1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/mapfn-not-callable.js b/js/src/tests/test262/built-ins/Array/fromAsync/mapfn-not-callable.js
new file mode 100644
index 0000000000..37edf0a479
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/fromAsync/mapfn-not-callable.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-array-from-async) skip-if(!Array.fromAsync||!xulRuntime.shell) async -- Array.fromAsync is not enabled unconditionally, requires shell-options
+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.fromasync
+description: >
+  A TypeError is thrown if the mapfn argument to Array.fromAsync is not callable
+info: |
+  3.a. If _mapfn_ is *undefined*, let _mapping_ be *false*.
+    b. Else,
+      i. If IsCallable(_mapfn_) is *false*, throw a *TypeError* exception.
+flags: [async]
+includes: [asyncHelpers.js]
+features: [Array.fromAsync, BigInt, Symbol]
+---*/
+
+asyncTest(async () => {
+  await assert.throwsAsync(TypeError, () => Array.fromAsync([], null), "null mapfn");
+  await assert.throwsAsync(TypeError, () => Array.fromAsync([], {}), "non-callable object mapfn");
+  await assert.throwsAsync(TypeError, () => Array.fromAsync([], "String"), "string mapfn");
+  await assert.throwsAsync(TypeError, () => Array.fromAsync([], true), "boolean mapfn");
+  await assert.throwsAsync(TypeError, () => Array.fromAsync([], 3.1416), "number mapfn");
+  await assert.throwsAsync(TypeError, () => Array.fromAsync([], 42n), "bigint mapfn");
+  await assert.throwsAsync(TypeError, () => Array.fromAsync([], Symbol()), "symbol mapfn");
+});