337 lines
12 KiB
C++
337 lines
12 KiB
C++
/********************************************************************
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* COPYRIGHT:
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* Copyright (c) 1997-1999, International Business Machines Corporation and
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* others. All Rights Reserved.
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********************************************************************/
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#include "dtfmtrtts.h"
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#include <stdio.h>
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#include "unicode/datefmt.h"
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#include "unicode/smpdtfmt.h"
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#include "unicode/gregocal.h"
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// *****************************************************************************
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// class DateFormatRoundTripTest
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// *****************************************************************************
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// Useful for turning up subtle bugs: Change the following to TRUE, recompile,
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// and run while at lunch.
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bool_t DateFormatRoundTripTest::INFINITE = FALSE; // Warning -- makes test run infinite loop!!!
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// If SPARSENESS is > 0, we don't run each exhaustive possibility.
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// There are 24 total possible tests per each locale. A SPARSENESS
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// of 12 means we run half of them. A SPARSENESS of 23 means we run
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// 1 of them. SPARSENESS _must_ be in the range 0..23.
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int32_t DateFormatRoundTripTest::SPARSENESS = 18;
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int32_t DateFormatRoundTripTest::TRIALS = 4;
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int32_t DateFormatRoundTripTest::DEPTH = 5;
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#define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
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void
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DateFormatRoundTripTest::runIndexedTest( int32_t index, bool_t exec, char* &name, char* par )
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{
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// if (exec) logln((UnicodeString)"TestSuite NumberFormatRegressionTest");
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switch (index) {
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CASE(0,TestDateFormatRoundTrip)
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default: name = ""; break;
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}
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}
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bool_t
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DateFormatRoundTripTest::failure(UErrorCode status, const char* msg)
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{
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if(U_FAILURE(status)) {
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errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
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return TRUE;
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}
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return FALSE;
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}
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// ==
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void DateFormatRoundTripTest::TestDateFormatRoundTrip()
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{
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UErrorCode status = U_ZERO_ERROR;
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dateFormat = new SimpleDateFormat("EEE MMM dd HH:mm:ss.SSS zzz yyyy G", status);
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failure(status, "new SimpleDateFormat");
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getFieldCal = Calendar::createInstance(status);
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failure(status, "Calendar::createInstance");
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int32_t locCount = 0;
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const Locale *avail = DateFormat::getAvailableLocales(locCount);
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logln("DateFormat available locales: " + locCount);
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if(quick) {
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if(locCount > 5)
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locCount = 5;
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logln("Quick mode: only testing first 5 Locales");
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}
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TimeZone *tz = TimeZone::createDefault();
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UnicodeString temp;
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logln("Default TimeZone: " + tz->getID(temp));
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delete tz;
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if (INFINITE) {
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// Special infinite loop test mode for finding hard to reproduce errors
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Locale loc = Locale::getDefault();
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logln("ENTERING INFINITE TEST LOOP FOR Locale: " + loc.getDisplayName(temp));
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for(;;)
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test(loc);
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}
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else {
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test(Locale::getDefault());
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for (int i=0; i < locCount; ++i) {
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test(avail[i]);
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}
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}
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delete dateFormat;
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delete getFieldCal;
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}
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void DateFormatRoundTripTest::test(const Locale& loc)
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{
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UnicodeString temp;
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if( ! INFINITE)
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logln("Locale: " + loc.getDisplayName(temp));
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// Total possibilities = 24
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// 4 date
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// 4 time
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// 16 date-time
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bool_t TEST_TABLE [24];//= new boolean[24];
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int32_t i = 0;
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for(i = 0; i < 24; ++i)
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TEST_TABLE[i] = TRUE;
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// If we have some sparseness, implement it here. Sparseness decreases
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// test time by eliminating some tests, up to 23.
