try {
                try ( OutputStream os = f.openOutputStream() ) {
                    writeRandom(4096, 3072, os);
                }

                // this should truncate
                try ( OutputStream os = f.openOutputStream() ) {
                    writeRandom(4096, 1024, os);
                }

                try ( InputStream is = f.getInputStream() ) {

            try {
                int bufSize = 4096;
                long l = 1024;
                try ( SmbRandomAccessFile raf = new SmbRandomAccessFile(f, "rw") ) {
                    writeRandom(bufSize, l, raf);
                    assertEquals(l, raf.getFilePointer());
                    raf.seek(0);
                    assertEquals(0, raf.getFilePointer());
                    verifyRandom(bufSize, l, raf);

                try {
                    try ( OutputStream os = f.getOutputStream() ) {
                        ReadWriteTest.writeRandom(bufSize, length, os);
                    }

                    try ( OutputStream os = t.getOutputStream() ) {
                        ReadWriteTest.writeRandom(bufSize, 2 * length, os);
                    }

                    f.copyTo(t);
                    assertTrue(f.exists());