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| 1 // Copyright 2013 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 // Flags: --harmony-typed-arrays |
| 29 |
| 30 function TestByteLength(param, expectedByteLength) { |
| 31 var ab = new __ArrayBuffer(param); |
| 32 assertSame(expectedByteLength, ab.byteLength); |
| 33 } |
| 34 |
| 35 function TestArrayBufferCreation() { |
| 36 TestByteLength(1, 1); |
| 37 TestByteLength(256, 256); |
| 38 TestByteLength(-10, 0); |
| 39 TestByteLength(2.567, 2); |
| 40 TestByteLength(-2.567, 0); |
| 41 |
| 42 TestByteLength("abc", 0); |
| 43 |
| 44 TestByteLength(0, 0); |
| 45 |
| 46 assertThrows(function() { |
| 47 var ab1 = new __ArrayBuffer(0xFFFFFFFFFFFF) |
| 48 }, RangeError); |
| 49 |
| 50 var ab = new __ArrayBuffer(); |
| 51 assertSame(0, ab.byteLength); |
| 52 } |
| 53 |
| 54 TestArrayBufferCreation(); |
| 55 |
| 56 function TestByteLengthNotWritable() { |
| 57 var ab = new __ArrayBuffer(1024); |
| 58 assertSame(1024, ab.byteLength); |
| 59 |
| 60 assertThrows(function() { "use strict"; ab.byteLength = 42; }, TypeError); |
| 61 } |
| 62 |
| 63 TestByteLengthNotWritable(); |
| 64 |
| 65 function TestSlice(expectedResultLen, initialLen, start, end) { |
| 66 var ab = new __ArrayBuffer(initialLen); |
| 67 var slice = ab.slice(start, end); |
| 68 assertSame(expectedResultLen, slice.byteLength); |
| 69 } |
| 70 |
| 71 function TestArrayBufferSlice() { |
| 72 var ab = new __ArrayBuffer(1024); |
| 73 var ab1 = ab.slice(512, 1024); |
| 74 assertSame(512, ab1.byteLength); |
| 75 |
| 76 TestSlice(512, 1024, 512, 1024); |
| 77 TestSlice(512, 1024, 512); |
| 78 |
| 79 TestSlice(0, 0, 1, 20); |
| 80 TestSlice(100, 100, 0, 100); |
| 81 TestSlice(100, 100, 0, 1000); |
| 82 TestSlice(0, 100, 5, 1); |
| 83 |
| 84 TestSlice(1, 100, -11, -10); |
| 85 TestSlice(9, 100, -10, 99); |
| 86 TestSlice(0, 100, -10, 80); |
| 87 TestSlice(10, 100, 80, -10); |
| 88 |
| 89 TestSlice(10, 100, 90, "100"); |
| 90 TestSlice(10, 100, "90", "100"); |
| 91 |
| 92 TestSlice(0, 100, 90, "abc"); |
| 93 TestSlice(10, 100, "abc", 10); |
| 94 |
| 95 TestSlice(10, 100, 0.96, 10.96); |
| 96 TestSlice(10, 100, 0.96, 10.01); |
| 97 TestSlice(10, 100, 0.01, 10.01); |
| 98 TestSlice(10, 100, 0.01, 10.96); |
| 99 |
| 100 |
| 101 TestSlice(10, 100, 90); |
| 102 TestSlice(10, 100, -10); |
| 103 } |
| 104 |
| 105 TestArrayBufferSlice(); |
| 106 |
| 107 // Test property attribute [[Enumerable]] |
| 108 function TestEnumerable(func) { |
| 109 function props(x) { |
| 110 var array = []; |
| 111 for (var p in x) array.push(p); |
| 112 return array.sort(); |
| 113 } |
| 114 assertArrayEquals([], props(func)); |
| 115 assertArrayEquals([], props(func.prototype)); |
| 116 assertArrayEquals([], props(new func())); |
| 117 } |
| 118 TestEnumerable(__ArrayBuffer); |
| 119 |
| 120 |
| 121 // Test arbitrary properties on ArrayBuffer |
| 122 function TestArbitrary(m) { |
| 123 function TestProperty(map, property, value) { |
| 124 map[property] = value; |
| 125 assertEquals(value, map[property]); |
| 126 } |
| 127 for (var i = 0; i < 20; i++) { |
| 128 TestProperty(m, i, 'val' + i); |
| 129 TestProperty(m, 'foo' + i, 'bar' + i); |
| 130 } |
| 131 } |
| 132 TestArbitrary(new __ArrayBuffer(256)); |
| 133 |
| 134 |
| 135 // Test direct constructor call |
| 136 assertTrue(__ArrayBuffer() instanceof __ArrayBuffer); |
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