1/*
2 * Copyright (C) 2015 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27
28#include "Test.h"
29#include <wtf/DateMath.h>
30
31namespace TestWebKitAPI {
32
33// Note: The results of these function look weird if you do not understand the following mappings:
34// dayOfWeek: [0, 6] 0 being Monday, day: [1, 31], month: [0, 11], year: ex: 2011,
35// hours: [0, 23], minutes: [0, 59], seconds: [0, 59], utcOffset: [-720,720].
36
37TEST(WTF_DateMath, dateToDaysFrom1970)
38{
39 EXPECT_EQ(0.0, dateToDaysFrom1970(1970, 0, 1));
40 EXPECT_EQ(157.0, dateToDaysFrom1970(1970, 5, 7));
41 EXPECT_EQ(-145.0, dateToDaysFrom1970(1969, 7, 9));
42 EXPECT_EQ(16322, dateToDaysFrom1970(2014, 8, 9));
43}
44
45
46TEST(WTF_DateMath, isLeapYear)
47{
48 EXPECT_TRUE(isLeapYear(1804));
49 EXPECT_FALSE(isLeapYear(1900));
50 EXPECT_TRUE(isLeapYear(1968));
51 EXPECT_TRUE(isLeapYear(1976));
52 EXPECT_TRUE(isLeapYear(2000));
53 EXPECT_FALSE(isLeapYear(2010));
54 EXPECT_TRUE(isLeapYear(2012));
55 EXPECT_FALSE(isLeapYear(2100));
56}
57
58TEST(WTF_DateMath, msToYear)
59{
60 EXPECT_EQ(1962, msToYear(-220953600000));
61 EXPECT_EQ(1970, msToYear(0));
62 EXPECT_EQ(1970, msToYear(100));
63 EXPECT_EQ(1977, msToYear(220953600000));
64 EXPECT_EQ(2013, msToYear(1365318000000));
65}
66
67TEST(WTF_DateMath, msToDays)
68{
69 EXPECT_EQ(0, msToDays(0));
70 EXPECT_EQ(2557, msToDays(220953600000));
71 EXPECT_EQ(255, msToDays(22095360000));
72 EXPECT_EQ(25, msToDays(2209536000));
73 EXPECT_EQ(2, msToDays(220953600));
74 EXPECT_EQ(0, msToDays(22095360));
75 EXPECT_EQ(0, msToDays(2209536));
76}
77
78TEST(WTF_DateMath, msToMinutes)
79{
80 EXPECT_EQ(0, msToMinutes(0));
81 EXPECT_EQ(0, msToMinutes(220953600000));
82 EXPECT_EQ(36, msToMinutes(22095360000));
83 EXPECT_EQ(36, msToMinutes(22095360000));
84 EXPECT_EQ(45, msToMinutes(2209536000));
85 EXPECT_EQ(22, msToMinutes(220953600));
86 EXPECT_EQ(8, msToMinutes(22095360));
87 EXPECT_EQ(36, msToMinutes(2209536));
88}
89
90TEST(WTF_DateMath, msToHours)
91{
92 EXPECT_EQ(0, msToHours(0));
93 EXPECT_EQ(8, msToHours(220953600000));
94 EXPECT_EQ(17, msToHours(22095360000));
95 EXPECT_EQ(13, msToHours(2209536000));
96 EXPECT_EQ(13, msToHours(220953600));
97 EXPECT_EQ(6, msToHours(22095360));
98 EXPECT_EQ(0, msToHours(2209536));
99}
100
101TEST(WTF_DateMath, dayInYear)
102{
103 EXPECT_EQ(59, dayInYear(2015, 2, 1));
104 EXPECT_EQ(60, dayInYear(2012, 2, 1));
105 EXPECT_EQ(0, dayInYear(2015, 0, 1));
106 EXPECT_EQ(31, dayInYear(2015, 1, 1));
107}
108
109TEST(WTF_DateMath, monthFromDayInYear)
110{
111 EXPECT_EQ(2, monthFromDayInYear(59, false));
112 EXPECT_EQ(1, monthFromDayInYear(59, true));
113 EXPECT_EQ(2, monthFromDayInYear(60, true));
114 EXPECT_EQ(0, monthFromDayInYear(0, false));
115 EXPECT_EQ(0, monthFromDayInYear(0, true));
116 EXPECT_EQ(1, monthFromDayInYear(31, true));
117 EXPECT_EQ(1, monthFromDayInYear(31, false));
118}
119
120TEST(WTF_DateMath, dayInMonthFromDayInYear)
121{
122 EXPECT_EQ(1, dayInMonthFromDayInYear(0, false));
123 EXPECT_EQ(1, dayInMonthFromDayInYear(0, true));
124 EXPECT_EQ(1, dayInMonthFromDayInYear(59, false));
125 EXPECT_EQ(29, dayInMonthFromDayInYear(59, true));
126 EXPECT_EQ(1, dayInMonthFromDayInYear(60, true));
127 EXPECT_EQ(1, dayInMonthFromDayInYear(0, false));
128 EXPECT_EQ(1, dayInMonthFromDayInYear(0, true));
129 EXPECT_EQ(31, dayInMonthFromDayInYear(30, true));
