From cfd2f3c46eaefcaa8795a777d5e01fa85dd850a8 Mon Sep 17 00:00:00 2001 From: Edward Welbourne Date: Tue, 26 Nov 2019 13:44:30 +0100 Subject: [PATCH] Work around macOS's inconsistency in naming of India's time-zone MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit macOS fails to create a zone for the name its own systemTimeZone claims to have (see new comment). So make sure we do consistently recognize the name systemTimeZoneId() returns, using systemTimeZone from which we got its name. Add minimal testing of system time-zone. Fixes: QTBUG-80173 Change-Id: I42f21efbd7c439158fee954d555414bb180e7f8f Reviewed-by: Tor Arne Vestbø --- src/corelib/time/qtimezoneprivate_mac.mm | 11 +++++++++++ tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp | 9 +++++++++ 2 files changed, 20 insertions(+) diff --git a/src/corelib/time/qtimezoneprivate_mac.mm b/src/corelib/time/qtimezoneprivate_mac.mm index d3c4fbe5daf..4509e316f9e 100644 --- a/src/corelib/time/qtimezoneprivate_mac.mm +++ b/src/corelib/time/qtimezoneprivate_mac.mm @@ -1,5 +1,6 @@ /**************************************************************************** ** +** Copyright (C) 2019 The Qt Company Ltd. ** Copyright (C) 2013 John Layt ** Contact: https://www.qt.io/licensing/ ** @@ -94,6 +95,16 @@ void QMacTimeZonePrivate::init(const QByteArray &ianaId) if (m_nstz) m_id = ianaId; } + if (!m_nstz) { + // macOS has been seen returning a systemTimeZone which reports its name + // as Asia/Kolkata, which doesn't appear in knownTimeZoneNames (which + // calls the zone Asia/Calcutta). So explicitly check for the name + // systemTimeZoneId() returns, and use systemTimeZone if we get it: + m_nstz = [NSTimeZone.systemTimeZone retain]; + Q_ASSERT(m_nstz); + if (QString::fromNSString(m_nstz.name).toUtf8() == ianaId) + m_id = ianaId; + } } QString QMacTimeZonePrivate::comment() const diff --git a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp index f425691d9c9..4fdcbc78097 100644 --- a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp +++ b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp @@ -46,6 +46,7 @@ private slots: // Public class default system tests void createTest(); void nullTest(); + void systemZone(); void dataStreamTest(); void isTimeZoneIdAvailable(); void availableTimeZoneIds(); @@ -315,6 +316,14 @@ void tst_QTimeZone::nullTest() QCOMPARE(data.daylightTimeOffset, std::numeric_limits::min()); } +void tst_QTimeZone::systemZone() +{ + const QTimeZone zone = QTimeZone::systemTimeZone(); + QVERIFY(zone.isValid()); + QCOMPARE(zone.id(), QTimeZone::systemTimeZoneId()); + QCOMPARE(zone, QTimeZone(QTimeZone::systemTimeZoneId())); +} + void tst_QTimeZone::dataStreamTest() { // Test the OffsetFromUtc backend serialization. First with a custom timezone: