| // Copyright 2008 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 fast objects |
| |
| var o = { }; |
| assertFalse(0 in o); |
| assertFalse('x' in o); |
| assertFalse('y' in o); |
| assertTrue('toString' in o, "toString"); |
| |
| var o = { x: 12 }; |
| assertFalse(0 in o); |
| assertTrue('x' in o); |
| assertFalse('y' in o); |
| assertTrue('toString' in o, "toString"); |
| |
| var o = { x: 12, y: 15 }; |
| assertFalse(0 in o); |
| assertTrue('x' in o); |
| assertTrue('y' in o); |
| assertTrue('toString' in o, "toString"); |
| |
| |
| // ---------------- |
| // Check dense arrays |
| |
| var a = [ ]; |
| assertFalse(0 in a); |
| assertFalse(1 in a); |
| assertFalse('0' in a); |
| assertFalse('1' in a); |
| assertTrue('toString' in a, "toString"); |
| |
| var a = [ 1 ]; |
| assertTrue(0 in a); |
| assertFalse(1 in a); |
| assertTrue('0' in a); |
| assertFalse('1' in a); |
| assertTrue('toString' in a, "toString"); |
| |
| var a = [ 1, 2 ]; |
| assertTrue(0 in a); |
| assertTrue(1 in a); |
| assertTrue('0' in a); |
| assertTrue('1' in a); |
| assertTrue('toString' in a, "toString"); |
| |
| var a = [ 1, 2 ]; |
| assertFalse(0.001 in a); |
| assertTrue(-0 in a); |
| assertTrue(+0 in a); |
| assertFalse('0.0' in a); |
| assertFalse('1.0' in a); |
| assertFalse(NaN in a); |
| assertFalse(Infinity in a); |
| assertFalse(-Infinity in a); |
| |
| /***** |
| * NOTE: Two of the tests below are disabled due to a bug in V8. |
| * Fast case (non-dictionary) sparse arrays do not work as advertised. |
| * |
| */ |
| |
| var a = []; |
| a[1] = 2; |
| //assertFalse(0 in a); |
| assertTrue(1 in a); |
| assertFalse(2 in a); |
| //assertFalse('0' in a); |
| assertTrue('1' in a); |
| assertFalse('2' in a); |
| assertTrue('toString' in a, "toString"); |
| |
| |
| // ---------------- |
| // Check dictionary ("normalized") objects |
| |
| var o = {}; |
| for (var i = 0x0020; i < 0x02ff; i += 2) { |
| o['char:' + String.fromCharCode(i)] = i; |
| } |
| for (var i = 0x0020; i < 0x02ff; i += 2) { |
| assertTrue('char:' + String.fromCharCode(i) in o); |
| assertFalse('char:' + String.fromCharCode(i + 1) in o); |
| } |
| assertTrue('toString' in o, "toString"); |
| |
| var o = {}; |
| o[Math.pow(2,30)-1] = 0; |
| o[Math.pow(2,31)-1] = 0; |
| o[1] = 0; |
| assertFalse(0 in o); |
| assertTrue(1 in o); |
| assertFalse(2 in o); |
| assertFalse(Math.pow(2,30)-2 in o); |
| assertTrue(Math.pow(2,30)-1 in o); |
| assertFalse(Math.pow(2,30)-0 in o); |
| assertTrue(Math.pow(2,31)-1 in o); |
| assertFalse(0.001 in o); |
| assertFalse('0.0' in o); |
| assertFalse('1.0' in o); |
| assertFalse(NaN in o); |
| assertFalse(Infinity in o); |
| assertFalse(-Infinity in o); |
| assertFalse(-0 in o); |
| assertFalse(+0 in o); |
| assertTrue('toString' in o, "toString"); |
| |
| |
| // ---------------- |
| // Check sparse arrays |
| |
| var a = []; |
| a[Math.pow(2,30)-1] = 0; |
| a[Math.pow(2,31)-1] = 0; |
| a[1] = 0; |
| assertFalse(0 in a, "0 in a"); |
| assertTrue(1 in a, "1 in a"); |
| assertFalse(2 in a, "2 in a"); |
| assertFalse(Math.pow(2,30)-2 in a, "Math.pow(2,30)-2 in a"); |
| assertTrue(Math.pow(2,30)-1 in a, "Math.pow(2,30)-1 in a"); |
| assertFalse(Math.pow(2,30)-0 in a, "Math.pow(2,30)-0 in a"); |
| assertTrue(Math.pow(2,31)-1 in a, "Math.pow(2,31)-1 in a"); |
| assertFalse(0.001 in a, "0.001 in a"); |
| assertFalse('0.0' in a,"'0.0' in a"); |
| assertFalse('1.0' in a,"'1.0' in a"); |
| assertFalse(NaN in a,"NaN in a"); |
| assertFalse(Infinity in a,"Infinity in a"); |
| assertFalse(-Infinity in a,"-Infinity in a"); |
| assertFalse(-0 in a,"-0 in a"); |
| assertFalse(+0 in a,"+0 in a"); |
| assertTrue('toString' in a, "toString"); |
| |
| // ------------- |
| // Check negative indices in arrays. |
| var a = []; |
| assertFalse(-1 in a); |
| a[-1] = 43; |
| assertTrue(-1 in a); |