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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2019 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
class TestCalendar: XCTestCase {
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_gettingDatesOnJapaneseCalendar() throws {
var calendar = Calendar(identifier: .japanese)
calendar.timeZone = try XCTUnwrap( TimeZone(identifier: "UTC") )
calendar.locale = Locale(identifier: "en_US_POSIX")
do {
let date = Date(timeIntervalSince1970: 1556633400) // April 30, 2019
let components = calendar.dateComponents([.era, .year, .month, .day], from: date)
XCTAssertEqual(calendar.eraSymbols[try XCTUnwrap(components.era)], "Heisei")
XCTAssertEqual(components.year, 31)
XCTAssertEqual(components.month, 4)
XCTAssertEqual(components.day, 30)
}
// Test for new Japanese calendar era (starting from May 1, 2019)
do {
let date = Date(timeIntervalSince1970: 1556719800) // May 1, 2019
let components = calendar.dateComponents([.era, .year, .month, .day], from: date)
XCTAssertEqual(calendar.eraSymbols[try XCTUnwrap(components.era)], "Reiwa")
XCTAssertEqual(components.year, 1)
XCTAssertEqual(components.month, 5)
XCTAssertEqual(components.day, 1)
}
}
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 XCTUnwrap(TimeZone(identifier: "UTC"))
var calendar = Calendar(identifier: .gregorian)
calendar.locale = Locale(identifier: "en_US_POSIX")
calendar.timeZone = try XCTUnwrap(TimeZone(secondsFromGMT: 0))
let calendarCopy = calendar
XCTAssertEqual(calendarCopy.timeZone.identifier, "GMT")
XCTAssertEqual(calendarCopy.timeZone.secondsFromGMT(), 0)
let dc = try calendarCopy.dateComponents(in: XCTUnwrap(TimeZone(identifier: "America/New_York")), from: XCTUnwrap(df.date(from: "2019-01-01")))
XCTAssertEqual(calendarCopy.timeZone.identifier, "GMT")
XCTAssertEqual(calendarCopy.timeZone.secondsFromGMT(), 0)
let dt = try XCTUnwrap(calendarCopy.date(from: dc))
XCTAssertEqual(dt.description, "2019-01-01 00:00:00 +0000")
XCTAssertEqual(calendarCopy.timeZone.identifier, "GMT")
XCTAssertEqual(calendarCopy.timeZone.secondsFromGMT(), 0)
XCTAssertEqual(calendarCopy.timeZone, calendar.timeZone)
XCTAssertEqual(calendarCopy, calendar)
}
func test_sr10638() {
// https://bugs.swift.org/browse/SR-10638
let cal = Calendar(identifier: .gregorian)
XCTAssertGreaterThan(cal.eraSymbols.count, 0)
}
func test_nextDate() throws {
var calendar = Calendar.current
calendar.timeZone = try XCTUnwrap(TimeZone(identifier: "US/Pacific"))
let date_20200101 = try XCTUnwrap(calendar.date(from: DateComponents(year: 2020, month: 01, day: 1)))
do {
let expected = try XCTUnwrap(calendar.date(from: DateComponents(year: 2020, month: 01, day: 2, hour: 0)))
let components = DateComponents(year: 2020, month: 1, day: 2, hour: 0, minute: 0, second: 0)
let next = calendar.nextDate(after: date_20200101, matching: components, matchingPolicy: .nextTimePreservingSmallerComponents, direction: .forward)
XCTAssertEqual(next, expected)
}
do {
// SR-13979 - Check nil result when no valid nextDate
let components = DateComponents(year: 2019, month: 2, day: 1, hour: 0, minute: 0, second: 0)
let next = calendar.nextDate(after: date_20200101, matching: components, matchingPolicy: .nextTimePreservingSmallerComponents, direction: .forward)
XCTAssertNil(next)
}
}
}
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