338 lines
9.7 KiB
C++
338 lines
9.7 KiB
C++
#include "g_libntptest.h"
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extern "C" {
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#include "ntp_calendar.h"
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}
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#include <string>
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#include <sstream>
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class calendarTest : public libntptest {
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protected:
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static int leapdays(int year);
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std::string CalendarToString(const calendar &cal);
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std::string CalendarToString(const isodate &iso);
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::testing::AssertionResult IsEqual(const calendar &expected, const calendar &actual);
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::testing::AssertionResult IsEqual(const isodate &expected, const isodate &actual);
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std::string DateToString(const calendar &cal);
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std::string DateToString(const isodate &iso);
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::testing::AssertionResult IsEqualDate(const calendar &expected, const calendar &actual);
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::testing::AssertionResult IsEqualDate(const isodate &expected, const isodate &actual);
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};
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// ---------------------------------------------------------------------
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// test support stuff
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// ---------------------------------------------------------------------
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int
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calendarTest::leapdays(int year)
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{
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if (year % 400 == 0)
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return 1;
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if (year % 100 == 0)
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return 0;
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if (year % 4 == 0)
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return 1;
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return 0;
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}
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std::string
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calendarTest::CalendarToString(const calendar &cal) {
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std::ostringstream ss;
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ss << cal.year << "-" << (u_int)cal.month << "-" << (u_int)cal.monthday
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<< " (" << cal.yearday << ") " << (u_int)cal.hour << ":"
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<< (u_int)cal.minute << ":" << (u_int)cal.second;
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return ss.str();
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}
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std::string
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calendarTest:: CalendarToString(const isodate &iso) {
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std::ostringstream ss;
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ss << iso.year << "-" << (u_int)iso.week << "-" << (u_int)iso.weekday
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<< (u_int)iso.hour << ":" << (u_int)iso.minute << ":" << (u_int)iso.second;
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return ss.str();
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}
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::testing::AssertionResult
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calendarTest:: IsEqual(const calendar &expected, const calendar &actual) {
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if (expected.year == actual.year &&
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(!expected.yearday || expected.yearday == actual.yearday) &&
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expected.month == actual.month &&
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expected.monthday == actual.monthday &&
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expected.hour == actual.hour &&
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expected.minute == actual.minute &&
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expected.second == actual.second) {
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return ::testing::AssertionSuccess();
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} else {
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return ::testing::AssertionFailure()
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<< "expected: " << CalendarToString(expected) << " but was "
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<< CalendarToString(actual);
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}
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}
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::testing::AssertionResult
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calendarTest:: IsEqual(const isodate &expected, const isodate &actual) {
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if (expected.year == actual.year &&
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expected.week == actual.week &&
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expected.weekday == actual.weekday &&
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expected.hour == actual.hour &&
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expected.minute == actual.minute &&
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expected.second == actual.second) {
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return ::testing::AssertionSuccess();
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} else {
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return ::testing::AssertionFailure()
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<< "expected: " << CalendarToString(expected) << " but was "
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<< CalendarToString(actual);
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}
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}
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std::string
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calendarTest:: DateToString(const calendar &cal) {
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std::ostringstream ss;
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ss << cal.year << "-" << (u_int)cal.month << "-" << (u_int)cal.monthday
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<< " (" << cal.yearday << ")";
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return ss.str();
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}
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std::string
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calendarTest:: DateToString(const isodate &iso) {
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std::ostringstream ss;
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ss << iso.year << "-" << (u_int)iso.week << "-" << (u_int)iso.weekday;
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return ss.str();
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}
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::testing::AssertionResult
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calendarTest:: IsEqualDate(const calendar &expected, const calendar &actual) {
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if (expected.year == actual.year &&
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(!expected.yearday || expected.yearday == actual.yearday) &&
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expected.month == actual.month &&
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expected.monthday == actual.monthday) {
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return ::testing::AssertionSuccess();
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} else {
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return ::testing::AssertionFailure()
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<< "expected: " << DateToString(expected) << " but was "
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<< DateToString(actual);
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}
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}
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::testing::AssertionResult
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calendarTest:: IsEqualDate(const isodate &expected, const isodate &actual) {
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if (expected.year == actual.year &&
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expected.week == actual.week &&
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expected.weekday == actual.weekday) {
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return ::testing::AssertionSuccess();
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} else {
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return ::testing::AssertionFailure()
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<< "expected: " << DateToString(expected) << " but was "
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<< DateToString(actual);
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}
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}
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// ---------------------------------------------------------------------
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// test cases
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// ---------------------------------------------------------------------
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static const u_short real_month_table[2][13] = {
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/* -*- table for regular years -*- */
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{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
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/* -*- table for leap years -*- */
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{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
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};
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// days in month, with one month wrap-around at both ends
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static const u_short real_month_days[2][14] = {
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/* -*- table for regular years -*- */
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{ 31, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31 },
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/* -*- table for leap years -*- */
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{ 31, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31 }
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};
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// test the day/sec join & split ops, making sure that 32bit
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// intermediate results would definitely overflow and the hi DWORD of
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// the 'vint64' is definitely needed.
