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TestCalendar.swift
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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
class TestCalendar: XCTestCase {
static var allTests: [(String, (TestCalendar) -> () throws -> Void)] {
return [
("test_allCalendars", test_allCalendars),
("test_gettingDatesOnGregorianCalendar", test_gettingDatesOnGregorianCalendar ),
("test_gettingDatesOnHebrewCalendar", test_gettingDatesOnHebrewCalendar ),
("test_gettingDatesOnChineseCalendar", test_gettingDatesOnChineseCalendar),
("test_gettingDatesOnISO8601Calendar", test_gettingDatesOnISO8601Calendar),
("test_gettingDatesOnPersianCalendar", test_gettingDatesOnPersianCalendar),
("test_copy",test_copy),
("test_addingDates", test_addingDates),
("test_datesNotOnWeekend", test_datesNotOnWeekend),
("test_datesOnWeekend", test_datesOnWeekend),
("test_customMirror", test_customMirror),
("test_ampmSymbols", test_ampmSymbols),
("test_currentCalendarRRstability", test_currentCalendarRRstability),
("test_hashing", test_hashing),
("test_dateFromDoesntMutate", test_dateFromDoesntMutate),
]
}
func test_allCalendars() {
for identifier in [
Calendar.Identifier.buddhist,
Calendar.Identifier.chinese,
Calendar.Identifier.coptic,
Calendar.Identifier.ethiopicAmeteAlem,
Calendar.Identifier.ethiopicAmeteMihret,
Calendar.Identifier.gregorian,
Calendar.Identifier.hebrew,
Calendar.Identifier.indian,
Calendar.Identifier.islamic,
Calendar.Identifier.islamicCivil,
Calendar.Identifier.islamicTabular,
Calendar.Identifier.islamicUmmAlQura,
Calendar.Identifier.iso8601,
Calendar.Identifier.japanese,
Calendar.Identifier.persian,
Calendar.Identifier.republicOfChina
] {
let calendar = Calendar(identifier: identifier)
XCTAssertEqual(identifier,calendar.identifier)
}
}
func test_gettingDatesOnGregorianCalendar() {
let date = Date(timeIntervalSince1970: 1449332351)
var calendar = Calendar(identifier: .gregorian)
calendar.timeZone = TimeZone(identifier: "UTC")!
let components = calendar.dateComponents([.year, .month, .day], from: date)
XCTAssertEqual(components.year, 2015)
XCTAssertEqual(components.month, 12)
XCTAssertEqual(components.day, 5)
// Test for problem reported by Malcolm Barclay via swift-corelibs-dev
// https://lists.swift.org/pipermail/swift-corelibs-dev/Week-of-Mon-20161128/001031.html
let fromDate = Date()
let interval = 200
let toDate = Date(timeInterval: TimeInterval(interval), since: fromDate)
let fromToComponents = calendar.dateComponents([.second], from: fromDate, to: toDate)
XCTAssertEqual(fromToComponents.second, interval);
// Issue with 32-bit CF calendar vector on Linux
// Crashes on macOS 10.12.2/Foundation 1349.25
// (Possibly related) rdar://24384757
/*
let interval2 = Int(INT32_MAX) + 1
let toDate2 = Date(timeInterval: TimeInterval(interval2), since: fromDate)
let fromToComponents2 = calendar.dateComponents([.second], from: fromDate, to: toDate2)
XCTAssertEqual(fromToComponents2.second, interval2);
*/
}
func test_gettingDatesOnISO8601Calendar() {
let date = Date(timeIntervalSince1970: 1449332351)
var calendar = Calendar(identifier: .iso8601)
calendar.timeZone = TimeZone(identifier: "UTC")!
let components = calendar.dateComponents([.year, .month, .day], from: date)
XCTAssertEqual(components.year, 2015)
XCTAssertEqual(components.month, 12)
XCTAssertEqual(components.day, 5)
}
func test_gettingDatesOnHebrewCalendar() {
let date = Date(timeIntervalSince1970: 1552580351)
var calendar = Calendar(identifier: .hebrew)
calendar.timeZone = TimeZone(identifier: "UTC")!
