diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/DataView/toindex-byteoffset.js')
-rw-r--r-- | js/src/tests/test262/built-ins/DataView/toindex-byteoffset.js | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/DataView/toindex-byteoffset.js b/js/src/tests/test262/built-ins/DataView/toindex-byteoffset.js new file mode 100644 index 0000000000..eb85ea2dd3 --- /dev/null +++ b/js/src/tests/test262/built-ins/DataView/toindex-byteoffset.js @@ -0,0 +1,93 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-dataview-buffer-byteoffset-bytelength +description: > + ToIndex conversions on byteOffset +info: | + 24.2.2.1 DataView ( buffer, byteOffset, byteLength ) + + ... + 4. Let offset be ? ToIndex(byteOffset). + ... + + ToIndex( value ) + + 1. If value is undefined, then + a. Let index be 0. + 2. Else, + a. Let integerIndex be ? ToInteger(value). + b. If integerIndex < 0, throw a RangeError exception. + c. Let index be ! ToLength(integerIndex). + d. If SameValueZero(integerIndex, index) is false, throw a RangeError exception. + 3. Return index. +---*/ + +var obj1 = { + valueOf: function() { + return 3; + } +}; + +var obj2 = { + toString: function() { + return 4; + } +}; + +var sample; +var ab = new ArrayBuffer(42); + +sample = new DataView(ab, -0); +assert.sameValue(sample.byteOffset, 0, "-0"); + +sample = new DataView(ab, obj1); +assert.sameValue(sample.byteOffset, 3, "object's valueOf"); + +sample = new DataView(ab, obj2); +assert.sameValue(sample.byteOffset, 4, "object's toString"); + +sample = new DataView(ab, ""); +assert.sameValue(sample.byteOffset, 0, "the Empty string"); + +sample = new DataView(ab, "0"); +assert.sameValue(sample.byteOffset, 0, "string '0'"); + +sample = new DataView(ab, "1"); +assert.sameValue(sample.byteOffset, 1, "string '1'"); + +sample = new DataView(ab, true); +assert.sameValue(sample.byteOffset, 1, "true"); + +sample = new DataView(ab, false); +assert.sameValue(sample.byteOffset, 0, "false"); + +sample = new DataView(ab, NaN); +assert.sameValue(sample.byteOffset, 0, "NaN"); + +sample = new DataView(ab, null); +assert.sameValue(sample.byteOffset, 0, "null"); + +sample = new DataView(ab, undefined); +assert.sameValue(sample.byteOffset, 0, "undefined"); + +sample = new DataView(ab, 0.1); +assert.sameValue(sample.byteOffset, 0, "0.1"); + +sample = new DataView(ab, 0.9); +assert.sameValue(sample.byteOffset, 0, "0.9"); + +sample = new DataView(ab, 1.1); +assert.sameValue(sample.byteOffset, 1, "1.1"); + +sample = new DataView(ab, 1.9); +assert.sameValue(sample.byteOffset, 1, "1.9"); + +sample = new DataView(ab, -0.1); +assert.sameValue(sample.byteOffset, 0, "-0.1"); + +sample = new DataView(ab, -0.99999); +assert.sameValue(sample.byteOffset, 0, "-0.99999"); + +reportCompare(0, 0); |