1/*
2 ****************************************************************************
3 * Copyright (c) 1997-2013, International Business Machines Corporation and *
4 * others. All Rights Reserved.                                             *
5 ****************************************************************************
6 */
7
8#include "unicode/utypes.h"
9
10#if !UCONFIG_NO_FORMATTING
11
12#include "unicode/utmscale.h"
13#include "unicode/ucal.h"
14
15#include "cintltst.h"
16
17#include <stdlib.h>
18#include <time.h>
19
20#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
21
22#define LOOP_COUNT 10000
23
24static void TestAPI(void);
25static void TestData(void);
26static void TestMonkey(void);
27static void TestDotNet(void);
28
29void addUtmsTest(TestNode** root);
30
31void addUtmsTest(TestNode** root)
32{
33    addTest(root, &TestAPI, "tsformat/utmstest/TestAPI");
34    addTest(root, &TestData, "tsformat/utmstest/TestData");
35    addTest(root, &TestMonkey, "tsformat/utmstest/TestMonkey");
36    addTest(root, &TestDotNet, "tsformat/utmstest/TestDotNet");
37}
38
39/**
40 * Return a random int64_t where U_INT64_MIN <= ran <= U_INT64_MAX.
41 */
42static uint64_t randomInt64(void)
43{
44    int64_t ran = 0;
45    int32_t i;
46    static UBool initialized = FALSE;
47
48    if (!initialized) {
49        srand((unsigned)time(NULL));
50        initialized = TRUE;
51    }
52
53    /* Assume rand has at least 12 bits of precision */
54    for (i = 0; i < sizeof(ran); i += 1) {
55        ((char*)&ran)[i] = (char)((rand() & 0x0FF0) >> 4);
56    }
57
58    return ran;
59}
60
61static int64_t ranInt;
62static int64_t ranMin;
63static int64_t ranMax;
64
65static void initRandom(int64_t min, int64_t max)
66{
67    uint64_t interval = max - min;
68
69    ranMin = min;
70    ranMax = max;
71    ranInt = 0;
72
73    /* Verify that we don't have a huge interval. */
74    if (interval < (uint64_t)U_INT64_MAX) {
75        ranInt = interval;
76    }
77}
78
79static int64_t randomInRange(void)
80{
81    int64_t value;
82
83    if (ranInt != 0) {
84        value = randomInt64() % ranInt;
85
86        if (value < 0) {
87            value = -value;
88        }
89
90        value += ranMin;
91    } else {
92        do {
93            value = randomInt64();
94        } while (value < ranMin || value > ranMax);
95    }
96
97    return value;
98}
99
100static void roundTripTest(int64_t value, UDateTimeScale scale)
101{
102    UErrorCode status = U_ZERO_ERROR;
103    int64_t rt = utmscale_toInt64(utmscale_fromInt64(value, scale, &status), scale, &status);
104
105    if (rt != value) {
106        log_err("Round-trip error: time scale = %d, value = %lld, round-trip = %lld.\n", scale, value, rt);
107    }
108}
109
110static void toLimitTest(int64_t toLimit, int64_t fromLimit, UDateTimeScale scale)
111{
112    UErrorCode status = U_ZERO_ERROR;
113    int64_t result = utmscale_toInt64(toLimit, scale, &status);
114
115    if (result != fromLimit) {
116        log_err("toLimit failure: scale = %d, toLimit = %lld , utmscale_toInt64(toLimit, scale, &status) = %lld, fromLimit = %lld.\n",
117            scale, toLimit, result, fromLimit);
118    }
119}
120
121static void epochOffsetTest(int64_t epochOffset, int64_t units, UDateTimeScale scale)
122{
123    UErrorCode status = U_ZERO_ERROR;
124    int64_t universal = 0;
125    int64_t universalEpoch = epochOffset * units;
126    int64_t local = utmscale_toInt64(universalEpoch, scale, &status);
127
128    if (local != 0) {
129        log_err("utmscale_toInt64(epochOffset, scale, &status): scale = %d epochOffset = %lld, result = %lld.\n", scale, epochOffset, local);
130    }
131
132    local = utmscale_toInt64(0, scale, &status);
133
134    if (local != -epochOffset) {
135        log_err("utmscale_toInt64(0, scale): scale = %d, result = %lld.\n", scale, local);
136    }
137
138    universal = utmscale_fromInt64(-epochOffset, scale, &status);
139
140    if (universal != 0) {
141        log_err("from(-epochOffest, scale): scale = %d, epochOffset = %lld, result = %lld.\n", scale, epochOffset, universal);
142    }
143
