Remove the clearReceiver() function from the tests

It is not necessary any more. Now all tests with the
com0com serial ports are passed without this function.

(cherry-picked from ae4056a5e70df905a16716da3797ed297642a358)
Change-Id: I02b50ca5f28cf93e9e2731d3d0351607ffd2b814
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>

1 files changed, 0 insertions, 54 deletions

diff --git a/tests/auto/qserialport/tst_qserialport.cpp b/tests/auto/qserialport/tst_qserialport.cpp
index 8aeca3c1..c14976d5 100644
--- a/tests/auto/qserialport/tst_qserialport.cpp
+++ b/tests/auto/qserialport/tst_qserialport.cpp
@@ -145,8 +145,6 @@ protected slots:
     void handleBytesWrittenAndExitLoopSlot2(qint64 bytesWritten);
 
 private:
-    void clearReceiver(const QString &customReceiverName = QString());
-
     QString m_senderPortName;
     QString m_receiverPortName;
     QStringList m_availablePortNames;
@@ -165,24 +163,6 @@ tst_QSerialPort::tst_QSerialPort()
 {
 }
 
-// This method is a workaround for the "com0com" virtual serial port
-// driver, which is installed on CI. The problem is that the close/clear
-// methods have no effect on sender serial port. If any data didn't manage
-// to be transferred before closing, then this data will continue to be
-// transferred at next opening of sender port.
-// Thus, this behavior influences other tests and leads to the wrong results
-// (e.g. the receiver port on other test can receive some data which are
-// not expected). It is recommended to use this method for cleaning of
-// read FIFO of receiver for those tests in which reception of data is
-// required.
-void tst_QSerialPort::clearReceiver(const QString &customReceiverName)
-{
-    QSerialPort receiver(customReceiverName.isEmpty()
-                         ? m_receiverPortName : customReceiverName);
-    if (receiver.open(QIODevice::ReadOnly))
-        enterLoopMsecs(100);
-}
-
 void tst_QSerialPort::initTestCase()
 {
     m_senderPortName = QString::fromLocal8Bit(qgetenv("QTEST_SERIALPORT_SENDER"));
@@ -577,7 +557,6 @@ void tst_QSerialPort::waitForBytesWritten()
 void tst_QSerialPort::waitForReadyReadWithTimeout()
 {
 #ifdef Q_OS_WIN
-    clearReceiver();
     // the dummy device on other side also has to be open
     QSerialPort dummySerialPort(m_senderPortName);
     QVERIFY(dummySerialPort.open(QIODevice::WriteOnly));
@@ -592,10 +571,6 @@ void tst_QSerialPort::waitForReadyReadWithTimeout()
 
 void tst_QSerialPort::waitForReadyReadWithOneByte()
 {
-#ifdef Q_OS_WIN
-    clearReceiver();
-#endif
-
     const qint64 oneByte = 1;
     const int waitMsecs = 50;
 
@@ -615,10 +590,6 @@ void tst_QSerialPort::waitForReadyReadWithOneByte()
 
 void tst_QSerialPort::waitForReadyReadWithAlphabet()
 {
-#ifdef Q_OS_WIN
-    clearReceiver();
-#endif
-
     const int waitMsecs = 50;
 
     QSerialPort senderSerialPort(m_senderPortName);
@@ -640,11 +611,6 @@ void tst_QSerialPort::waitForReadyReadWithAlphabet()
 
 void tst_QSerialPort::twoStageSynchronousLoopback()
 {
-#ifdef Q_OS_WIN
-    clearReceiver();
-    clearReceiver(m_senderPortName);
-#endif
-
     QSerialPort senderPort(m_senderPortName);
     QVERIFY(senderPort.open(QSerialPort::ReadWrite));
 
@@ -683,10 +649,6 @@ void tst_QSerialPort::twoStageSynchronousLoopback()
 
 void tst_QSerialPort::synchronousReadWrite()
 {
-#ifdef Q_OS_WIN
-    clearReceiver();
-#endif
-
     QSerialPort senderPort(m_senderPortName);
     QVERIFY(senderPort.open(QSerialPort::WriteOnly));
 
@@ -770,10 +732,6 @@ void tst_QSerialPort::asynchronousWriteByBytesWritten_data()
 
 void tst_QSerialPort::asynchronousWriteByBytesWritten()
 {
-#ifdef Q_OS_WIN
-    clearReceiver();
-#endif
-
     QFETCH(Qt::ConnectionType, readConnectionType);
     QFETCH(Qt::ConnectionType, writeConnectionType);
 
@@ -834,10 +792,6 @@ void tst_QSerialPort::asynchronousWriteByTimer_data()
 
 void tst_QSerialPort::asynchronousWriteByTimer()
 {
-#ifdef Q_OS_WIN
-    clearReceiver();
-#endif
-
     QFETCH(Qt::ConnectionType, readConnectionType);
     QFETCH(Qt::ConnectionType, writeConnectionType);
 
@@ -857,8 +811,6 @@ void tst_QSerialPort::asynchronousWriteByTimer()
 
 void tst_QSerialPort::readBufferOverflow()
 {
-    clearReceiver();
-
     QSerialPort senderPort(m_senderPortName);
     QVERIFY(senderPort.open(QSerialPort::WriteOnly));
 
@@ -886,8 +838,6 @@ void tst_QSerialPort::readBufferOverflow()
 
 void tst_QSerialPort::readAfterInputClear()
 {
-    clearReceiver();
-
     QSerialPort senderPort(m_senderPortName);
     QVERIFY(senderPort.open(QSerialPort::WriteOnly));
 
@@ -1047,10 +997,6 @@ private:
 
 void tst_QSerialPort::controlBreak()
 {
-#ifdef Q_OS_WIN
-    clearReceiver();
-#endif
-
     QSerialPort senderPort(m_senderPortName);
     QVERIFY(senderPort.open(QSerialPort::WriteOnly));
     QCOMPARE(senderPort.isBreakEnabled(), false);