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// 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.indexof
description: returns index for the first found element
info: |
22.2.3.13 %TypedArray%.prototype.indexOf (searchElement [ , fromIndex ] )
%TypedArray%.prototype.indexOf is a distinct function that implements the same
algorithm as Array.prototype.indexOf as defined in 22.1.3.12 except that the
this object's [[ArrayLength]] internal slot is accessed in place of performing
a [[Get]] of "length".
22.1.3.12 Array.prototype.indexOf ( searchElement [ , fromIndex ] )
...
6. If n ≥ 0, then
a. If n is -0, let k be +0; else let k be n.
7. Else n < 0,
a. Let k be len + n.
b. If k < 0, let k be 0.
8. Repeat, while k < len
a. Let kPresent be ? HasProperty(O, ! ToString(k)).
b. If kPresent is true, then
i. Let elementK be ? Get(O, ! ToString(k)).
ii. Let same be the result of performing Strict Equality Comparison
searchElement === elementK.
iii. If same is true, return k.
...
includes: [testTypedArray.js]
features: [TypedArray]
---*/
testWithTypedArrayConstructors(function(TA, N) {
var sample = new TA(N([42, 43, 42, 41]));
assert.sameValue(sample.indexOf(N(42)), 0, "indexOf(42)");
assert.sameValue(sample.indexOf(N(43)), 1, "indexOf(43)");
assert.sameValue(sample.indexOf(N(43), 1), 1, "indexOf(43, 1)");
assert.sameValue(sample.indexOf(N(42), 1), 2, "indexOf(42, 1)");
assert.sameValue(sample.indexOf(N(42), 2), 2, "indexOf(42, 2)");
assert.sameValue(sample.indexOf(N(42), -4), 0, "indexOf(42, -4)");
assert.sameValue(sample.indexOf(N(42), -3), 2, "indexOf(42, -3)");
assert.sameValue(sample.indexOf(N(42), -2), 2, "indexOf(42, -2)");
assert.sameValue(sample.indexOf(N(42), -5), 0, "indexOf(42, -5)");
});
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