@Test
public void testPostProcessWithPaging() {
when(page.getPageRequest()).thenReturn(pageRequest);
when(page.getMaxRecords()).thenReturn(15);
when(pageRequest.isPaging()).thenReturn(true);
when(pageRequest.getPage()).thenReturn(2);
when(pageRequest.getPerPage()).thenReturn(5);
// We're going to take the quick path through buildBaseUrl.
when(config.containsKey(eq(ConfigProperties.PREFIX_APIURL))).thenReturn(false);
when(request.getRequestURL()).thenReturn(new StringBuffer("https://example.com/candlepin"));
when(request.getQueryString()).thenReturn("order=asc&page=1&per_page=10");
MultivaluedMap<String, Object> map = new MultivaluedMapImpl<String, Object>();
when(response.getMetadata()).thenReturn(map);
ResteasyProviderFactory.pushContext(Page.class, page);
ResteasyProviderFactory.pushContext(HttpServletRequest.class, request);
interceptor.postProcess(response);
String header = (String) map.getFirst(LinkHeaderPostInterceptor.LINK_HEADER);
// It would be a bit much to parse the entire header, so let's just make
// sure that we have first, last, next, and prev links.
assertTrue(header.contains("rel=\"first\""));
assertTrue(header.contains("rel=\"last\""));
assertTrue(header.contains("rel=\"next\""));
assertTrue(header.contains("rel=\"prev\""));
}
@Test
public void testGetLastPageWhenEvenlyDivisible() {
Page p = new Page();
p.setMaxRecords(10);
PageRequest pr = new PageRequest();
p.setPageRequest(pr);
pr.setPerPage(10);
pr.setPage(1);
assertEquals(Integer.valueOf(1), interceptor.getLastPage(p));
}
@Test
public void testGetLastPageWhenMaxRecordsLessThanLimit() {
Page p = new Page();
p.setMaxRecords(8);
PageRequest pr = new PageRequest();
p.setPageRequest(pr);
pr.setPerPage(10);
pr.setPage(1);
assertEquals(Integer.valueOf(1), interceptor.getLastPage(p));
}
@Test
public void testGetNextPageWhenNoNextAvailable() {
Page p = new Page();
p.setMaxRecords(55);
PageRequest pr = new PageRequest();
p.setPageRequest(pr);
pr.setPerPage(10);
pr.setPage(6);
assertNull(interceptor.getNextPage(p));
}
@Test
public void testGetNextPage() {
Page p = new Page();
p.setMaxRecords(55);
PageRequest pr = new PageRequest();
p.setPageRequest(pr);
pr.setPerPage(10);
pr.setPage(3);
assertEquals(Integer.valueOf(4), interceptor.getNextPage(p));
}
@Test
public void testGetPrevPageWhenOnFirstPage() {
Page p = new Page();
p.setMaxRecords(55);
PageRequest pr = new PageRequest();
p.setPageRequest(pr);
pr.setPerPage(10);
pr.setPage(1);
assertNull(interceptor.getPrevPage(p));
}
@Test
public void testPagesWithOutOfBoundsInitialPage() {
Page p = new Page();
p.setMaxRecords(8);
PageRequest pr = new PageRequest();
p.setPageRequest(pr);
pr.setPerPage(10);
pr.setPage(2);
assertNull(interceptor.getPrevPage(p));
assertNull(interceptor.getNextPage(p));
assertEquals(Integer.valueOf(1), interceptor.getLastPage(p));
}
@Test
public void testPostProcessWithNonPagingPresentation() {
when(page.getPageRequest()).thenReturn(pageRequest);
when(pageRequest.isPaging()).thenReturn(false);
ResteasyProviderFactory.pushContext(Page.class, page);
interceptor.postProcess(response);
verify(page, times(2)).getPageRequest();
verify(pageRequest).isPaging();
}