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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.IOException;
    20  import java.io.InputStream;
    21  import java.io.Writer;
    22
    23  import junit.framework.TestCase;
    24
    25  import org.yaml.snakeyaml.error.YAMLException;
    26
    27  public class InputOutputExceptionTest extends TestCase {
    28      public void testIOExceptionOnLoad() throws Exception {
    29          try {
    30              new Yaml().load(new BrokenInputStream());
    31              fail("Input must be broken.");
    32          } catch (YAMLException e) {
    33              assertTrue(e.getCause() instanceof IOException);
    34              assertEquals("java.io.IOException: Broken 2", e.getMessage());
    35          }
    36      }
    37
    38      public void testIOExceptionOnDump() throws Exception {
    39          try {
    40              new Yaml().dump("something", new BrokenWriter());
    41              fail("Output must be broken.");
    42          } catch (YAMLException e) {
    43              assertTrue(e.getCause() instanceof IOException);
    44              assertEquals("java.io.IOException: Broken 12", e.getMessage());
    45          }
    46      }
    47
    48      private static class BrokenInputStream extends InputStream {
    49          @Override
    50          public int read() throws IOException {
    51              throw new IOException("Broken 1");
    52          }
    53
    54          @Override
    55          public int read(byte[] bytes, int i, int i1) throws IOException {
    56              throw new IOException("Broken 2");
    57          }
    58
    59          @Override
    60          public void close() throws IOException {
    61              throw new IOException("Broken 3");
    62          }
    63      }
    64
    65      private static class BrokenWriter extends Writer {
    66          @Override
    67          public void close() throws IOException {
    68              throw new IOException("Broken 10");
    69          }
    70
    71          @Override
    72          public void flush() throws IOException {
    73              throw new IOException("Broken 11");
    74          }
    75
    76          @Override
    77          public void write(char[] cbuf, int off, int len) throws IOException {
    78              throw new IOException("Broken 12");
    79          }
    80      }
    81  }