1 files changed, 90 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/includes/tolength-length.js b/js/src/tests/test262/built-ins/Array/prototype/includes/tolength-length.js
new file mode 100644
index 0000000000..a2a2fec104
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/includes/tolength-length.js
@@ -0,0 +1,90 @@
+// 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 value coerced on ToLength
+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 253-1.
+  4. Return min(len, 253-1).
+features: [Array.prototype.includes]
+---*/
+
+var obj = {
+  "0": "a",
+  "1": "b"
+};
+
+obj.length = 0.1;
+assert.sameValue([].includes.call(obj, "a"), false, "0.1");
+
+obj.length = 0.99;
+assert.sameValue([].includes.call(obj, "a"), false, "0.99");
+
+obj.length = 1.00001;
+assert.sameValue([].includes.call(obj, "a"), true, "1.00001");
+
+obj.length = 1.1;
+assert.sameValue([].includes.call(obj, "a"), true, "1.1");
+
+obj.length = "0";
+assert.sameValue([].includes.call(obj, "a"), false, "string '0'");
+
+obj.length = "1";
+assert.sameValue([].includes.call(obj, "a"), true, "string '1', item found");
+
+obj.length = "1";
+assert.sameValue([].includes.call(obj, "b"), false, "string '1', item not found");
+
+obj.length = "2";
+assert.sameValue([].includes.call(obj, "b"), true, "string '2', item found");
+
+obj.length = "";
+assert.sameValue([].includes.call(obj, "a"), false, "the empty string");
+
+obj.length = undefined;
+assert.sameValue([].includes.call(obj, "a"), false, "undefined");
+
+obj.length = NaN;
+assert.sameValue([].includes.call(obj, "a"), false, "NaN");
+
+obj.length = [];
+assert.sameValue([].includes.call(obj, "a"), false, "[]");
+
+obj.length = [1];
+assert.sameValue([].includes.call(obj, "a"), true, "[1]");
+
+obj.length = null;
+assert.sameValue([].includes.call(obj, "a"), false, "null");
+
+obj.length = false;
+assert.sameValue([].includes.call(obj, "a"), false, "false");
+
+obj.length = true;
+assert.sameValue([].includes.call(obj, "a"), true, "true");
+
+obj.length = {
+  valueOf: function() {
+    return 2;
+  }
+};
+assert.sameValue([].includes.call(obj, "b"), true, "ordinary object.valueOf");
+
+obj.length = {
+  toString: function() {
+    return 2;
+  }
+};
+assert.sameValue([].includes.call(obj, "b"), true, "ordinary object.toString");
+
+reportCompare(0, 0);