/*

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 */

#include <QObject>

#include <QTest>

#include <QSignalSpy>

#include "unittest_cxezoomcontrolsymbian.h"

#include "cxezoomcontrolsymbian.h"

#include "cxefakecameradevice.h"

#include "cxefakesettings.h"

#include "cxefakefeaturemanager.h"

#include "cxefakecameradevicecontrol.h"

#include "cxeerror.h"

#include "cxezoomcontrolsymbian.h"

#include "cxetestutils.h"

UnitTestCxeZoomControlSymbian::UnitTestCxeZoomControlSymbian()

: mZoomControl(NULL), mFakeCameraDevice(NULL), mFakeCameraDeviceControl(NULL), mFakeSettings(NULL), mFakeFeatureManager(NULL)

{

    qRegisterMetaType<CxeError::Id>("CxeError::Id");

    qRegisterMetaType<CxeZoomControl::State>("CxeZoomControl::State");

}

UnitTestCxeZoomControlSymbian::~UnitTestCxeZoomControlSymbian()

{

}

void UnitTestCxeZoomControlSymbian::init()

{

    CX_DEBUG_ENTER_FUNCTION();

    mFakeCameraDevice = new CxeFakeCameraDevice;

    mFakeCameraDevice->newCamera(Cxe::PrimaryCameraIndex,

                                 mFakeCameraDeviceControl);

    mFakeCameraDeviceControl = new CxeFakeCameraDeviceControl;

    mFakeCameraDeviceControl->setState(CxeCameraDeviceControl::Ready);

    mFakeFeatureManager = new CxeFakeFeatureManager();

    mZoomControl = new CxeZoomControlSymbian(*mFakeCameraDevice,

                                             *mFakeCameraDeviceControl,

                                             *mFakeSettings,

                                             *mFakeFeatureManager);

    // init zoom control

    connect(this, SIGNAL(prepareZoom(int)), mZoomControl, SLOT(prepareZoomForStill(int)));

    // make sure that after creation we are in correct state

    QCOMPARE(mZoomControl->state(), CxeZoomControl::Idle);

    // after construction the initial values are 0

    // other cases for min and max are tested as part of other testcases

    QCOMPARE(mZoomControl->min(),0);

    QCOMPARE(mZoomControl->max(),0);

    CX_DEBUG_EXIT_FUNCTION();

}

void UnitTestCxeZoomControlSymbian::cleanup()

{

    delete mZoomControl;

    mZoomControl = NULL;

    delete mFakeCameraDeviceControl;

    mFakeCameraDeviceControl = NULL;

    delete mFakeCameraDevice;

    mFakeCameraDevice = NULL;

    delete mFakeSettings;

    mFakeSettings = NULL;

    delete mFakeFeatureManager;

    mFakeFeatureManager = NULL;

}

void UnitTestCxeZoomControlSymbian::testZoomTo()

{

    CX_DEBUG_ENTER_FUNCTION();

    QSignalSpy spyStateChange(mZoomControl, SIGNAL(stateChanged(CxeZoomControl::State,

                                                                CxeError::Id)));

    QSignalSpy spyZoomLevelChange(mZoomControl,

                                  SIGNAL(zoomLevelChanged(int)));

    QList<QVariant> spyArguments;

    // before prepare, this method should not do anything

    mZoomControl->zoomTo(mZoomControl->max());

    QVERIFY(!CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    QCOMPARE(mZoomControl->max(), 0);

    QCOMPARE(mZoomControl->min(), 0);

    QCOMPARE(mZoomControl->state(), CxeZoomControl::Idle);

    // call fakeclass to emit a signal to get the zoomcontrol initialized

    // and get zoom values

    mFakeCameraDeviceControl->setState(CxeCameraDeviceControl::Ready);

    emit prepareZoom(0);

    int min = mZoomControl->min();

    int max = mZoomControl->max();

    int middle = min + (max-min)/2;

    // clear signal spies (just to be sure)

    spyStateChange.clear();

    spyZoomLevelChange.clear();

    // zoom to middle

    mZoomControl->zoomTo(middle);

    // verify statechanges

    QVERIFY(CxeTestUtils::waitForSignal(spyStateChange, 1000, 2, false));

    spyArguments = spyStateChange.takeFirst(); // first signal

    QCOMPARE(qvariant_cast<CxeZoomControl::State>(spyArguments.at(0)),

             CxeZoomControl::ZoomingIn);

    spyArguments = spyStateChange.takeFirst(); // second signal

    QCOMPARE(qvariant_cast<CxeZoomControl::State>(spyArguments.at(0)),

             CxeZoomControl::Ready);

    // verify current zoomlevel change

    QVERIFY(CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    spyArguments = spyZoomLevelChange.takeFirst();

    QCOMPARE(spyArguments.at(0).toInt(), middle); // mCurrentZoomLevel

    // clear signal spies

    spyStateChange.clear();

    spyZoomLevelChange.clear();

    // zoom to min

    mZoomControl->zoomTo(min);

