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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2023 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
//
//===----------------------------------------------------------------------===//
#if canImport(TestSupport)
import TestSupport
#endif
#if FOUNDATION_FRAMEWORK
@testable import Foundation
#elseif canImport(FoundationInternationalization)
@testable import FoundationInternationalization
#endif
final class TimeZoneTests : XCTestCase {
func test_timeZoneBasics() {
let tz = TimeZone(identifier: "America/Los_Angeles")!
XCTAssertTrue(!tz.identifier.isEmpty)
}
func test_equality() {
let autoupdating = TimeZone.autoupdatingCurrent
let autoupdating2 = TimeZone.autoupdatingCurrent
XCTAssertEqual(autoupdating, autoupdating2)
let current = TimeZone.current
XCTAssertNotEqual(autoupdating, current)
}
func test_AnyHashableContainingTimeZone() {
let values: [TimeZone] = [
TimeZone(identifier: "America/Los_Angeles")!,
TimeZone(identifier: "Europe/Kiev")!,
TimeZone(identifier: "Europe/Kiev")!,
]
let anyHashables = values.map(AnyHashable.init)
expectEqual(TimeZone.self, type(of: anyHashables[0].base))
expectEqual(TimeZone.self, type(of: anyHashables[1].base))
expectEqual(TimeZone.self, type(of: anyHashables[2].base))
XCTAssertNotEqual(anyHashables[0], anyHashables[1])
XCTAssertEqual(anyHashables[1], anyHashables[2])
}
func testPredefinedTimeZone() {
XCTAssertEqual(TimeZone.gmt, TimeZone(identifier: "GMT"))
}
func testLocalizedName_103036605() {
func test(_ tzIdentifier: String, _ localeIdentifier: String, _ style: TimeZone.NameStyle, _ expected: String?, file: StaticString = #filePath, line: UInt = #line) {
let tz = TimeZone(identifier: tzIdentifier)
guard let expected else {
XCTAssertNil(tz, file: file, line: line)
return
}
let locale = Locale(identifier: localeIdentifier)
XCTAssertEqual(tz?.localizedName(for: .generic, locale: locale), expected, file: file, line: line)
}
test("America/Los_Angeles", "en_US", .generic, "Pacific Time")
test("Europe/Berlin", "en_US", .generic, "Central European Time")
test("Antarctica/Vostok", "en_US", .generic, "Vostok Time")
test("Asia/Chongqing", "en_US", .generic, "China Standard Time")
test("America/Sao_Paulo", "en_US", .generic, "Brasilia Standard Time")
test("America/Los_Angeles", "zh_TW", .shortStandard, "太平洋時間")
test("Europe/Berlin", "zh_TW", .shortStandard, "中歐時間")
test("Antarctica/Vostok", "zh_TW", .shortStandard, "沃斯托克時間")
test("Asia/Chongqing", "zh_TW", .shortStandard, "中國標準時間")
test("America/Sao_Paulo", "zh_TW", .shortStandard, "巴西利亞標準時間")
// abbreviation
test("GMT", "en_US", .standard, "Greenwich Mean Time")
test("GMT+8", "en_US", .standard, "GMT+08:00")
test("PST", "en_US", .standard, "Pacific Time")
// invalid names
test("XYZ", "en_US", .standard, nil)
test("BOGUS/BOGUS", "en_US", .standard, nil)
}
func testTimeZoneName_103097012() {
func _verify(_ tz: TimeZone?, _ expectedOffset: Int?, _ createdId: String?, file: StaticString = #filePath, line: UInt = #line) {
if let expectedOffset {
XCTAssertNotNil(tz, file: file, line: line)
XCTAssertEqual(tz!.secondsFromGMT(for: Date(timeIntervalSince1970: 0)), expectedOffset, file: file, line: line)
XCTAssertEqual(tz!.identifier, createdId, file: file, line: line)
} else {
XCTAssertNil(tz, file: file, line: line)
}
}
func testIdentifier(_ tzID: String, _ expectedOffset: Int?, _ createdId: String?, file: StaticString = #filePath, line: UInt = #line) {
_verify(TimeZone(identifier: tzID), expectedOffset, createdId, file: file, line: line)
}
func testAbbreviation(_ abb: String, _ expectedOffset: Int?, _ createdId: String?, file: StaticString = #filePath, line: UInt = #line) {
_verify(TimeZone(abbreviation: abb), expectedOffset, createdId, file: file, line: line)
}
testIdentifier("America/Los_Angeles", -28800, "America/Los_Angeles")
testIdentifier("GMT", 0, "GMT")
testIdentifier("PST", -28800, "PST")
testIdentifier("GMT+8", 28800, "GMT+0800")
testIdentifier("GMT+8:00", 28800, "GMT+0800")
testIdentifier("BOGUS", nil, nil)
testIdentifier("XYZ", nil, nil)
testIdentifier("UTC", 0, "GMT")
testAbbreviation("America/Los_Angeles", nil, nil)
testAbbreviation("XYZ", nil, nil)
testAbbreviation("GMT", 0, "GMT")
testAbbreviation("PST", -28800, "America/Los_Angeles")
testAbbreviation("GMT+8", 28800, "GMT+0800")
testAbbreviation("GMT+8:00", 28800, "GMT+0800")
testAbbreviation("GMT+0800", 28800, "GMT+0800")
testAbbreviation("UTC", 0, "GMT")
}
func testSecondsFromGMT_RemoteDates() {
let date = Date(timeIntervalSinceReferenceDate: -5001243627) // "1842-07-09T05:39:33+0000"
let europeRome = TimeZone(identifier: "Europe/Rome")!
