Add operator== and operator!= to qsqlerror class

Merge-request: 44
Task-number: QTBUG-20543

Change-Id: I7b88985fe095ffd2e48ac05c82dc3f3a92dbb091
Reviewed-on: http://codereview.qt.nokia.com/3425
Reviewed-by: Charles Yin <charles.yin@nokia.com>
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>

src/sql/kernel/qsqlerror.cpp

@@ -123,6 +123,26 @@ QSqlError& QSqlError::operator=(const QSqlError& other)
     return *this;
 }
 
+/*!
+    Compare the \a other error's values to this error and returns true, if it equal.
+*/
+
+bool QSqlError::operator==(const QSqlError& other)
+{
+    return (errorType == other.errorType);
+}
+
+
+/*!
+    Compare the \a other error's values to this error and returns true if it is not equal.
+*/
+
+bool QSqlError::operator!=(const QSqlError& other)
+{
+    return (errorType != other.errorType);
+}
+
+
 /*!
     Destroys the object and frees any allocated resources.
 */

src/sql/kernel/qsqlerror.h

@@ -66,6 +66,8 @@ public:
                 int number = -1);
     QSqlError(const QSqlError& other);
     QSqlError& operator=(const QSqlError& other);
+    bool operator==(const QSqlError& other);
+    bool operator!=(const QSqlError& other);
     ~QSqlError();
 
     QString driverText() const;

tests/auto/qsqlerror/tst_qsqlerror.cpp

@@ -61,6 +61,7 @@ public:
 private slots:
     void getSetCheck();
     void construction();
+    void operators();
 };
 
 tst_QSqlError::tst_QSqlError()
@@ -125,5 +126,20 @@ void tst_QSqlError::construction()
    QVERIFY(!obj4.isValid());
 }
 
+void tst_QSqlError::operators()
+{
+   QSqlError error1;
+   QSqlError error2;
+   QSqlError error3;
+
+   error1.setType(QSqlError::NoError);
+   error2.setType(QSqlError::NoError);
+   error3.setType(QSqlError::UnknownError);
+
+   QVERIFY(error1 == error2);
+   QVERIFY(error1 != error3);
+}
+
+
 QTEST_MAIN(tst_QSqlError)
 #include "tst_qsqlerror.moc"