TestConfiguration.java 文件源码

/**
 * Tests use of multi-byte characters in property names and values.  This test
 * round-trips multi-byte string literals through saving and loading of config
 * and asserts that the same values were read.
 */
public void testMultiByteCharacters() throws IOException {
  String priorDefaultEncoding = System.getProperty("file.encoding");
  try {
    System.setProperty("file.encoding", "US-ASCII");
    String name = "multi_byte_\u611b_name";
    String value = "multi_byte_\u0641_value";
    out = new BufferedWriter(new OutputStreamWriter(
      new FileOutputStream(CONFIG_MULTI_BYTE), "UTF-8"));
    startConfig();
    declareProperty(name, value, value);
    endConfig();

    Configuration conf = new Configuration(false);
    conf.addResource(new Path(CONFIG_MULTI_BYTE));
    assertEquals(value, conf.get(name));
    FileOutputStream fos = new FileOutputStream(CONFIG_MULTI_BYTE_SAVED);
    try {
      conf.writeXml(fos);
    } finally {
      IOUtils.closeStream(fos);
    }

    conf = new Configuration(false);
    conf.addResource(new Path(CONFIG_MULTI_BYTE_SAVED));
    assertEquals(value, conf.get(name));
  } finally {
    System.setProperty("file.encoding", priorDefaultEncoding);
  }
}