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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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114 TestSlice(10, 100, 0.01, 10.96); | 114 TestSlice(10, 100, 0.01, 10.96); |
115 | 115 |
116 TestSlice(10, 100, 90); | 116 TestSlice(10, 100, 90); |
117 TestSlice(10, 100, -10); | 117 TestSlice(10, 100, -10); |
118 } | 118 } |
119 | 119 |
120 TestArrayBufferSlice(); | 120 TestArrayBufferSlice(); |
121 | 121 |
122 // Typed arrays | 122 // Typed arrays |
123 | 123 |
| 124 function getPropertyDescriptor(object, field, expectedDepth) { |
| 125 for (var depth = 0; depth < expectedDepth; depth++) { |
| 126 assertFalse(Object.hasOwnProperty(object, field)); |
| 127 object = object.__proto__; |
| 128 } |
| 129 return Object.getOwnPropertyDescriptor(object, field); |
| 130 } |
| 131 |
124 function TestTypedArray(constr, elementSize, typicalElement) { | 132 function TestTypedArray(constr, elementSize, typicalElement) { |
125 assertSame(elementSize, constr.BYTES_PER_ELEMENT); | 133 assertSame(elementSize, constr.BYTES_PER_ELEMENT); |
126 | 134 |
127 var ab = new ArrayBuffer(256*elementSize); | 135 var ab = new ArrayBuffer(256*elementSize); |
128 | 136 |
129 var a0 = new constr(30); | 137 var a0 = new constr(30); |
130 assertEquals("[object " + constr.name + "]", | 138 assertEquals("[object " + constr.name + "]", |
131 Object.prototype.toString.call(a0)); | 139 Object.prototype.toString.call(a0)); |
132 | 140 |
133 assertTrue(ArrayBuffer.isView(a0)); | 141 assertTrue(ArrayBuffer.isView(a0)); |
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262 | 270 |
263 var aNoParam = new constr(); | 271 var aNoParam = new constr(); |
264 assertSame(elementSize, aNoParam.BYTES_PER_ELEMENT); | 272 assertSame(elementSize, aNoParam.BYTES_PER_ELEMENT); |
265 assertSame(0, aNoParam.length); | 273 assertSame(0, aNoParam.length); |
266 assertSame(0, aNoParam.byteLength); | 274 assertSame(0, aNoParam.byteLength); |
267 assertSame(0, aNoParam.byteOffset); | 275 assertSame(0, aNoParam.byteOffset); |
268 | 276 |
269 var a = new constr(ab, 64*elementSize, 128); | 277 var a = new constr(ab, 64*elementSize, 128); |
270 assertEquals("[object " + constr.name + "]", | 278 assertEquals("[object " + constr.name + "]", |
271 Object.prototype.toString.call(a)); | 279 Object.prototype.toString.call(a)); |
272 var desc = Object.getOwnPropertyDescriptor( | 280 var desc = getPropertyDescriptor(constr.prototype, Symbol.toStringTag, 1); |
273 constr.prototype, Symbol.toStringTag); | |
274 assertTrue(desc.configurable); | 281 assertTrue(desc.configurable); |
275 assertFalse(desc.enumerable); | 282 assertFalse(desc.enumerable); |
276 assertFalse(!!desc.writable); | 283 assertFalse(!!desc.writable); |
277 assertFalse(!!desc.set); | 284 assertFalse(!!desc.set); |
278 assertEquals("function", typeof desc.get); | 285 assertEquals("function", typeof desc.get); |
279 | 286 |
280 // Test that the constructor can be called with an iterable | 287 // Test that the constructor can be called with an iterable |
281 function* gen() { for (var i = 0; i < 10; i++) yield i; } | 288 function* gen() { for (var i = 0; i < 10; i++) yield i; } |
282 var genArr = new constr(gen()); | 289 var genArr = new constr(gen()); |
283 assertEquals(10, genArr.length); | 290 assertEquals(10, genArr.length); |
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410 Uint16Array, | 417 Uint16Array, |
411 Int16Array, | 418 Int16Array, |
412 Uint32Array, | 419 Uint32Array, |
413 Int32Array, | 420 Int32Array, |
414 Uint8ClampedArray, | 421 Uint8ClampedArray, |
415 Float32Array, | 422 Float32Array, |
416 Float64Array]; | 423 Float64Array]; |
417 | 424 |
418 function TestPropertyTypeChecks(constructor) { | 425 function TestPropertyTypeChecks(constructor) { |
419 function CheckProperty(name) { | 426 function CheckProperty(name) { |
420 var d = Object.getOwnPropertyDescriptor(constructor.prototype, name); | 427 var d = getPropertyDescriptor(constructor.prototype, name, 1); |
421 var o = {}; | 428 var o = {}; |
422 assertThrows(function() {d.get.call(o);}, TypeError); | 429 assertThrows(function() {d.get.call(o);}, TypeError); |
423 for (var i = 0; i < typedArrayConstructors.length; i++) { | 430 for (var i = 0; i < typedArrayConstructors.length; i++) { |
424 var ctor = typedArrayConstructors[i]; | 431 var ctor = typedArrayConstructors[i]; |
425 var a = new ctor(10); | 432 var a = new ctor(10); |
426 if (ctor === constructor) { | 433 d.get.call(a); // shouldn't throw, even from a different type |
427 d.get.call(a); // shouldn't throw | |
428 } else { | |
429 assertThrows(function() {d.get.call(a);}, TypeError); | |
430 } | |
431 } | 434 } |
432 } | 435 } |
433 | 436 |
434 CheckProperty("buffer"); | 437 CheckProperty("buffer"); |
435 CheckProperty("byteOffset"); | 438 CheckProperty("byteOffset"); |
436 CheckProperty("byteLength"); | 439 CheckProperty("byteLength"); |
437 CheckProperty("length"); | 440 CheckProperty("length"); |
438 } | 441 } |
439 | 442 |
440 for(i = 0; i < typedArrayConstructors.length; i++) { | 443 for(i = 0; i < typedArrayConstructors.length; i++) { |
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749 TestArbitrary(new ArrayBuffer(256)); | 752 TestArbitrary(new ArrayBuffer(256)); |
750 for(i = 0; i < typedArrayConstructors.length; i++) { | 753 for(i = 0; i < typedArrayConstructors.length; i++) { |
751 TestArbitrary(new typedArrayConstructors[i](10)); | 754 TestArbitrary(new typedArrayConstructors[i](10)); |
752 } | 755 } |
753 TestArbitrary(new DataView(new ArrayBuffer(256))); | 756 TestArbitrary(new DataView(new ArrayBuffer(256))); |
754 | 757 |
755 | 758 |
756 // Test direct constructor call | 759 // Test direct constructor call |
757 assertThrows(function() { ArrayBuffer(); }, TypeError); | 760 assertThrows(function() { ArrayBuffer(); }, TypeError); |
758 assertThrows(function() { DataView(new ArrayBuffer()); }, TypeError); | 761 assertThrows(function() { DataView(new ArrayBuffer()); }, TypeError); |
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