1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/hasOwn/toobject_before_topropertykey.js b/js/src/tests/test262/built-ins/Object/hasOwn/toobject_before_topropertykey.js
new file mode 100644
index 0000000000..6552617f03
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/hasOwn/toobject_before_topropertykey.js
@@ -0,0 +1,50 @@
+// Copyright (C) 2021 Jamie Kyle.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.hasown
+description: >
+  ToObject is performed before ToPropertyKey.
+info: |
+  Object.hasOwn ( _O_, _P_ )
+
+  1. Let _obj_ be ? ToObject(_O_).
+  2. Let _key_ be ? ToPropertyKey(_P_).
+
+  ToPropertyKey ( argument )
+
+  1. Let key be ? ToPrimitive(argument, hint String).
+author: Jamie Kyle
+features: [Symbol.toPrimitive, Object.hasOwn]
+---*/
+
+var callCount1 = 0;
+var coercibleKey1 = {
+  get toString() {
+    callCount1++;
+    throw new Test262Error();
+  },
+  get valueOf() {
+    callCount1++;
+    throw new Test262Error();
+  },
+};
+
+assert.throws(TypeError, function() {
+  Object.hasOwn(null, coercibleKey1);
+});
+assert.sameValue(callCount1, 0, "toString and valueOf must not be called");
+
+
+var callCount2 = 0;
+var coercibleKey2 = {};
+coercibleKey2[Symbol.toPrimitive] = function() {
+  callCount2++;
+  throw new Test262Error();
+};
+
+assert.throws(TypeError, function() {
+  Object.hasOwn(undefined, coercibleKey2);
+});
+assert.sameValue(callCount2, 0, "Symbol.toPrimitive must not be called");
+
+reportCompare(0, 0);