144    universal = utmscale_fromInt64(0, scale, &status);
145
146    if (universal != universalEpoch) {
147        log_err("utmscale_fromInt64(0, scale): scale = %d, result = %lld.\n", scale, universal);
148    }
149}
150
151static void TestEpochOffsets(void)
152{
153    UErrorCode status = U_ZERO_ERROR;
154    int32_t scale;
155
156    for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
157        int64_t units       = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_UNITS_VALUE, &status);
158        int64_t epochOffset = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_EPOCH_OFFSET_VALUE, &status);
159
160        epochOffsetTest(epochOffset, units, (UDateTimeScale)scale);
161    }
162}
163
164static void TestFromLimits(void)
165{
166    UErrorCode status = U_ZERO_ERROR;
167    int32_t scale;
168
169    for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
170        int64_t fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
171        int64_t fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
172
173        roundTripTest(fromMin, (UDateTimeScale)scale);
174        roundTripTest(fromMax, (UDateTimeScale)scale);
175    }
176}
177
178static void TestToLimits(void)
179{
180    UErrorCode status = U_ZERO_ERROR;
181    int32_t scale;
182
183    for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
184        int64_t fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
185        int64_t fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
186        int64_t toMin   = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MIN_VALUE, &status);
187        int64_t toMax   = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MAX_VALUE, &status);
188
189        toLimitTest(toMin, fromMin, (UDateTimeScale)scale);
190        toLimitTest(toMax, fromMax, (UDateTimeScale)scale);
191    }
192}
193
194static void TestFromInt64(void)
195{
196    int32_t scale;
197    int64_t result;
198    UErrorCode status = U_ZERO_ERROR;
199
200    result = utmscale_fromInt64(0, -1, &status);
201    (void)result;    /* Suppress set but not used warning. */
202    if (status != U_ILLEGAL_ARGUMENT_ERROR) {
203        log_err("utmscale_fromInt64(0, -1, status) did not set status to U_ILLEGAL_ARGUMENT_ERROR.\n");
204    }
205
206    for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
207        int64_t fromMin, fromMax;
208
209        status = U_ZERO_ERROR;
210        fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
211        fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
212
213        status = U_ZERO_ERROR;
214        result = utmscale_fromInt64(0, (UDateTimeScale)scale, &status);
215        if (status == U_ILLEGAL_ARGUMENT_ERROR) {
216            log_err("utmscale_fromInt64(0, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
217        }
218
219        status = U_ZERO_ERROR;
220        result = utmscale_fromInt64(fromMin, (UDateTimeScale)scale, &status);
221        if (status == U_ILLEGAL_ARGUMENT_ERROR) {
222            log_err("utmscale_fromInt64(fromMin, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
223        }
224
225        if (fromMin > U_INT64_MIN) {
226            status = U_ZERO_ERROR;
227            result = utmscale_fromInt64(fromMin - 1, (UDateTimeScale)scale, &status);
228            if (status != U_ILLEGAL_ARGUMENT_ERROR) {
229                log_err("utmscale_fromInt64(fromMin - 1, %d, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
230            }
231        }
232
233        status = U_ZERO_ERROR;
234        result = utmscale_fromInt64(fromMax, (UDateTimeScale)scale, &status);
235        if (status == U_ILLEGAL_ARGUMENT_ERROR) {
236            log_err("utmscale_fromInt64(fromMax, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
237        }
238
239        if (fromMax < U_INT64_MAX) {
240            status = U_ZERO_ERROR;
241            result = utmscale_fromInt64(fromMax + 1, (UDateTimeScale)scale, &status);
242            if (status != U_ILLEGAL_ARGUMENT_ERROR) {
243                log_err("utmscale_fromInt64(fromMax + 1, %d, &status) didn't generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
