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Test Russia's post-DST transitions are reported correctly

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This is a regression test for bugs resulting from failure to take
account of the MS TZ APIs fake-DST handling of standard-time
transitions happening during DST.  Has to skip the 2014 test on Win7,
as it's so old it doesn't know about the (for it) "future" transition.

Task-number: QTBUG-42021
Change-Id: I853b86d03a86f0269371bf1622bf63882fb8ee5d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Edward Welbourne 2017-10-30 12:08:36 +01:00
parent 1d2e3a5452
commit 4cce7dc19d
1 changed files with 62 additions and 0 deletions
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62
tests/auto/corelib/tools/qtimezone/tst_qtimezone.cpp
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@ -45,6 +45,8 @@ private slots:
void dataStreamTest();
void isTimeZoneIdAvailable();
void availableTimeZoneIds();
void specificTransition_data();
void specificTransition();
void transitionEachZone_data();
void transitionEachZone();
void checkOffset_data();
@ -398,6 +400,66 @@ void tst_QTimeZone::isTimeZoneIdAvailable()
#endif // QT_BUILD_INTERNAL
}
void tst_QTimeZone::specificTransition_data()
{
QTest::addColumn<QByteArray>("zone");
QTest::addColumn<QDate>("start");
QTest::addColumn<QDate>("stop");
QTest::addColumn<int>("count");
QTest::addColumn<QDateTime>("atUtc");
// In minutes:
QTest::addColumn<int>("offset");
QTest::addColumn<int>("stdoff");
QTest::addColumn<int>("dstoff");
// Moscow ditched DST on 2010-10-31 but has since changed standard offset twice.
#ifdef Q_OS_WIN
// Win7 is too old to know about this transition:
if (QOperatingSystemVersion::current() > QOperatingSystemVersion::Windows7)
#endif
{
QTest::newRow("Moscow/2014") // From original bug-report
<< QByteArray("Europe/Moscow")
<< QDate(2011, 4, 1) << QDate(2017, 12,31) << 1
<< QDateTime(QDate(2014, 10, 26), QTime(2, 0, 0),
Qt::OffsetFromUTC, 4 * 3600).toUTC()
<< 3 * 3600 << 3 * 3600 << 0;
}
QTest::newRow("Moscow/2011") // Transition on 2011-03-27
<< QByteArray("Europe/Moscow")
<< QDate(2010, 11, 1) << QDate(2014, 10, 25) << 1
<< QDateTime(QDate(2011, 3, 27), QTime(2, 0, 0),
Qt::OffsetFromUTC, 3 * 3600).toUTC()
<< 4 * 3600 << 4 * 3600 << 0;
}
void tst_QTimeZone::specificTransition()
{
// Regression test for QTBUG-42021 (on MS-Win)
QFETCH(QByteArray, zone);
QFETCH(QDate, start);
QFETCH(QDate, stop);
QFETCH(int, count);
// No attempt to check abbreviations; to much cross-platform variation.
QFETCH(QDateTime, atUtc);
QFETCH(int, offset);
QFETCH(int, stdoff);
QFETCH(int, dstoff);
QTimeZone timeZone(zone);
if (!timeZone.isValid())
QSKIP("Missing time-zone data");
QTimeZone::OffsetDataList transits =
timeZone.transitions(QDateTime(start, QTime(0, 0), timeZone),
QDateTime(stop, QTime(23, 59), timeZone));
QCOMPARE(transits.length(), count);
const QTimeZone::OffsetData &transition = transits.at(0);
QCOMPARE(transition.offsetFromUtc, offset);
QCOMPARE(transition.standardTimeOffset, stdoff);
QCOMPARE(transition.daylightTimeOffset, dstoff);
QCOMPARE(transition.atUtc, atUtc);
}
void tst_QTimeZone::transitionEachZone_data()
{
QTest::addColumn<QByteArray>("zone");