forked from swiftlang/swift-corelibs-foundation
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathTestDateFormatter.swift
507 lines (416 loc) · 24.8 KB
/
TestDateFormatter.swift
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
// 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 TestDateFormatter: XCTestCase {
let DEFAULT_LOCALE = "en_US_POSIX"
let DEFAULT_TIMEZONE = "GMT"
static var allTests : [(String, (TestDateFormatter) -> () throws -> Void)] {
return [
("test_BasicConstruction", test_BasicConstruction),
("test_dateStyleShort", test_dateStyleShort),
//("test_dateStyleMedium", test_dateStyleMedium),
("test_dateStyleLong", test_dateStyleLong),
("test_dateStyleFull", test_dateStyleFull),
("test_customDateFormat", test_customDateFormat),
("test_setLocalizedDateFormatFromTemplate", test_setLocalizedDateFormatFromTemplate),
("test_dateFormatString", test_dateFormatString),
("test_setLocaleToNil", test_setLocaleToNil),
("test_setTimeZoneToNil", test_setTimeZoneToNil),
("test_setTimeZone", test_setTimeZone),
("test_expectedTimeZone", test_expectedTimeZone),
("test_dateFrom", test_dateFrom),
("test_dateParseAndFormatWithJapaneseCalendar", test_dateParseAndFormatWithJapaneseCalendar),
("test_orderOfPropertySetters", test_orderOfPropertySetters),
]
}
func test_BasicConstruction() {
let symbolDictionaryOne = ["eraSymbols" : ["BC", "AD"],
"monthSymbols" : ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
"shortMonthSymbols" : ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
"weekdaySymbols" : ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
"shortWeekdaySymbols" : ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
"longEraSymbols" : ["Before Christ", "Anno Domini"],
"veryShortMonthSymbols" : ["J", "F", "M", "A", "M", "J", "J", "A", "S", "O", "N", "D"],
"standaloneMonthSymbols" : ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
"shortStandaloneMonthSymbols" : ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
"veryShortStandaloneMonthSymbols" : ["J", "F", "M", "A", "M", "J", "J", "A", "S", "O", "N", "D"]]
let symbolDictionaryTwo = ["veryShortWeekdaySymbols" : ["S", "M", "T", "W", "T", "F", "S"],
"standaloneWeekdaySymbols" : ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
"shortStandaloneWeekdaySymbols" : ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
"veryShortStandaloneWeekdaySymbols" : ["S", "M", "T", "W", "T", "F", "S"],
"quarterSymbols" : ["1st quarter", "2nd quarter", "3rd quarter", "4th quarter"],
"shortQuarterSymbols" : ["Q1", "Q2", "Q3", "Q4"],
"standaloneQuarterSymbols" : ["1st quarter", "2nd quarter", "3rd quarter", "4th quarter"],
"shortStandaloneQuarterSymbols" : ["Q1", "Q2", "Q3", "Q4"]]
let f = DateFormatter()
XCTAssertNotNil(f.timeZone)
XCTAssertNotNil(f.locale)
f.timeZone = TimeZone(identifier: DEFAULT_TIMEZONE)
f.locale = Locale(identifier: DEFAULT_LOCALE)
// Assert default values are set properly
XCTAssertFalse(f.generatesCalendarDates)
XCTAssertNotNil(f.calendar)
XCTAssertFalse(f.isLenient)
XCTAssertEqual(f.twoDigitStartDate!, Date(timeIntervalSince1970: -631152000))
XCTAssertNil(f.defaultDate)
XCTAssertEqual(f.eraSymbols, symbolDictionaryOne["eraSymbols"]!)
XCTAssertEqual(f.monthSymbols, symbolDictionaryOne["monthSymbols"]!)
XCTAssertEqual(f.shortMonthSymbols, symbolDictionaryOne["shortMonthSymbols"]!)
XCTAssertEqual(f.weekdaySymbols, symbolDictionaryOne["weekdaySymbols"]!)
XCTAssertEqual(f.shortWeekdaySymbols, symbolDictionaryOne["shortWeekdaySymbols"]!)
XCTAssertEqual(f.amSymbol, "AM")
XCTAssertEqual(f.pmSymbol, "PM")
XCTAssertEqual(f.longEraSymbols, symbolDictionaryOne["longEraSymbols"]!)
XCTAssertEqual(f.veryShortMonthSymbols, symbolDictionaryOne["veryShortMonthSymbols"]!)
