Return unlocalized TimeZoneID from TimeZone.getTimeZone()

ISO 8601 recommends the numbers in the time zone string should be non-localized
numbers. Though implemented version returns localized numbers depends on the
default locale.
This CL removes localization from formiting the time zone ID.

Change-Id: If828bcebb13b8509f5caf4dd201a4dbcd7defc38

1 files changed, 14 insertions, 0 deletions

diff --git a/luni/src/test/java/libcore/java/util/TimeZoneTest.java b/luni/src/test/java/libcore/java/util/TimeZoneTest.java
index 4f2e38c..68e9109 100644
--- a/luni/src/test/java/libcore/java/util/TimeZoneTest.java
+++ b/luni/src/test/java/libcore/java/util/TimeZoneTest.java
@@ -310,4 +310,18 @@ public class TimeZoneTest extends TestCase {
         assertFalse(tz.inDaylightTime(new Date(2206292400000L)));
         assertEquals(-18000000, tz.getOffset(2206292400000L));
     }
+
+    public void testTimeZoneIDLocalization() {
+        Locale defaultLocale = Locale.getDefault();
+        try {
+            Locale.setDefault(new Locale("en"));
+            TimeZone en_timezone = TimeZone.getTimeZone("GMT+09:00");
+            Locale.setDefault(new Locale("ar"));
+            TimeZone ar_timezone = TimeZone.getTimeZone("GMT+09:00");
+
+            assertEquals(en_timezone.getID(), ar_timezone.getID());
+        } finally {
+            Locale.setDefault(defaultLocale);
+        }
+    }
 }