let secondsFromGMT = europeRome.secondsFromGMT(for: date)
XCTAssertEqual(secondsFromGMT, 2996) // Before 1893 the time zone is UTC+00:49:56
}
}
final class TimeZoneGMTTests : XCTestCase {
var tz: TimeZone {
TimeZone(identifier: "GMT")!
}
func testIdentifier() {
XCTAssertEqual(tz.identifier, "GMT")
}
func testSecondsFromGMT() {
XCTAssertEqual(tz.secondsFromGMT(), 0)
}
func testSecondsFromGMTForDate() {
XCTAssertEqual(tz.secondsFromGMT(for: Date.now), 0)
XCTAssertEqual(tz.secondsFromGMT(for: Date.distantFuture), 0)
XCTAssertEqual(tz.secondsFromGMT(for: Date.distantPast), 0)
}
func testAbbreviationForDate() {
XCTAssertEqual(tz.abbreviation(for: Date.now), "GMT")
XCTAssertEqual(tz.abbreviation(for: Date.distantFuture), "GMT")
XCTAssertEqual(tz.abbreviation(for: Date.distantPast), "GMT")
}
func testDaylightSavingTimeOffsetForDate() {
XCTAssertEqual(tz.daylightSavingTimeOffset(for: Date.now), 0)
XCTAssertEqual(tz.daylightSavingTimeOffset(for: Date.distantFuture), 0)
XCTAssertEqual(tz.daylightSavingTimeOffset(for: Date.distantPast), 0)
}
func testNextDaylightSavingTimeTransitionAfterDate() {
XCTAssertNil(tz.nextDaylightSavingTimeTransition(after: Date.now))
XCTAssertNil(tz.nextDaylightSavingTimeTransition(after: Date.distantFuture))
XCTAssertNil(tz.nextDaylightSavingTimeTransition(after: Date.distantPast))
}
func testNextDaylightSavingTimeTransition() {
XCTAssertNil(tz.nextDaylightSavingTimeTransition)
XCTAssertNil(tz.nextDaylightSavingTimeTransition)
XCTAssertNil(tz.nextDaylightSavingTimeTransition)
}
func testLocalizedName() {
XCTAssertEqual(tz.localizedName(for: .standard, locale: Locale(identifier: "en_US")), "Greenwich Mean Time")
XCTAssertEqual(tz.localizedName(for: .shortStandard, locale: Locale(identifier: "en_US")), "GMT")
XCTAssertEqual(tz.localizedName(for: .daylightSaving, locale: Locale(identifier: "en_US")), "Greenwich Mean Time")
XCTAssertEqual(tz.localizedName(for: .shortDaylightSaving, locale: Locale(identifier: "en_US")), "GMT")
XCTAssertEqual(tz.localizedName(for: .generic, locale: Locale(identifier: "en_US")), "Greenwich Mean Time")
XCTAssertEqual(tz.localizedName(for: .shortGeneric, locale: Locale(identifier: "en_US")), "GMT")
// TODO: In non-framework, no FoundationInternationalization cases, return nil for all of tehse
}
func testEqual() {
XCTAssertEqual(TimeZone(identifier: "UTC"), TimeZone(identifier: "UTC"))
}
func test_abbreviated() {
// A sampling of expected values for abbreviated GMT names
let expected : [(Int, String)] = [(-64800, "GMT-18"), (-64769, "GMT-17:59"), (-64709, "GMT-17:58"), (-61769, "GMT-17:09"), (-61229, "GMT-17"), (-36029, "GMT-10"), (-35969, "GMT-9:59"), (-35909, "GMT-9:58"), (-32489, "GMT-9:01"), (-32429, "GMT-9"), (-3629, "GMT-1"), (-1829, "GMT-0:30"), (-89, "GMT-0:01"), (-29, "GMT"), (-1, "GMT"), (0, "GMT"), (29, "GMT"), (30, "GMT+0:01"), (90, "GMT+0:02"), (1770, "GMT+0:30"), (3570, "GMT+1"), (3630, "GMT+1:01"), (34170, "GMT+9:30"), (35910, "GMT+9:59"), (35970, "GMT+10"), (36030, "GMT+10:01"), (64650, "GMT+17:58"), (64710, "GMT+17:59"), (64770, "GMT+18")]
