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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 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 canImport(FoundationEssentials)
@testable import FoundationEssentials
#endif
#if FOUNDATION_FRAMEWORK
@testable import Foundation
#endif
final class ISO8601FormatStyleFormattingTests: XCTestCase {
func test_ISO8601Format() throws {
let date = Date(timeIntervalSinceReferenceDate: 665076946.0)
let fractionalSecondsDate = Date(timeIntervalSinceReferenceDate: 665076946.011)
let iso8601 = Date.ISO8601FormatStyle()
// Date is: "2022-01-28 15:35:46"
XCTAssertEqual(iso8601.format(date), "2022-01-28T15:35:46Z")
XCTAssertEqual(iso8601.time(includingFractionalSeconds: true).format(fractionalSecondsDate), "15:35:46.011")
XCTAssertEqual(iso8601.year().month().day().time(includingFractionalSeconds: true).format(fractionalSecondsDate), "2022-01-28T15:35:46.011")
// Day-only results: the default time is midnight for parsed date when the time piece is missing
// Date is: "2022-01-28 00:00:00"
XCTAssertEqual(iso8601.year().month().day().dateSeparator(.dash).format(date), "2022-01-28")
// Date is: "2022-01-28 00:00:00"
XCTAssertEqual(iso8601.year().month().day().dateSeparator(.omitted).format(date), "20220128")
// Time-only results: we use the default date of the format style, 1970-01-01, to supplement the parsed date without year, month or day
// Date is: "1970-01-23 00:00:00"
XCTAssertEqual(iso8601.weekOfYear().day().dateSeparator(.dash).format(date), "W04-05")
// Date is: "1970-01-28 15:35:46"
XCTAssertEqual(iso8601.day().time(includingFractionalSeconds: false).timeSeparator(.colon).format(date), "028T15:35:46")
// Date is: "1970-01-01 15:35:46"
XCTAssertEqual(iso8601.time(includingFractionalSeconds: false).timeSeparator(.colon).format(date), "15:35:46")
// Date is: "1970-01-01 15:35:46"
XCTAssertEqual(iso8601.time(includingFractionalSeconds: false).timeZone(separator: .omitted).format(date), "15:35:46Z")
// Date is: "1970-01-01 15:35:46"
XCTAssertEqual(iso8601.time(includingFractionalSeconds: false).timeZone(separator: .colon).format(date), "15:35:46Z")
// Date is: "1970-01-01 15:35:46"
XCTAssertEqual(iso8601.timeZone(separator: .colon).time(includingFractionalSeconds: false).timeSeparator(.colon).format(date), "15:35:46Z")
// Time zones
var iso8601Pacific = iso8601
iso8601Pacific.timeZone = TimeZone(secondsFromGMT: -3600 * 8)!
// Has a seconds component (-28830)
var iso8601PacificIsh = iso8601
iso8601PacificIsh.timeZone = TimeZone(secondsFromGMT: -3600 * 8 - 30)!
XCTAssertEqual(iso8601Pacific.timeSeparator(.omitted).format(date), "2022-01-28T073546-0800")
XCTAssertEqual(iso8601Pacific.timeSeparator(.omitted).timeZoneSeparator(.colon).format(date), "2022-01-28T073546-08:00")
XCTAssertEqual(iso8601PacificIsh.timeSeparator(.omitted).format(date), "2022-01-28T073516-080030")
XCTAssertEqual(iso8601PacificIsh.timeSeparator(.omitted).timeZoneSeparator(.colon).format(date), "2022-01-28T073516-08:00:30")
var iso8601gmtP1 = iso8601
iso8601gmtP1.timeZone = TimeZone(secondsFromGMT: 3600)!
