hphp/runtime/test/hhbc-codec.cpp

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16 #include <gtest/gtest.h>
  17
  18 #include "hphp/runtime/vm/hhbc-codec.h"
  19
  20 namespace HPHP {
  21
  22 TEST(HHBCCodec, Basic) {
  23   std::vector<uint8_t> bc;
  24
  25   for (size_t i = 0; i <= 0x1fd; ++i) {
  26     auto const op = static_cast<Op>(i);
  27     auto const before_sz = bc.size();
  28     encode_op(op, [&](uint8_t byte) { bc.emplace_back(byte); });
  29     auto const size = bc.size() - before_sz;
  30
  31     // Verify that the encoded size is as expected.
  32     if (i < 0xff) {
  33       EXPECT_TRUE(size == 1);
  34     } else {
  35       EXPECT_TRUE(size == 2);
  36     }
  37   }
  38
  39   const uint8_t* it = bc.data();
  40   auto const end = bc.data() + bc.size();
  41   for (size_t i = 0; i <= 0x1fd; ++i) {
  42     auto const op = decode_op_unchecked(it);
  43     if (i == 0x1fd) {
  44       EXPECT_EQ(it, end);
  45     } else {
  46       EXPECT_LT(it, end);
  47     }
  48     EXPECT_EQ(op, static_cast<Op>(i));
  49   }
  50 }
  51
  52 }