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Diffstat (limited to 'js/src/tests/test262/built-ins/ArrayBuffer/prototype/slice/negative-start.js')
-rw-r--r-- | js/src/tests/test262/built-ins/ArrayBuffer/prototype/slice/negative-start.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/ArrayBuffer/prototype/slice/negative-start.js b/js/src/tests/test262/built-ins/ArrayBuffer/prototype/slice/negative-start.js new file mode 100644 index 0000000000..6beac51f68 --- /dev/null +++ b/js/src/tests/test262/built-ins/ArrayBuffer/prototype/slice/negative-start.js @@ -0,0 +1,33 @@ +// Copyright (C) 2015 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-arraybuffer.prototype.slice +description: > + Negative `start` index is relative to [[ArrayBufferByteLength]]. +info: | + ArrayBuffer.prototype.slice ( start, end ) + + ... + 8. If relativeStart < 0, let first be max((len + relativeStart),0); else let first be min(relativeStart, len). + ... +---*/ + +var arrayBuffer = new ArrayBuffer(8); + +var start = -5, + end = 6; +var result = arrayBuffer.slice(start, end); +assert.sameValue(result.byteLength, 3, "slice(-5, 6)"); + +var start = -12, + end = 6; +var result = arrayBuffer.slice(start, end); +assert.sameValue(result.byteLength, 6, "slice(-12, 6)"); + +var start = -Infinity, + end = 6; +var result = arrayBuffer.slice(start, end); +assert.sameValue(result.byteLength, 6, "slice(-Infinity, 6)"); + +reportCompare(0, 0); |