public TestInputStreamByteIterator(String testName) 
{
        super(testName);
}

 protected byte[] getFullElements() 
{
        byte[] bytes = new byte[256];
        for(int i=0; i <  256; i++) {
            bytes[i] = (byte)(i-128);
        }
        return bytes;
}

 protected ByteIterator makeEmptyByteIterator() 
{
        return new InputStreamByteIterator(new ByteArrayInputStream(new byte[0]));
}

 protected ByteIterator makeFullByteIterator() 
{
        return new InputStreamByteIterator(new ByteArrayInputStream(getFullElements()));
}

 public static Test suite() 
{
        return new TestSuite(TestInputStreamByteIterator.class);
}

 public boolean supportsRemove() 
{
        return false;
}

 public  void testAdaptNonNull() 
{
        assertNotNull(InputStreamByteIterator.adapt(new ByteArrayInputStream(new byte[0])));
}

 public  void testAdaptNull() 
{
        assertNull(InputStreamByteIterator.adapt(null));
}

 public  void testErrorThrowingStream() 
{
        InputStream errStream = new InputStream() {
            public int read() throws IOException {
                throw new IOException();
            }
        };
        ByteIterator iter = new InputStreamByteIterator(errStream);
        try {
            iter.hasNext();
            fail("Expected RuntimeException");
        } catch(RuntimeException e) {
            // expected
        } 
        try {
            iter.next();
            fail("Expected RuntimeException");
        } catch(RuntimeException e) {
            // expected
        }
}