1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/internals/HasProperty/BigInt/key-is-lower-than-zero.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/internals/HasProperty/BigInt/key-is-lower-than-zero.js
new file mode 100644
index 0000000000..e445238631
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/internals/HasProperty/BigInt/key-is-lower-than-zero.js
@@ -0,0 +1,30 @@
+// 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-integer-indexed-exotic-objects-hasproperty-p
+description: Return false if P's value is < 0
+info: |
+  9.4.5.2 [[HasProperty]](P)
+
+  ...
+  3. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+      ...
+      iii. If ! IsValidIntegerIndex(O, numericIndex) is false, return false.
+  ...
+includes: [testBigIntTypedArray.js]
+features: [align-detached-buffer-semantics-with-web-reality, BigInt, Reflect, TypedArray]
+---*/
+
+
+// Prevents false positives using OrdinaryHasProperty
+TypedArray.prototype[-1] = "test262";
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(1);
+
+  assert.sameValue(Reflect.has(sample, "-1"), false, 'Reflect.has(sample, "-1") must return false');
+});
+
+reportCompare(0, 0);