/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.util;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.TestUtil;
import java.util.Set;
import java.util.HashSet;
import java.util.Random;
import java.util.TimeZone;
import java.util.Locale;
public class TimeZoneUtilsTest extends LuceneTestCase {
private static void assertSameRules(final String label,
final TimeZone expected,
final TimeZone actual) {
if (null == expected && null == actual) return;
assertNotNull(label + ": expected is null", expected);
assertNotNull(label + ": actual is null", actual);
final boolean same = expected.hasSameRules(actual);
assertTrue(label + ": " + expected.toString() + " [[NOT SAME RULES]] " +
actual.toString(),
same);
}
public void testValidIds() throws Exception {
final Set<String> idsTested = new HashSet<>();
// brain dead: anything the JVM supports, should work
for (String validId : TimeZone.getAvailableIDs()) {
assertTrue(validId + " not found in list of known ids",
TimeZoneUtils.KNOWN_TIMEZONE_IDS.contains(validId));
final TimeZone expected = TimeZone.getTimeZone(validId);
final TimeZone actual = TimeZoneUtils.getTimeZone(validId);
assertSameRules(validId, expected, actual);
idsTested.add(validId);
}
assertEquals("TimeZone.getAvailableIDs vs TimeZoneUtils.KNOWN_TIMEZONE_IDS",
TimeZoneUtils.KNOWN_TIMEZONE_IDS.size(), idsTested.size());
}
public void testCustom() throws Exception {
for (String input : new String[] {"GMT-00", "GMT+00", "GMT-0", "GMT+0",
"GMT+08","GMT+8", "GMT-08","GMT-8",
"GMT+0800","GMT+08:00",
"GMT-0800","GMT-08:00",
"GMT+23", "GMT+2300",
"GMT-23", "GMT-2300"}) {
assertSameRules(input,
TimeZone.getTimeZone(input),
TimeZoneUtils.getTimeZone(input));
}
}
public void testStupidIKnowButIDontTrustTheJVM() throws Exception {
for (String input : new String[] {"GMT-00", "GMT+00", "GMT-0", "GMT+0",
"GMT+08","GMT+8", "GMT-08","GMT-8",
"GMT+0800","GMT+08:00",
"GMT-0800","GMT-08:00",
"GMT+23", "GMT+2300",
"GMT-23", "GMT-2300"}) {
assertSameRules(input,
TimeZone.getTimeZone(input),
TimeZone.getTimeZone(input));
}
}
public void testInvalidInput() throws Exception {
final String giberish = "giberish";
assumeFalse("This test assumes that " + giberish + " is not a valid tz id",
TimeZoneUtils.KNOWN_TIMEZONE_IDS.contains(giberish));
assertNull(giberish, TimeZoneUtils.getTimeZone(giberish));
for (String malformed : new String[] {"GMT+72", "GMT0800",
"GMT+2400" , "GMT+24:00",
"GMT+11-30" , "GMT+11:-30",
"GMT+0080" , "GMT+00:80"}) {
assertNull(malformed, TimeZoneUtils.getTimeZone(malformed));
}
}
public void testRandom() throws Exception {
final String ONE_DIGIT = "%1d";
final String TWO_DIGIT = "%02d";
final Random r = random();
final int iters = atLeast(r, 50);
for (int i = 0; i <= iters; i++) {
int hour = TestUtil.nextInt(r, 0, 23);
int min = TestUtil.nextInt(r, 0, 59);
String hours = String.format(Locale.ROOT,
(r.nextBoolean() ? ONE_DIGIT : TWO_DIGIT),
hour);
String mins = String.format(Locale.ROOT, TWO_DIGIT, min);
String input = "GMT" + (r.nextBoolean()?"+":"-")
+ hours + (r.nextBoolean() ? "" : ((r.nextBoolean()?":":"") + mins));
assertSameRules(input,
TimeZone.getTimeZone(input),
TimeZoneUtils.getTimeZone(input));
}
}
}