@Test
public void testDrainTo_none() throws Exception {
Message m = new Message();
byte[] bytes = IoUtils.toByteArray(marshaller.stream(m));
InputStream is = marshaller.stream(m);
byte[] unused = IoUtils.toByteArray(is);
Drainable d = (Drainable) is;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
assertEquals(0, d.drainTo(baos));
assertArrayEquals(new byte[0], baos.toByteArray());
assertEquals(0, is.available());
}
@Test
public void testDrainTo_all() throws Exception {
Message m = new Message();
byte[] bytes = IoUtils.toByteArray(marshaller.stream(m));
InputStream is = marshaller.stream(m);
Drainable d = (Drainable) is;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int drained = d.drainTo(baos);
assertEquals(baos.size(), drained);
assertArrayEquals(bytes, baos.toByteArray());
assertEquals(0, is.available());
}