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TEST_F(calendarTest, DaySplitMerge) {
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for (int32 day = -1000000; day <= 1000000; day += 100) {
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for (int32 sec = -100000; sec <= 186400; sec += 10000) {
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vint64 merge = ntpcal_dayjoin(day, sec);
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ntpcal_split split = ntpcal_daysplit(&merge);
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int32 eday = day;
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int32 esec = sec;
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while (esec >= 86400) {
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eday += 1;
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esec -= 86400;
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}
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while (esec < 0) {
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eday -= 1;
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esec += 86400;
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}
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EXPECT_EQ(eday, split.hi);
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EXPECT_EQ(esec, split.lo);
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}
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}
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}
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TEST_F(calendarTest, SplitYearDays1) {
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for (int32 eyd = -1; eyd <= 365; eyd++) {
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ntpcal_split split = ntpcal_split_yeardays(eyd, 0);
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if (split.lo >= 0 && split.hi >= 0) {
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EXPECT_GT(12, split.hi);
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EXPECT_GT(real_month_days[0][split.hi+1], split.lo);
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int32 tyd = real_month_table[0][split.hi] + split.lo;
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EXPECT_EQ(eyd, tyd);
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} else
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EXPECT_TRUE(eyd < 0 || eyd > 364);
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}
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}
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TEST_F(calendarTest, SplitYearDays2) {
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for (int32 eyd = -1; eyd <= 366; eyd++) {
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ntpcal_split split = ntpcal_split_yeardays(eyd, 1);
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if (split.lo >= 0 && split.hi >= 0) {
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EXPECT_GT(12, split.hi);
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EXPECT_GT(real_month_days[1][split.hi+1], split.lo);
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int32 tyd = real_month_table[1][split.hi] + split.lo;
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EXPECT_EQ(eyd, tyd);
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} else
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EXPECT_TRUE(eyd < 0 || eyd > 365);
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}
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}
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TEST_F(calendarTest, RataDie1) {
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int32 testDate = 1; // 0001-01-01 (proleptic date)
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calendar expected = { 1, 1, 1, 1 };
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calendar actual;
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ntpcal_rd_to_date(&actual, testDate);
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EXPECT_TRUE(IsEqualDate(expected, actual));
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}
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// check last day of february for first 10000 years
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TEST_F(calendarTest, LeapYears1) {
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calendar dateIn, dateOut;
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for (dateIn.year = 1; dateIn.year < 10000; ++dateIn.year) {
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dateIn.month = 2;
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dateIn.monthday = 28 + leapdays(dateIn.year);
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dateIn.yearday = 31 + dateIn.monthday;
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ntpcal_rd_to_date(&dateOut, ntpcal_date_to_rd(&dateIn));
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EXPECT_TRUE(IsEqualDate(dateIn, dateOut));
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}
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}
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// check first day of march for first 10000 years
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TEST_F(calendarTest, LeapYears2) {
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calendar dateIn, dateOut;
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for (dateIn.year = 1; dateIn.year < 10000; ++dateIn.year) {
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dateIn.month = 3;
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dateIn.monthday = 1;
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dateIn.yearday = 60 + leapdays(dateIn.year);
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ntpcal_rd_to_date(&dateOut, ntpcal_date_to_rd(&dateIn));
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EXPECT_TRUE(IsEqualDate(dateIn, dateOut));
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}
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}
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// Full roundtrip for 1601-01-01 to 2400-12-31
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// checks sequence of rata die numbers and validates date output
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// (since the input is all nominal days of the calendar in that range
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// and the result of the inverse calculation must match the input no
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// invalid output can occur.)
