/*
 * Copyright 2011, Mysema Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.mysema.query.sql;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

import com.mysema.query.types.ConstantImpl;
import com.mysema.query.types.Operation;
import com.mysema.query.types.OperationImpl;
import com.mysema.query.types.Path;
import com.mysema.query.types.expr.NumberExpression;
import com.mysema.query.types.path.SimplePath;
import com.mysema.query.types.template.NumberTemplate;


public class SQLServer2005TemplatesTest extends AbstractSQLTemplatesTest{

    @Override
    @Test
    public void NoFrom() {
        query.getMetadata().addProjection(NumberTemplate.ONE);
        assertEquals("select 1", query.toString());
    }

    @Override
    protected SQLTemplates createTemplates() {
        return new SQLServer2005Templates();
    }

    @SuppressWarnings("unchecked")
    @Test
    @Override
    public void Union() {
        NumberExpression<Integer> one = NumberTemplate.ONE;
        NumberExpression<Integer> two = NumberTemplate.TWO;
        NumberExpression<Integer> three = NumberTemplate.THREE;
        Path<Integer> col1 = new SimplePath<Integer>(Integer.class,"col1");
        Union union = query.union(
            sq().unique(one.as(col1)),
            sq().unique(two),
            sq().unique(three));
        assertEquals(
                "(select 1 as col1)\n" +
                "union\n" +
                "(select 2)\n" +
                "union\n" +
                "(select 3)", union.toString());
    }

    @Test
    public void Limit() {
        query.from(survey1).limit(5);
        query.getMetadata().addProjection(survey1.id);
        assertEquals("select top (?) survey1.ID from SURVEY survey1", query.toString());
    }

    @Test
    public void Modifiers() {
        query.from(survey1).limit(5).offset(3);
        query.getMetadata().addProjection(survey1.id);
        assertEquals("with inner_query as  (   " +
        		"select survey1.ID, row_number() over () as row_number from SURVEY survey1 ) " +
        		"select *  from inner_query where row_number > ? and row_number <= ?", query.toString());
    }

    @Test
    public void NextVal() {
        Operation<String> nextval = OperationImpl.create(String.class, SQLOps.NEXTVAL, ConstantImpl.create("myseq"));
        assertEquals("myseq.nextval", new SQLSerializer(new Configuration(new SQLServerTemplates())).handle(nextval).toString());
    }

}