let components = calendar.dateComponents([.year, .month, .day], from: date)
XCTAssertEqual(components.year, 5779)
XCTAssertEqual(components.month, 7)
XCTAssertEqual(components.day, 7)
XCTAssertEqual(components.isLeapMonth, false)
}
func test_gettingDatesOnChineseCalendar() {
let date = Date(timeIntervalSince1970: 1591460351.0)
var calendar = Calendar(identifier: .chinese)
calendar.timeZone = TimeZone(identifier: "UTC")!
let components = calendar.dateComponents([.year, .month, .day], from: date)
XCTAssertEqual(components.year, 37)
XCTAssertEqual(components.month, 4)
XCTAssertEqual(components.day, 15)
XCTAssertEqual(components.isLeapMonth, true)
}
func test_gettingDatesOnPersianCalendar() {
let date = Date(timeIntervalSince1970: 1539146705)
var calendar = Calendar(identifier: .persian)
calendar.timeZone = TimeZone(identifier: "UTC")!
let components = calendar.dateComponents([.year, .month, .day], from: date)
XCTAssertEqual(components.year, 1397)
XCTAssertEqual(components.month, 7)
XCTAssertEqual(components.day, 18)
}
func test_ampmSymbols() {
let calendar = Calendar(identifier: .gregorian)
XCTAssertEqual(calendar.amSymbol, "AM")
XCTAssertEqual(calendar.pmSymbol, "PM")
}
func test_currentCalendarRRstability() {
var AMSymbols = [String]()
for _ in 1...10 {
let cal = Calendar.current
AMSymbols.append(cal.amSymbol)
}
XCTAssertEqual(AMSymbols.count, 10, "Accessing current calendar should work over multiple callouts")
}
func test_copy() {
var calendar = Calendar.current
//Mutate below fields and check if change is being reflected in copy.
calendar.firstWeekday = 2
calendar.minimumDaysInFirstWeek = 2
let copy = calendar
XCTAssertTrue(copy == calendar)
//verify firstWeekday and minimumDaysInFirstWeek of 'copy'.
calendar.firstWeekday = 3
calendar.minimumDaysInFirstWeek = 3
XCTAssertEqual(copy.firstWeekday, 2)
XCTAssertEqual(copy.minimumDaysInFirstWeek, 2)
}
func test_addingDates() {
let calendar = Calendar(identifier: .gregorian)
let thisDay = calendar.date(from: DateComponents(year: 2016, month: 10, day: 4))!
let diffComponents = DateComponents(day: 1)
let dayAfter = calendar.date(byAdding: diffComponents, to: thisDay)
let dayAfterComponents = calendar.dateComponents([.year, .month, .day], from: dayAfter!)
XCTAssertEqual(dayAfterComponents.year, 2016)
XCTAssertEqual(dayAfterComponents.month, 10)
XCTAssertEqual(dayAfterComponents.day, 5)
}
func test_datesNotOnWeekend() {
let calendar = Calendar(identifier: .gregorian)
let mondayInDecember = calendar.date(from: DateComponents(year: 2018, month: 12, day: 10))!
XCTAssertFalse(calendar.isDateInWeekend(mondayInDecember))
let tuesdayInNovember = calendar.date(from: DateComponents(year: 2017, month: 11, day: 14))!
XCTAssertFalse(calendar.isDateInWeekend(tuesdayInNovember))
let wednesdayInFebruary = calendar.date(from: DateComponents(year: 2016, month: 2, day: 17))!
XCTAssertFalse(calendar.isDateInWeekend(wednesdayInFebruary))
let thursdayInOctober = calendar.date(from: DateComponents(year: 2015, month: 10, day: 22))!
XCTAssertFalse(calendar.isDateInWeekend(thursdayInOctober))
let fridayInSeptember = calendar.date(from: DateComponents(year: 2014, month: 9, day: 26))!
XCTAssertFalse(calendar.isDateInWeekend(fridayInSeptember))
}
func test_datesOnWeekend() {
let calendar = Calendar(identifier: .gregorian)
let saturdayInJanuary = calendar.date(from: DateComponents(year:2017, month: 1, day: 7))!
XCTAssertTrue(calendar.isDateInWeekend(saturdayInJanuary))
let sundayInFebruary = calendar.date(from: DateComponents(year: 2016, month: 2, day: 14))!
