/**

 @file projecttst.h

*/

#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>

#include <qgsproject.h>

#include <qstring.h>



/**
   tests for QgsProject

   @todo XXX add tests for:

   entryList()
   removeEntry()
   clearProperties()
   read()
   write()

   Although the last two may be difficult to test for since qgis won't be running.

*/
class ProjectTest : public CppUnit::TestFixture 
{ 
    CPPUNIT_TEST_SUITE( ProjectTest );

    CPPUNIT_TEST( testFileName );
    CPPUNIT_TEST( testTitle );
    CPPUNIT_TEST( testMapUnits );
    CPPUNIT_TEST( testDirtyFlag );
    CPPUNIT_TEST( readNullEntries );
    CPPUNIT_TEST( testWriteEntries );
    CPPUNIT_TEST( testRemoveEntry );
    CPPUNIT_TEST( testClearProperties );

    CPPUNIT_TEST_SUITE_END();

  public: 

    /** 
        Setup the common test members, etc
    */
    void setUp()
    {
        mFile = "test.project";
        mTitle = "test title";
        mScope = "project_test";

        mNumValueKey = "/values/num";

        mDoubleValueKey = "/values/double";

        mBoolValueKey = "/values/bool";

        mStringValueKey = "/values/string";

        mStringListValueKey = "/values/stringlist";


        mNumValueConst = 42;

        mDoubleValueConst = 12345.6789;

        mBoolValueConst = true;

        mStringValueConst = "Test String";

        mStringListValueConst += "first";
        mStringListValueConst += "second";
        mStringListValueConst += "third";
    } // setUp

    

    void testFileName()
    {
        QgsProject::instance()->dirty( false );
        QgsProject::instance()->filename( mFile );

        CPPUNIT_ASSERT( mFile == QgsProject::instance()->filename() );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );
    } // testFileName

    

    void testTitle()
    {
        QgsProject::instance()->dirty( false );
        QgsProject::instance()->title( mTitle );

        CPPUNIT_ASSERT( mTitle == QgsProject::instance()->title() );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );
    } // testTitle


    void testMapUnits()
    {
        QgsProject::instance()->dirty( false );
        QgsProject::instance()->mapUnits( QgsScaleCalculator::METERS );
        CPPUNIT_ASSERT( QgsScaleCalculator::METERS == QgsProject::instance()->mapUnits() );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );

        QgsProject::instance()->dirty( false );
        QgsProject::instance()->mapUnits( QgsScaleCalculator::FEET );
        CPPUNIT_ASSERT( QgsScaleCalculator::FEET == QgsProject::instance()->mapUnits() );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );

        QgsProject::instance()->dirty( false );
        QgsProject::instance()->mapUnits( QgsScaleCalculator::DEGREES );
        CPPUNIT_ASSERT( QgsScaleCalculator::DEGREES == QgsProject::instance()->mapUnits() );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );
    } // testMapUnits



    void testDirtyFlag()
    {
        QgsProject::instance()->dirty( true );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );

        QgsProject::instance()->dirty( false );
        CPPUNIT_ASSERT( ! QgsProject::instance()->dirty() );
    } // testDirtyFlag

    
    /**
       Reading entries that are known not to exist should fail and use default
       values.
     */
    void readNullEntries()
    {
        bool status;

        bool b = QgsProject::instance()->readBoolEntry( mScope, mBoolValueKey, false, &status );
        CPPUNIT_ASSERT( false == b && ! status );

        int i = QgsProject::instance()->readNumEntry( mScope, mNumValueKey, 13, &status );
        CPPUNIT_ASSERT( 13 == i && ! status );

        double d = QgsProject::instance()->readDoubleEntry( mScope, mDoubleValueKey, 99.0, &status );
        CPPUNIT_ASSERT( 99.0 == d && ! status );

        QString s = QgsProject::instance()->readEntry( mScope, mStringValueKey, "FOO", &status );
        CPPUNIT_ASSERT( "FOO" == s && ! status );

