### Question:
PhenotypeTerm implements Comparable<PhenotypeTerm> { @Override public String toString() { return "PhenotypeTerm{" + "id=" + id + ", label=" + label + ", present=" + isPresent() +'}'; } private  PhenotypeTerm(String id, String label, Status status); @JsonProperty String getId(); @JsonProperty String getLabel(); @JsonIgnore boolean isPresent(); @JsonIgnore boolean notPresent(); @Override boolean equals(Object o); @Override int hashCode(); @Override int compareTo(PhenotypeTerm o); @Override String toString(); @JsonCreator static PhenotypeTerm of(String id, String label); static PhenotypeTerm notOf(String id, String label);  }### Answer:
@Test public void testToString() { assertThat(instance.toString().isEmpty(), is(false)); }