XCTAssertTrue(calendar.isDateInWeekend(sundayInFebruary))
}
func test_customMirror() {
let calendar = Calendar(identifier: .gregorian)
let calendarMirror = calendar.customMirror
XCTAssertEqual(calendar.identifier, calendarMirror.descendant("identifier") as? Calendar.Identifier)
XCTAssertEqual(calendar.locale, calendarMirror.descendant("locale") as? Locale)
XCTAssertEqual(calendar.timeZone, calendarMirror.descendant("timeZone") as? TimeZone)
XCTAssertEqual(calendar.firstWeekday, calendarMirror.descendant("firstWeekday") as? Int)
XCTAssertEqual(calendar.minimumDaysInFirstWeek, calendarMirror.descendant("minimumDaysInFirstWeek") as? Int)
}
func test_hashing() {
let calendars: [Calendar] = [
Calendar.autoupdatingCurrent,
Calendar(identifier: .buddhist),
Calendar(identifier: .gregorian),
Calendar(identifier: .islamic),
Calendar(identifier: .iso8601),
]
checkHashable(calendars, equalityOracle: { $0 == $1 })
// autoupdating calendar isn't equal to the current, even though it's
// likely to be the same.
let calendars2: [Calendar] = [
Calendar.autoupdatingCurrent,
Calendar.current,
]
checkHashable(calendars2, equalityOracle: { $0 == $1 })
}
func test_dateFromDoesntMutate() throws {
// Check that date(from:) does not change the timeZone of the calendar
let df = DateFormatter()
df.dateFormat = "yyyy-MM-dd"
df.timeZone = try TimeZone(identifier: "UTC").unwrapped()
var calendar = Calendar(identifier: .gregorian)
calendar.locale = Locale(identifier: "en_US_POSIX")
calendar.timeZone = try TimeZone(secondsFromGMT: 0).unwrapped()
let calendarCopy = calendar
XCTAssertEqual(calendarCopy.timeZone.identifier, "GMT")
XCTAssertEqual(calendarCopy.timeZone.description, "GMT (fixed)")
let dc = try calendarCopy.dateComponents(in: TimeZone(identifier: "America/New_York").unwrapped(), from: df.date(from: "2019-01-01").unwrapped())
XCTAssertEqual(calendarCopy.timeZone.identifier, "GMT")
XCTAssertEqual(calendarCopy.timeZone.description, "GMT (fixed)")
let dt = try calendarCopy.date(from: dc).unwrapped()
XCTAssertEqual(dt.description, "2019-01-01 00:00:00 +0000")
XCTAssertEqual(calendarCopy.timeZone.identifier, "GMT")
XCTAssertEqual(calendarCopy.timeZone.description, "GMT (fixed)")
XCTAssertEqual(calendarCopy.timeZone, calendar.timeZone)
XCTAssertEqual(calendarCopy, calendar)
}
}
class TestNSDateComponents: XCTestCase {
static var allTests: [(String, (TestNSDateComponents) -> () throws -> Void)] {
return [
("test_hash", test_hash),
("test_copyNSDateComponents", test_copyNSDateComponents),
("test_dateDifferenceComponents", test_dateDifferenceComponents),
("test_nanoseconds", test_nanoseconds),
("test_currentCalendar", test_currentCalendar),
]
}
func test_hash() {
let c1 = NSDateComponents()
c1.year = 2018
c1.month = 8
c1.day = 1
let c2 = NSDateComponents()
c2.year = 2018
c2.month = 8
c2.day = 1
XCTAssertEqual(c1, c2)
XCTAssertEqual(c1.hash, c2.hash)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.calendar,
throughValues: [
Calendar(identifier: .gregorian),
Calendar(identifier: .buddhist),
Calendar(identifier: .chinese),
Calendar(identifier: .coptic),
Calendar(identifier: .hebrew),
Calendar(identifier: .indian),
Calendar(identifier: .islamic),
Calendar(identifier: .iso8601),
Calendar(identifier: .japanese),
Calendar(identifier: .persian)])
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.timeZone,
throughValues: (-10...10).map { TimeZone(secondsFromGMT: 3600 * $0) })
// Note: These assume components aren't range checked.
