下面列出了怎么用java.time.DayOfWeek的API类实例代码及写法，或者点击链接到github查看源代码。
/**
* Obtains an instance defining the yearly rule to create transitions between two offsets.
* <p>
* Applications should normally obtain an instance from {@link ZoneRules}.
* This factory is only intended for use when creating {@link ZoneRules}.
*
* @param month the month of the month-day of the first day of the cutover week, not null
* @param dayOfMonthIndicator the day of the month-day of the cutover week, positive if the week is that
* day or later, negative if the week is that day or earlier, counting from the last day of the month,
* from -28 to 31 excluding 0
* @param dayOfWeek the required day-of-week, null if the month-day should not be changed
* @param time the cutover time in the 'before' offset, not null
* @param timeEndOfDay whether the time is midnight at the end of day
* @param timeDefnition how to interpret the cutover
* @param standardOffset the standard offset in force at the cutover, not null
* @param offsetBefore the offset before the cutover, not null
* @param offsetAfter the offset after the cutover, not null
* @return the rule, not null
* @throws IllegalArgumentException if the day of month indicator is invalid
* @throws IllegalArgumentException if the end of day flag is true when the time is not midnight
*/
public static ZoneOffsetTransitionRule of(
Month month,
int dayOfMonthIndicator,
DayOfWeek dayOfWeek,
LocalTime time,
boolean timeEndOfDay,
TimeDefinition timeDefnition,
ZoneOffset standardOffset,
ZoneOffset offsetBefore,
ZoneOffset offsetAfter) {
Objects.requireNonNull(month, "month");
Objects.requireNonNull(time, "time");
Objects.requireNonNull(timeDefnition, "timeDefnition");
Objects.requireNonNull(standardOffset, "standardOffset");
Objects.requireNonNull(offsetBefore, "offsetBefore");
Objects.requireNonNull(offsetAfter, "offsetAfter");
if (dayOfMonthIndicator < -28 || dayOfMonthIndicator > 31 || dayOfMonthIndicator == 0) {
throw new IllegalArgumentException("Day of month indicator must be between -28 and 31 inclusive excluding zero");
}
if (timeEndOfDay && time.equals(LocalTime.MIDNIGHT) == false) {
throw new IllegalArgumentException("Time must be midnight when end of day flag is true");
}
return new ZoneOffsetTransitionRule(month, dayOfMonthIndicator, dayOfWeek, time, timeEndOfDay, timeDefnition, standardOffset, offsetBefore, offsetAfter);
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoy_strict(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField woyField = week.weekOfYear();
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(YEAR).appendLiteral(':')
.appendValue(woyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(STRICT);
String str = "2012:0:1";
try {
LocalDate date = LocalDate.parse(str, f);
assertEquals(date.getYear(), 2012);
assertEquals(date.get(woyField), 0);
assertEquals(date.get(DAY_OF_WEEK), 1);
} catch (DateTimeException ex) {
// expected
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBYDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(dowField);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wowby), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBY(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter();
String str = date.get(yowbyField) + ":" + date.get(wowbyField) + ":" +
date.get(DAY_OF_WEEK);
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date, " :: " + str + " " + i);
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoy_strict(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField woyField = week.weekOfYear();
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(YEAR).appendLiteral(':')
.appendValue(woyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(STRICT);
String str = "2012:0:1";
try {
LocalDate date = LocalDate.parse(str, f);
assertEquals(date.getYear(), 2012);
assertEquals(date.get(woyField), 0);
assertEquals(date.get(DAY_OF_WEEK), 1);
} catch (DateTimeException ex) {
// expected
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBY_strict(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(STRICT);
String str = "2012:0:1";
try {
LocalDate date = LocalDate.parse(str, f);
assertEquals(date.get(yowbyField), 2012);
assertEquals(date.get(wowbyField), 0);
assertEquals(date.get(DAY_OF_WEEK), 1);
} catch (DateTimeException ex) {
// expected
}
}
/**
* Obtains an instance defining the yearly rule to create transitions between two offsets.
