1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/wait/validate-arraytype-before-timeout-coercion.js b/js/src/tests/test262/built-ins/Atomics/wait/validate-arraytype-before-timeout-coercion.js
new file mode 100644
index 0000000000..58328bc348
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/wait/validate-arraytype-before-timeout-coercion.js
@@ -0,0 +1,42 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2019 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.notify
+description: >
+  TypedArray type is validated before `timeout` argument is coerced.
+info: |
+  24.4.11 Atomics.wait ( typedArray, index, value, timeout )
+    1. Let buffer be ? ValidateSharedIntegerTypedArray(typedArray, true).
+    ...
+
+  24.4.1.1 ValidateSharedIntegerTypedArray ( typedArray [ , onlyInt32 ] )
+    ...
+    4. Let typeName be typedArray.[[TypedArrayName]].
+    5. If onlyInt32 is true, then
+      a. If typeName is not "Int32Array", throw a TypeError exception.
+    6. Else,
+      a. If typeName is not "Int8Array", "Uint8Array", "Int16Array", "Uint16Array", "Int32Array",
+         or "Uint32Array", throw a TypeError exception.
+    ...
+includes: [testTypedArray.js]
+features: [Atomics, TypedArray]
+---*/
+
+var timeout = {
+  valueOf() {
+    throw new Test262Error("timeout coerced");
+  }
+};
+
+var badArrayTypes = typedArrayConstructors.filter(function(TA) { return TA !== Int32Array; });
+
+for (var badArrayType of badArrayTypes) {
+  var typedArray = new badArrayType(new SharedArrayBuffer(8));
+  assert.throws(TypeError, function() {
+    Atomics.wait(typedArray, 0, 0, timeout);
+  });
+}
+
+reportCompare(0, 0);