130 EXPECT_EQ(31, dayInMonthFromDayInYear(30, false));
131 EXPECT_EQ(31, dayInMonthFromDayInYear(365, true));
132 EXPECT_EQ(32, dayInMonthFromDayInYear(365, false));
133 EXPECT_EQ(32, dayInMonthFromDayInYear(366, true));
134}
135
136TEST(WTF_DateMath, calculateLocalTimeOffset)
137{
138 // DST Start: April 30, 1967 (02:00 am)
139 LocalTimeOffset dstStart1967 = calculateLocalTimeOffset(-84301200000, WTF::LocalTime);
140 EXPECT_TRUE(dstStart1967.isDST);
141 EXPECT_EQ(-25200000, dstStart1967.offset);
142
143 // November 1, 1967 (02:00 am)
144 LocalTimeOffset dstAlmostEnd1967 = calculateLocalTimeOffset(-68317200000, WTF::LocalTime);
145 EXPECT_TRUE(dstAlmostEnd1967.isDST);
146 EXPECT_EQ(-25200000, dstAlmostEnd1967.offset);
147
148 // DST End: November 11, 1967 (02:00 am)
149 LocalTimeOffset dstEnd1967 = calculateLocalTimeOffset(-67536000000, WTF::LocalTime);
150 EXPECT_FALSE(dstEnd1967.isDST);
151 EXPECT_EQ(-25200000, dstStart1967.offset);
152
153 // DST Start: April 3, 1988 (02:00 am)
154 LocalTimeOffset dstStart1988 = calculateLocalTimeOffset(576054000000, WTF::LocalTime);
155 EXPECT_TRUE(dstStart1988.isDST);
156 EXPECT_EQ(-25200000, dstStart1988.offset);
157
158 // DST End: November 4, 2012 (02:00 am)
159 LocalTimeOffset dstEnd2012 = calculateLocalTimeOffset(1352012400000, WTF::LocalTime);
160 EXPECT_FALSE(dstEnd2012.isDST);
161 EXPECT_EQ(-28800000, dstEnd2012.offset);
162
163 // DST Begin: March 8, 2015
164 LocalTimeOffset dstBegin2015 = calculateLocalTimeOffset(1425801600000, WTF::LocalTime);
165 EXPECT_TRUE(dstBegin2015.isDST);
166 EXPECT_EQ(-25200000, dstBegin2015.offset);
167
168 LocalTimeOffset dstBegin2015UTC = calculateLocalTimeOffset(1425801600000, WTF::UTCTime);
169 EXPECT_FALSE(dstBegin2015UTC.isDST);
170 EXPECT_EQ(-28800000, dstBegin2015UTC.offset);
171
172 // DST End: November 1, 2015
173 LocalTimeOffset dstEnd2015 = calculateLocalTimeOffset(1446361200000, WTF::LocalTime);
174 EXPECT_FALSE(dstEnd2015.isDST);
175 EXPECT_EQ(-28800000, dstEnd2015.offset);
176
177 // DST Begin: March 13, 2016
178 LocalTimeOffset dstBegin2016 = calculateLocalTimeOffset(1458111600000, WTF::LocalTime);
179 EXPECT_TRUE(dstBegin2016.isDST);
180 EXPECT_EQ(-25200000, dstBegin2016.offset);
181
182 // DST End: November 6, 2016
183 LocalTimeOffset dstEnd2016 = calculateLocalTimeOffset(1478415600000, WTF::LocalTime);
184 EXPECT_FALSE(dstEnd2016.isDST);
185 EXPECT_EQ(-28800000, dstEnd2016.offset);
186
187 // DST Begin: March 12, 2017
188 LocalTimeOffset dstBegin2017 = calculateLocalTimeOffset(1489305600000, WTF::LocalTime);
189 EXPECT_TRUE(dstBegin2017.isDST);
190 EXPECT_EQ(-25200000, dstBegin2017.offset);
191
192 // DST End: November 5, 2017
193 LocalTimeOffset dstEnd2017 = calculateLocalTimeOffset(1509865200000, WTF::LocalTime);
194 EXPECT_FALSE(dstEnd2017.isDST);
195 EXPECT_EQ(-28800000, dstEnd2017.offset);
196
197 // DST Begin: March 11, 2018
198 LocalTimeOffset dstBegin2018 = calculateLocalTimeOffset(1520755200000, WTF::LocalTime);
199 EXPECT_TRUE(dstBegin2018.isDST);
200 EXPECT_EQ(-25200000, dstBegin2018.offset);
201
202 // DST End: November 4, 2018
203 LocalTimeOffset dstEnd2018 = calculateLocalTimeOffset(1541314800000, WTF::LocalTime);
204 EXPECT_FALSE(dstEnd2018.isDST);
205 EXPECT_EQ(-28800000, dstEnd2018.offset);
206}
207
208} // namespace TestWebKitAPI
209