public long getTimeUsedMs() {
    return _brokerResponse.has(TIME_USED_MS) ? _brokerResponse.get(TIME_USED_MS).asLong() : -1L;
  }
@Test
  public void testGetTimeUsedMs() {
    // Run the test
    final long result = _executionStatsUnderTest.getTimeUsedMs();

    // Verify the results
    assertEquals(10L, result);
  }