Example #1
0
 /** Verify that using a ByteArrayInputStream does not allocate a new byte array. */
 @Test
 public void testByteArrayInputStream() throws Exception {
   byte[] bytes = new byte[8];
   InputStream input = new ByteArrayInputStream(bytes);
   try {
     byte[] bytesRead = StreamUtil.getBytesFromStream(input);
     assertTrue(Arrays.equals(bytes, bytesRead));
   } finally {
     Closeables.close(input, true);
   }
 }
Example #2
0
 /** Verify that using an offset with ByteArrayInputStream still produces correct output. */
 @Test
 public void testByteArrayInputStreamWithOffset() throws Exception {
   byte[] bytes = new byte[] {0, 1, 2, 3, 4};
   InputStream input = new ByteArrayInputStream(bytes, 1, 4);
   try {
     byte[] bytesRead = StreamUtil.getBytesFromStream(input);
     byte[] expectedBytes = new byte[] {1, 2, 3, 4};
     assertTrue(Arrays.equals(expectedBytes, bytesRead));
   } finally {
     Closeables.close(input, true);
   }
 }
Example #3
0
 @Test
 public void testSuccessfulSkip() throws Exception {
   InputStream inputStream = mock(InputStream.class);
   when(inputStream.skip(anyLong())).thenReturn(2L);
   assertEquals(10, StreamUtil.skip(inputStream, 10));
   InOrder order = inOrder(inputStream);
   order.verify(inputStream).skip(10);
   order.verify(inputStream).skip(8);
   order.verify(inputStream).skip(6);
   order.verify(inputStream).skip(4);
   order.verify(inputStream).skip(2);
   verifyNoMoreInteractions(inputStream);
 }
Example #4
0
 @Test
 public void testUnsuccessfulSkip() throws Exception {
   InputStream inputStream = mock(InputStream.class);
   when(inputStream.skip(anyLong())).thenReturn(3L, 5L, 0L, 6L, 0L);
   when(inputStream.read()).thenReturn(3, -1);
   assertEquals(15, StreamUtil.skip(inputStream, 20));
   InOrder order = inOrder(inputStream);
   order.verify(inputStream).skip(20);
   order.verify(inputStream).skip(17);
   order.verify(inputStream).skip(12);
   order.verify(inputStream).read();
   order.verify(inputStream).skip(11);
   order.verify(inputStream).skip(5);
   order.verify(inputStream).read();
   verifyNoMoreInteractions(inputStream);
 }
Example #5
0
  private void checkFileInputStream(int size) throws IOException {
    byte[] bytesToWrite = new byte[size];
    for (int i = 0; i < size; i++) {
      bytesToWrite[i] = (byte) i; // It's okay to truncate
    }

    File tmpFile = File.createTempFile("streamUtil", "test");
    InputStream input = null;
    OutputStream output = null;
    try {
      output = new FileOutputStream(tmpFile);
      output.write(bytesToWrite);
      output.close();

      input = new FileInputStream(tmpFile);
      byte[] bytesRead = StreamUtil.getBytesFromStream(input);
      assertTrue(Arrays.equals(bytesToWrite, bytesRead));
    } finally {
      Closeables.close(input, true);
      Closeables.close(output, false);
      assertTrue(tmpFile.delete());
    }
  }