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import it.inaf.ia2.gms.model.response.PaginatedData;
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import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class PaginatedDataTest {
@Test
public void testPagination() {
List<Integer> allItems = new ArrayList<>();
for (int i = 1; i <= 30; i++) {
allItems.add(i);
}
PaginatedData<Integer> paginatedData = new PaginatedData<>(allItems, 2, 10);
assertEquals(10, paginatedData.getItems().size());
assertEquals(11, (int) paginatedData.getItems().get(0));
assertEquals(20, (int) paginatedData.getItems().get(9));
assertEquals(30, paginatedData.getTotalItems());
assertEquals(3, paginatedData.getTotalPages());
assertFalse(paginatedData.isHasPreviousPages());
assertFalse(paginatedData.isHasFollowingPages());
assertEquals(10, paginatedData.getPageSize());
assertEquals(3, paginatedData.getLinks().size());
assertEquals(1, (int) paginatedData.getLinks().get(0));
assertEquals(2, (int) paginatedData.getLinks().get(1));
assertEquals(3, (int) paginatedData.getLinks().get(2));
}
@Test
public void testLotOfPages() {
List<Integer> allItems = new ArrayList<>();
for (int i = 1; i <= 200; i++) {
allItems.add(i);
}
PaginatedData<Integer> paginatedData = new PaginatedData<>(allItems, 8, 10);
assertEquals(10, paginatedData.getItems().size());
assertEquals(71, (int) paginatedData.getItems().get(0));
assertEquals(80, (int) paginatedData.getItems().get(9));
assertEquals(200, paginatedData.getTotalItems());
assertEquals(20, paginatedData.getTotalPages());
assertTrue(paginatedData.isHasPreviousPages());
assertTrue(paginatedData.isHasFollowingPages());
assertEquals(10, paginatedData.getPageSize());
assertEquals(5, paginatedData.getLinks().size());
assertEquals(6, (int) paginatedData.getLinks().get(0));
assertEquals(10, (int) paginatedData.getLinks().get(4));
}
}