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for(i = 0; i < SPARSENESS; ) {
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int random = (int)(randFraction() * 24);
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if (random >= 0 && random < 24 && TEST_TABLE[i]) {
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TEST_TABLE[i] = FALSE;
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++i;
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}
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}
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int32_t itable = 0;
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int32_t style = 0;
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for(style = DateFormat::FULL; style <= DateFormat::SHORT; ++style) {
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if(TEST_TABLE[itable++]) {
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DateFormat *df = DateFormat::createDateInstance((DateFormat::EStyle)style, loc);
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test(df);
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delete df;
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}
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}
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for(style = DateFormat::FULL; style <= DateFormat::SHORT; ++style) {
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if (TEST_TABLE[itable++]) {
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DateFormat *df = DateFormat::createTimeInstance((DateFormat::EStyle)style, loc);
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test(df, TRUE);
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delete df;
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}
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}
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for(int32_t dstyle = DateFormat::FULL; dstyle <= DateFormat::SHORT; ++dstyle) {
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for(int32_t tstyle = DateFormat::FULL; tstyle <= DateFormat::SHORT; ++tstyle) {
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if(TEST_TABLE[itable++]) {
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DateFormat *df = DateFormat::createDateTimeInstance((DateFormat::EStyle)dstyle, (DateFormat::EStyle)tstyle, loc);
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test(df);
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delete df;
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}
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}
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}
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}
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void DateFormatRoundTripTest::test(DateFormat *fmt, bool_t timeOnly)
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{
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UnicodeString pat;
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if(fmt->getDynamicClassID() != SimpleDateFormat::getStaticClassID()) {
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errln("DateFormat wasn't a SimpleDateFormat");
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return;
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}
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pat = ((SimpleDateFormat*)fmt)->toPattern(pat);
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// NOTE TO MAINTAINER
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// This indexOf check into the pattern needs to be refined to ignore
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// quoted characters. Currently, this isn't a problem with the locale
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// patterns we have, but it may be a problem later.
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bool_t hasEra = (pat.indexOf(UnicodeString("G")) != -1);
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bool_t hasZone = (pat.indexOf(UnicodeString("z")) != -1);
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// Because patterns contain incomplete data representing the Date,
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// we must be careful of how we do the roundtrip. We start with
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// a randomly generated Date because they're easier to generate.
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// From this we get a string. The string is our real starting point,
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// because this string should parse the same way all the time. Note
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// that it will not necessarily parse back to the original date because
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// of incompleteness in patterns. For example, a time-only pattern won't
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// parse back to the same date.
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//try {
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for(int i = 0; i < TRIALS; ++i) {
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UDate *d = new UDate [DEPTH];
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UnicodeString *s = new UnicodeString[DEPTH];
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d[0] = generateDate();
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UErrorCode status = U_ZERO_ERROR;
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// We go through this loop until we achieve a match or until
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// the maximum loop count is reached. We record the points at
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// which the date and the string starts to match. Once matching
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// starts, it should continue.
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int loop;
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int dmatch = 0; // d[dmatch].getTime() == d[dmatch-1].getTime()
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int smatch = 0; // s[smatch].equals(s[smatch-1])
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for(loop = 0; loop < DEPTH; ++loop) {
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if (loop > 0) {
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d[loop] = fmt->parse(s[loop-1], status);
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failure(status, "fmt->parse");
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}
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s[loop] = fmt->format(d[loop], s[loop]);
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if(loop > 0) {
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if(smatch == 0) {
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bool_t match = s[loop] == s[loop-1];
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if(smatch == 0) {
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if(match)
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smatch = loop;
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}
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else if( ! match)
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errln("FAIL: String mismatch after match");
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}
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if(dmatch == 0) {
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// {sfb} watch out here, this might not work
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bool_t match = d[loop]/*.getTime()*/ == d[loop-1]/*.getTime()*/;
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if(dmatch == 0) {
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if(match)
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dmatch = loop;
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}
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else if( ! match)
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errln("FAIL: Date mismatch after match");
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}
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if(smatch != 0 && dmatch != 0)
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break;
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}
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}
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// At this point loop == DEPTH if we've failed, otherwise loop is the
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// max(smatch, dmatch), that is, the index at which we have string and
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// date matching.
