@Test
public void testReadClosed() throws IOException {
final InputStream in = new ClosedInputStream();
final byte[] buf = new byte[1];
final int count = IOUtils.read(in, buf);
assertEquals(-1, count);
assertArrayEquals(new byte[1], buf);
}
@Test
public void testReadFull() throws IOException {
final byte[] expected = new byte[100];
Arrays.fill(expected, (byte) 1);
final InputStream in = new ByteArrayInputStream(expected);
final byte[] actual = new byte[100];
final int count = IOUtils.read(in, actual);
assertEquals(expected.length, count);
assertArrayEquals(expected, actual);
}
@Test
public void testReadShort() throws IOException {
final byte[] expected = new byte[50];
Arrays.fill(expected, (byte) 1);
final InputStream in = new ByteArrayInputStream(expected);
final byte[] actual = new byte[100];
final int count = IOUtils.read(in, actual);
assertEquals(50, count);
assertArrayEquals(expected, Arrays.copyOfRange(actual, 0, count));
assertArrayEquals(new byte[50], Arrays.copyOfRange(actual, count, 100));
}