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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%.from
+description: >
+ Return a new TypedArray using a custom Constructor
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+var source = [42, 43, 42];
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+ var called = 0;
+
+ var ctor = function(len) {
+ assert.sameValue(arguments.length, 1);
+ called++;
+ return new TA(len);
+ };
+
+ var result = TA.from.call(ctor, convertToBigInt(source));
+ assert.sameValue(result.length, 3);
+ assert.sameValue(result[0], convertToBigInt(42));
+ assert.sameValue(result[1], convertToBigInt(43));
+ assert.sameValue(result[2], convertToBigInt(42));
+ assert.sameValue(result.constructor, TA);
+ assert.sameValue(Object.getPrototypeOf(result), TA.prototype);
+ assert.sameValue(called, 1);
+});