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// Date usually matches in 2. Exceptions handled below.
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int maxDmatch = 2;
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int maxSmatch = 1;
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if (dmatch > maxDmatch) {
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// Time-only pattern with zone information and a starting date in PST.
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if(timeOnly && hasZone && fmt->getTimeZone().inDaylightTime(d[0], status) && ! failure(status, "TimeZone::inDST()")) {
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maxDmatch = 3;
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maxSmatch = 2;
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}
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}
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// String usually matches in 1. Exceptions are checked for here.
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if(smatch > maxSmatch) { // Don't compute unless necessary
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// Starts in BC, with no era in pattern
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if( ! hasEra && getField(d[0], Calendar::ERA) == GregorianCalendar::BC)
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maxSmatch = 2;
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// Starts in DST, no year in pattern
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else if(fmt->getTimeZone().inDaylightTime(d[0], status) && ! failure(status, "foo") &&
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pat.indexOf(UnicodeString("yyyy")) == -1)
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maxSmatch = 2;
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// Two digit year with zone and year change and zone in pattern
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else if (hasZone &&
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fmt->getTimeZone().inDaylightTime(d[0], status) !=
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fmt->getTimeZone().inDaylightTime(d[dmatch], status) && ! failure(status, "foo") &&
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getField(d[0], Calendar::YEAR) !=
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getField(d[dmatch], Calendar::YEAR) &&
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pat.indexOf(UnicodeString("y")) != -1 &&
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pat.indexOf(UnicodeString("yyyy")) == -1)
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maxSmatch = 2;
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}
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if(dmatch > maxDmatch || smatch > maxSmatch) {
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errln(UnicodeString("Pattern: ") + pat);
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logln(UnicodeString(" Date ") + dmatch + " String " + smatch);
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for(int j = 0; j <= loop && j < DEPTH; ++j) {
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UnicodeString temp;
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FieldPosition pos(FieldPosition::DONT_CARE);
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logln((j>0?" P> ":" ") + dateFormat->format(d[j], temp, pos) + " F> " +
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escape(s[j], temp) +
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(j > 0 && d[j]/*.getTime()*/==d[j-1]/*.getTime()*/?" d==":"") +
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(j > 0 && s[j] == s[j-1]?" s==":""));
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}
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}
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}
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/*}
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catch (ParseException e) {
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errln("Exception: " + e.getMessage());
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logln(e.toString());
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}*/
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}
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/**
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* Return a field of the given date
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*/
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int32_t DateFormatRoundTripTest::getField(UDate d, int32_t f) {
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// Should be synchronized, but we're single threaded so it's ok
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UErrorCode status = U_ZERO_ERROR;
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getFieldCal->setTime(d, status);
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failure(status, "getfieldCal->setTime");
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int32_t ret = getFieldCal->get((Calendar::EDateFields)f, status);
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failure(status, "getfieldCal->get");
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return ret;
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}
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UnicodeString& DateFormatRoundTripTest::escape(const UnicodeString& src, UnicodeString& dst )
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{
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dst.remove();
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for (int32_t i = 0; i < src.length(); ++i) {
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UChar c = src[i];
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if(c < 0x0080)
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dst += c;
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else {
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dst += UnicodeString("[");
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char buf [8];
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sprintf(buf, "%#x", c);
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dst += UnicodeString(buf);
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dst += UnicodeString("]");
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}
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}
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return dst;
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}
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UDate DateFormatRoundTripTest::generateDate()
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{
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double a = randFraction();
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// Now 'a' ranges from 0..1; scale it to range from 0 to 8000 years
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a *= 8000;
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// Range from (4000-1970) BC to (8000-1970) AD
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a -= 4000;
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// Now scale up to ms
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a *= 365.25 * 24 * 60 * 60 * 1000;
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//return new Date((long)a);
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return a;
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}
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//eof
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