### Question:
JPAEdmMappingModelService implements JPAEdmMappingModelAccess { @Override public String mapJPAEntitySet(final String jpaEntityTypeName) { JPAEntityTypeMapType jpaEntityTypeMap = searchJPAEntityTypeMapType(jpaEntityTypeName); if (jpaEntityTypeMap != null) { return jpaEntityTypeMap.getEDMEntitySet(); } else { return null; } } JPAEdmMappingModelService(final ODataJPAContext ctx); @Override void loadMappingModel(); @Override boolean isMappingModelExists(); @Override JPAEdmMappingModel getJPAEdmMappingModel(); @Override String mapJPAPersistenceUnit(final String persistenceUnitName); @Override String mapJPAEntityType(final String jpaEntityTypeName); @Override String mapJPAEntitySet(final String jpaEntityTypeName); @Override String mapJPAAttribute(final String jpaEntityTypeName, final String jpaAttributeName); @Override String mapJPARelationship(final String jpaEntityTypeName, final String jpaRelationshipName); @Override String mapJPAEmbeddableType(final String jpaEmbeddableTypeName); @Override String mapJPAEmbeddableTypeAttribute(final String jpaEmbeddableTypeName, final String jpaAttributeName); @Override boolean checkExclusionOfJPAEntityType(final String jpaEntityTypeName); @Override boolean checkExclusionOfJPAAttributeType(final String jpaEntityTypeName, final String jpaAttributeName); @Override boolean checkExclusionOfJPAEmbeddableType(final String jpaEmbeddableTypeName); @Override boolean checkExclusionOfJPAEmbeddableAttributeType(final String jpaEmbeddableTypeName,
      final String jpaAttributeName);  }### Answer:
@Test public void testMapJPAEntitySet() { assertEquals(ENTITY_SET_NAME_EDM, objJPAEdmMappingModelServiceTest.mapJPAEntitySet(ENTITY_TYPE_NAME_JPA)); }
@Test public void testMapJPAEntitySetNegative() { assertNull(objJPAEdmMappingModelServiceTest.mapJPAEntitySet(ENTITY_TYPE_NAME_JPA_WRONG)); }