XCTAssertEqual(f.standaloneMonthSymbols, symbolDictionaryOne["standaloneMonthSymbols"]!)
XCTAssertEqual(f.shortStandaloneMonthSymbols, symbolDictionaryOne["shortStandaloneMonthSymbols"]!)
XCTAssertEqual(f.veryShortStandaloneMonthSymbols, symbolDictionaryOne["veryShortStandaloneMonthSymbols"]!)
XCTAssertEqual(f.veryShortWeekdaySymbols, symbolDictionaryTwo["veryShortWeekdaySymbols"]!)
XCTAssertEqual(f.standaloneWeekdaySymbols, symbolDictionaryTwo["standaloneWeekdaySymbols"]!)
XCTAssertEqual(f.shortStandaloneWeekdaySymbols, symbolDictionaryTwo["shortStandaloneWeekdaySymbols"]!)
XCTAssertEqual(f.veryShortStandaloneWeekdaySymbols, symbolDictionaryTwo["veryShortStandaloneWeekdaySymbols"]!)
XCTAssertEqual(f.quarterSymbols, symbolDictionaryTwo["quarterSymbols"]!)
XCTAssertEqual(f.shortQuarterSymbols, symbolDictionaryTwo["shortQuarterSymbols"]!)
XCTAssertEqual(f.standaloneQuarterSymbols, symbolDictionaryTwo["standaloneQuarterSymbols"]!)
XCTAssertEqual(f.shortStandaloneQuarterSymbols, symbolDictionaryTwo["shortStandaloneQuarterSymbols"]!)
XCTAssertEqual(f.gregorianStartDate, Date(timeIntervalSince1970: -12219292800))
XCTAssertFalse(f.doesRelativeDateFormatting)
}
// ShortStyle
// locale stringFromDate example
// ------ -------------- --------
// en_US M/d/yy h:mm a 12/25/15 12:00 AM
func test_dateStyleShort() {
let timestamps = [
-31536000 : "1/1/69, 12:00 AM" , 0.0 : "1/1/70, 12:00 AM", 31536000 : "1/1/71, 12:00 AM",
2145916800 : "1/1/38, 12:00 AM", 1456272000 : "2/24/16, 12:00 AM", 1456358399 : "2/24/16, 11:59 PM",
1452574638 : "1/12/16, 4:57 AM", 1455685038 : "2/17/16, 4:57 AM", 1458622638 : "3/22/16, 4:57 AM",
1459745838 : "4/4/16, 4:57 AM", 1462597038 : "5/7/16, 4:57 AM", 1465534638 : "6/10/16, 4:57 AM",
1469854638 : "7/30/16, 4:57 AM", 1470718638 : "8/9/16, 4:57 AM", 1473915438 : "9/15/16, 4:57 AM",
1477285038 : "10/24/16, 4:57 AM", 1478062638 : "11/2/16, 4:57 AM", 1482641838 : "12/25/16, 4:57 AM"
]
let f = DateFormatter()
f.dateStyle = .short
f.timeStyle = .short
// ensure tests give consistent results by setting specific timeZone and locale
f.timeZone = TimeZone(identifier: DEFAULT_TIMEZONE)
f.locale = Locale(identifier: DEFAULT_LOCALE)
for (timestamp, stringResult) in timestamps {
let testDate = Date(timeIntervalSince1970: timestamp)
let sf = f.string(from: testDate)
XCTAssertEqual(sf, stringResult)
}
}
// MediumStyle
// locale stringFromDate example
// ------ -------------- ------------
// en_US MMM d, y, h:mm:ss a Dec 25, 2015, 12:00:00 AM
func test_dateStyleMedium() {
let timestamps = [
-31536000 : "Jan 1, 1969, 12:00:00 AM" , 0.0 : "Jan 1, 1970, 12:00:00 AM", 31536000 : "Jan 1, 1971, 12:00:00 AM",
2145916800 : "Jan 1, 2038, 12:00:00 AM", 1456272000 : "Feb 24, 2016, 12:00:00 AM", 1456358399 : "Feb 24, 2016, 11:59:59 PM",
1452574638 : "Jan 12, 2016, 4:57:18 AM", 1455685038 : "Feb 17, 2016, 4:57:18 AM", 1458622638 : "Mar 22, 2016, 4:57:18 AM",
1459745838 : "Apr 4, 2016, 4:57:18 AM", 1462597038 : "May 7, 2016, 4:57:18 AM", 1465534638 : "Jun 10, 2016, 4:57:18 AM",
1469854638 : "Jul 30, 2016, 4:57:18 AM", 1470718638 : "Aug 9, 2016, 4:57:18 AM", 1473915438 : "Sep 15, 2016, 4:57:18 AM",
1477285038 : "Oct 24, 2016, 4:57:18 AM", 1478062638 : "Nov 2, 2016, 4:57:18 AM", 1482641838 : "Dec 25, 2016, 4:57:18 AM"
]
let f = DateFormatter()