244            }
245        }
246    }
247
248    status = U_ZERO_ERROR;
249    result = utmscale_fromInt64(0, UDTS_MAX_SCALE, &status);
250    if (status != U_ILLEGAL_ARGUMENT_ERROR) {
251        log_err("utmscale_fromInt64(0, UDTS_MAX_SCALE, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n");
252    }
253}
254
255static void TestToInt64(void)
256{
257    int32_t scale;
258    int64_t result;
259    UErrorCode status = U_ZERO_ERROR;
260
261    result = utmscale_toInt64(0, -1, &status);
262    (void)result;    /* suppress set but not used warning. */
263    if (status != U_ILLEGAL_ARGUMENT_ERROR) {
264        log_err("utmscale_toInt64(0, -1, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n");
265    }
266
267    for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
268        int64_t toMin, toMax;
269
270        status = U_ZERO_ERROR;
271        toMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MIN_VALUE, &status);
272        toMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MAX_VALUE, &status);
273
274        status = U_ZERO_ERROR;
275        result = utmscale_toInt64(0, (UDateTimeScale)scale, &status);
276        if (status == U_ILLEGAL_ARGUMENT_ERROR) {
277            log_err("utmscale_toInt64(0, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
278        }
279
280        status = U_ZERO_ERROR;
281        result = utmscale_toInt64(toMin, (UDateTimeScale)scale, &status);
282        if (status == U_ILLEGAL_ARGUMENT_ERROR) {
283            log_err("utmscale_toInt64(toMin, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
284        }
285
286        if (toMin > U_INT64_MIN) {
287            status = U_ZERO_ERROR;
288            result = utmscale_toInt64(toMin - 1, (UDateTimeScale)scale, &status);
289            if (status != U_ILLEGAL_ARGUMENT_ERROR) {
290                log_err("utmscale_toInt64(toMin - 1, %d, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
291            }
292        }
293
294
295        status = U_ZERO_ERROR;
296        result = utmscale_toInt64(toMax, (UDateTimeScale)scale, &status);
297        if (status == U_ILLEGAL_ARGUMENT_ERROR) {
298            log_err("utmscale_toInt64(toMax, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
299        }
300
301        if (toMax < U_INT64_MAX) {
302            status = U_ZERO_ERROR;
303            result = utmscale_toInt64(toMax + 1, (UDateTimeScale)scale, &status);
304            if (status != U_ILLEGAL_ARGUMENT_ERROR) {
305                log_err("utmscale_toInt64(toMax + 1, %d, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
306            }
307        }
308    }
309
310    status = U_ZERO_ERROR;
311    result = utmscale_toInt64(0, UDTS_MAX_SCALE, &status);
312    if (status != U_ILLEGAL_ARGUMENT_ERROR) {
313        log_err("utmscale_toInt64(0, UDTS_MAX_SCALE, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n");
314    }
315}
316
317static void TestAPI(void)
318{
319    TestFromInt64();
320    TestToInt64();
321}
322
323static void TestData(void)
324{
325    TestEpochOffsets();
326    TestFromLimits();
327    TestToLimits();
328}
329
330static void TestMonkey(void)
331{
332    int32_t scale;
333    UErrorCode status = U_ZERO_ERROR;
334
335    for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
336        int64_t fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
337        int64_t fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
338        int32_t i;
339
340        initRandom(fromMin, fromMax);
341
342        for (i = 0; i < LOOP_COUNT; i += 1) {
343            int64_t value = randomInRange();
344
345            roundTripTest(value, (UDateTimeScale)scale);
346        }
347    }
348}
349
350struct DotNetDateTimeTicks {
351    int32_t year;
352    int32_t month;
353    int32_t day;
354    int64_t ticks;
355};
356typedef struct DotNetDateTimeTicks DotNetDateTimeTicks;
357
358/*
359 * This data was generated by C++.Net code like
360 * Console::WriteLine(L"    {{ {0}, 1, 1, INT64_C({1}) }},", year, DateTime(year, 1, 1).Ticks);
361 * with the DateTime constructor taking int values for year, month, and date.
