CursorTests.cs

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// 
//  Copyright 2010-2014 Deveel
// 
//    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.
using System;

using Deveel.Data.Sql.Cursors;
using Deveel.Data.Sql.Expressions;
using Deveel.Data.Sql.Tables;
using Deveel.Data.Types;

using NUnit.Framework;

namespace Deveel.Data.Sql {
    [TestFixture]
    public class CursorTests : ContextBasedTest {
        protected override ISession CreateAdminSession(IDatabase database) {
            using (var session = base.CreateAdminSession(database)) {
                using (var query = session.CreateQuery()) {
                    var tableInfo = new TableInfo(ObjectName.Parse("APP.test_table"));
                    tableInfo.AddColumn("a", PrimitiveTypes.Integer());
                    tableInfo.AddColumn("b", PrimitiveTypes.String(), false);

                    query.CreateTable(tableInfo, false, false);
                    query.Commit();
                }
            }

            return base.CreateAdminSession(database);
        }

        [Test]
        public void DeclareInsensitiveCursor() {
            var query = new SqlQueryExpression(new []{new SelectColumn(SqlExpression.Constant("*")) });
            query.FromClause = new FromClause();
            query.FromClause.AddTable("test_table");

            Assert.DoesNotThrow(() => Query.DeclareInsensitiveCursor("c1", query));

            var exists = Query.ObjectExists(DbObjectType.Cursor, new ObjectName("c1"));
            Assert.IsTrue(exists);
        }
    }
}