### Question:
ConstantPayloadGenerator implements PayloadGenerator, Configurable { @Override public void setOffsets(Map<String, Object> offsets) { }  @Override void configure(Map<String, ?> props); @Override boolean update(Request request, Response response); @Override String getRequestBody(); @Override Map<String, String> getRequestParameters(); @Override Map<String, String> getRequestHeaders(); @Override Map<String, Object> getOffsets(); @Override void setOffsets(Map<String, Object> offsets);  }### Answer:
@Test public void testSetOffsets() { generator.configure(CONFIG_PROPS); generator.setOffsets(null); assertThat(generator.getOffsets(), notNullValue()); }