### Question:
LongParser implements ConfigurationParser { @Override public Set<Class> getResponsibleClasses() { Set<Class> responsibleClasses = new HashSet<>(); responsibleClasses.add(Long.class); responsibleClasses.add(long.class); return responsibleClasses; }  @Override Set<Class> getResponsibleClasses(); @Override Long parseValue(String value, Class targetType);  }### Answer:
@Test public void getResponsibleClasses() { Set<Class> responsibleClasses = parser.getResponsibleClasses(); assertTrue(responsibleClasses.contains(Long.class)); assertTrue(responsibleClasses.contains(long.class)); }