Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-14.js b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-14.js
new file mode 100644
index 0000000000..f84d14edad
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-14.js
@@ -0,0 +1,41 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Step 4 of defineProperty calls the [[DefineOwnProperty]] internal method
+    of O to define the property. For configurable properties, step 9b of
+    [[DefineOwnProperty]] permits changing the kind of a property.
+es5id: 15.2.3.6-4-14
+description: >
+    Object.defineProperty permits changing data property to accessor
+    property for configurable properties
+---*/
+
+var o = {};
+
+// create a data property. In this case,
+// [[Enumerable]] and [[Configurable]] are true
+o["foo"] = 101;
+
+// changing "foo" to be an accessor should succeed, since [[Configurable]]
+// on the original property will be true. Existing values of [[Configurable]]
+// and [[Enumerable]] need to be preserved and the rest need to be set to
+// their default values
+
+// dummy getter
+var getter = function() {
+  return 1;
+}
+var d1 = {
+  get: getter
+};
+Object.defineProperty(o, "foo", d1);
+
+var d2 = Object.getOwnPropertyDescriptor(o, "foo");
+
+assert.sameValue(d2.get, getter, 'd2.get');
+assert.sameValue(d2.enumerable, true, 'd2.enumerable');
+assert.sameValue(d2.configurable, true, 'd2.configurable');
+
+reportCompare(0, 0);