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.era,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.year,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.quarter,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.month,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.day,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.hour,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.minute,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.second,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.nanosecond,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.weekOfYear,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.weekOfMonth,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.yearForWeekOfYear,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.weekday,
throughValues: 0...20)
checkHashing_NSCopying(
initialValue: NSDateComponents(),
byMutating: \NSDateComponents.weekdayOrdinal,
throughValues: 0...20)
// isLeapMonth does not have enough values to test it here.
}
func test_copyNSDateComponents() {
let components = NSDateComponents()
components.year = 1987
components.month = 3
components.day = 17
components.hour = 14
components.minute = 20
components.second = 0
let copy = components.copy(with: nil) as! NSDateComponents
XCTAssertTrue(components.isEqual(copy))
XCTAssertTrue(components == copy)
XCTAssertFalse(components === copy)
XCTAssertEqual(copy.year, 1987)
XCTAssertEqual(copy.month, 3)
XCTAssertEqual(copy.day, 17)
XCTAssertEqual(copy.isLeapMonth, false)
//Mutate NSDateComponents and verify that it does not reflect in the copy
components.hour = 12
XCTAssertEqual(components.hour, 12)
XCTAssertEqual(copy.hour, 14)
}
func test_dateDifferenceComponents() {
// 1970-01-01 00:00:00
let date1 = Date(timeIntervalSince1970: 0)
// 1971-06-21 00:00:00
let date2 = Date(timeIntervalSince1970: 46310400)
// 2286-11-20 17:46:40
let date3 = Date(timeIntervalSince1970: 10_000_000_000)
// 2286-11-20 17:46:41
let date4 = Date(timeIntervalSince1970: 10_000_000_001)
// The date components below assume UTC/GMT time zone.
guard let timeZone = TimeZone(abbreviation: "UTC") else {
XCTFail("Unable to create UTC TimeZone for Test")
return
}
var calendar = Calendar.current
calendar.timeZone = timeZone
let diff1 = calendar.dateComponents([.month, .year, .day], from: date1, to: date2)
XCTAssertEqual(diff1.year, 1)
XCTAssertEqual(diff1.month, 5)
XCTAssertEqual(diff1.isLeapMonth, false)
XCTAssertEqual(diff1.day, 20)
XCTAssertNil(diff1.era)
XCTAssertNil(diff1.yearForWeekOfYear)
XCTAssertNil(diff1.quarter)
XCTAssertNil(diff1.weekOfYear)
XCTAssertNil(diff1.weekOfMonth)
XCTAssertNil(diff1.weekdayOrdinal)
XCTAssertNil(diff1.weekday)
XCTAssertNil(diff1.hour)
XCTAssertNil(diff1.minute)
XCTAssertNil(diff1.second)
XCTAssertNil(diff1.nanosecond)
XCTAssertNil(diff1.calendar)
XCTAssertNil(diff1.timeZone)
let diff2 = calendar.dateComponents([.weekOfMonth], from: date2, to: date1)
XCTAssertEqual(diff2.weekOfMonth, -76)
XCTAssertEqual(diff2.isLeapMonth, false)
let diff3 = calendar.dateComponents([.weekday], from: date2, to: date1)
XCTAssertEqual(diff3.weekday, -536)
XCTAssertEqual(diff3.isLeapMonth, false)
let diff4 = calendar.dateComponents([.weekday, .weekOfMonth], from: date1, to: date2)
XCTAssertEqual(diff4.weekday, 4)
XCTAssertEqual(diff4.weekOfMonth, 76)
XCTAssertEqual(diff4.isLeapMonth, false)
let diff5 = calendar.dateComponents([.weekday, .weekOfYear], from: date1, to: date2)
XCTAssertEqual(diff5.weekday, 4)
XCTAssertEqual(diff5.weekOfYear, 76)
