1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Math/acos/S15.8.2.2_A2.js b/js/src/tests/test262/built-ins/Math/acos/S15.8.2.2_A2.js
new file mode 100644
index 0000000000..fe1c9883b7
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Math/acos/S15.8.2.2_A2.js
@@ -0,0 +1,14 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: If x is greater than 1, Math.acos(x) is NaN
+es5id: 15.8.2.2_A2
+description: Checking if Math.acos(x) is NaN, where x is greater than 1
+---*/
+
+assert.sameValue(Math.acos(1.000000000000001), NaN, "1.000000000000001");
+assert.sameValue(Math.acos(2), NaN, "2");
+assert.sameValue(Math.acos(Infinity), NaN, "Infinity");
+
+reportCompare(0, 0);