    // verify statechanges

    QVERIFY(CxeTestUtils::waitForSignal(spyStateChange, 1000, 2, false));

    spyArguments.clear();

    spyArguments = spyStateChange.takeFirst(); // first signal

    QCOMPARE(qvariant_cast<CxeZoomControl::State>(spyArguments.at(0)),

             CxeZoomControl::ZoomingOut);

    spyArguments.clear();

    spyArguments = spyStateChange.takeFirst(); // second signal

    QCOMPARE(qvariant_cast<CxeZoomControl::State>(spyArguments.at(0)),

             CxeZoomControl::Ready);

    // verify current zoomlevel change

    QVERIFY(CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    spyArguments.clear();

    spyArguments = spyZoomLevelChange.takeFirst();

    QCOMPARE(spyArguments.at(0).toInt(), min); // mCurrentZoomLevel

    // clear signal spies

    spyStateChange.clear();

    spyZoomLevelChange.clear();

    // zoom to max

    mZoomControl->zoomTo(max);

    // verify statechanges

    QVERIFY(CxeTestUtils::waitForSignal(spyStateChange, 1000, 2, false));

    spyArguments = spyStateChange.takeFirst(); // first signal

    QCOMPARE(qvariant_cast<CxeZoomControl::State>(spyArguments.at(0)),

             CxeZoomControl::ZoomingIn);

    spyArguments = spyStateChange.takeFirst(); // second signal

    QCOMPARE(qvariant_cast<CxeZoomControl::State>(spyArguments.at(0)),

             CxeZoomControl::Ready);

    // verify current zoomlevel change

    QVERIFY(CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    spyArguments = spyZoomLevelChange.takeFirst();

    QCOMPARE(spyArguments.at(0).toInt(), max); // mCurrentZoomLevel

    // clear signal spies

    spyStateChange.clear();

    spyZoomLevelChange.clear();

    // zoom to max+1 (nothing should happen, check that no signal is emitted)

    mZoomControl->zoomTo(max+1);

    QVERIFY(!CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    QVERIFY(!CxeTestUtils::waitForSignal(spyStateChange, 1000));

    CX_DEBUG_EXIT_FUNCTION();

}

void UnitTestCxeZoomControlSymbian::testPrepareZoomControl()

{

    QSignalSpy spyZoomLevelChange(mZoomControl, SIGNAL(zoomLevelChanged(int)));

    // setting the state of mFakeCameraDeviceControl emits stateChanged signal

    // that CxeZoomControlSymbian connects to prepareZoomControl slot

    // signal parameters that are not supposed to change zoom values

    mFakeCameraDeviceControl->setState(CxeCameraDeviceControl::Idle);

    emit prepareZoom(0);

    // zoomcontrol is in initial state and zoom values should not change

    QVERIFY(!CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    QCOMPARE(mZoomControl->max(),0);

    QCOMPARE(mZoomControl->min(),0);

    QCOMPARE(mZoomControl->state(), CxeZoomControl::Idle);

    spyZoomLevelChange.clear();

    // check that the zoom min and max values are updated

    // when slot is called with the Ready parameter

    mFakeCameraDeviceControl->setState(CxeCameraDeviceControl::Ready);

    emit prepareZoom(0);

    QVERIFY(CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    QList<QVariant> spyArguments = spyZoomLevelChange.takeFirst();

    QCOMPARE(spyArguments.at(0).toInt(), 0); // mCurrentZoomLevel should not change when prepare is called

    QVERIFY(mZoomControl->max() > 0); // Must be positive, or zero if not supported.

    QCOMPARE(mZoomControl->min(), 0); // Must be negative, or zero if macro zoom not supported

    QCOMPARE(mZoomControl->state(), CxeZoomControl::Ready);

}

void UnitTestCxeZoomControlSymbian::testPrepareForCameraDelete()

{

    QSignalSpy spyZoomLevelChange(mZoomControl, SIGNAL(zoomLevelChanged(int)));

    // zoomcontrol needs to be prepared in order to delete camera

    // this emits a signal that calls prepareZoomControl

    mFakeCameraDeviceControl->setState(CxeCameraDeviceControl::Ready);

    emit prepareZoom(0);

    // call fakeclass method that emits a signal,

    // which is connected to prepareForCameraDelete slot in contructor

    // of CxeZoomControlSymbian

    mFakeCameraDevice->deleteCamera();

    // check that after prepareForCameraDelete default values are set

    QCOMPARE(mZoomControl->max(),0);

    QCOMPARE(mZoomControl->min(),0);

    QCOMPARE(mZoomControl->state(),CxeZoomControl::Idle);

    // check signal is emitted, and current zoom level is reset

    QVERIFY(CxeTestUtils::waitForSignal(spyZoomLevelChange, 1000));

    QList<QVariant> spyArguments = spyZoomLevelChange.takeFirst();

    QCOMPARE(spyArguments.at(0).toInt(), 0); // mCurrentZoomLevel

}

QTEST_MAIN(UnitTestCxeZoomControlSymbian);