1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Math/floor/S15.8.2.9_A7.js b/js/src/tests/test262/built-ins/Math/floor/S15.8.2.9_A7.js
new file mode 100644
index 0000000000..d14ebc208c
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Math/floor/S15.8.2.9_A7.js
@@ -0,0 +1,24 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The value of Math.floor(x) is the same as the value of -Math.ceil(-x)
+es5id: 15.8.2.9_A7
+description: >
+    Checking if Math.floor(x) is equal to -Math.ceil(-x) on 2000
+    floating-point argument values
+---*/
+
+// CHECK#1
+for (var i = -1000; i < 1000; i++)
+{
+  var x = i / 10.0;
+
+  assert.sameValue(
+    -Math.ceil(-x),
+    Math.floor(x),
+    'The value of `-Math.ceil(-x)` must return the same value returned by Math.floor(x)'
+  );
+}
+
+reportCompare(0, 0);