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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) {
+ var sample = new TA([42, 43, 42, 41]);
+ assert.sameValue(sample.indexOf(42), 0, "indexOf(42)");
+ assert.sameValue(sample.indexOf(43), 1, "indexOf(43)");
+ assert.sameValue(sample.indexOf(43, 1), 1, "indexOf(43, 1)");
+ assert.sameValue(sample.indexOf(42, 1), 2, "indexOf(42, 1)");
+ assert.sameValue(sample.indexOf(42, 2), 2, "indexOf(42, 2)");
+
+ assert.sameValue(sample.indexOf(42, -4), 0, "indexOf(42, -4)");
+ assert.sameValue(sample.indexOf(42, -3), 2, "indexOf(42, -3)");
+ assert.sameValue(sample.indexOf(42, -2), 2, "indexOf(42, -2)");
+ assert.sameValue(sample.indexOf(42, -5), 0, "indexOf(42, -5)");
+});
+
+reportCompare(0, 0);