        QStringList sl = QgsProject::instance()->readListEntry( mScope, mStringListValueKey, &status );
        CPPUNIT_ASSERT( sl.empty() && ! status );

    } // readNullEntries


    /** check that writing entries works */
    void testWriteEntries()
    {
        QgsProject::instance()->dirty( false );
        CPPUNIT_ASSERT( QgsProject::instance()->writeEntry( mScope, mBoolValueKey, mBoolValueConst ) );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );

        QgsProject::instance()->dirty( false );
        CPPUNIT_ASSERT( QgsProject::instance()->writeEntry( mScope, mNumValueKey, mNumValueConst ) );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );

        QgsProject::instance()->dirty( false );
        CPPUNIT_ASSERT( QgsProject::instance()->writeEntry( mScope, mDoubleValueKey, mDoubleValueConst ) );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );

        QgsProject::instance()->dirty( false );
        CPPUNIT_ASSERT( QgsProject::instance()->writeEntry( mScope, mStringValueKey, mStringValueConst ) );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );

        QgsProject::instance()->dirty( false );
        CPPUNIT_ASSERT( QgsProject::instance()->writeEntry( mScope, mStringListValueKey, mStringListValueConst ) );
        CPPUNIT_ASSERT( QgsProject::instance()->dirty() );


        bool status;

        bool b = QgsProject::instance()->readBoolEntry( mScope, mBoolValueKey, false, &status );
        CPPUNIT_ASSERT( mBoolValueConst == b && status );

        int i = QgsProject::instance()->readNumEntry( mScope, mNumValueKey, 13, &status );
        CPPUNIT_ASSERT( mNumValueConst == i && status );

        double d = QgsProject::instance()->readDoubleEntry( mScope, mDoubleValueKey, 99.0, &status );
        CPPUNIT_ASSERT( mDoubleValueConst == d && status );

        QString s = QgsProject::instance()->readEntry( mScope, mStringValueKey, "FOO", &status );
        CPPUNIT_ASSERT( mStringValueConst == s && status );

        QStringList sl = QgsProject::instance()->readListEntry( mScope, mStringListValueKey, &status );
        CPPUNIT_ASSERT( mStringListValueConst == sl && status );

    } // testWriteEntries



    void testRemoveEntry()
    {
        // presume that testWriteEntries() already invoked so that properties are set

        CPPUNIT_ASSERT( QgsProject::instance()->removeEntry( mScope, mBoolValueKey ) );
        CPPUNIT_ASSERT( QgsProject::instance()->removeEntry( mScope, mNumValueKey ) );
        CPPUNIT_ASSERT( QgsProject::instance()->removeEntry( mScope, mDoubleValueKey ) );
        CPPUNIT_ASSERT( QgsProject::instance()->removeEntry( mScope, mStringValueKey ) );
        CPPUNIT_ASSERT( QgsProject::instance()->removeEntry( mScope, mStringListValueKey ) );

        // since we've removed everything, re-run this test to verify that
        readNullEntries();
        
    } // testRemoveEntry


    void testClearProperties()
    {   // rebuild the properties deleted in testRemoveEntry()
        testWriteEntries();

        // remove all in one fell swoop
        QgsProject::instance()->clearProperties();

        // since we've removed everything, re-run this test to verify that
        readNullEntries();
    } // testClearProperties


private:

    /// file name for project file
    QString mFile;

    /// test project title
    QString mTitle;

    /// test project scope
    QString mScope;

    /// num value key
    QString mNumValueKey;

    /// double value key
    QString mDoubleValueKey;

    /// bool value key
    QString mBoolValueKey;

    /// string value key
    QString mStringValueKey;

    /// string list value key
    QString mStringListValueKey;

    /// num value const
    int mNumValueConst;

    /// double value const
    double mDoubleValueConst;

    /// bool value const
    bool mBoolValueConst;

    /// string value const
    QString mStringValueConst;

    /// string list value const
    QStringList mStringListValueConst;

}; // class ProjectTest