FYI: PR27343 (lack of side effect in Calandar.setTimeZone) regression test

[Olivier Jolly <olivier dot jolly at pcedev dot com>]

Hi,
 I committed this patch, based on the junit test proposed on bugzilla 
by KiYun Roe, to ensure non regression on this problem.
 Cheers
+Olivier

2006-05-01  Olivier Jolly  <olivier.jolly@pcedev.com>

   * gnu/testlet/java/util/Calendar/TimeZone.java: New test.

Index: TimeZone.java
===================================================================
RCS file: TimeZone.java
diff -N TimeZone.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ TimeZone.java	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,52 @@
+/* TimeZone.java -- Regression test case for ensuring that setting timezone 
+   recalculate field content
+   Copyright (C) 2006 Olivier Jolly <olivier.jolly@pcedev.com>
+This file is part of Mauve.
+
+Mauve 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 2, or (at your option)
+any later version.
+
+Mauve 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 Mauve; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+*/
+
+// Tags: JDK1.1
+
+package gnu.testlet.java.util.Calendar;
+
+import gnu.testlet.TestHarness;
+import gnu.testlet.Testlet;
+
+/**
+ * Tests based on KiYun Roe bug report (PR 27343 in classpath bugzilla), which
+ * ensures that when the timezone is changed, fields of the calendar are
+ * recomputed
+ * @author KiYun Roe <kiyun.roe@active-endpoints.com>
+ * @author Olivier Jolly <olivier.jolly@pcedev.com>
+ */
+public class TimeZone implements Testlet
+{
+
+  public void test(TestHarness harness)
+  {
+    java.util.Calendar cal = java.util.Calendar.getInstance();
+    cal.setTimeZone(java.util.TimeZone.getTimeZone("GMT+0"));
+    cal.setTime(new java.util.Date());
+    int hour1 = cal.get(java.util.Calendar.HOUR_OF_DAY);
+    cal.setTimeZone(java.util.TimeZone.getTimeZone("GMT-5"));
+    int hour2 = cal.get(java.util.Calendar.HOUR_OF_DAY);
+    int delta = (hour1 - hour2 + 24) % 24;
+    harness.check(delta, 5, "Check side effect of timezone setting");
+  }
+
+}