XCTAssertEqual(diff5.isLeapMonth, false)
let diff6 = calendar.dateComponents([.month, .weekOfMonth], from: date1, to: date2)
XCTAssertEqual(diff6.month, 17)
XCTAssertEqual(diff6.weekOfMonth, 2)
XCTAssertEqual(diff6.isLeapMonth, false)
let diff7 = calendar.dateComponents([.weekOfYear, .weekOfMonth], from: date2, to: date1)
XCTAssertEqual(diff7.weekOfYear, -76)
XCTAssertEqual(diff7.weekOfMonth, 0)
XCTAssertEqual(diff7.isLeapMonth, false)
let diff8 = calendar.dateComponents([.era, .quarter, .year, .month, .day, .hour, .minute, .second, .nanosecond, .calendar, .timeZone], from: date2, to: date3)
XCTAssertEqual(diff8.era, 0)
XCTAssertEqual(diff8.year, 315)
XCTAssertEqual(diff8.quarter, 0)
XCTAssertEqual(diff8.month, 4)
XCTAssertEqual(diff8.day, 30)
XCTAssertEqual(diff8.hour, 17)
XCTAssertEqual(diff8.minute, 46)
XCTAssertEqual(diff8.second, 40)
XCTAssertEqual(diff8.nanosecond, 0)
XCTAssertEqual(diff8.isLeapMonth, false)
XCTAssertNil(diff8.calendar)
XCTAssertNil(diff8.timeZone)
let diff9 = calendar.dateComponents([.era, .quarter, .year, .month, .day, .hour, .minute, .second, .nanosecond, .calendar, .timeZone], from: date4, to: date3)
XCTAssertEqual(diff9.era, 0)
XCTAssertEqual(diff9.year, 0)
XCTAssertEqual(diff9.quarter, 0)
XCTAssertEqual(diff9.month, 0)
XCTAssertEqual(diff9.day, 0)
XCTAssertEqual(diff9.hour, 0)
XCTAssertEqual(diff9.minute, 0)
XCTAssertEqual(diff9.second, -1)
XCTAssertEqual(diff9.nanosecond, 0)
XCTAssertEqual(diff9.isLeapMonth, false)
XCTAssertNil(diff9.calendar)
XCTAssertNil(diff9.timeZone)
}
func test_nanoseconds() throws {
// 1971-06-21 00:00:00
let date1 = Date(timeIntervalSince1970: 46310400)
// 1971-06-21 00:00:00.00123
let date2 = Date(timeIntervalSince1970: 46310400.00123)
// 1971-06-24 00:16:40:00123
let date3 = Date(timeIntervalSince1970: 46570600.45678)
var calendar = Calendar.current
calendar.timeZone = try TimeZone(abbreviation: "UTC").unwrapped()
let diff1 = calendar.dateComponents([.nanosecond], from: date1, to: date2)
XCTAssertEqual(diff1.nanosecond, 1230003)
let diff2 = calendar.dateComponents([.nanosecond], from: date1, to: date2)
XCTAssertEqual(diff2.nanosecond, 1230003)
let diff3 = calendar.dateComponents([.day, .minute, .second, .nanosecond], from: date2, to: date3)
XCTAssertEqual(diff3.day, 3)
XCTAssertEqual(diff3.minute, 16)
XCTAssertEqual(diff3.second, 40)
XCTAssertEqual(diff3.nanosecond, 455549949)
let diff4 = calendar.dateComponents([.day, .minute, .second, .nanosecond], from: date3, to: date2)
XCTAssertEqual(diff4.day, -3)
XCTAssertEqual(diff4.minute, -16)
XCTAssertEqual(diff4.second, -40)
XCTAssertEqual(diff4.nanosecond, -455549950)
}
func test_currentCalendar() {
let month = Calendar.current.dateComponents([.month], from: Date(timeIntervalSince1970: 1554678000)).month // 2019-04-07 23:00:00.000 Sunday
XCTAssertEqual(month, 4)
let components = Calendar.current.dateComponents(in: TimeZone(secondsFromGMT: 0)!, from: Date(timeIntervalSince1970: 1554678000))
XCTAssertEqual(components.year, 2019)
XCTAssertEqual(components.month, 4)
XCTAssertEqual(components.hour, 23)
let d1 = Date.init(timeIntervalSince1970: 1529431200.0) // 2018-06-19 18:00:00 +0000
let d2 = Date.init(timeIntervalSince1970: 1529604000.0) // 2018-06-21 18:00:00 +0000
XCTAssertEqual(Calendar.current.compare(d1, to: d2, toGranularity: .month), .orderedSame)
XCTAssertEqual(Calendar.current.compare(d1, to: d2, toGranularity: .weekday), .orderedAscending)
XCTAssertEqual(Calendar.current.compare(d2, to: d1, toGranularity: .weekday), .orderedDescending)
}
}