1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/includes/searchstring-found-with-position.js b/js/src/tests/test262/built-ins/String/prototype/includes/searchstring-found-with-position.js
new file mode 100644
index 0000000000..26907b4bd4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/includes/searchstring-found-with-position.js
@@ -0,0 +1,33 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 21.1.3.7
+description: >
+  Returns true if searchString appears as a substring of the given string with a
+  given position.
+info: |
+  21.1.3.7 String.prototype.includes ( searchString [ , position ] )
+
+  ...
+  11. Let len be the number of elements in S.
+  12. Let start be min(max(pos, 0), len).
+  13. Let searchLen be the number of elements in searchStr.
+  14. If there exists any integer k not smaller than start such that k +
+  searchLen is not greater than len, and for all nonnegative integers j less
+  than searchLen, the code unit at index k+j of S is the same as the code unit
+  at index j of searchStr, return true; but if there is no such integer k,
+  return false.
+  ...
+features: [String.prototype.includes]
+---*/
+
+var str = 'The future is cool!';
+
+assert(
+  str.includes('The future', 0),
+  'Returns true for str.includes("The future", 0)'
+);
+assert(str.includes(' is ', 1), 'Returns true for str.includes(" is ", 1)');
+assert(str.includes('cool!', 10), 'Returns true for str.includes("cool!", 10)');
+
+reportCompare(0, 0);