1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/prs/3994/built-ins/Uint8Array/prototype/setFromHex/string-coercion.js b/js/src/tests/test262/prs/3994/built-ins/Uint8Array/prototype/setFromHex/string-coercion.js
new file mode 100644
index 0000000000..9a6f5f84c0
--- /dev/null
+++ b/js/src/tests/test262/prs/3994/built-ins/Uint8Array/prototype/setFromHex/string-coercion.js
@@ -0,0 +1,24 @@
+// |reftest| shell-option(--enable-uint8array-base64) skip-if(!Uint8Array.fromBase64||!xulRuntime.shell) -- uint8array-base64 is not enabled unconditionally, requires shell-options
+// Copyright (C) 2024 Kevin Gibbons. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-uint8array.prototype.setfromhex
+description: Uint8Array.prototype.setFromHex throws if its first argument is not a string
+features: [uint8array-base64, TypedArray]
+---*/
+
+var toStringCalls = 0;
+var throwyToString = {
+  toString: function() {
+    toStringCalls += 1;
+    throw new Test262Error("toString called");
+  }
+};
+
+assert.throws(TypeError, function() {
+  var target = new Uint8Array(10);
+  target.setFromHex(throwyToString);
+});
+assert.sameValue(toStringCalls, 0);
+
+reportCompare(0, 0);