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      1 // Copyright 2008 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 assertEquals(0, parseInt('0'));
     29 assertEquals(0, parseInt(' 0'));
     30 assertEquals(0, parseInt(' 0 '));
     31 
     32 assertEquals(63, parseInt('077'));
     33 assertEquals(63, parseInt('  077'));
     34 assertEquals(63, parseInt('  077   '));
     35 assertEquals(-63, parseInt('  -077'));
     36 
     37 assertEquals(3, parseInt('11', 2));
     38 assertEquals(4, parseInt('11', 3));
     39 assertEquals(4, parseInt('11', 3.8));
     40 
     41 assertEquals(0x12, parseInt('0x12'));
     42 assertEquals(0x12, parseInt('0x12', 16));
     43 assertEquals(0x12, parseInt('0x12', 16.1));
     44 assertEquals(0x12, parseInt('0x12', NaN));
     45 assertTrue(isNaN(parseInt('0x  ')));
     46 assertTrue(isNaN(parseInt('0x')));
     47 assertTrue(isNaN(parseInt('0x  ', 16)));
     48 assertTrue(isNaN(parseInt('0x', 16)));
     49 assertEquals(12, parseInt('12aaa'));
     50 
     51 assertEquals(0.1, parseFloat('0.1'));
     52 assertEquals(0.1, parseFloat('0.1aaa'));
     53 assertEquals(0, parseFloat('0aaa'));
     54 assertEquals(0, parseFloat('0x12'));
     55 assertEquals(77, parseFloat('077'));
     56 
     57 assertEquals(Infinity, parseInt('1000000000000000000000000000000000000000000000'
     58     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     59     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     60     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     61     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     62     + '0000000000000'));
     63 
     64 assertEquals(Infinity, parseInt('0x10000000000000000000000000000000000000000000'
     65     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     66     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     67     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     68     + '000000000000000000000000000000000000000000000000000000000000000000000000'
     69     + '0000000000000'));
     70 
     71 
     72 var i;
     73 var y = 10;
     74 
     75 for (i = 1; i < 21; i++) {
     76   var x = eval("1.2e" + i);
     77   assertEquals(Math.floor(x), parseInt(x));
     78   x = eval("1e" + i);
     79   assertEquals(x, y);
     80   y *= 10;
     81   assertEquals(Math.floor(x), parseInt(x));
     82   x = eval("-1e" + i);
     83   assertEquals(Math.ceil(x), parseInt(x));
     84   x = eval("-1.2e" + i);
     85   assertEquals(Math.ceil(x), parseInt(x));
     86 }
     87 
     88 for (i = 21; i < 53; i++) {
     89   var x = eval("1e" + i);
     90   assertEquals(1, parseInt(x));
     91   x = eval("-1e" + i);
     92   assertEquals(-1, parseInt(x));
     93 }
     94 
     95 assertTrue(isNaN(parseInt(0/0)));
     96 assertTrue(isNaN(parseInt(1/0)), "parseInt Infinity");
     97 assertTrue(isNaN(parseInt(-1/0)), "parseInt -Infinity");
     98 
     99 assertTrue(isNaN(parseFloat(0/0)));
    100 assertEquals(Infinity, parseFloat(1/0), "parseFloat Infinity");
    101 assertEquals(-Infinity, parseFloat(-1/0), "parseFloat -Infinity");
    102 
    103 var state;
    104 var throwingRadix = { valueOf: function() { state = "throwingRadix"; throw null; } };
    105 var throwingString = { toString: function() { state = "throwingString"; throw null; } };
    106 state = null;
    107 try { parseInt('123', throwingRadix); } catch (e) {}
    108 assertEquals(state, "throwingRadix");
    109 
    110 state = null;
    111 try { parseInt(throwingString, 10); } catch (e) {}
    112 assertEquals(state, "throwingString");
    113 
    114 state = null;
    115 try { parseInt(throwingString, throwingRadix); } catch (e) {}
    116 assertEquals(state, "throwingString");
    117