@Test
public void testCopyBuffer() throws IOException {
final byte[] buf = new byte[1024];
final byte[] expected = new byte[10000];
final long seed = System.currentTimeMillis();
final Random rng = new Random(seed);
rng.nextBytes(expected);
final ByteArrayInputStream in = new ByteArrayInputStream(expected);
final ByteArrayOutputStream out = new ByteArrayOutputStream();
final int count = IOUtils.copy(in, out, buf);
assertEquals("seed == " + seed, expected.length, count);
assertArrayEquals("seed == " + seed, expected, out.toByteArray());
}
@Test
public void testCopyLargeFileChannels() throws IOException {
final File ifile = new File("test/VASSAL/tools/io/IOUtilsTest.java");
final File ofile = new File("test/VASSAL/tools/io/test.out");
try {
final FileInputStream in = new FileInputStream(ifile);
final FileOutputStream out = new FileOutputStream(ofile);
final long count = IOUtils.copy(in, out);
assertEquals(ifile.length(), count);
assertTrue(FileUtils.contentEquals(ifile, ofile));
} finally {
ofile.delete();
}
}