Regression test for bug 329383, by Brendan Eich

2025-01-13 15:34:01 +00:00 · 2006-03-07 23:50:49 +00:00 · 2006-03-07 23:50:49 +00:00 · d9589981d2
commit d9589981d2
parent 938a0e94ac
1 changed files with 114 additions and 0 deletions
--- a/js/tests/js1_5/Regress/regress-329383.js
+++ b/js/tests/js1_5/Regress/regress-329383.js
@ -0,0 +1,114 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is JavaScript Engine testing utilities.
+ *
+ * The Initial Developer of the Original Code is
+ * Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2006
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s): Brendan Eich
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+//-----------------------------------------------------------------------------
+var bug = 328769;
+var summary = 'Math copysign issues';
+var actual = '';
+var expect = '';
+
+printBugNumber (bug);
+printStatus (summary);
+
+var inputs = [
+  -Infinity,
+  -10.01,
+  -9.01,
+  -8.01,
+  -7.01,
+  -6.01,
+  -5.01,
+  -4.01,
+  -Math.PI,
+  -3.01,
+  -2.01,
+  -1.01,
+  -0.5,
+  -0.49,
+  -0.01,
+  -0,
+  0,
+  +0,
+  0.01,
+  0.49,
+  0.50,
+  0,
+  1.01,
+  2.01,
+  3.01,
+  Math.PI,
+  4.01,
+  5.01,
+  6.01,
+  7.01,
+  8.01,
+  9.01,
+  10.01,
+  Infinity
+];
+
+var iinput;
+
+for (iinput = 0; iinput < inputs.length; iinput++)
+{
+  var input = inputs[iinput];
+  reportCompare(Math.round(input), 
+                emulateRound(input), 
+                summary + ': Math.round(' + input + ')');
+}
+
+reportCompare(isNaN(Math.round(NaN)), 
+              isNaN(emulateRound(NaN)), 
+              summary + ': Math.round(' + input + ')');
+
+function emulateRound(x)
+{
+  if (!isFinite(x) || x === 0) return x
+  if (-0.5 <= x && x < 0) return -0
+  return Math.floor(x + 0.5)
+}
+
+var z;
+
+z = Math.min(-0, 0);
+
+reportCompare(-Math.PI, Math.atan2(z, z), summary + ': Math.atan2(-0, -0)');
+reportCompare(-Infinity, 1/z, summary + ': 1/-0');
+
+z = Math.max(-0, 0);
+
+reportCompare(0, Math.atan2(z, z), summary + ': Math.atan2(0, 0)');
+reportCompare(Infinity, 1/z, summary + ': 1/0');