for (offset, expect) in expected {
let tz = TimeZone(secondsFromGMT: offset)!
XCTAssertEqual(tz.abbreviation(), expect)
}
}
}
final class TimeZoneICUTests: XCTestCase {
func testTimeZoneOffset() {
let tz = _TimeZoneICU(identifier: "America/Los_Angeles")!
var c = Calendar(identifier: .gregorian)
c.timeZone = TimeZone(identifier: "America/Los_Angeles")!
var gmt_calendar = Calendar(identifier: .gregorian)
gmt_calendar.timeZone = .gmt
func test(_ dateComponent: DateComponents, expectedRawOffset: Int, expectedDSTOffset: TimeInterval, file: StaticString = #filePath, line: UInt = #line) {
let d = gmt_calendar.date(from: dateComponent)! // date in GMT
let (rawOffset, dstOffset) = tz.rawAndDaylightSavingTimeOffset(for: d)
XCTAssertEqual(rawOffset, expectedRawOffset, file: file, line: line)
XCTAssertEqual(dstOffset, expectedDSTOffset, file: file, line: line)
}
// Not in DST
test(.init(year: 2023, month: 3, day: 12, hour: 1, minute: 00, second: 00), expectedRawOffset: -28800, expectedDSTOffset: 0)
test(.init(year: 2023, month: 3, day: 12, hour: 1, minute: 00, second: 00, nanosecond: 1), expectedRawOffset: -28800, expectedDSTOffset: 0)
test(.init(year: 2023, month: 3, day: 12, hour: 1, minute: 00, second: 01), expectedRawOffset: -28800, expectedDSTOffset: 0)
test(.init(year: 2023, month: 3, day: 12, hour: 1, minute: 59, second: 59), expectedRawOffset: -28800, expectedDSTOffset: 0)
// These times do not exist; we treat it as if in the previous time zone, i.e. not in DST
test(.init(year: 2023, month: 3, day: 12, hour: 2, minute: 00, second: 00), expectedRawOffset: -28800, expectedDSTOffset: 0)
test(.init(year: 2023, month: 3, day: 12, hour: 2, minute: 34, second: 52), expectedRawOffset: -28800, expectedDSTOffset: 0)
// After DST starts
test(.init(year: 2023, month: 3, day: 12, hour: 3, minute: 00, second: 00), expectedRawOffset: -28800, expectedDSTOffset: 3600)
test(.init(year: 2023, month: 3, day: 12, hour: 3, minute: 34, second: 52), expectedRawOffset: -28800, expectedDSTOffset: 3600)
test(.init(year: 2023, month: 3, day: 12, hour: 4, minute: 34, second: 52), expectedRawOffset: -28800, expectedDSTOffset: 3600)
// These times happen twice; we treat it as if in the previous time zone, i.e. still in DST
test(.init(year: 2023, month: 11, day: 5, hour: 1, minute: 00, second: 00), expectedRawOffset: -28800, expectedDSTOffset: 3600)
test(.init(year: 2023, month: 11, day: 5, hour: 1, minute: 34, second: 52), expectedRawOffset: -28800, expectedDSTOffset: 3600)
// Clock should turn right back as this moment, so if we insist on being at this point, then we've moved past the transition point -- hence not DST
test(.init(year: 2023, month: 11, day: 5, hour: 2, minute: 00, second: 00), expectedRawOffset: -28800, expectedDSTOffset: 0)
// Not in DST
test(.init(year: 2023, month: 11, day: 5, hour: 2, minute: 34, second: 52), expectedRawOffset: -28800, expectedDSTOffset: 0)
