function testReadBytes()
 {
     $i = 0;
     foreach ($this->tests as $enc) {
         $i++;
         $this->reset($enc);
         $in = Protobuf::read_bytes($this->fp, strlen($enc));
         $this->assertBinaryEqual($enc, $in, "Test {$i} failed to read_bytes(...)");
     }
 }