@Test
public void createInstanceFromValidJson() {

    final PolicyTag underTest = PolicyTag.fromJson(KNOWN_JSON);
    assertThat(underTest).isNotNull();
    assertThat((CharSequence) underTest.getEntityId()).isEqualTo(TestConstants.Policy.POLICY_ID);
    assertThat(underTest.getRevision()).isEqualTo(TestConstants.Policy.REVISION_NUMBER);
}