test(.init(year: 2023, month: 11, day: 5, hour: 3, minute: 34, second: 52), expectedRawOffset: -28800, expectedDSTOffset: 0)
}
}
// MARK: - FoundationPreview disabled tests
#if FOUNDATION_FRAMEWORK
extension TimeZoneTests {
func decodeHelper(_ l: TimeZone) -> TimeZone {
let je = JSONEncoder()
let data = try! je.encode(l)
let jd = JSONDecoder()
return try! jd.decode(TimeZone.self, from: data)
}
// Reenable once JSONEncoder/Decoder are moved
func test_serializationOfCurrent() {
let current = TimeZone.current
let decodedCurrent = decodeHelper(current)
XCTAssertEqual(decodedCurrent, current)
let autoupdatingCurrent = TimeZone.autoupdatingCurrent
let decodedAutoupdatingCurrent = decodeHelper(autoupdatingCurrent)
XCTAssertEqual(decodedAutoupdatingCurrent, autoupdatingCurrent)
XCTAssertNotEqual(decodedCurrent, decodedAutoupdatingCurrent)
XCTAssertNotEqual(current, autoupdatingCurrent)
XCTAssertNotEqual(decodedCurrent, autoupdatingCurrent)
XCTAssertNotEqual(current, decodedAutoupdatingCurrent)
}
}
#endif // FOUNDATION_FRAMEWORK
// MARK: - Bridging Tests
#if FOUNDATION_FRAMEWORK
final class TimeZoneBridgingTests : XCTestCase {
func testCustomNSTimeZone() {
// This test verifies that a custom ObjC subclass of NSTimeZone, bridged into Swift, still calls back into ObjC. `customTimeZone` returns an instances of "MyCustomTimeZone : NSTimeZone".
let myTZ = customTimeZone()
XCTAssertEqual(myTZ.identifier, "MyCustomTimeZone")
XCTAssertEqual(myTZ.nextDaylightSavingTimeTransition(after: Date.now), Date(timeIntervalSince1970: 1000000))
XCTAssertEqual(myTZ.secondsFromGMT(), 42)
XCTAssertEqual(myTZ.abbreviation(), "hello")
XCTAssertEqual(myTZ.isDaylightSavingTime(), true)
XCTAssertEqual(myTZ.daylightSavingTimeOffset(), 12345)
}
func testCustomNSTimeZoneAsDefault() {
// Set a custom subclass of NSTimeZone as the default time zone
setCustomTimeZoneAsDefault()
// Calendar uses the default time zone
let defaultTZ = Calendar.current.timeZone
XCTAssertEqual(defaultTZ.identifier, "MyCustomTimeZone")
XCTAssertEqual(defaultTZ.nextDaylightSavingTimeTransition(after: Date.now), Date(timeIntervalSince1970: 1000000))
XCTAssertEqual(defaultTZ.secondsFromGMT(), 42)
XCTAssertEqual(defaultTZ.abbreviation(), "hello")
XCTAssertEqual(defaultTZ.isDaylightSavingTime(), true)
XCTAssertEqual(defaultTZ.daylightSavingTimeOffset(), 12345)
}
func test_AnyHashableCreatedFromNSTimeZone() {
let values: [NSTimeZone] = [
NSTimeZone(name: "America/Los_Angeles")!,
NSTimeZone(name: "Europe/Kiev")!,
NSTimeZone(name: "Europe/Kiev")!,
]
let anyHashables = values.map(AnyHashable.init)
expectEqual(TimeZone.self, type(of: anyHashables[0].base))
expectEqual(TimeZone.self, type(of: anyHashables[1].base))
expectEqual(TimeZone.self, type(of: anyHashables[2].base))
XCTAssertNotEqual(anyHashables[0], anyHashables[1])
XCTAssertEqual(anyHashables[1], anyHashables[2])
}
}
#endif // FOUNDATION_FRAMEWORK
|
