1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/includes/fromIndex-minus-zero.js b/js/src/tests/test262/built-ins/TypedArray/prototype/includes/fromIndex-minus-zero.js
new file mode 100644
index 0000000000..0bb301447f
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/includes/fromIndex-minus-zero.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-%typedarray%.prototype.includes
+description: -0 fromIndex becomes 0
+info: |
+  22.2.3.13 %TypedArray%.prototype.includes ( searchElement [ , fromIndex ] )
+
+  %TypedArray%.prototype.includes is a distinct function that implements the
+  same algorithm as Array.prototype.includes as defined in 22.1.3.11 except that
+  the this object's [[ArrayLength]] internal slot is accessed in place of
+  performing a [[Get]] of "length".
+
+  22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
+
+  ...
+  5. If n ≥ 0, then
+    a. Let k be n.
+  ...
+  7. Repeat, while k < len
+  ...
+includes: [testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample;
+
+  sample = new TA([42, 43]);
+  assert.sameValue(sample.includes(42, -0), true, "-0 [0]");
+  assert.sameValue(sample.includes(43, -0), true, "-0 [1]");
+  assert.sameValue(sample.includes(44, -0), false, "-0 [2]");
+});
+
+reportCompare(0, 0);