f.dateStyle = .medium
f.timeStyle = .medium
f.timeZone = TimeZone(identifier: DEFAULT_TIMEZONE)
f.locale = Locale(identifier: DEFAULT_LOCALE)
for (timestamp, stringResult) in timestamps {
let testDate = Date(timeIntervalSince1970: timestamp)
let sf = f.string(from: testDate)
XCTAssertEqual(sf, stringResult)
}
}
// LongStyle
// locale stringFromDate example
// ------ -------------- -----------------
// en_US MMMM d, y 'at' h:mm:ss a zzz December 25, 2015 at 12:00:00 AM GMT
func test_dateStyleLong() {
let timestamps = [
-31536000 : "January 1, 1969 at 12:00:00 AM GMT" , 0.0 : "January 1, 1970 at 12:00:00 AM GMT", 31536000 : "January 1, 1971 at 12:00:00 AM GMT",
2145916800 : "January 1, 2038 at 12:00:00 AM GMT", 1456272000 : "February 24, 2016 at 12:00:00 AM GMT", 1456358399 : "February 24, 2016 at 11:59:59 PM GMT",
1452574638 : "January 12, 2016 at 4:57:18 AM GMT", 1455685038 : "February 17, 2016 at 4:57:18 AM GMT", 1458622638 : "March 22, 2016 at 4:57:18 AM GMT",
1459745838 : "April 4, 2016 at 4:57:18 AM GMT", 1462597038 : "May 7, 2016 at 4:57:18 AM GMT", 1465534638 : "June 10, 2016 at 4:57:18 AM GMT",
1469854638 : "July 30, 2016 at 4:57:18 AM GMT", 1470718638 : "August 9, 2016 at 4:57:18 AM GMT", 1473915438 : "September 15, 2016 at 4:57:18 AM GMT",
1477285038 : "October 24, 2016 at 4:57:18 AM GMT", 1478062638 : "November 2, 2016 at 4:57:18 AM GMT", 1482641838 : "December 25, 2016 at 4:57:18 AM GMT"
]
let f = DateFormatter()
f.dateStyle = .long
f.timeStyle = .long
f.timeZone = TimeZone(identifier: DEFAULT_TIMEZONE)
f.locale = Locale(identifier: DEFAULT_LOCALE)
for (timestamp, stringResult) in timestamps {
let testDate = Date(timeIntervalSince1970: timestamp)
let sf = f.string(from: testDate)
XCTAssertEqual(sf, stringResult)
}
}
// FullStyle
// locale stringFromDate example
// ------ -------------- -------------------------
// en_US EEEE, MMMM d, y 'at' h:mm:ss a zzzz Friday, December 25, 2015 at 12:00:00 AM Greenwich Mean Time
func test_dateStyleFull() {
#if os(macOS) // timestyle .full is currently broken on Linux, the timezone should be 'Greenwich Mean Time' not 'GMT'
let timestamps: [TimeInterval:String] = [
// Negative time offsets are still buggy on macOS
-31536000 : "Wednesday, January 1, 1969 at 12:00:00 AM GMT", 0.0 : "Thursday, January 1, 1970 at 12:00:00 AM Greenwich Mean Time",
31536000 : "Friday, January 1, 1971 at 12:00:00 AM Greenwich Mean Time", 2145916800 : "Friday, January 1, 2038 at 12:00:00 AM Greenwich Mean Time",
1456272000 : "Wednesday, February 24, 2016 at 12:00:00 AM Greenwich Mean Time", 1456358399 : "Wednesday, February 24, 2016 at 11:59:59 PM Greenwich Mean Time",
1452574638 : "Tuesday, January 12, 2016 at 4:57:18 AM Greenwich Mean Time", 1455685038 : "Wednesday, February 17, 2016 at 4:57:18 AM Greenwich Mean Time",
1458622638 : "Tuesday, March 22, 2016 at 4:57:18 AM Greenwich Mean Time", 1459745838 : "Monday, April 4, 2016 at 4:57:18 AM Greenwich Mean Time",
1462597038 : "Saturday, May 7, 2016 at 4:57:18 AM Greenwich Mean Time", 1465534638 : "Friday, June 10, 2016 at 4:57:18 AM Greenwich Mean Time",
1469854638 : "Saturday, July 30, 2016 at 4:57:18 AM Greenwich Mean Time", 1470718638 : "Tuesday, August 9, 2016 at 4:57:18 AM Greenwich Mean Time",
