### Question:
InstanceIdConverter extends AbstractConverter<InstanceId> { @Override protected String convertToString(InstanceId value) { return value.getInstanceId(); }    }### Answer:
@Test public void convertToString() throws Exception { InstanceId id = new InstanceId("b6ad6165-daaf-41a1-8a3f-9aa81451c402"); assertEquals("b6ad6165-daaf-41a1-8a3f-9aa81451c402", this.mocker.getComponentUnderTest().convertToString(id)); }