camerauis/cameraxui/cxengine/tsrc/unit/utils/cxetestutils.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 14:51:30 +0300
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include <QSignalSpy>
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#include <QTest>
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#include "cxetestutils.h"
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/*!
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* Wait for a signal (or multiple instances of the same signal) to be caught
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* by signal spy. Returns false if signal is not received within the given
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* timeout.
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*
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* @param spy               Signal spy attached to the signal to wait for.
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* @param ms                Timeout in milliseconds
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* @param count             How many instances of the signal to wait for
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*                          (default 1)
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* @param allowExtraSignals True to ignore any extranous signal. Setting
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*                          this as false will cause this function to return
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*                          false the spy receives more signals than received
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* @return       True if signal(s) were received, false if timed out or
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*               signal spy was invalid.
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*/
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bool CxeTestUtils::waitForSignal(
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    QSignalSpy &spy, int ms, int count, bool allowExtraSignals)
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{
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    int waitingTime = 0;
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    if (spy.isValid()) {
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        while (spy.count() < count && waitingTime < ms) {
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            QTest::qWait(CXE_TEST_POLL_TIME);
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            waitingTime += CXE_TEST_POLL_TIME;
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        }
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        if (spy.count() > count && !allowExtraSignals) {
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            CX_DEBUG(("waitForSignal() - got too many signals for %s, count = %d",
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                      spy.signal().constData(), spy.count()));
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            return false;
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        } else if (spy.count() >= count) {
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            CX_DEBUG(("waitForSignal() - got signal %s successfully, count = %d",
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                      spy.signal().constData(), spy.count()));
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            return true;
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        } else {
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            CX_DEBUG(("waitForSignal() - signal %s timed out, waitingTime = %d",
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                      spy.signal().constData(), waitingTime));
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            return false;
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        }
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    } else {
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        CX_DEBUG(("waitForSignal() - given signalspy is not valid!"));
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        return false;
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    }
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}