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TEST_F(calendarTest, RoundTripDate) {
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calendar truDate, expDate = { 1600, 0, 12, 31 };;
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int32 truRdn, expRdn = ntpcal_date_to_rd(&expDate);
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int leaps;
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while (expDate.year < 2400) {
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expDate.year++;
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expDate.month = 0;
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expDate.yearday = 0;
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leaps = leapdays(expDate.year);
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while (expDate.month < 12) {
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expDate.month++;
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expDate.monthday = 0;
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while (expDate.monthday < real_month_days[leaps][expDate.month]) {
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expDate.monthday++;
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expDate.yearday++;
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expRdn++;
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truRdn = ntpcal_date_to_rd(&expDate);
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EXPECT_EQ(expRdn, truRdn);
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ntpcal_rd_to_date(&truDate, truRdn);
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EXPECT_TRUE(IsEqualDate(expDate, truDate));
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}
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}
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}
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}
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// Roundtrip testing on calyearstart
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TEST_F(calendarTest, RoundTripYearStart) {
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static const time_t pivot = 0;
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u_int32 ntp, expys, truys;
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calendar date;
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for (ntp = 0; ntp < 0xFFFFFFFFu - 30000000u; ntp += 30000000u) {
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truys = calyearstart(ntp, &pivot);
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ntpcal_ntp_to_date(&date, ntp, &pivot);
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date.month = date.monthday = 1;
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date.hour = date.minute = date.second = 0;
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expys = ntpcal_date_to_ntp(&date);
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EXPECT_EQ(expys, truys);
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}
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}
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// Roundtrip testing on calymonthstart
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TEST_F(calendarTest, RoundTripMonthStart) {
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static const time_t pivot = 0;
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u_int32 ntp, expms, trums;
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calendar date;
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for (ntp = 0; ntp < 0xFFFFFFFFu - 2000000u; ntp += 2000000u) {
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trums = calmonthstart(ntp, &pivot);
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ntpcal_ntp_to_date(&date, ntp, &pivot);
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date.monthday = 1;
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date.hour = date.minute = date.second = 0;
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expms = ntpcal_date_to_ntp(&date);
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EXPECT_EQ(expms, trums);
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}
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}
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// Roundtrip testing on calweekstart
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TEST_F(calendarTest, RoundTripWeekStart) {
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static const time_t pivot = 0;
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u_int32 ntp, expws, truws;
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isodate date;
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for (ntp = 0; ntp < 0xFFFFFFFFu - 600000u; ntp += 600000u) {
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truws = calweekstart(ntp, &pivot);
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isocal_ntp_to_date(&date, ntp, &pivot);
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date.hour = date.minute = date.second = 0;
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date.weekday = 1;
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expws = isocal_date_to_ntp(&date);
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EXPECT_EQ(expws, truws);
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}
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}
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// Roundtrip testing on caldaystart
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TEST_F(calendarTest, RoundTripDayStart) {
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static const time_t pivot = 0;
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u_int32 ntp, expds, truds;
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calendar date;
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for (ntp = 0; ntp < 0xFFFFFFFFu - 80000u; ntp += 80000u) {
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truds = caldaystart(ntp, &pivot);
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ntpcal_ntp_to_date(&date, ntp, &pivot);
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date.hour = date.minute = date.second = 0;
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expds = ntpcal_date_to_ntp(&date);
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EXPECT_EQ(expds, truds);
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}
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}
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