github.com/igggame/nebulas-go@v2.1.0+incompatible/nf/nvm/test/instruction_counter_tests/while_1_0_0.js (about)

     1  // Copyright (C) 2017 go-nebulas authors
     2  //
     3  // This file is part of the go-nebulas library.
     4  //
     5  // the go-nebulas library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // the go-nebulas library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  // GNU General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU General Public License
    16  // along with the go-nebulas library.  If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  
    19  const assert = require('assert.js');
    20  
    21  function assertEqual(func, args, expected, expected_count, msg) {
    22      const count_of_helper_statement = 46;
    23      var count = _instruction_counter.count;
    24      assert.equal(func.apply(null, args), expected);
    25      assert.equal(_instruction_counter.count - count - count_of_helper_statement, expected_count, msg);
    26  };
    27  
    28  // test1.
    29  var test1 = function (x) {
    30      var ret = 1;
    31      var i = x;
    32      while (ret < 1024 && i > 0) {
    33          ret *= 2;
    34          i--;
    35      }
    36      return ret;
    37  };
    38  assertEqual(test1, [0], 1, 9);
    39  assertEqual(test1, [2], 4, 15 * 2 + 9);
    40  assertEqual(test1, [10], 1024, 15 * 10 + 9);
    41  assertEqual(test1, [11], 1024, 15 * 10 + 9);
    42  
    43  // test2.
    44  var test2 = function (x) {
    45      var ret = 1;
    46      var i = x;
    47      do {
    48          ret *= 2;
    49          i--;
    50      } while (ret < 1024 && i > 0);
    51      return ret;
    52  }
    53  assertEqual(test2, [0], 2, 15);
    54  assertEqual(test2, [2], 4, 15 * 2);
    55  assertEqual(test2, [10], 1024, 15 * 10);
    56  assertEqual(test2, [11], 1024, 15 * 10);
    57  
    58  // test3.
    59  var test3 = function (x) {
    60      var ret = 1;
    61      while (ret < 1024) ret *= 2;
    62      return ret;
    63  };
    64  assertEqual(test3, [1], 1024, 63);
    65  assertEqual(test3, [2], 1024, 63);
    66  assertEqual(test3, [10], 1024, 63);