XCTAssertEqual(iso8601gmtP1.timeSeparator(.omitted).format(date), "2022-01-28T163546+0100")
XCTAssertEqual(iso8601gmtP1.timeSeparator(.omitted).timeZoneSeparator(.colon).format(date), "2022-01-28T163546+01:00")
}
func test_codable() {
let iso8601Style = Date.ISO8601FormatStyle().year().month().day()
let encoder = JSONEncoder()
let encodedStyle = try! encoder.encode(iso8601Style)
let decoder = JSONDecoder()
let decodedStyle = try? decoder.decode(Date.ISO8601FormatStyle.self, from: encodedStyle)
XCTAssertNotNil(decodedStyle)
}
func testLeadingDotSyntax() {
let _ = Date().formatted(.iso8601)
}
func test_ISO8601FormatWithDate() throws {
// dateFormatter.date(from: "2021-07-01 15:56:32")!
let date = Date(timeIntervalSinceReferenceDate: 646847792.0) // Thursday
XCTAssertEqual(date.formatted(.iso8601), "2021-07-01T15:56:32Z")
XCTAssertEqual(date.formatted(.iso8601.dateSeparator(.omitted)), "20210701T15:56:32Z")
XCTAssertEqual(date.formatted(.iso8601.dateTimeSeparator(.space)), "2021-07-01 15:56:32Z")
XCTAssertEqual(date.formatted(.iso8601.timeSeparator(.omitted)), "2021-07-01T155632Z")
XCTAssertEqual(date.formatted(.iso8601.dateSeparator(.omitted).timeSeparator(.omitted)), "20210701T155632Z")
XCTAssertEqual(date.formatted(.iso8601.year().month().day().time(includingFractionalSeconds: false).timeZone(separator: .omitted)), "2021-07-01T15:56:32Z")
XCTAssertEqual(date.formatted(.iso8601.year().month().day().time(includingFractionalSeconds: true).timeZone(separator: .omitted).dateSeparator(.dash).dateTimeSeparator(.standard).timeSeparator(.colon)), "2021-07-01T15:56:32.000Z")
XCTAssertEqual(date.formatted(.iso8601.year()), "2021")
XCTAssertEqual(date.formatted(.iso8601.year().month()), "2021-07")
XCTAssertEqual(date.formatted(.iso8601.year().month().day()), "2021-07-01")
XCTAssertEqual(date.formatted(.iso8601.year().month().day().dateSeparator(.omitted)), "20210701")
XCTAssertEqual(date.formatted(.iso8601.year().weekOfYear()), "2021-W26")
XCTAssertEqual(date.formatted(.iso8601.year().weekOfYear().day()), "2021-W26-04") // day() is the weekday number
XCTAssertEqual(date.formatted(.iso8601.year().day()), "2021-182") // day() is the ordinal day
XCTAssertEqual(date.formatted(.iso8601.time(includingFractionalSeconds: false)), "15:56:32")
XCTAssertEqual(date.formatted(.iso8601.time(includingFractionalSeconds: true)), "15:56:32.000")
XCTAssertEqual(date.formatted(.iso8601.time(includingFractionalSeconds: false).timeZone(separator: .omitted)), "15:56:32Z")
}
func test_remoteDate() throws {
let date = Date(timeIntervalSince1970: 999999999999.0) // Remote date
XCTAssertEqual(date.formatted(.iso8601), "33658-09-27T01:46:39Z")
XCTAssertEqual(date.formatted(.iso8601.year().weekOfYear().day()), "33658-W39-05") // day() is the weekday number
}
func test_internal_formatDateComponents() throws {
let dc = DateComponents(year: -2025, month: 1, day: 20, hour: 0, minute: 0, second: 0)
let str = Date.ISO8601FormatStyle().format(dc, appendingTimeZoneOffset: 0)
XCTAssertEqual(str, "-2025-01-20T00:00:00Z")
}
func test_rounding() {
// Date is: "1970-01-01 15:35:45.9999"
let date = Date(timeIntervalSinceReferenceDate: -978251054.0 - 0.0001)
let str = Date.ISO8601FormatStyle().timeZone(separator: .colon).time(includingFractionalSeconds: true).timeSeparator(.colon).format(date)
XCTAssertEqual(str, "15:35:45.999Z")
}
}
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