QCalendar: increase coverage by tests

Added tests for aliases and various calendar properties, ensured
dateToJulianDay()'s invalid date branch is exercised. Corrected
assertion when constructing from system and asserted calendarSystem()
is as expected.

Task-number: QTBUG-88183
Change-Id: I510afcb5d9d115f68148d1f679f3224d712f92f4
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
(cherry picked from commit 4785e39156312c995c39e68c8f80f2efba71c49f)
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 101 insertions, 7 deletions

diff --git a/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp b/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp
index 5da69e76a5..55027530ec 100644
--- a/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp
+++ b/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp
@@ -47,6 +47,9 @@ private slots:
     void specific();
     void daily_data() { basic_data(); }
     void daily();
+    void properties_data();
+    void properties();
+    void aliases();
 };
 
 // Support for basic():
@@ -57,7 +60,10 @@ void tst_QCalendar::checkYear(const QCalendar &cal, int year, bool normal)
     QVERIFY(moons > 0);
     QVERIFY(!cal.isDateValid(year, moons + 1, 1));
     QVERIFY(!cal.isDateValid(year, 0, 1));
+    QVERIFY(!QDate(year, 0, 1, cal).isValid());
     QVERIFY(moons <= cal.maximumMonthsInYear());
+    QCOMPARE(cal.standaloneMonthName(QLocale::c(), moons + 1, year), QString());
+    QCOMPARE(cal.monthName(QLocale::c(), 0, year), QString());
 
     const int days = cal.daysInYear(year);
     QVERIFY(days > 0);
@@ -118,6 +124,7 @@ void tst_QCalendar::basic()
         QCOMPARE(cal.monthsInYear(0), 0);
         QCOMPARE(cal.daysInYear(0), 0);
         QVERIFY(!cal.isDateValid(0, 1, 1));
+        QVERIFY(!QDate(0, 1, 1, cal).isValid());
     }
 
     if (cal.isProleptic()) {
@@ -177,6 +184,7 @@ void tst_QCalendar::specific_data()
 {
     QTest::addColumn<QCalendar::System>("system");
     // Date in that system:
+    QTest::addColumn<QString>("monthName");
     QTest::addColumn<int>("sysyear");
     QTest::addColumn<int>("sysmonth");
     QTest::addColumn<int>("sysday");
@@ -185,26 +193,27 @@ void tst_QCalendar::specific_data()
     QTest::addColumn<int>("gregmonth");
     QTest::addColumn<int>("gregday");
 
-#define ADDROW(cal, year, month, day, gy, gm, gd) \
-    QTest::newRow(#cal) << QCalendar::System::cal << year << month << day << gy << gm << gd
+#define ADDROW(cal, monthName, year, month, day, gy, gm, gd) \
+    QTest::newRow(#cal) << QCalendar::System::cal << QStringLiteral(monthName) \
+                        << year << month << day << gy << gm << gd
 
-    ADDROW(Gregorian, 1970, 1, 1, 1970, 1, 1);
+    ADDROW(Gregorian, "January", 1970, 1, 1, 1970, 1, 1);
 
     // One known specific date, for each calendar
 #ifndef QT_BOOTSTRAPPED
     // Julian 1582-10-4 was followed by Gregorian 1582-10-15
-    ADDROW(Julian, 1582, 10, 4, 1582, 10, 14);
+    ADDROW(Julian, "October", 1582, 10, 4, 1582, 10, 14);
     // Milankovic matches Gregorian for a few centuries
-    ADDROW(Milankovic, 1923, 3, 20, 1923, 3, 20);
+    ADDROW(Milankovic, "March", 1923, 3, 20, 1923, 3, 20);
 #endif
 
 #if QT_CONFIG(jalalicalendar)
     // Jalali year 1355 started on Gregorian 1976-3-21:
-    ADDROW(Jalali, 1355, 1, 1, 1976, 3, 21);
+    ADDROW(Jalali, "Farvardin", 1355, 1, 1, 1976, 3, 21);
 #endif // jalali
 #if QT_CONFIG(islamiccivilcalendar)
     // TODO: confirm this is correct
-    ADDROW(IslamicCivil, 1, 1, 1, 622, 7, 19);
+    ADDROW(IslamicCivil, "Muharram", 1, 1, 1, 622, 7, 19);
 #endif
 
