fit comfortably within a single ethernet packet (1500 bytes) even with framing overhead.
     *
     * For tests this must be big enough to realize real compression on test messages like
     * 'aaaaaaaaaa...'. Our tests check if compression was applied just by looking at the size if
     * the inbound buffer.
     */
    const val DEFAULT_MINIMUM_DEFLATE_SIZE = 1024L
  }