text: // Copyright 2010 the V8 project authors. All rights reserved.
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  //       notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  //       copyright notice, this list of conditions and the following
  //       disclaimer in the documentation and/or other materials provided
  //       with the distribution.
  //     * Neither the name of Google Inc. nor the names of its
  //       contributors may be used to endorse or promote products derived
  //       from this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  // Check pushes with various number of arguments.
  (function() {
    var a = [];
    for (var i = 0; i < 7; i++) {
      a = [];
  
      assertEquals(0, a.push());
      assertEquals([], a, "after .push()");
  
      assertEquals(1, a.push(1), "length after .push(1)");
      assertEquals([1], a, "after .push(1)");
  
      assertEquals(3, a.push(2, 3), "length after .push(2, 3)");
      assertEquals([1, 2, 3], a, "after .push(2, 3)");
  
      assertEquals(6, a.push(4, 5, 6),
        "length after .push(4, 5, 6)");
      assertEquals([1, 2, 3, 4, 5, 6], a,
        "after .push(4, 5, 5)");
  
      assertEquals(10, a.push(7, 8, 9, 10),
        "length after .push(7, 8, 9, 10)");
      assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a,
        "after .push(7, 8, 9, 10)");
  
      assertEquals(15, a.push(11, 12, 13, 14, 15),
        "length after .push(11, 12, 13, 14, 15)");
      assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], a,
        "after .push(11, 12, 13, 14, 15)");
  
      assertEquals(21, a.push(16, 17, 18, 19, 20, 21),
        "length after .push(16, 17, 18, 19, 20, 21)");
      assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21], a,
        "after .push(16, 17, 18, 19, 20, 21)");
  
      assertEquals(28, a.push(22, 23, 24, 25, 26, 27, 28),
        "length hafter .push(22, 23, 24, 25, 26, 27, 28)");
      assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28], a,
        "after .push(22, 23, 24, 25, 26, 27, 28)");
    }
  })();
  
  // Excerises various pushes to the array at the end of new space.
  (function() {
    var a = undefined;
    for (var i = 0; i < 7; i++) {
      a = [];
      assertEquals(1, a.push(1));
      assertEquals(2, a.push(2));
      assertEquals(3, a.push(3));
      assertEquals(4, a.push(4));
      assertEquals(5, a.push(5));
      assertEquals(6, a.push(6));
      assertEquals(7, a.push(7));
      assertEquals(8, a.push(8));
      assertEquals(9, a.push(9));
      assertEquals(10, a.push(10));
      assertEquals(11, a.push(11));
      assertEquals(12, a.push(12));
      assertEquals(13, a.push(13));
      assertEquals(14, a.push(14));
      assertEquals(15, a.push(15));
      assertEquals(16, a.push(16));
      assertEquals(17, a.push(17));
      assertEquals(18, a.push(18));
      assertEquals(19, a.push(19));
      assertEquals(20, a.push(20));
      assertEquals(21, a.push(21));
      assertEquals(22, a.push(22));
      assertEquals(23, a.push(23));
      assertEquals(24, a.push(24));
      assertEquals(25, a.push(25));
      assertEquals(26, a.push(26));
      assertEquals(27, a.push(27));
      assertEquals(28, a.push(28));
      assertEquals(29, a.push(29));
    }
  })();
  
  // Test the case of not JSArray receiver.
  // Regression test for custom call generators, see issue 684.
  (function() {
    var x = {__proto__: []};
    for (var i = 0; i < 100; i++) {
      x.push("a");
      assertEquals(i + 1, x.length, i + 'th iteration');
    }
  })();
  