QDateTimeParser: reject all short values in fixed-width fields

Previously, a 1, 2 or 3 for "dd" would be rejected because 10, 20 or
30 would fit in the field and be valid; but 4 or more was accepted,
even though it was too short for the field, because no suffix could
make it valid within the field-width.

[ChangeLog][QtCore][QDateTime] When parsing dates and times from
strings, fixed-width date-time fields, such as a "dd" for day,
QDateTime now rejects all values that should be padded, rather
than only doing so when the value is a prefix of some value that
would fill the field-width.  Use a single letter for the field,
e.g. "d" for day, if you want to accept short
values. (QDateTimeEdit is not affected.)

Task-number: QTBUG-63072
Change-Id: I22d223c50057c3edab4ef7f01d9ed0f58e9139c1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp b/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp
index d424e6086d..fc1ac7cf0f 100644
--- a/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp
+++ b/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp
@@ -1569,6 +1569,16 @@ void tst_QLocale::toDateTime_data()
                          << "d'dd'd/MMM'M'/yysss" << "1dd1/DecM/74033";
     QTest::newRow("12C") << "C" << QDateTime(QDate(1974, 12, 1), QTime(15, 0, 0))
                          << "d'd'dd/M/yyh" << "1d01/12/7415";
+    // Unpadded value for fixed-width field is wrong:
+    QTest::newRow("bad-day-C") << "C" << QDateTime() << "dd-MMM-yy" << "4-Jun-11";
+    QTest::newRow("bad-month-C") << "C" << QDateTime() << "d-MM-yy" << "4-6-11";
+    QTest::newRow("bad-year-C") << "C" << QDateTime() << "d-MMM-yyyy" << "4-Jun-11";
+    QTest::newRow("bad-hour-C") << "C" << QDateTime() << "d-MMM-yy hh:m" << "4-Jun-11 1:2";
+    QTest::newRow("bad-min-C") << "C" << QDateTime() << "d-MMM-yy h:mm" << "4-Jun-11 1:2";
+    QTest::newRow("bad-sec-C") << "C" << QDateTime() << "d-MMM-yy h:m:ss" << "4-Jun-11 1:2:3";
+    QTest::newRow("bad-milli-C") << "C" << QDateTime() << "d-MMM-yy h:m:s.zzz" << "4-Jun-11 1:2:3.4";
+    QTest::newRow("ok-C") << "C" << QDateTime(QDate(1911, 6, 4), QTime(1, 2, 3, 400))
+                          << "d-MMM-yy h:m:s.z" << "4-Jun-11 1:2:3.4";
 
     QTest::newRow("1no_NO") << "no_NO" << QDateTime(QDate(1974, 12, 1), QTime(5, 14, 0))
                             << "d/M/yyyy hh:h:mm" << "1/12/1974 05:5:14";