1/*
2 * Copyright (c) 2012, 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.
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25
26/*
27 * Copyright (c) 2008-2012, Stephen Colebourne & Michael Nascimento Santos
28 *
29 * All rights reserved.
30 *
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions are met:
33 *
34 *  * Redistributions of source code must retain the above copyright notice,
35 *    this list of conditions and the following disclaimer.
36 *
37 *  * Redistributions in binary form must reproduce the above copyright notice,
38 *    this list of conditions and the following disclaimer in the documentation
39 *    and/or other materials provided with the distribution.
40 *
41 *  * Neither the name of JSR-310 nor the names of its contributors
42 *    may be used to endorse or promote products derived from this software
43 *    without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
46 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
47 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
48 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
49 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
50 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
51 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
52 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
53 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
54 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
55 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 */
57package test.java.time.chrono;
58
59import static org.testng.Assert.assertEquals;
60import static org.testng.Assert.assertTrue;
61
62import java.time.LocalDate;
63import java.time.LocalDateTime;
64import java.time.chrono.ChronoLocalDate;
65import java.time.chrono.ChronoLocalDateTime;
66import java.time.chrono.Chronology;
67import java.time.chrono.ThaiBuddhistChronology;
68import java.time.chrono.ThaiBuddhistDate;
69import java.time.temporal.ChronoUnit;
70import java.util.ArrayList;
71import java.util.Collections;
72import java.util.List;
73
74import org.testng.annotations.Test;
75
76/**
77 * Test chrono local date.
78 */
79@Test
80public class TestChronoLocalDate {
81    // this class primarily tests whether the generics work OK
82
83    //-----------------------------------------------------------------------
84    public void test_date_comparator_checkGenerics_ISO() {
85        List<ChronoLocalDate> dates = new ArrayList<>();
86        ChronoLocalDate date = LocalDate.of(2013, 1, 1);
87
88        // Insert dates in order, no duplicates
89        dates.add(date.minus(10, ChronoUnit.YEARS));
90        dates.add(date.minus(1, ChronoUnit.YEARS));
91        dates.add(date.minus(1, ChronoUnit.MONTHS));
92        dates.add(date.minus(1, ChronoUnit.WEEKS));
93        dates.add(date.minus(1, ChronoUnit.DAYS));
94        dates.add(date);
95        dates.add(date.plus(1, ChronoUnit.DAYS));
96        dates.add(date.plus(1, ChronoUnit.WEEKS));
97        dates.add(date.plus(1, ChronoUnit.MONTHS));
98        dates.add(date.plus(1, ChronoUnit.YEARS));
99        dates.add(date.plus(10, ChronoUnit.YEARS));
100
101        List<ChronoLocalDate> copy = new ArrayList<>(dates);
102        Collections.shuffle(copy);
103        Collections.sort(copy, ChronoLocalDate.timeLineOrder());
104        assertEquals(copy, dates);
105        assertTrue(ChronoLocalDate.timeLineOrder().compare(copy.get(0), copy.get(1)) < 0);
106    }
107
108    public void test_date_comparator_checkGenerics_LocalDate() {
109        List<LocalDate> dates = new ArrayList<>();
110        LocalDate date = LocalDate.of(2013, 1, 1);
111
112        // Insert dates in order, no duplicates
113        dates.add(date.minus(10, ChronoUnit.YEARS));
114        dates.add(date.minus(1, ChronoUnit.YEARS));
115        dates.add(date.minus(1, ChronoUnit.MONTHS));
116        dates.add(date.minus(1, ChronoUnit.WEEKS));
117        dates.add(date.minus(1, ChronoUnit.DAYS));
118        dates.add(date);
119        dates.add(date.plus(1, ChronoUnit.DAYS));
120        dates.add(date.plus(1, ChronoUnit.WEEKS));
121        dates.add(date.plus(1, ChronoUnit.MONTHS));
122        dates.add(date.plus(1, ChronoUnit.YEARS));
123        dates.add(date.plus(10, ChronoUnit.YEARS));
124
125        List<LocalDate> copy = new ArrayList<>(dates);
126        Collections.shuffle(copy);
127        Collections.sort(copy, ChronoLocalDate.timeLineOrder());
128        assertEquals(copy, dates);
129        assertTrue(ChronoLocalDate.timeLineOrder().compare(copy.get(0), copy.get(1)) < 0);
130    }
131
132    //-----------------------------------------------------------------------
133    public void test_date_checkGenerics_genericsMethod() {
134        Chronology chrono = ThaiBuddhistChronology.INSTANCE;
135        ChronoLocalDate date = chrono.dateNow();
136        date = processOK(date);
137        date = processClassOK(ThaiBuddhistDate.class);
138        date = dateSupplier();
139
140        date = processClassWeird(ThaiBuddhistDate.class);
141    }
142
143    public void test_date_checkGenerics_genericsMethod_concreteType() {
144        ThaiBuddhistChronology chrono = ThaiBuddhistChronology.INSTANCE;
145        ThaiBuddhistDate date = chrono.dateNow();
146        date = ThaiBuddhistDate.now();
147        date = processOK(date);
148        date = processClassOK(ThaiBuddhistDate.class);
149        date = dateSupplier();
150
151        // date = processClassWeird(ThaiBuddhistDate.class);  // does not compile (correct)
152    }
153
154    public <D extends ChronoLocalDate> void test_date_checkGenerics_genericsMethod_withType() {
155        Chronology chrono = ThaiBuddhistChronology.INSTANCE;
156        @SuppressWarnings("unchecked")
157        D date = (D) chrono.dateNow();
158        date = processOK(date);
159        // date = processClassOK(ThaiBuddhistDate.class);  // does not compile (correct)
160        date = dateSupplier();
161
162        // date = processWeird(date);  // does not compile (correct)
163        // date = processClassWeird(ThaiBuddhistDate.class);  // does not compile (correct)
164    }
165
166    @SuppressWarnings("unchecked")
167    private <D extends ChronoLocalDate> D dateSupplier() {
168        return (D) ThaiBuddhistChronology.INSTANCE.dateNow();
169    }
170
171    // decent generics signatures that need to work
172    @SuppressWarnings("unchecked")
173    private <D extends ChronoLocalDate> D processOK(D date) {
174        return (D) date.plus(1, ChronoUnit.DAYS);
175    }
176    private <D extends ChronoLocalDate> D processClassOK(Class<D> cls) {
177        return null;
178    }
179
180    // weird generics signatures that shouldn't really work
181    private <D extends ChronoLocalDate> ChronoLocalDate processClassWeird(Class<D> cls) {
182        return null;
183    }
184
185    public void test_date_checkGenerics_chronoLocalDateTime1() {
186        LocalDateTime now = LocalDateTime.now();
187        Chronology chrono = ThaiBuddhistChronology.INSTANCE;
188        ChronoLocalDateTime<?> ldt = chrono.localDateTime(now);
189        ldt = processCLDT(ldt);
190    }
191
192    public void test_date_checkGenerics_chronoLocalDateTime2() {
193        LocalDateTime now = LocalDateTime.now();
194        Chronology chrono = ThaiBuddhistChronology.INSTANCE;
195        ChronoLocalDateTime<? extends ChronoLocalDate> ldt = chrono.localDateTime(now);
196        ldt = processCLDT(ldt);
197    }
198
199    private <D extends ChronoLocalDate> ChronoLocalDateTime<D> processCLDT(ChronoLocalDateTime<D> dt) {
200        return dt;
201    }
202}
203