content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  package com.aliyun.oss.common.utils;
  
  import java.io.*;
  
  import org.junit.Test;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;;
  
  public class IOUtilTest {
      @Test
      public void testBase64String() {
          String dataString = "OssService";
          byte[] expectByteData = dataString.getBytes();
          InputStream inStream = new ByteArrayInputStream(expectByteData);
          byte[] byteData = null;
          try {
              byteData = IOUtils.readStreamAsByteArray(inStream);
              assertArrayEquals(byteData, expectByteData);
              byteData = IOUtils.readStreamAsByteArray(null);
              assertArrayEquals(byteData, new byte[0]);
          } catch (IOException e) {
              e.printStackTrace();
          }
          IOUtils.safeClose(inStream);
          OutputStream outStream = new ByteArrayOutputStream();
          IOUtils.safeClose(outStream);
      }
  
      @Test
      public void testReadStreamAsString() {
          try {
              assertEquals("", IOUtils.readStreamAsString(null, "utf8"));
          } catch (IOException e) {
              assertTrue(false);
          }
      }
  
      @Test
      public void testMiscFunctions() {
          InputStream inputStream = null;
          OutputStream outputStream = null;
          IOUtils.safeClose(inputStream);
          IOUtils.safeClose(outputStream);
  
          File file = null;
          assertEquals(false, IOUtils.checkFile(file));
  
          byte[] data = new byte[10];
          ByteArrayInputStream is = new ByteArrayInputStream(data);
          assertEquals(null, IOUtils.getCRCValue(is));
      }
  
  }
  