1 files changed, 57 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/values/order-after-define-property.js b/js/src/tests/test262/built-ins/Object/values/order-after-define-property.js
new file mode 100644
index 0000000000..ac1da3174e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/values/order-after-define-property.js
@@ -0,0 +1,57 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-object.values
+description: >
+  Property names are returned in ascending chronological order of creation
+  that is unaffected by [[DefineOwnProperty]].
+info: |
+  Object.values ( O )
+
+  [...]
+  2. Let nameList be ? EnumerableOwnPropertyNames(obj, value).
+  3. Return CreateArrayFromList(nameList).
+
+  EnumerableOwnPropertyNames ( O, kind )
+
+  [...]
+  2. Let ownKeys be ? O.[[OwnPropertyKeys]]().
+  [...]
+
+  OrdinaryOwnPropertyKeys ( O )
+
+  [...]
+  3. For each own property key P of O that is a String but is not an array index,
+  in ascending chronological order of property creation, do
+    a. Add P as the last element of keys.
+  [...]
+  5. Return keys.
+includes: [compareArray.js]
+---*/
+
+var obj = {};
+Object.defineProperty(obj, "a", {
+  get: function() {},
+  enumerable: true,
+  configurable: true,
+});
+obj.b = "b";
+Object.defineProperty(obj, "a", {
+  get: function() {
+    return "a";
+  },
+});
+assert.compareArray(Object.values(obj), ["a", "b"]);
+
+var proxy = new Proxy({}, {});
+Object.defineProperty(proxy, "a", {
+  get: function() {},
+  enumerable: true,
+  configurable: true,
+});
+proxy.b = "b";
+Object.defineProperty(proxy, "a", {value: "a"});
+assert.compareArray(Object.values(proxy), ["a", "b"]);
+
+reportCompare(0, 0);