362 */
363static const DotNetDateTimeTicks dotNetDateTimeTicks[]={
364    /* year, month, day, ticks */
365    { 100, 1, 1, INT64_C(31241376000000000) },
366    { 100, 3, 1, INT64_C(31292352000000000) },
367    { 200, 1, 1, INT64_C(62798112000000000) },
368    { 200, 3, 1, INT64_C(62849088000000000) },
369    { 300, 1, 1, INT64_C(94354848000000000) },
370    { 300, 3, 1, INT64_C(94405824000000000) },
371    { 400, 1, 1, INT64_C(125911584000000000) },
372    { 400, 3, 1, INT64_C(125963424000000000) },
373    { 500, 1, 1, INT64_C(157469184000000000) },
374    { 500, 3, 1, INT64_C(157520160000000000) },
375    { 600, 1, 1, INT64_C(189025920000000000) },
376    { 600, 3, 1, INT64_C(189076896000000000) },
377    { 700, 1, 1, INT64_C(220582656000000000) },
378    { 700, 3, 1, INT64_C(220633632000000000) },
379    { 800, 1, 1, INT64_C(252139392000000000) },
380    { 800, 3, 1, INT64_C(252191232000000000) },
381    { 900, 1, 1, INT64_C(283696992000000000) },
382    { 900, 3, 1, INT64_C(283747968000000000) },
383    { 1000, 1, 1, INT64_C(315253728000000000) },
384    { 1000, 3, 1, INT64_C(315304704000000000) },
385    { 1100, 1, 1, INT64_C(346810464000000000) },
386    { 1100, 3, 1, INT64_C(346861440000000000) },
387    { 1200, 1, 1, INT64_C(378367200000000000) },
388    { 1200, 3, 1, INT64_C(378419040000000000) },
389    { 1300, 1, 1, INT64_C(409924800000000000) },
390    { 1300, 3, 1, INT64_C(409975776000000000) },
391    { 1400, 1, 1, INT64_C(441481536000000000) },
392    { 1400, 3, 1, INT64_C(441532512000000000) },
393    { 1500, 1, 1, INT64_C(473038272000000000) },
394    { 1500, 3, 1, INT64_C(473089248000000000) },
395    { 1600, 1, 1, INT64_C(504595008000000000) },
396    { 1600, 3, 1, INT64_C(504646848000000000) },
397    { 1700, 1, 1, INT64_C(536152608000000000) },
398    { 1700, 3, 1, INT64_C(536203584000000000) },
399    { 1800, 1, 1, INT64_C(567709344000000000) },
400    { 1800, 3, 1, INT64_C(567760320000000000) },
401    { 1900, 1, 1, INT64_C(599266080000000000) },
402    { 1900, 3, 1, INT64_C(599317056000000000) },
403    { 2000, 1, 1, INT64_C(630822816000000000) },
404    { 2000, 3, 1, INT64_C(630874656000000000) },
405    { 2100, 1, 1, INT64_C(662380416000000000) },
406    { 2100, 3, 1, INT64_C(662431392000000000) },
407    { 2200, 1, 1, INT64_C(693937152000000000) },
408    { 2200, 3, 1, INT64_C(693988128000000000) },
409    { 2300, 1, 1, INT64_C(725493888000000000) },
410    { 2300, 3, 1, INT64_C(725544864000000000) },
411    { 2400, 1, 1, INT64_C(757050624000000000) },
412    { 2400, 3, 1, INT64_C(757102464000000000) },
413    { 2500, 1, 1, INT64_C(788608224000000000) },
414    { 2500, 3, 1, INT64_C(788659200000000000) },
415    { 2600, 1, 1, INT64_C(820164960000000000) },
416    { 2600, 3, 1, INT64_C(820215936000000000) },
417    { 2700, 1, 1, INT64_C(851721696000000000) },
418    { 2700, 3, 1, INT64_C(851772672000000000) },
419    { 2800, 1, 1, INT64_C(883278432000000000) },
420    { 2800, 3, 1, INT64_C(883330272000000000) },
421    { 2900, 1, 1, INT64_C(914836032000000000) },
422    { 2900, 3, 1, INT64_C(914887008000000000) },
423    { 3000, 1, 1, INT64_C(946392768000000000) },
424    { 3000, 3, 1, INT64_C(946443744000000000) },
425    { 1, 1, 1, INT64_C(0) },
426    { 1601, 1, 1, INT64_C(504911232000000000) },
427    { 1899, 12, 31, INT64_C(599265216000000000) },
428    { 1904, 1, 1, INT64_C(600527520000000000) },
429    { 1970, 1, 1, INT64_C(621355968000000000) },
430    { 2001, 1, 1, INT64_C(631139040000000000) },
431    { 9900, 3, 1, INT64_C(3123873216000000000) },
432    { 9999, 12, 31, INT64_C(3155378112000000000) }
433};
434
435/*
436 * ICU's Universal Time Scale is designed to be tick-for-tick compatible with
437 * .Net System.DateTime. Verify that this is so for the
438 * .Net-supported date range (years 1-9999 AD).
