1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/endsWith/coerced-values-of-position.js b/js/src/tests/test262/built-ins/String/prototype/endsWith/coerced-values-of-position.js
new file mode 100644
index 0000000000..5b8ce9acd7
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/endsWith/coerced-values-of-position.js
@@ -0,0 +1,39 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 21.1.3.6
+description: >
+  Returns based on coerced values of endPosition.
+info: |
+  21.1.3.6 String.prototype.endsWith ( searchString [ , endPosition] )
+
+  ...
+  10. If endPosition is undefined, let pos be len, else let pos be
+  ToInteger(endPosition).
+  11. ReturnIfAbrupt(pos).
+  12. Let end be min(max(pos, 0), len).
+  13. Let searchLength be the number of elements in searchStr.
+  14. Let start be end - searchLength.
+  15. If start is less than 0, return false.
+  16. If the sequence of elements of S starting at start of length searchLength
+  is the same as the full element sequence of searchStr, return true.
+  17. Otherwise, return false.
+  ...
+features: [String.prototype.endsWith]
+---*/
+
+var str = 'The future is cool!';
+
+assert(str.endsWith('', NaN), 'NaN coerced to 0');
+assert(str.endsWith('', null), 'null coerced to 0');
+assert(str.endsWith('', false), 'false coerced to 0');
+assert(str.endsWith('', ''), '"" coerced to 0');
+assert(str.endsWith('', '0'), '"0" coerced to 0');
+assert(str.endsWith('', undefined), 'undefined coerced to 0');
+
+assert(str.endsWith('The future', 10.4), '10.4 coerced to 10');
+assert(str.endsWith('T', true), 'true coerced to 1');
+
+assert(str.endsWith('The future', '10'), '"10" coerced to 10');
+
+reportCompare(0, 0);