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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: Throw a TypeError exception is mapfn is not callable
+info: |
+ 22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+ ...
+ 3. If mapfn was supplied and mapfn is not undefined, then
+ a. If IsCallable(mapfn) is false, throw a TypeError exception.
+ ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, Symbol, Symbol.iterator, TypedArray]
+---*/
+
+var getIterator = 0;
+var arrayLike = {};
+Object.defineProperty(arrayLike, Symbol.iterator, {
+ get: function() {
+ getIterator++;
+ }
+});
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+ assert.throws(TypeError, function() {
+ TA.from(arrayLike, null);
+ }, "mapfn is null");
+
+ assert.throws(TypeError, function() {
+ TA.from(arrayLike, 42);
+ }, "mapfn is a number");
+
+ assert.throws(TypeError, function() {
+ TA.from(arrayLike, "");
+ }, "mapfn is a string");
+
+ assert.throws(TypeError, function() {
+ TA.from(arrayLike, {});
+ }, "mapfn is an ordinary object");
+
+ assert.throws(TypeError, function() {
+ TA.from(arrayLike, []);
+ }, "mapfn is an array");
+
+ assert.throws(TypeError, function() {
+ TA.from(arrayLike, true);
+ }, "mapfn is a boolean");
+
+ var s = Symbol("1");
+ assert.throws(TypeError, function() {
+ TA.from(arrayLike, s);
+ }, "mapfn is a symbol");
+
+ assert.sameValue(
+ getIterator, 0,
+ "IsCallable(mapfn) check occurs before getting source[@@iterator]"
+ );
+});