mapfn-not-callable.js (1188B)
1 // |reftest| async 2 // Copyright (C) 2022 Igalia, S.L. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-array.fromasync 7 description: > 8 A TypeError is thrown if the mapfn argument to Array.fromAsync is not callable 9 info: | 10 3.a. If _mapfn_ is *undefined*, let _mapping_ be *false*. 11 b. Else, 12 i. If IsCallable(_mapfn_) is *false*, throw a *TypeError* exception. 13 flags: [async] 14 includes: [asyncHelpers.js] 15 features: [Array.fromAsync, BigInt, Symbol] 16 ---*/ 17 18 asyncTest(async () => { 19 await assert.throwsAsync(TypeError, () => Array.fromAsync([], null), "null mapfn"); 20 await assert.throwsAsync(TypeError, () => Array.fromAsync([], {}), "non-callable object mapfn"); 21 await assert.throwsAsync(TypeError, () => Array.fromAsync([], "String"), "string mapfn"); 22 await assert.throwsAsync(TypeError, () => Array.fromAsync([], true), "boolean mapfn"); 23 await assert.throwsAsync(TypeError, () => Array.fromAsync([], 3.1416), "number mapfn"); 24 await assert.throwsAsync(TypeError, () => Array.fromAsync([], 42n), "bigint mapfn"); 25 await assert.throwsAsync(TypeError, () => Array.fromAsync([], Symbol()), "symbol mapfn"); 26 });