1/** 2 * Copyright (c) 2008, http://www.snakeyaml.org 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package org.yaml.snakeyaml.representer; 17 18import java.util.Iterator; 19 20import junit.framework.TestCase; 21 22import org.yaml.snakeyaml.Yaml; 23 24/** 25 * Test @see <a href="http://code.google.com/p/snakeyaml/issues/detail?id=69">issue 69</a> 26 */ 27public class RepresentIterableTest extends TestCase { 28 29 public void testIterable() { 30 Yaml yaml = new Yaml(); 31 try { 32 yaml.dump(new CounterFactory()); 33 fail("Iterable should not be treated as sequence by default."); 34 } catch (Exception e) { 35 assertEquals( 36 "No JavaBean properties found in org.yaml.snakeyaml.representer.RepresentIterableTest$CounterFactory", 37 e.getMessage()); 38 } 39 } 40 41 public void testIterator() { 42 Yaml yaml = new Yaml(); 43 String output = yaml.dump(new Counter(7)); 44 assertEquals("[0, 1, 2, 3, 4, 5, 6]\n", output); 45 } 46 47 private class CounterFactory implements Iterable<Integer> { 48 public Iterator<Integer> iterator() { 49 return new Counter(10); 50 } 51 } 52 53 private class Counter implements Iterator<Integer> { 54 private int max = 0; 55 private int counter = 0; 56 57 public Counter(int max) { 58 this.max = max; 59 } 60 61 public boolean hasNext() { 62 return counter < max; 63 } 64 65 public Integer next() { 66 return counter++; 67 } 68 69 public void remove() { 70 throw new UnsupportedOperationException(); 71 } 72 } 73} 74