 #undef ADDROW
@@ -213,6 +222,7 @@ void tst_QCalendar::specific_data()
 void tst_QCalendar::specific()
 {
     QFETCH(QCalendar::System, system);
+    QFETCH(const QString, monthName);
     QFETCH(int, sysyear);
     QFETCH(int, sysmonth);
     QFETCH(int, sysday);
@@ -221,6 +231,7 @@ void tst_QCalendar::specific()
     QFETCH(int, gregday);
 
     const QCalendar cal(system);
+    QCOMPARE(cal.monthName(QLocale::c(), sysmonth), monthName);
     const QDate date(sysyear, sysmonth, sysday, cal), gregory(gregyear, gregmonth, gregday);
     QCOMPARE(date, gregory);
     QCOMPARE(gregory.year(cal), sysyear);
@@ -255,5 +266,88 @@ void tst_QCalendar::daily()
     }
 }
 
+void tst_QCalendar::properties_data()
+{
+    QTest::addColumn<QCalendar::System>("system");
+    QTest::addColumn<bool>("gregory");
+    QTest::addColumn<bool>("lunar");
+    QTest::addColumn<bool>("luniSolar");
+    QTest::addColumn<bool>("solar");
+    QTest::addColumn<bool>("proleptic");
+    QTest::addColumn<bool>("yearZero");
+    QTest::addColumn<int>("monthMax");
+    QTest::addColumn<int>("monthMin");
+    QTest::addColumn<int>("yearMax");
+    QTest::addColumn<QString>("name");
+
+    QTest::addRow("Gregorian")
+        << QCalendar::System::Gregorian << true << false << false << true << true << false
+        << 31 << 28 << 12 << QStringLiteral("Gregorian");
+#ifndef QT_BOOTSTRAPPED
+    QTest::addRow("Julian")
+        << QCalendar::System::Julian << false << false << false << true << true << false
+        << 31 << 28 << 12 << QStringLiteral("Julian");
+    QTest::addRow("Milankovic")
+        << QCalendar::System::Milankovic << false << false << false << true << true << false
+        << 31 << 28 << 12 << QStringLiteral("Milankovic");
+#endif
+
+#if QT_CONFIG(jalalicalendar)
+    QTest::addRow("Jalali")
+        << QCalendar::System::Jalali << false << false << false << true << true << false
+        << 31 << 29 << 12 << QStringLiteral("Jalali");
+#endif
+#if QT_CONFIG(islamiccivilcalendar)
+    QTest::addRow("IslamicCivil")
+        << QCalendar::System::IslamicCivil << false << true << false << false << true << false
+        << 30 << 29 << 12 << QStringLiteral("Islamic Civil");
+#endif
+}
+
+void tst_QCalendar::properties()
+{
+    QFETCH(const QCalendar::System, system);
+    QFETCH(const bool, gregory);
+    QFETCH(const bool, lunar);
+    QFETCH(const bool, luniSolar);
+    QFETCH(const bool, solar);
+    QFETCH(const bool, proleptic);
+    QFETCH(const bool, yearZero);
+    QFETCH(const int, monthMax);
+    QFETCH(const int, monthMin);
+    QFETCH(const int, yearMax);
+    QFETCH(const QString, name);
+
+    const QCalendar cal(system);
+    QCOMPARE(cal.isGregorian(), gregory);
+    QCOMPARE(cal.isLunar(), lunar);
+    QCOMPARE(cal.isLuniSolar(), luniSolar);
+    QCOMPARE(cal.isSolar(), solar);
+    QCOMPARE(cal.isProleptic(), proleptic);
+    QCOMPARE(cal.hasYearZero(), yearZero);
+    QCOMPARE(cal.maximumDaysInMonth(), monthMax);
+    QCOMPARE(cal.minimumDaysInMonth(), monthMin);
+    QCOMPARE(cal.maximumMonthsInYear(), yearMax);
+    QCOMPARE(cal.name(), name);
+}
+
+void tst_QCalendar::aliases()
+{
+    QCOMPARE(QCalendar(u"gregory").name(), u"Gregorian");
+#if QT_CONFIG(jalalicalendar)
+    QCOMPARE(QCalendar(u"Persian").name(), u"Jalali");
+#endif
+#if QT_CONFIG(islamiccivilcalendar)
+    // Exercise all constructors from name, while we're at it:
+    QCOMPARE(QCalendar(u"islamic-civil").name(), u"Islamic Civil");
+    QCOMPARE(QCalendar(QLatin1String("islamic")).name(), u"Islamic Civil");
+    QCOMPARE(QCalendar(QStringLiteral("Islamic")).name(), u"Islamic Civil");
+#endif
+
+    // Invalid is handled gracefully:
+    QCOMPARE(QCalendar(u"").name(), QString());
+    QCOMPARE(QCalendar(QCalendar::System::User).name(), QString());
+}
+
 QTEST_APPLESS_MAIN(tst_QCalendar)
 #include "tst_qcalendar.moc"