/**

 * @note This class is provided only if module test hooks are set on.

 */

#include "alfmoduletestconf.h"

#ifdef USE_MODULE_TEST_HOOKS_FOR_ALF

#ifndef ALFMODULETESTITEM_H

#define ALFMODULETESTITEM_H

#include <e32def.h> 

#include "alfmoduletesttype.h"

/**

 * CAlfModuleTestItem

 * 

 * Provides key-value pair that is used in TAlfModuleTestMap.

 */

template< class T >

NONSHARABLE_CLASS( TAlfModuleTestItem )

    {

public:

    /**

     * Default constructor

     * 

     * This is provided for copy operations that may required default constructor.

     * For normal cases, use another constructor instead to initialize the item

     * with correct values.

     */

    TAlfModuleTestItem():

        iTestType( EAlfModuleTestTypeNone ),    

        iKey( 0 ),

        iValueSetCount( 0 ),

        iLinkTargetKey( KErrNotFound )

        {    

        }

    /**

     * Constructor to initialize variables.

     * 

     * @param aTestType Defines for what this test item is meant for.

     * @param aKey Key that identifies the item.

     *             In test cases this could be for example handle.

     * @param aDefaultValue Default value for the map item.

     */

    TAlfModuleTestItem( const TAlfModuleTestType& aTestType, TInt aKey, const T& aDefaultValue ):

        iTestType( aTestType ),

        iKey( aKey ),

        iValue( aDefaultValue ),

        iValueSetCount( 0 ),

        iLinkTargetKey( KErrNotFound )

        {

        }

    /**

     * @note Be carefull when comparing items because some items may

     * be link items instead of original items.

     * 

     * @param aTestType Test type of accepted item.

     * @param aValue Item value to be compared.

     * @return ETrue if given object equals the value of this item.

     *         Else EFalse.

     */

    TBool Equals( const TAlfModuleTestType& aTestType, const T& aValue ) const

        {

        // Also, check that value has been set. If it has not been set,

        // then think objects as unequals.

        return ( iValueSetCount > 0 

                 && iValue == aValue 

                 && TestTypeMatch( aTestType ) );

        }

    /**

     * @return TInt Key that should be set during creation of this object.

     */

    TInt Key() const

        {

        return iKey;

        }

    /**

     * @see TAlfModuleTestItem::ValueSetCount to check if the value has already been set.

     * 

     * @return const T& Value that corresonds the key.

     */

    const T& Value() const

        {

        return iValue;

        }

    /**

     * @param aValue Value to be set for the key

     */

    void SetValue( const T& aValue )

        {

        iValue = aValue;

        ++iValueSetCount;

        }

    /**

     * @return TInt Informs how many times the value has been set. 

     */

    TInt ValueSetCount() const

        {

        return iValueSetCount;

        }

    /**

     * @return const TAlfModuleTestType& Defines what the test is for.

     */

    const TAlfModuleTestType& TestType() const

        {

        return iTestType;

        }

    /**

     * @param aTestType Type of the test this item is for.

     * @return TBool ETrue if flag matches this item. Else EFalse.

     */

    TBool TestTypeMatch( const TAlfModuleTestType& aTestType ) const

        {

        return ( EAlfModuleTestTypeAll == aTestType

                 || EAlfModuleTestTypeAll == iTestType

                 || iTestType == aTestType );

        }

    /**

     * @param aLinkTargetKey Key of the item that this item links to. 

     *                       KErrNotFound if this is not a link item.

     */

    void SetLinkTargetKey( TInt aLinkTargetKey )

        {

        iLinkTargetKey = aLinkTargetKey;

        }

    /**

     * @return TInt Key of the item that this item links to. 

     *              KErrNotFound if this is not a link item.

     */    

    TInt LinkTargetKey() const

        {

        return iLinkTargetKey;

        }

    /**

     * Resets this item to the given default value and 

     * sets value set count to zero.

     * 

     * @note Type, key and link target remain unchanged.

     * 

     * @param aDefaultValue Default value for the item.

     */

    void Reset( const T& aDefaultValue )

        {

        iValue = aDefaultValue;

        iValueSetCount = 0;

        }

private: // data    

    TAlfModuleTestType iTestType;

    TInt iKey;

    T iValue;

    TInt iValueSetCount;

    TInt iLinkTargetKey;

    };

#endif // ALFMODULETESTITEM_H

#endif // USE_MODULE_TEST_HOOKS_FOR_ALF

// End of File