summaryrefslogtreecommitdiffstats
path: root/js/src/tests/js1_5/Regress/regress-329383.js
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/tests/js1_5/Regress/regress-329383.js')
-rw-r--r--js/src/tests/js1_5/Regress/regress-329383.js83
1 files changed, 83 insertions, 0 deletions
diff --git a/js/src/tests/js1_5/Regress/regress-329383.js b/js/src/tests/js1_5/Regress/regress-329383.js
new file mode 100644
index 000000000..00c7260ca
--- /dev/null
+++ b/js/src/tests/js1_5/Regress/regress-329383.js
@@ -0,0 +1,83 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 329383;
+var summary = 'Math copysign issues';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+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');