Adding upstream version 115.7.0esr.upstream/115.7.0esr

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

1 files changed, 55 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Object/assign/target-is-non-extensible-property-creation-throws.js b/js/src/tests/test262/built-ins/Object/assign/target-is-non-extensible-property-creation-throws.js
new file mode 100644
index 0000000000..cbc5dda75e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/assign/target-is-non-extensible-property-creation-throws.js
@@ -0,0 +1,55 @@
+// Copyright (C) 2021 Alexey Shvayka. All rights reserved.
+// This code is governed by the license found in the LICENSE file.
+
+/*---
+esid: sec-object.assign
+description: >
+  [[Set]] to non-existing property of non-extensible `target` fails with TypeError.
+info: |
+  Object.assign ( target, ...sources )
+
+  [...]
+  3. For each element nextSource of sources, do
+    a. If nextSource is neither undefined nor null, then
+      [...]
+      iii. For each element nextKey of keys, do
+        1. Let desc be ? from.[[GetOwnProperty]](nextKey).
+        2. If desc is not undefined and desc.[[Enumerable]] is true, then
+          [...]
+          b. Perform ? Set(to, nextKey, propValue, true).
+
+  OrdinarySetWithOwnDescriptor ( O, P, V, Receiver, ownDesc )
+
+  [...]
+  3. If IsDataDescriptor(ownDesc) is true, then
+    [...]
+    c. Let existingDescriptor be ? Receiver.[[GetOwnProperty]](P).
+    d. If existingDescriptor is not undefined, then
+      [...]
+    e. Else,
+      i. Assert: Receiver does not currently have a property P.
+      ii. Return ? CreateDataProperty(Receiver, P, V).
+
+  ValidateAndApplyPropertyDescriptor ( O, P, extensible, Desc, current )
+
+  [...]
+  2. If current is undefined, then
+    a. If extensible is false, return false.
+features: [Symbol]
+---*/
+
+var target1 = Object.preventExtensions({ foo: 1 });
+
+assert.throws(TypeError, function() {
+  Object.assign(target1, { get bar() {} });
+});
+
+
+var target2 = {};
+
+Object.preventExtensions(target2);
+assert.throws(TypeError, function() {
+  Object.assign(target2, { [Symbol()]: 1 });
+});
+
+reportCompare(0, 0);