Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 45 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Array/prototype/concat/create-species-with-non-configurable-property.js b/js/src/tests/test262/built-ins/Array/prototype/concat/create-species-with-non-configurable-property.js
new file mode 100644
index 0000000000..cbb724f417
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/concat/create-species-with-non-configurable-property.js
@@ -0,0 +1,45 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.concat
+description: >
+  TypeError is thrown if CreateDataProperty fails.
+  (result object's "0" is non-configurable, argument is non-spreadable)
+info: |
+  Array.prototype.concat ( ...arguments )
+
+  [...]
+  5. Repeat, while items is not empty
+    [...]
+    c. If spreadable is true, then
+      [...]
+    d. Else,
+      [...]
+      iii. Perform ? CreateDataPropertyOrThrow(A, ! ToString(n), E).
+    [...]
+
+  CreateDataPropertyOrThrow ( O, P, V )
+
+  [...]
+  3. Let success be ? CreateDataProperty(O, P, V).
+  4. If success is false, throw a TypeError exception.
+features: [Symbol.species]
+---*/
+
+var A = function(_length) {
+  Object.defineProperty(this, "0", {
+    set: function(_value) {},
+    configurable: false,
+  });
+};
+
+var arr = [];
+arr.constructor = {};
+arr.constructor[Symbol.species] = A;
+
+assert.throws(TypeError, function() {
+  arr.concat(1);
+}, 'arr.concat(1) throws a TypeError exception');
+
+reportCompare(0, 0);