/*
* Copyright 2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.hateoas;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import java.util.Collections;
import org.junit.Before;
import org.junit.Test;
import org.springframework.hateoas.PagedResources.PageMetadata;
/**
* Unit tests for {@link PagedResources}.
*
* @author Oliver Gierke
*/
public class PagedResourcesUnitTest {
static final PageMetadata metadata = new PagedResources.PageMetadata(10, 1, 200);
PagedResources<Object> resources;
@Before
public void setUp() {
resources = new PagedResources<Object>(Collections.emptyList(), metadata);
}
@Test
public void discoversNextLink() {
resources.add(new Link("foo", Link.REL_NEXT));
assertThat(resources.getNextLink(), is(notNullValue()));
}
@Test
public void discoversPreviousLink() {
resources.add(new Link("custom", Link.REL_PREVIOUS));
assertThat(resources.getPreviousLink(), is(notNullValue()));
}
/**
* @see #89
*/
@Test(expected = IllegalArgumentException.class)
public void preventsNegativePageSize() {
new PageMetadata(-1, 0, 0);
}
/**
* @see #89
*/
@Test(expected = IllegalArgumentException.class)
public void preventsNegativePageNumber() {
new PageMetadata(0, -1, 0);
}
/**
* @see #89
*/
@Test(expected = IllegalArgumentException.class)
public void preventsNegativeTotalElements() {
new PageMetadata(0, 0, -1);
}
/**
* @see #89
*/
@Test(expected = IllegalArgumentException.class)
public void preventsNegativeTotalPages() {
new PageMetadata(0, 0, 0, -1);
}
/**
* @see #89
*/
@Test
public void allowsOneIndexedPages() {
new PageMetadata(10, 1, 0);
}
}