* <p>
* Applications should normally obtain an instance from {@link ZoneRules}.
* This factory is only intended for use when creating {@link ZoneRules}.
*
* @param month the month of the month-day of the first day of the cutover week, not null
* @param dayOfMonthIndicator the day of the month-day of the cutover week, positive if the week is that
* day or later, negative if the week is that day or earlier, counting from the last day of the month,
* from -28 to 31 excluding 0
* @param dayOfWeek the required day-of-week, null if the month-day should not be changed
* @param time the cutover time in the 'before' offset, not null
* @param timeEndOfDay whether the time is midnight at the end of day
* @param timeDefnition how to interpret the cutover
* @param standardOffset the standard offset in force at the cutover, not null
* @param offsetBefore the offset before the cutover, not null
* @param offsetAfter the offset after the cutover, not null
* @return the rule, not null
* @throws IllegalArgumentException if the day of month indicator is invalid
* @throws IllegalArgumentException if the end of day flag is true when the time is not midnight
*/
public static ZoneOffsetTransitionRule of(
Month month,
int dayOfMonthIndicator,
DayOfWeek dayOfWeek,
LocalTime time,
boolean timeEndOfDay,
TimeDefinition timeDefnition,
ZoneOffset standardOffset,
ZoneOffset offsetBefore,
ZoneOffset offsetAfter) {
Objects.requireNonNull(month, "month");
Objects.requireNonNull(time, "time");
Objects.requireNonNull(timeDefnition, "timeDefnition");
Objects.requireNonNull(standardOffset, "standardOffset");
Objects.requireNonNull(offsetBefore, "offsetBefore");
Objects.requireNonNull(offsetAfter, "offsetAfter");
if (dayOfMonthIndicator < -28 || dayOfMonthIndicator > 31 || dayOfMonthIndicator == 0) {
throw new IllegalArgumentException("Day of month indicator must be between -28 and 31 inclusive excluding zero");
}
if (timeEndOfDay && time.equals(LocalTime.MIDNIGHT) == false) {
throw new IllegalArgumentException("Time must be midnight when end of day flag is true");
}
return new ZoneOffsetTransitionRule(month, dayOfMonthIndicator, dayOfWeek, time, timeEndOfDay, timeDefnition, standardOffset, offsetBefore, offsetAfter);
}
private static void useTemporalAdjuster() {
LocalDate date = LocalDate.of(2014, 3, 18);
date = date.with(nextOrSame(DayOfWeek.SUNDAY));
System.out.println(date);
date = date.with(lastDayOfMonth());
System.out.println(date);
date = date.with(new NextWorkingDay());
System.out.println(date);
date = date.with(nextOrSame(DayOfWeek.FRIDAY));
System.out.println(date);
date = date.with(new NextWorkingDay());
System.out.println(date);
date = date.with(nextOrSame(DayOfWeek.FRIDAY));
System.out.println(date);
date = date.with(temporal -> {
DayOfWeek dow = DayOfWeek.of(temporal.get(ChronoField.DAY_OF_WEEK));
int dayToAdd = 1;
if (dow == DayOfWeek.FRIDAY) dayToAdd = 3;
if (dow == DayOfWeek.SATURDAY) dayToAdd = 2;
return temporal.plus(dayToAdd, ChronoUnit.DAYS);
});
System.out.println(date);
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBY_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(DAY_OF_WEEK);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wowby), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoyDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 15);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField woyField = week.weekOfYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(YEAR).appendLiteral(':')
.appendValue(woyField).appendLiteral(':')
.appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
int woy = date.get(woyField);
int dow = date.get(dowField);
for (int j = woy - 60; j < woy + 60; j++) {
String str = date.getYear() + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - woy), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
/**
* Creates an instance defining the yearly rule to create transitions between two offsets.