439 * This requires a proleptic Gregorian calendar because that's what .Net uses.
440 * Proleptic: No Julian/Gregorian switchover, or a switchover before
441 * any date that we test, that is, before 0001 AD.
442 */
443static void
444TestDotNet() {
445    static const UChar utc[] = { 0x45, 0x74, 0x63, 0x2f, 0x47, 0x4d, 0x54, 0 }; /* "Etc/GMT" */
446    const int32_t dayMillis = 86400 * INT64_C(1000);    /* 1 day = 86400 seconds */
447    const int64_t dayTicks = 86400 * INT64_C(10000000);
448    const DotNetDateTimeTicks *dt;
449    UCalendar *cal;
450    UErrorCode errorCode;
451    UDate icuDate;
452    int64_t ticks, millis;
453    int32_t i;
454
455    /* Open a proleptic Gregorian calendar. */
456    errorCode = U_ZERO_ERROR;
457    cal = ucal_open(utc, -1, "", UCAL_GREGORIAN, &errorCode);
458    ucal_setGregorianChange(cal, -1000000 * (dayMillis * (UDate)1), &errorCode);
459    if(U_FAILURE(errorCode)) {
460        log_data_err("ucal_open(UTC/proleptic Gregorian) failed: %s - (Are you missing data?)\n", u_errorName(errorCode));
461        ucal_close(cal);
462        return;
463    }
464    for(i = 0; i < LENGTHOF(dotNetDateTimeTicks); ++i) {
465        /* Test conversion from .Net/Universal time to ICU time. */
466        dt = dotNetDateTimeTicks + i;
467        millis = utmscale_toInt64(dt->ticks, UDTS_ICU4C_TIME, &errorCode);
468        ucal_clear(cal);
469        ucal_setDate(cal, dt->year, dt->month - 1, dt->day, &errorCode); /* Java & ICU use January = month 0. */
470        icuDate = ucal_getMillis(cal, &errorCode);
471        if(millis != icuDate) {
472            /* Print days not millis to stay within printf() range. */
473            log_err("utmscale_toInt64(ticks[%d], ICU4C)=%dd != %dd=ucal_getMillis(%04d-%02d-%02d)\n",
474                    (int)i, (int)(millis/dayMillis), (int)(icuDate/dayMillis), (int)dt->year, (int)dt->month, (int)dt->day);
475        }
476
477        /* Test conversion from ICU time to .Net/Universal time. */
478        ticks = utmscale_fromInt64((int64_t)icuDate, UDTS_ICU4C_TIME, &errorCode);
479        if(ticks != dt->ticks) {
480            /* Print days not ticks to stay within printf() range. */
481            log_err("utmscale_fromInt64(date[%d], ICU4C)=%dd != %dd=.Net System.DateTime(%04d-%02d-%02d).Ticks\n",
482                    (int)i, (int)(ticks/dayTicks), (int)(dt->ticks/dayTicks), (int)dt->year, (int)dt->month, (int)dt->day);
483        }
484    }
485
486    ucal_close(cal);
487}
488
489#endif /* #if !UCONFIG_NO_FORMATTING */
490