/*
* Copyright 2014-2017 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.data.rest.webmvc.json.patch;
import static org.junit.Assert.*;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
public class MoveOperationTests {
@Test
public void moveBooleanPropertyValue() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", true));
todos.add(new Todo(2L, "B", false));
todos.add(new Todo(3L, "C", false));
try {
MoveOperation move = new MoveOperation("/1/complete", "/0/complete");
move.perform(todos, Todo.class);
fail();
} catch (PatchException e) {
assertEquals("Path '/0/complete' is not nullable.", e.getMessage());
}
assertFalse(todos.get(1).isComplete());
}
@Test
public void moveStringPropertyValue() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", true));
todos.add(new Todo(2L, "B", false));
todos.add(new Todo(3L, "C", false));
MoveOperation move = new MoveOperation("/1/description", "/0/description");
move.perform(todos, Todo.class);
assertEquals("A", todos.get(1).getDescription());
}
@Test
public void moveBooleanPropertyValueIntoStringProperty() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", true));
todos.add(new Todo(2L, "B", false));
todos.add(new Todo(3L, "C", false));
try {
MoveOperation move = new MoveOperation("/1/description", "/0/complete");
move.perform(todos, Todo.class);
fail();
} catch (PatchException e) {
assertEquals("Path '/0/complete' is not nullable.", e.getMessage());
}
assertEquals("B", todos.get(1).getDescription());
}
//
// NOTE: Moving an item about in a list probably has zero effect, as the order of the list is
// usually determined by the DB query that produced the list. Moving things around in a
// java.util.List and then saving those items really means nothing to the DB, as the
// properties that determined the original order are still the same and will result in
// the same order when the objects are queries again.
//
@Test
public void moveListElementToBeginningOfList() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", false));
todos.add(new Todo(2L, "B", true));
todos.add(new Todo(3L, "C", false));
MoveOperation move = new MoveOperation("/0", "/1");
move.perform(todos, Todo.class);
assertEquals(3, todos.size());
assertEquals(2L, todos.get(0).getId().longValue());
assertEquals("B", todos.get(0).getDescription());
assertTrue(todos.get(0).isComplete());
}
@Test
public void moveListElementToMiddleOfList() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", true));
todos.add(new Todo(2L, "B", false));
todos.add(new Todo(3L, "C", false));
MoveOperation move = new MoveOperation("/2", "/0");
move.perform(todos, Todo.class);
assertEquals(3, todos.size());
assertEquals(1L, todos.get(2).getId().longValue());
assertEquals("A", todos.get(2).getDescription());
assertTrue(todos.get(2).isComplete());
}
@Test
public void moveListElementToEndOfList_usingIndex() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", true));
todos.add(new Todo(2L, "B", false));
todos.add(new Todo(3L, "C", false));
MoveOperation move = new MoveOperation("/2", "/0");
move.perform(todos, Todo.class);
assertEquals(3, todos.size());
assertEquals(1L, todos.get(2).getId().longValue());
assertEquals("A", todos.get(2).getDescription());
assertTrue(todos.get(2).isComplete());
}
@Test
public void moveListElementToBeginningOfList_usingDash() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", true));
todos.add(new Todo(3L, "C", false));
todos.add(new Todo(4L, "E", false));
todos.add(new Todo(2L, "G", false));
List<Todo> expected = new ArrayList<Todo>();
expected.add(new Todo(1L, "A", true));
expected.add(new Todo(2L, "G", false));
expected.add(new Todo(3L, "C", false));
expected.add(new Todo(4L, "E", false));
MoveOperation move = new MoveOperation("/1", "/-");
move.perform(todos, Todo.class);
assertEquals(expected, todos);
}
@Test
public void moveListElementToEndOfList_usingDash() throws Exception {
List<Todo> todos = new ArrayList<Todo>();
todos.add(new Todo(1L, "A", true));
todos.add(new Todo(2L, "G", false));
todos.add(new Todo(3L, "C", false));
todos.add(new Todo(4L, "E", false));
List<Todo> expected = new ArrayList<Todo>();
expected.add(new Todo(1L, "A", true));
expected.add(new Todo(3L, "C", false));
expected.add(new Todo(4L, "E", false));
expected.add(new Todo(2L, "G", false));
MoveOperation move = new MoveOperation("/-", "/1");
move.perform(todos, Todo.class);
assertEquals(expected, todos);
}
}