*
* @param month the month of the month-day of the first day of the cutover week, not null
* @param dayOfMonthIndicator the day of the month-day of the cutover week, positive if the week is that
* day or later, negative if the week is that day or earlier, counting from the last day of the month,
* from -28 to 31 excluding 0
* @param dayOfWeek the required day-of-week, null if the month-day should not be changed
* @param time the cutover time in the 'before' offset, not null
* @param timeEndOfDay whether the time is midnight at the end of day
* @param timeDefnition how to interpret the cutover
* @param standardOffset the standard offset in force at the cutover, not null
* @param offsetBefore the offset before the cutover, not null
* @param offsetAfter the offset after the cutover, not null
* @throws IllegalArgumentException if the day of month indicator is invalid
* @throws IllegalArgumentException if the end of day flag is true when the time is not midnight
*/
ZoneOffsetTransitionRule(
Month month,
int dayOfMonthIndicator,
DayOfWeek dayOfWeek,
LocalTime time,
boolean timeEndOfDay,
TimeDefinition timeDefnition,
ZoneOffset standardOffset,
ZoneOffset offsetBefore,
ZoneOffset offsetAfter) {
this.month = month;
this.dom = (byte) dayOfMonthIndicator;
this.dow = dayOfWeek;
this.time = time;
this.timeEndOfDay = timeEndOfDay;
this.timeDefinition = timeDefnition;
this.standardOffset = standardOffset;
this.offsetBefore = offsetBefore;
this.offsetAfter = offsetAfter;
}
/**
* Reads the state from the stream.
*
* @param in the input stream, not null
* @return the created object, not null
* @throws IOException if an error occurs
*/
static ZoneOffsetTransitionRule readExternal(DataInput in) throws IOException {
int data = in.readInt();
Month month = Month.of(data >>> 28);
int dom = ((data & (63 << 22)) >>> 22) - 32;
int dowByte = (data & (7 << 19)) >>> 19;
DayOfWeek dow = dowByte == 0 ? null : DayOfWeek.of(dowByte);
int timeByte = (data & (31 << 14)) >>> 14;
TimeDefinition defn = TimeDefinition.values()[(data & (3 << 12)) >>> 12];
int stdByte = (data & (255 << 4)) >>> 4;
int beforeByte = (data & (3 << 2)) >>> 2;
int afterByte = (data & 3);
LocalTime time = (timeByte == 31 ? LocalTime.ofSecondOfDay(in.readInt()) : LocalTime.of(timeByte % 24, 0));
ZoneOffset std = (stdByte == 255 ? ZoneOffset.ofTotalSeconds(in.readInt()) : ZoneOffset.ofTotalSeconds((stdByte - 128) * 900));
ZoneOffset before = (beforeByte == 3 ? ZoneOffset.ofTotalSeconds(in.readInt()) : ZoneOffset.ofTotalSeconds(std.getTotalSeconds() + beforeByte * 1800));
ZoneOffset after = (afterByte == 3 ? ZoneOffset.ofTotalSeconds(in.readInt()) : ZoneOffset.ofTotalSeconds(std.getTotalSeconds() + afterByte * 1800));
return ZoneOffsetTransitionRule.of(month, dom, dow, time, timeByte == 24, defn, std, before, after);
}
@Test
public void test_ofDayOfWeek_next_oneDay() {
for (DayOfWeek dow : DayOfWeek.values()) {
RollConvention test = RollConvention.ofDayOfWeek(dow);
assertThat(test.next(date(2014, AUGUST, 14), P1D))
.isEqualTo(date(2014, AUGUST, 15).with(TemporalAdjusters.nextOrSame(dow)));
}
}
@Test
public void test_dayOfWeekField_simpleGet() {
LocalDate date = LocalDate.of(2000, 1, 10); // Known to be ISO Monday
assertEquals(date.get(WeekFields.ISO.dayOfWeek()), 1);
