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#include <QtTest/QtTest>

#include <q3sqlselectcursor.h>

#include <qsqldriver.h>

#define NODATABASE_SKIP "No database drivers are available in this Qt configuration"


#include "../qsqldatabase/tst_databases.h"

//TESTED_FILES=

QT_FORWARD_DECLARE_CLASS(QSqlDatabase)

class tst_Q3SqlSelectCursor : public QObject
{
Q_OBJECT

public:
    tst_Q3SqlSelectCursor();
    virtual ~tst_Q3SqlSelectCursor();


public slots:
    void initTestCase();
    void cleanupTestCase();
    void init();
    void cleanup();
private slots:
    void value_data() { generic_data(); }
    void value();
    void _exec_data() { generic_data(); }
    void _exec();

private:
    void generic_data(const QString &engine=QString());
    void createTestTables( QSqlDatabase db );
    void dropTestTables( QSqlDatabase db );
    void populateTestTables( QSqlDatabase db );

    tst_Databases dbs;
};

tst_Q3SqlSelectCursor::tst_Q3SqlSelectCursor()
{
}

tst_Q3SqlSelectCursor::~tst_Q3SqlSelectCursor()
{
}

void tst_Q3SqlSelectCursor::generic_data(const QString& engine)
{
    if ( dbs.fillTestTable(engine) == 0 ) {
        if(engine.isEmpty())
           QSKIP( "No database drivers are available in this Qt configuration", SkipAll );
        else
           QSKIP( (QString("No database drivers of type %1 are available in this Qt configuration").arg(engine)).toLocal8Bit(), SkipAll );
    }
}

void tst_Q3SqlSelectCursor::createTestTables( QSqlDatabase db )
{
    if ( !db.isValid() )
	return;
    QSqlQuery q( db );
    if(tst_Databases::isPostgreSQL(db))
        QVERIFY_SQL( q, exec("set client_min_messages='warning'"));
    // please never ever change this table; otherwise fix all tests ;)
    if (tst_Databases::isMSAccess(db))
        QVERIFY_SQL(q, exec( "create table " + qTableName( "qtest", __FILE__ ) + " ( id int not null, t_varchar varchar(40) not null,"
                "t_char char(40), t_numeric number, primary key (id, t_varchar) )" ));
    else
        QVERIFY_SQL(q, exec( "create table " + qTableName( "qtest", __FILE__ ) + " ( id int not null, t_varchar varchar(40) not null,"
                "t_char char(40), t_numeric numeric(6, 3), primary key (id, t_varchar) )" ));
}

void tst_Q3SqlSelectCursor::dropTestTables( QSqlDatabase db )
{
    tst_Databases::safeDropTable( db, qTableName( "qtest", __FILE__ ) );
}

void tst_Q3SqlSelectCursor::populateTestTables( QSqlDatabase db )
{
    if ( !db.isValid() )
	return;
    QSqlQuery q( db );

    q.exec( "delete from " + qTableName( "qtest", __FILE__ ) ); //non-fatal
    QVERIFY_SQL(q, exec( "insert into " + qTableName( "qtest", __FILE__ ) + " (id, t_varchar, t_char, t_numeric) values ( 0, 'VarChar0', 'Char0', 1.1 )" ));
    QVERIFY_SQL(q, exec( "insert into " + qTableName( "qtest", __FILE__ ) + " (id, t_varchar, t_char, t_numeric) values ( 1, 'VarChar1', 'Char1', 2.2 )" ));
    QVERIFY_SQL(q, exec( "insert into " + qTableName( "qtest", __FILE__ ) + " (id, t_varchar, t_char, t_numeric) values ( 2, 'VarChar2', 'Char2', 3.3 )" ));
    QVERIFY_SQL(q, exec( "insert into " + qTableName( "qtest", __FILE__ ) + " (id, t_varchar, t_char, t_numeric) values ( 3, 'VarChar3', 'Char3', 4.4 )" ));
}

void tst_Q3SqlSelectCursor::initTestCase()
{
    dbs.open();

    for ( QStringList::ConstIterator it = dbs.dbNames.begin(); it != dbs.dbNames.end(); ++it ) {
	QSqlDatabase db = QSqlDatabase::database( (*it) );
	CHECK_DATABASE( db );

	dropTestTables( db ); //in case of leftovers
	createTestTables( db );
	populateTestTables( db );
    }
}

void tst_Q3SqlSelectCursor::cleanupTestCase()
{
    for ( QStringList::ConstIterator it = dbs.dbNames.begin(); it != dbs.dbNames.end(); ++it ) {
	QSqlDatabase db = QSqlDatabase::database( (*it) );
	CHECK_DATABASE( db );
	dropTestTables( db );
    }

    dbs.close();
}

void tst_Q3SqlSelectCursor::init()
{
}

void tst_Q3SqlSelectCursor::cleanup()
{
    QFETCH( QString, dbName );
    QSqlDatabase db = QSqlDatabase::database( dbName );
    CHECK_DATABASE( db );

    if ( QTest::currentTestFailed() ) {
	//since Oracle ODBC totally craps out on error, we init again
	db.close();
	db.open();
    }
}

void tst_Q3SqlSelectCursor::value()
{
    QFETCH( QString, dbName );
    QSqlDatabase db = QSqlDatabase::database( dbName );
    CHECK_DATABASE( db );

    Q3SqlSelectCursor cur( "select * from " + qTableName( "qtest", __FILE__ ) + " order by id", db );
    QVERIFY( cur.select() );
    QVERIFY_SQL(cur, isActive());
    int i = 0;
    while ( cur.next() ) {
	QVERIFY( cur.value( "id" ).toInt() == i );
	i++;
    }
}

void tst_Q3SqlSelectCursor::_exec()
{
    QFETCH( QString, dbName );
    QSqlDatabase db = QSqlDatabase::database( dbName );
    CHECK_DATABASE( db );
    
    Q3SqlSelectCursor cur( QString(), db );
    QVERIFY_SQL(cur, isActive() == false);

    cur.exec( "select * from " + qTableName( "qtest", __FILE__ ) ); //nothing should happen
    QVERIFY_SQL(cur, isActive());
    int i = 0;
    while ( cur.next() ) {
	QVERIFY( cur.value( "id" ).toInt() == i );
	i++;
    }
}


QTEST_MAIN(tst_Q3SqlSelectCursor)
#include "tst_q3sqlselectcursor.moc"
