1 /** 2 * Copyright (c) 2008-2011, 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 */ 16 17 package org.yaml.snakeyaml.nodes; 18 19 import junit.framework.TestCase; 20 21 public class MappingNodeTest extends TestCase { 22 23 public void testNullValue() { 24 try { 25 new MappingNode(new Tag("!tag"), true, null, null, null, false); 26 fail("Value is required."); 27 } catch (Exception e) { 28 assertEquals("value in a Node is required.", e.getMessage()); 29 } 30 } 31 }