1473915438 : "Thursday, September 15, 2016 at 4:57:18 AM Greenwich Mean Time", 1477285038 : "Monday, October 24, 2016 at 4:57:18 AM Greenwich Mean Time",
1478062638 : "Wednesday, November 2, 2016 at 4:57:18 AM Greenwich Mean Time", 1482641838 : "Sunday, December 25, 2016 at 4:57:18 AM Greenwich Mean Time"
]
let f = DateFormatter()
f.dateStyle = .full
f.timeStyle = .full
f.timeZone = TimeZone(identifier: DEFAULT_TIMEZONE)
f.locale = Locale(identifier: DEFAULT_LOCALE)
for (timestamp, stringResult) in timestamps {
let testDate = Date(timeIntervalSince1970: timestamp)
let sf = f.string(from: testDate)
XCTAssertEqual(sf, stringResult)
}
#endif
}
// Custom Style
// locale stringFromDate example
// ------ -------------- -------------------------
// en_US EEEE, MMMM d, y 'at' hh:mm:ss a zzzz Friday, December 25, 2015 at 12:00:00 AM Greenwich Mean Time
func test_customDateFormat() {
let timestamps = [
// Negative time offsets are still buggy on macOS
-31536000 : "Wednesday, January 1, 1969 at 12:00:00 AM GMT", 0.0 : "Thursday, January 1, 1970 at 12:00:00 AM Greenwich Mean Time",
31536000 : "Friday, January 1, 1971 at 12:00:00 AM Greenwich Mean Time", 2145916800 : "Friday, January 1, 2038 at 12:00:00 AM Greenwich Mean Time",
1456272000 : "Wednesday, February 24, 2016 at 12:00:00 AM Greenwich Mean Time", 1456358399 : "Wednesday, February 24, 2016 at 11:59:59 PM Greenwich Mean Time",
1452574638 : "Tuesday, January 12, 2016 at 04:57:18 AM Greenwich Mean Time", 1455685038 : "Wednesday, February 17, 2016 at 04:57:18 AM Greenwich Mean Time",
1458622638 : "Tuesday, March 22, 2016 at 04:57:18 AM Greenwich Mean Time", 1459745838 : "Monday, April 4, 2016 at 04:57:18 AM Greenwich Mean Time",
1462597038 : "Saturday, May 7, 2016 at 04:57:18 AM Greenwich Mean Time", 1465534638 : "Friday, June 10, 2016 at 04:57:18 AM Greenwich Mean Time",
1469854638 : "Saturday, July 30, 2016 at 04:57:18 AM Greenwich Mean Time", 1470718638 : "Tuesday, August 9, 2016 at 04:57:18 AM Greenwich Mean Time",
1473915438 : "Thursday, September 15, 2016 at 04:57:18 AM Greenwich Mean Time", 1477285038 : "Monday, October 24, 2016 at 04:57:18 AM Greenwich Mean Time",
1478062638 : "Wednesday, November 2, 2016 at 04:57:18 AM Greenwich Mean Time", 1482641838 : "Sunday, December 25, 2016 at 04:57:18 AM Greenwich Mean Time"
]
let f = DateFormatter()
f.timeZone = TimeZone(identifier: DEFAULT_TIMEZONE)
f.locale = Locale(identifier: DEFAULT_LOCALE)
#if os(macOS) // timestyle zzzz is currently broken on Linux
f.dateFormat = "EEEE, MMMM d, y 'at' hh:mm:ss a zzzz"
for (timestamp, stringResult) in timestamps {
let testDate = Date(timeIntervalSince1970: timestamp)
let sf = f.string(from: testDate)
XCTAssertEqual(sf, stringResult)
}
#endif
let quarterTimestamps: [Double : String] = [
1451679712 : "1", 1459542112 : "2", 1467404512 : "3", 1475353312 : "4"
]
f.dateFormat = "Q"
for (timestamp, stringResult) in quarterTimestamps {
let testDate = Date(timeIntervalSince1970: timestamp)
let sf = f.string(from: testDate)
XCTAssertEqual(sf, stringResult)
}
// Check .dateFormat resets when style changes
let testDate = Date(timeIntervalSince1970: 1457738454)
// Fails on High Sierra
//f.dateStyle = .medium
//f.timeStyle = .medium
//XCTAssertEqual(f.string(from: testDate), "Mar 11, 2016, 11:20:54 PM")
//XCTAssertEqual(f.dateFormat, "MMM d, y, h:mm:ss a")
