1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8225641
* @summary Test the behavior of GregorianCalendar.roll(WEEK_OF_YEAR)
* when the last week is rolled into the first week of the same year
* @run junit RollFromLastToFirstWeek
*/
import java.util.*;
import java.util.stream.Stream;
import static java.util.Calendar.*;
import static org.junit.jupiter.api.Assertions.fail;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
import org.junit.jupiter.params.provider.Arguments;
/**
* Test to validate the behavior of GregorianCalendar.roll(WEEK_OF_YEAR, +1)
* when rolling from the last week of a year into the first week of the same year.
* This only test the implementation of the Gregorian Calendar roll.
*
* Rolling from the last week of a year into the first week of the same year
* could cause a WEEK_OF_YEAR with a non-existent DAY_OF_WEEK combination.
* The associated fix ensures that a final check is made, so that the first
* week is incremented to prevent this.
*/
public class RollFromLastToFirstWeek {
private static final Builder GREGORIAN_BUILDER = new Builder()
.setCalendarType("gregory");
@ParameterizedTest
@MethodSource("rollUpCalProvider")
public void rollUpTest(Calendar calendar, String[] validDates){
if (calendar instanceof GregorianCalendar) {
testRoll(calendar, validDates);
} else {
fail(String.format("Calendar is not Gregorian: %s", calendar));
}
}
private void testRoll(Calendar calendar, String[] validDates) {
String originalDate = longDateString(calendar);
calendar.roll(Calendar.WEEK_OF_YEAR, 1);
String rolledDate = longDateString(calendar);
if (!Arrays.asList(validDates).contains(rolledDate)) {
fail(String.format("""
{$$$ Failed: Rolled: "%s" by 1 week, where the first day of the week
is: %s with a minimum week length of: %s and was expecting one of: "%s", but got: "%s"},
""", originalDate, calendar.getFirstDayOfWeek(),
calendar.getMinimalDaysInFirstWeek(), Arrays.toString(validDates), rolledDate));
} else {
System.out.printf("""
{$$$ Passed: Rolled: "%s" by 1 week where the first day of the week
is: %s with a minimum week length of: %s and successfully got: "%s"},
""", originalDate, calendar.getFirstDayOfWeek(),
calendar.getMinimalDaysInFirstWeek(), rolledDate);
}
}
// This implicitly tests the Iso8601 calendar as
// MinWeek = 4 and FirstDayOfWeek = Monday is included in the provider
private static Stream<Arguments> rollUpCalProvider() {
ArrayList<Arguments> calList = new ArrayList<Arguments>();
// Week 1, Week 2 are all potential dates to roll into
// Depends on first day of week / min days in week
String[][] validDates = {
{"Wednesday, 2 January 2019", "Wednesday, 9 January 2019"},
{"Thursday, 3 January 2019" , "Thursday, 10 January 2019"},
{"Friday, 4 January 2019" , "Friday, 11 January 2019"},
{"Saturday, 5 January 2019" , "Saturday, 12 January 2019"},
{"Sunday, 6 January 2019" , "Sunday, 13 January 2019"},
{"Monday, 7 January 2019" , "Monday, 14 January 2019"},
{"Tuesday, 1 January 2019" , "Tuesday, 8 January 2019"}
};
int date = 0;
// Test all days at the end of the year that roll into week 1
for (int dayOfMonth = 25; dayOfMonth <= 31; dayOfMonth++) {
for (int weekLength = 1; weekLength <= 7; weekLength++) {
// Sunday .. Monday -> Saturday
for (int firstDay = SUNDAY; firstDay <= SATURDAY; firstDay++) {
calList.add(Arguments.of(buildCalendar(firstDay, weekLength,
dayOfMonth, DECEMBER, 2019), validDates[date]));
}
}
date++;
}
return calList.stream();
}
private static Calendar buildCalendar(int firstDayOfWeek,
int minimumWeekLength, int dayOfMonth,
int month, int year) {
return GREGORIAN_BUILDER
.setWeekDefinition(firstDayOfWeek, minimumWeekLength)
.setDate(year, month, dayOfMonth)
.build();
}
private static String longDateString(Calendar calendar) {
return String.format("%s, %s %s %s",
calendar.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, Locale.ENGLISH),
calendar.get(Calendar.DAY_OF_MONTH),
calendar.getDisplayName(Calendar.MONTH, Calendar.LONG, Locale.ENGLISH),
calendar.get(YEAR));
}
}
|
