Pagination with REST - testing Discoverability - next, previous

PaginationDiscoverabilityTest.java

@Test
public void whenFirstPageOfResourcesAreRetrieved_thenSecondPageIsNext(){
   Response response = givenAuth().get( paths.getFooURL()+"?page=0&size=10" );

   String uriToNextPage = extractURIByRel( response.getHeader( LINK ), REL_NEXT );
   assertEquals( paths.getFooURL()+"?page=1&size=10", uriToNextPage );
}
@Test
public void whenFirstPageOfResourcesAreRetrieved_thenNoPreviousPage(){
   Response response = givenAuth().get( paths.getFooURL()+"?page=0&size=10" );
   	
   String uriToPrevPage = extractURIByRel( response.getHeader( LINK ), REL_PREV );
   assertNull( uriToPrevPage );
} 
@Test
public void whenSecondPageOfResourcesAreRetrieved_thenFirstPageIsPrevious(){
   Response response = givenAuth().get( paths.getFooURL()+"?page=1&size=10" );
   
   String uriToPrevPage = extractURIByRel( response.getHeader( LINK ), REL_PREV );
   assertEquals( paths.getFooURL()+"?page=0&size=10", uriToPrevPage );
}
@Test
public void whenLastPageOfResourcesIsRetrieved_thenNoNextPageIsDiscoverable(){
   Response first = givenAuth().get( paths.getFooURL()+"?page=0&size=10" );
   String uriToLastPage = extractURIByRel( first.getHeader( LINK ), REL_LAST );
   
   Response response = givenAuth().get( uriToLastPage );
   
   String uriToNextPage = extractURIByRel( response.getHeader( LINK ), REL_NEXT );
   assertNull( uriToNextPage );
}

This gist is used in:
http://www.baeldung.com/2012/01/18/rest-pagination-in-spring/