assertEquals(date.get(WeekFields.of(DayOfWeek.MONDAY, 1).dayOfWeek()), 1);
assertEquals(date.get(WeekFields.of(DayOfWeek.MONDAY, 7).dayOfWeek()), 1);
assertEquals(date.get(WeekFields.SUNDAY_START.dayOfWeek()), 2);
assertEquals(date.get(WeekFields.of(DayOfWeek.SUNDAY, 1).dayOfWeek()), 2);
assertEquals(date.get(WeekFields.of(DayOfWeek.SUNDAY, 7).dayOfWeek()), 2);
assertEquals(date.get(WeekFields.of(DayOfWeek.SATURDAY, 1).dayOfWeek()), 3);
assertEquals(date.get(WeekFields.of(DayOfWeek.FRIDAY, 1).dayOfWeek()), 4);
assertEquals(date.get(WeekFields.of(DayOfWeek.TUESDAY, 1).dayOfWeek()), 7);
}
@Test
public void test_equals_string_false() {
ZoneOffsetTransitionRule a = ZoneOffsetTransitionRule.of(
Month.MARCH, 20, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
assertEquals(a.equals("TZDB"), false);
}
@Test
public void test_createTransition_floatingWeekBackwards_seventhLast() {
ZoneOffsetTransitionRule test = ZoneOffsetTransitionRule.of(
Month.MARCH, -7, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
ZoneOffsetTransition trans = ZoneOffsetTransition.of(
LocalDateTime.of(2000, Month.MARCH, 19, 1, 0), OFFSET_0200, OFFSET_0300);
assertEquals(test.createTransition(2000), trans);
}
@Ignore("Remove to run test")
@Test
public void testLastTuesdayOfMay2013() {
LocalDate expected = LocalDate.of(2013, 5, 28);
Meetup meetup = new Meetup(5, 2013);
assertEquals(expected, meetup.day(DayOfWeek.TUESDAY, MeetupSchedule.LAST));
}
@Test
public void test_equals_endOfDayDifferent() {
ZoneOffsetTransitionRule a = ZoneOffsetTransitionRule.of(
Month.MARCH, 20, DayOfWeek.SUNDAY, LocalTime.MIDNIGHT, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
ZoneOffsetTransitionRule b = ZoneOffsetTransitionRule.of(
Month.MARCH, 20, DayOfWeek.SUNDAY, LocalTime.MIDNIGHT, true, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
assertEquals(a.equals(a), true);
assertEquals(a.equals(b), false);
assertEquals(b.equals(a), false);
assertEquals(b.equals(b), true);
}
@Test
public void test_toString() {
assertEquals(DayOfWeek.MONDAY.toString(), "MONDAY");
assertEquals(DayOfWeek.TUESDAY.toString(), "TUESDAY");
assertEquals(DayOfWeek.WEDNESDAY.toString(), "WEDNESDAY");
assertEquals(DayOfWeek.THURSDAY.toString(), "THURSDAY");
assertEquals(DayOfWeek.FRIDAY.toString(), "FRIDAY");
assertEquals(DayOfWeek.SATURDAY.toString(), "SATURDAY");
assertEquals(DayOfWeek.SUNDAY.toString(), "SUNDAY");
}
@Ignore("Remove to run test")
@Test
public void testThirdFridayOfDecember2013() {
LocalDate expected = LocalDate.of(2013, 12, 20);
Meetup meetup = new Meetup(12, 2013);
assertEquals(expected, meetup.day(DayOfWeek.FRIDAY, MeetupSchedule.THIRD));
}
@Test
public void test_equals_monthDifferent() {
ZoneOffsetTransitionRule a = ZoneOffsetTransitionRule.of(
Month.MARCH, 20, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
ZoneOffsetTransitionRule b = ZoneOffsetTransitionRule.of(
Month.APRIL, 20, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
assertEquals(a.equals(a), true);
assertEquals(a.equals(b), false);
assertEquals(b.equals(a), false);
assertEquals(b.equals(b), true);
}
@Test
public void test_getDayOfWeek() {
DayOfWeek dow = DayOfWeek.MONDAY;
for (Month month : Month.values()) {
int length = month.length(false);
for (int i = 1; i <= length; i++) {
LocalDate d = LocalDate.of(2007, month, i);