f.dateFormat = "dd-MM-yyyy"
XCTAssertEqual(f.string(from: testDate), "11-03-2016")
}
func test_setLocalizedDateFormatFromTemplate() {
let locale = Locale(identifier: DEFAULT_LOCALE)
let template = "EEEE MMMM d y hhmmss a zzzz"
let f = DateFormatter()
f.locale = locale
f.setLocalizedDateFormatFromTemplate(template)
let dateFormat = DateFormatter.dateFormat(fromTemplate: template, options: 0, locale: locale)
XCTAssertEqual(f.dateFormat, dateFormat)
}
func test_dateFormatString() {
let f = DateFormatter()
f.timeZone = TimeZone(abbreviation: DEFAULT_TIMEZONE)
//.full cases have been commented out as they're not working correctly on Linux
let formats: [String: (DateFormatter.Style, DateFormatter.Style)] = [
"": (.none, .none),
"h:mm a": (.none, .short),
"h:mm:ss a": (.none, .medium),
"h:mm:ss a z": (.none, .long),
// "h:mm:ss a zzzz": (.none, .full),
"M/d/yy": (.short, .none),
"M/d/yy, h:mm a": (.short, .short),
"M/d/yy, h:mm:ss a": (.short, .medium),
"M/d/yy, h:mm:ss a z": (.short, .long),
// "M/d/yy, h:mm:ss a zzzz": (.short, .full),
"MMM d, y": (.medium, .none),
//These tests currently fail, there seems to be a difference in behavior in the CoreFoundation methods called to construct the format strings.
// "MMM d, y 'at' h:mm a": (.medium, .short),
// "MMM d, y 'at' h:mm:ss a": (.medium, .medium),
// "MMM d, y 'at' h:mm:ss a z": (.medium, .long),
// "MMM d, y 'at' h:mm:ss a zzzz": (.medium, .full),
"MMMM d, y": (.long, .none),
"MMMM d, y 'at' h:mm a": (.long, .short),
"MMMM d, y 'at' h:mm:ss a": (.long, .medium),
"MMMM d, y 'at' h:mm:ss a z": (.long, .long),
// "MMMM d, y 'at' h:mm:ss a zzzz": (.long, .full),
// "EEEE, MMMM d, y": (.full, .none),
// "EEEE, MMMM d, y 'at' h:mm a": (.full, .short),
// "EEEE, MMMM d, y 'at' h:mm:ss a": (.full, .medium),
// "EEEE, MMMM d, y 'at' h:mm:ss a z": (.full, .long),
// "EEEE, MMMM d, y 'at' h:mm:ss a zzzz": (.full, .full),
]
for (dateFormat, styles) in formats {
f.dateStyle = styles.0
f.timeStyle = styles.1
XCTAssertEqual(f.dateFormat, dateFormat)
}
}
func test_setLocaleToNil() {
let f = DateFormatter()
// Locale should be the current one by default
XCTAssertEqual(f.locale, .current)
f.locale = nil
// Locale should go back to current.
XCTAssertEqual(f.locale, .current)
// A nil locale should not crash a subsequent operation
let result: String? = f.string(from: Date())
XCTAssertNotNil(result)
}
func test_setTimeZoneToNil() {
let f = DateFormatter()
// Time zone should be the system one by default.
XCTAssertEqual(f.timeZone, NSTimeZone.system)
f.timeZone = nil
// Time zone should go back to the system one.
XCTAssertEqual(f.timeZone, NSTimeZone.system)
}
func test_setTimeZone() {
// Test two different time zones. Should ensure that if one
// happens to be TimeZone.current, we still get a valid test.
let newYork = TimeZone(identifier: "America/New_York")!
let losAngeles = TimeZone(identifier: "America/Los_Angeles")!
XCTAssertNotEqual(newYork, losAngeles)
// Case 1: New York
let f = DateFormatter()
f.timeZone = newYork
XCTAssertEqual(f.timeZone, newYork)
// Case 2: Los Angeles
f.timeZone = losAngeles
XCTAssertEqual(f.timeZone, losAngeles)
}
func test_expectedTimeZone() {
let newYork = TimeZone(identifier: "America/New_York")!
let losAngeles = TimeZone(identifier: "America/Los_Angeles")!
