### Question:
NullPropertyHelper implements PropertyHelper { @Override public IndividualPropertyHelper withIndividual(Name<?> id) { return this.iph; } NullPropertyHelper(URI propertyId); @Override T firstValue(Class<? extends T> aClazz); @Override IndividualHelper firstIndividual(); @Override T firstIndividual(Class<? extends S> clazz); @Override IndividualPropertyHelper withLiteral(Object rawValue); @Override IndividualPropertyHelper withIndividual(Name<?> id); @Override IndividualPropertyHelper withIndividual(Name<?> id, String managerId); @Override IndividualPropertyHelper withIndividual(Name<?> id, String managerId, URI path); @Override IndividualPropertyHelper withIndividual(Name<?> id, String managerId, String path); @Override IndividualPropertyHelper withIndividual(URI id); @Override IndividualPropertyHelper withIndividual(String id); @Override IndividualPropertyHelper withIndividual(Term id); @Override String toString();  }### Answer:
@Test public void testWithIndividualURI() throws Exception { IndividualPropertyHelper result = sut.withIndividual(RDFS.CLASS.as(URI.class)); assertThat(result,instanceOf(IndividualPropertyHelperImpl.class)); }
@Test public void testWithIndividualString() throws Exception { IndividualPropertyHelper result = sut.withIndividual(RDFS.CLASS.qualifiedEntityName()); assertThat(result,instanceOf(IndividualPropertyHelperImpl.class)); }
@Test public void testWithIndividualTerm() throws Exception { IndividualPropertyHelper result = sut.withIndividual(RDFS.CLASS); assertThat(result,instanceOf(IndividualPropertyHelperImpl.class)); }
@Test public void testWithIndividual$local() throws Exception { IndividualPropertyHelper result = sut.withIndividual(name("resourceName")); assertThat(result,instanceOf(IndividualPropertyHelperImpl.class)); }
@Test public void testWithIndividual$managedId() throws Exception { IndividualPropertyHelper result = sut.withIndividual(name("resourceName"),"managerId"); assertThat(result,instanceOf(IndividualPropertyHelperImpl.class)); }
@Test public void testWithIndividual$managedId$relativeId() throws Exception { IndividualPropertyHelper result = sut.withIndividual(name("resourceName"),"managerId","relativePath/"); assertThat(result,instanceOf(IndividualPropertyHelperImpl.class)); }
@Test public void testWithIndividual$managedId$relativeId$URI() throws Exception { IndividualPropertyHelper result = sut.withIndividual(name("resourceName"),"managerId",URI.create("relativePath/")); assertThat(result,instanceOf(IndividualPropertyHelperImpl.class)); }