assertSame(d.getDayOfWeek(), dow);
dow = dow.plus(1);
}
}
}
@Test
public void test_serialization_floatingWeekBackwards() throws Exception {
ZoneOffsetTransitionRule test = ZoneOffsetTransitionRule.of(
Month.MARCH, -1, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
assertSerializable(test);
}
@Test
public void test_adjustInto() {
assertEquals(DayOfWeek.SATURDAY.adjustInto(HijrahDate.of(1434, 6, 28)), HijrahDate.of(1434, 7, 1));
assertEquals(DayOfWeek.SATURDAY.adjustInto(HijrahDate.of(1432, 4, 13)), HijrahDate.of(1432, 4, 14));
assertEquals(DayOfWeek.SATURDAY.adjustInto(HijrahDate.of(1433, 11, 29)), HijrahDate.of(1433, 12, 4));
assertEquals(DayOfWeek.SATURDAY.adjustInto(HijrahDate.of(1434, 5, 10)), HijrahDate.of(1434, 5, 11));
assertEquals(DayOfWeek.SATURDAY.adjustInto(HijrahDate.of(1434, 9, 11)), HijrahDate.of(1434, 9, 12));
}
@Test
public void test_serialization_floatingWeek() throws Exception {
ZoneOffsetTransitionRule test = ZoneOffsetTransitionRule.of(
Month.MARCH, 20, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
assertSerializable(test);
}
/**
* Creates an instance of the definition.
*
* @param firstDayOfWeek the first day of the week, not null
* @param minimalDaysInFirstWeek the minimal number of days in the first week, from 1 to 7
* @throws IllegalArgumentException if the minimal days value is invalid
*/
private WeekFields(DayOfWeek firstDayOfWeek, int minimalDaysInFirstWeek) {
Objects.requireNonNull(firstDayOfWeek, "firstDayOfWeek");
if (minimalDaysInFirstWeek < 1 || minimalDaysInFirstWeek > 7) {
throw new IllegalArgumentException("Minimal number of days is invalid");
}
this.firstDayOfWeek = firstDayOfWeek;
this.minimalDays = minimalDaysInFirstWeek;
}
@Test
public void testDaysInRange() throws Exception {
DayOfWeek lower = TUESDAY;
DayOfWeek upper = THURSDAY;
Set<DayOfWeek> dayOfWeekSet = EnumSet.of(TUESDAY, WEDNESDAY);
loop(Constants.DAYS_CYCLES,
Constants.MOCKS,
r -> r.days().range(lower, upper).val(),
d -> assertTrue(dayOfWeekSet.contains(d)));
}
@Test
public void test_equals_null_false() {
ZoneOffsetTransitionRule a = ZoneOffsetTransitionRule.of(
Month.MARCH, 20, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
assertEquals(a.equals(null), false);
}
@Test
public void test_serialization_floatingWeek() throws Exception {
ZoneOffsetTransitionRule test = ZoneOffsetTransitionRule.of(
Month.MARCH, 20, DayOfWeek.SUNDAY, TIME_0100, false, TimeDefinition.WALL,
OFFSET_0200, OFFSET_0200, OFFSET_0300);
assertSerializable(test);
}
@Test
public void test_previousOrCurrent() {
for (Month month : Month.values()) {
for (int i = 1; i <= month.length(false); i++) {
LocalDate date = date(2007, month, i);
for (DayOfWeek dow : DayOfWeek.values()) {
LocalDate test = (LocalDate) TemporalAdjusters.previousOrSame(dow).adjustInto(date);
assertSame(test.getDayOfWeek(), dow);
if (test.getYear() == 2007) {
int dayDiff = test.getDayOfYear() - date.getDayOfYear();
assertTrue(dayDiff <= 0 && dayDiff > -7);
assertEquals(date.equals(test), date.getDayOfWeek() == dow);
} else {
assertFalse(date.getDayOfWeek() == dow);
assertSame(month, Month.JANUARY);
assertTrue(date.getDayOfMonth() < 7);
assertEquals(test.getYear(), 2006);
assertSame(test.getMonth(), Month.DECEMBER);
assertTrue(test.getDayOfMonth() > 25);
}
}
}
}
}