1 files changed, 85 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/includes/length-boundaries.js b/js/src/tests/test262/built-ins/Array/prototype/includes/length-boundaries.js
new file mode 100644
index 0000000000..56811d9ca8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/includes/length-boundaries.js
@@ -0,0 +1,85 @@
+// 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.includes
+description: length boundaries from ToLength operation
+info: |
+  22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
+
+  ...
+  2. Let len be ? ToLength(? Get(O, "length")).
+  ...
+
+  7.1.15 ToLength ( argument )
+
+  1. Let len be ? ToInteger(argument).
+  2. If len ≤ +0, return +0.
+  3. If len is +∞, return 2**53-1.
+  4. Return min(len, 2**53-1).
+features: [Array.prototype.includes]
+---*/
+
+var obj = {
+  "0": "a",
+  "1": "b",
+  "9007199254740990": "c", // 2 ** 53 - 2
+  "9007199254740991": "d", // 2 ** 53 - 1
+  "9007199254740992": "e", // 2 ** 53
+};
+
+obj.length = -0;
+assert.sameValue([].includes.call(obj, "a"), false, "-0");
+
+obj.length = -1;
+assert.sameValue([].includes.call(obj, "a"), false, "-1");
+
+obj.length = -0.1;
+assert.sameValue([].includes.call(obj, "a"), false, "-0.1");
+
+obj.length = -Infinity;
+assert.sameValue([].includes.call(obj, "a"), false, "-Infinity");
+
+var fromIndex = 9007199254740990;
+
+obj.length = 9007199254740991;
+assert.sameValue(
+  [].includes.call(obj, "c", fromIndex),
+  true,
+  "2**53-1, found value at 2**53-2"
+);
+
+obj.length = 9007199254740991;
+assert.sameValue(
+  [].includes.call(obj, "d", fromIndex),
+  false,
+  "2**53-1, ignores indexes >= 2**53-1"
+);
+
+obj.length = 9007199254740992;
+assert.sameValue(
+  [].includes.call(obj, "d", fromIndex),
+  false,
+  "2**53, ignores indexes >= 2**53-1"
+);
+
+obj.length = 9007199254740993;
+assert.sameValue(
+  [].includes.call(obj, "d", fromIndex),
+  false,
+  "2**53+1, ignores indexes >= 2**53-1"
+);
+
+obj.length = Infinity;
+assert.sameValue(
+  [].includes.call(obj, "c", fromIndex),
+  true,
+  "Infinity, found item"
+);
+assert.sameValue(
+  [].includes.call(obj, "d", fromIndex),
+  false,
+  "Infinity, ignores indexes >= 2**53-1"
+);
+
+reportCompare(0, 0);