1/*
2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 * questions.
24 */
25package test.java.time.chrono;
26
27import java.time.Duration;
28import java.time.chrono.Chronology;
29import java.time.chrono.HijrahChronology;
30import java.time.chrono.HijrahDate;
31import java.time.temporal.ChronoUnit;
32import java.util.Set;
33
34import org.testng.annotations.Test;
35
36/**
37 * Test the speed of initializing all calendars.
38 */
39public class TestChronologyPerf {
40
41    @Test
42    public void test_chronologyGetAvailablePerf() {
43        long start = System.nanoTime();
44        Set<Chronology> chronos = Chronology.getAvailableChronologies();
45        long end = System.nanoTime();
46        Duration d = Duration.of(end - start, ChronoUnit.NANOS);
47        System.out.printf(" Cold Duration of Chronology.getAvailableChronologies(): %s%n", d);
48
49        start = System.nanoTime();
50        chronos = Chronology.getAvailableChronologies();
51        end = System.nanoTime();
52        d = Duration.of(end - start, ChronoUnit.NANOS);
53        System.out.printf(" Warm Duration of Chronology.getAvailableChronologies(): %s%n", d);
54
55        start = System.nanoTime();
56        HijrahChronology.INSTANCE.date(1434, 1, 1);
57        end = System.nanoTime();
58        d = Duration.of(end - start, ChronoUnit.NANOS);
59        System.out.printf(" Warm Duration of HijrahDate.date(1434, 1, 1): %s%n", d);
60    }
61
62}
63