public void readFileBiggerThan8GBytePosix() throws Exception {
readFileBiggerThan8GByte("/8.posix.tar.gz");
}
private void readFileBiggerThan8GByte(String name) throws Exception {
GzipCompressorInputStream in = null;
TarArchiveInputStream tin = null;
try {
in =
new GzipCompressorInputStream(BigFilesIT.class
.getResourceAsStream(name));
tin = new TarArchiveInputStream(in);
TarArchiveEntry e = tin.getNextTarEntry();
assertNotNull(e);
assertEquals(8200l * 1024 * 1024, e.getSize());
long read = 0;
Random r = new Random(System.currentTimeMillis());
int readNow;
byte[] buf = new byte[1024 * 1024];
while ((readNow = tin.read(buf, 0, buf.length)) > 0) {
// testing all bytes for a value of 0 is going to take
// too long, just pick a few ones randomly
for (int i = 0; i < 100; i++) {
int idx = r.nextInt(readNow);
assertEquals("testing byte " + (read + idx), 0, buf[idx]);
}
read += readNow;
}
assertEquals(8200l * 1024 * 1024, read);
assertNull(tin.getNextTarEntry());
} finally {
if (tin != null) {
tin.close();
}
if (in != null) {
in.close();
}
}
}