XCTAssertNotEqual(newYork, losAngeles)
let now = Date()
let f = DateFormatter()
f.dateFormat = "z"
f.locale = Locale(identifier: "en_US_POSIX")
// Case 1: TimeZone.current
// This case can catch some issues that cause TimeZone.current to be
// treated like GMT, but it doesn't work if TimeZone.current is GMT.
// If you do find an issue like this caused by this first case,
// it would benefit from a more specific test that fails when
// TimeZone.current is GMT as well.
// (ex. TestTimeZone.test_systemTimeZoneName)
// Disabled because of: https://bugs.swift.org/browse/SR-8994
// f.timeZone = TimeZone.current
// XCTAssertEqual(f.string(from: now), TimeZone.current.abbreviation())
// Case 2: New York
f.timeZone = newYork
XCTAssertEqual(f.string(from: now), newYork.abbreviation())
// Case 3: Los Angeles
f.timeZone = losAngeles
XCTAssertEqual(f.string(from: now), losAngeles.abbreviation())
}
func test_dateFrom() throws {
let formatter = DateFormatter()
formatter.timeZone = TimeZone(identifier: "UTC")
formatter.dateFormat = "yyyy-MM-dd"
XCTAssertNil(formatter.date(from: "2018-03-09T10:25:16+01:00"))
let d1 = try formatter.date(from: "2018-03-09").unwrapped()
XCTAssertEqual(d1.description, "2018-03-09 00:00:00 +0000")
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
XCTAssertNil(formatter.date(from: "2018-03-09"))
let d2 = try formatter.date(from: "2018-03-09T10:25:16+01:00").unwrapped()
XCTAssertEqual(d2.description, "2018-03-09 09:25:16 +0000")
}
func test_dateParseAndFormatWithJapaneseCalendar() throws {
let formatter = DateFormatter()
formatter.locale = Locale(identifier: "ja_JP")
formatter.calendar = Calendar(identifier: .japanese)
formatter.dateFormat = "Gy年M月dd日 HH:mm"
formatter.timeZone = TimeZone(abbreviation: "JST")
// parse test
let parsed = formatter.date(from: "平成31年4月30日 23:10")
XCTAssertEqual(parsed?.timeIntervalSince1970, 1556633400) // April 30, 2019, 11:10 PM (JST)
// format test
let dateString = formatter.string(from: Date(timeIntervalSince1970: 1556633400)) // April 30, 2019, 11:10 PM (JST)
XCTAssertEqual(dateString, "平成31年4月30日 23:10")
}
func test_orderOfPropertySetters() throws {
// This produces a .count factorial number of arrays
func combinations<T>(of a: [T]) -> [[T]] {
precondition(!a.isEmpty)
if a.count == 1 { return [a] }
if a.count == 2 { return [ [a[0], a[1]], [ a[1], a[0]] ] }
var result: [[T]] = []
for idx in a.startIndex..<a.endIndex {
let x = a[idx]
var b: [T] = a
b.remove(at: idx)
for var c in combinations(of: b) {
c.append(x)
result.append(c)
}
}
return result
}
let formatter = DateFormatter()
formatter.timeZone = TimeZone(identifier: "CET")
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
let date = try formatter.date(from: "2019-05-05T12:52:10").unwrapped()
let applySettings: [(String, (DateFormatter) -> Void)] =
[(".timeZone", {
$0.timeZone = TimeZone(identifier: "Europe/Oslo")
}),
(".calendar", {
$0.calendar = Calendar(identifier: .gregorian)
}),
(".locale", {
$0.locale = Locale(identifier: "nb")
}),
(".dateStyle", {
$0.dateStyle = .medium
}),
(".timeStyle", {
$0.timeStyle = .medium
})
]
// Test all of the combinations of setting the properties produces the same output
let expected = "5. mai 2019, 12:52:10"
for settings in combinations(of: applySettings) {
let f = DateFormatter()
settings.forEach { $0.1(f) }
XCTAssertEqual(f.dateFormat, "d. MMM y, HH:mm:ss")
let formattedString = f.string(from: date)
if formattedString != expected {
let applied = settings.map { $0.0 }.joined(separator: ",")
XCTFail("\(formattedString) != \(expected) using settings applied in order \(applied)")
}
}
}
}