From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../lastIndexOf/length-zero-returns-minus-one.js | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/length-zero-returns-minus-one.js (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/length-zero-returns-minus-one.js') diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/length-zero-returns-minus-one.js b/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/length-zero-returns-minus-one.js new file mode 100644 index 0000000000..722e7cb618 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/length-zero-returns-minus-one.js @@ -0,0 +1,39 @@ +// 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-%typedarray%.prototype.lastindexof +description: Returns -1 if length is 0 +info: | + 22.2.3.17 %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) + + %TypedArray%.prototype.lastIndexOf is a distinct function that implements the + same algorithm as Array.prototype.lastIndexOf as defined in 22.1.3.15 except + that the this object's [[ArrayLength]] internal slot is accessed in place of + performing a [[Get]] of "length". + + 22.1.3.15 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) + + ... + 2. Let len be ? ToLength(? Get(O, "length")). + 3. If len is 0, return -1. + ... +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +var fromIndex = { + valueOf: function() { + throw new Test262Error(); + } +}; + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA(); + assert.sameValue(sample.lastIndexOf(0), -1, "returns -1"); + assert.sameValue( + sample.lastIndexOf(0, fromIndex), -1, + "length is checked before ToInteger(fromIndex)" + ); +}); + +reportCompare(0, 0); -- cgit v1.2.3