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-rw-r--r--js/src/tests/test262/built-ins/Array/prototype/filter/create-non-array.js36
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/filter/create-non-array.js b/js/src/tests/test262/built-ins/Array/prototype/filter/create-non-array.js
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+++ b/js/src/tests/test262/built-ins/Array/prototype/filter/create-non-array.js
@@ -0,0 +1,36 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.prototype.filter
+description: Constructor is ignored for non-Array values
+info: |
+ [...]
+ 5. Let A be ? ArraySpeciesCreate(O, 0).
+ [...]
+
+ 9.4.2.3 ArraySpeciesCreate
+
+ [...]
+ 3. Let isArray be ? IsArray(originalArray).
+ 4. If isArray is false, return ? ArrayCreate(length).
+---*/
+
+var obj = {
+ length: 0
+};
+var callCount = 0;
+var result;
+Object.defineProperty(obj, 'constructor', {
+ get: function() {
+ callCount += 1;
+ }
+});
+
+result = Array.prototype.filter.call(obj, function() {});
+
+assert.sameValue(callCount, 0, '`constructor` property not accessed');
+assert.sameValue(Object.getPrototypeOf(result), Array.prototype);
+assert(Array.isArray(result), 'result is an Array exotic object');
+assert.sameValue(result.length, 0, 'array created with appropriate length');
+
+reportCompare(0, 0);