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    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;
    18
    19  import java.io.StringReader;
    20
    21  import junit.framework.TestCase;
    22
    23  import org.yaml.snakeyaml.nodes.MappingNode;
    24  import org.yaml.snakeyaml.nodes.Node;
    25  import org.yaml.snakeyaml.nodes.NodeId;
    26  import org.yaml.snakeyaml.nodes.ScalarNode;
    27
    28  public class YamlComposeTest extends TestCase {
    29
    30      public void testComposeManyDocuments() {
    31          try {
    32              Yaml yaml = new Yaml();
    33              yaml.compose(new StringReader("abc: 56\n---\n123\n---\n456"));
    34              fail("YAML contans more then one document.");
    35          } catch (Exception e) {
    36              assertEquals("expected a single document in the stream; but found another document",
    37                      e.getMessage());
    38          }
    39      }
    40
    41      public void testComposeFromReader() {
    42          Yaml yaml = new Yaml();
    43          MappingNode node = (MappingNode) yaml.compose(new StringReader("abc: 56"));
    44          ScalarNode node1 = (ScalarNode) node.getValue().get(0).getKeyNode();
    45          assertEquals("abc", node1.getValue());
    46          ScalarNode node2 = (ScalarNode) node.getValue().get(0).getValueNode();
    47          assertEquals("56", node2.getValue());
    48      }
    49
    50      public void testComposeAllFromReader() {
    51          Yaml yaml = new Yaml();
    52          boolean first = true;
    53          for (Node node : yaml.composeAll(new StringReader("abc: 56\n---\n123\n---\n456"))) {
    54              if (first) {
    55                  assertEquals(NodeId.mapping, node.getNodeId());
    56              } else {
    57                  assertEquals(NodeId.scalar, node.getNodeId());
    58              }
    59              first = false;
    60          }
    61      }
    62
    63      public void testComposeAllOneDocument() {
    64          Yaml yaml = new Yaml();
    65          for (Node node : yaml.composeAll(new StringReader("6"))) {
    66              assertEquals(NodeId.scalar, node.getNodeId());
    67          }
    68      }
    69  }