@Test
void shouldLogResponseWithoutBody() throws IOException {

    final String correlationId = "f238536c-682a-11e5-9bdd-10ddb1ee7671";
    final HttpResponse response = create()
            .withBodyAsString("");
    final String format = unit.format(correlation(correlationId, ZERO), response);
    assertThat(format, not(containsString("body")));
}