QSqlError: also compare nativeErrorCode() in operator==() / operator!=()

A QSqlError is not equal when the native error code differs. The
database and driver text should not be considered during the
comparison because they might differ due to e.g. different locales.

[ChangeLog][QtSql][QSqlError] The comparison operators have been fixed to
take both error type and error code into account.

Change-Id: Ie7511f183f88dd454eb165c6ff237e51b79d1c08
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 7 insertions, 3 deletions

diff --git a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
index c83867fcc4..ddd4e2cda6 100644
--- a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
+++ b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
@@ -108,12 +108,16 @@ void tst_QSqlError::moveOperator()
 
 void tst_QSqlError::operators()
 {
-   QSqlError error1(QString(), QString(), QSqlError::NoError);
-   QSqlError error2(QString(), QString(), QSqlError::NoError);
-   QSqlError error3(QString(), QString(), QSqlError::UnknownError);
+   QSqlError error1(QStringLiteral("a"), QStringLiteral("b"), QSqlError::NoError, QStringLiteral("ec1"));
+   QSqlError error2(QStringLiteral("c"), QStringLiteral("d"), QSqlError::NoError, QStringLiteral("ec1"));
+   QSqlError error3(QString(), QString(), QSqlError::UnknownError, QStringLiteral("ec1"));
+   QSqlError error4(QString(), QString(), QSqlError::NoError, QStringLiteral("ec2"));
+   QSqlError error5(QString(), QString(), QSqlError::UnknownError, QStringLiteral("ec2"));
 
    QCOMPARE(error1, error2);
    QVERIFY(error1 != error3);
+   QVERIFY(error1 != error4);
+   QVERIFY(error4 != error5);
 }
 
 void tst_QSqlError::qtbug_74575()