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-rw-r--r--js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js37
1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js b/js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js
new file mode 100644
index 0000000000..b54da632c6
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js
@@ -0,0 +1,37 @@
+// 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: handle Infinity values for fromIndex
+info: |
+ 22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
+
+ ...
+ 4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step
+ produces the value 0.)
+ 5. If n ≥ 0, then
+ a. Let k be n.
+ 6. Else n < 0,
+ a. Let k be len + n.
+ b. If k < 0, let k be 0.
+ 7. Repeat, while k < len
+ ...
+ 8. Return false.
+features: [Array.prototype.includes]
+---*/
+
+var sample = [42, 43, 43, 41];
+
+assert.sameValue(
+ sample.includes(43, Infinity),
+ false,
+ "includes(43, Infinity)"
+);
+assert.sameValue(
+ sample.includes(43, -Infinity),
+ true,
+ "includes(43, -Infinity)"
+);
+
+reportCompare(0, 0);