byte[] bytesOrig = new byte[2048];
r.nextBytes(bytesOrig);
out.write(bytesOrig, 0, 2048);
byte[] readContent = new byte[2048];
InputStream in = store.createInputStream(0, contentOrig.getBytes().length);
int c = in.read(readContent, 0, 3000);
assertEquals(contentOrig, new String(readContent, 0, c));
c = in.read(readContent, 0, 3000);
assertEquals(-1, c);
in.close();