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-rw-r--r--js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_array-like-string-length.js35
1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_array-like-string-length.js b/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_array-like-string-length.js
new file mode 100644
index 0000000000..1aa0191efd
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_array-like-string-length.js
@@ -0,0 +1,35 @@
+// Copyright (c) 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.concat
+description: Array.prototype.concat array like string length
+includes: [compareArray.js]
+features: [Symbol.isConcatSpreadable]
+---*/
+var obj = {
+ "length": "6",
+ "1": "A",
+ "3": "B",
+ "5": "C"
+};
+obj[Symbol.isConcatSpreadable] = true;
+var obj2 = {
+ length: 3,
+ "0": "0",
+ "1": "1",
+ "2": "2"
+};
+var arr = ["X", "Y", "Z"];
+
+var expected = [
+ void 0, "A", void 0, "B", void 0, "C",
+ obj2,
+ "X", "Y", "Z"
+];
+var actual = Array.prototype.concat.call(obj, obj2, arr);
+
+assert.compareArray(actual, expected, 'The value of actual is expected to equal the value of expected');
+
+reportCompare(0, 0);