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diff --git a/tests/dimension/numeric.pov b/tests/dimension/numeric.pov
index df850d6..e9d0eae 100644
--- a/tests/dimension/numeric.pov
+++ b/tests/dimension/numeric.pov
@@ -1,2 +1,27 @@
+/*************************************************************************
+ * Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
+ * *
+ * This file is part of The Dimension Test Suite. *
+ * *
+ * The Dimension Test Suite is free software; you can redistribute it *
+ * and/or modify it under the terms of the GNU General Public License as *
+ * published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version. *
+ * *
+ * The Dimension Test Suite is distributed in the hope that it will be *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
+ * General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+// Test that we correctly tokenize numeric values. Note that the `-' in `-1',
+// for example, is a separate token and not part of the number.
+
+// Integers:
1 123456789 01234567 0x123456789 -0x01
+
+// Floats:
.1 0.1 1.0 0.123456789 -0.123456789