CreateViewStatementTests.cs

Go to the documentation of this file.

// 
//  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 System.Collections.Generic;
using System.Linq;

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

using NUnit.Framework;

namespace Deveel.Data.Sql.Statements {
    [TestFixture]
    public class CreateViewStatementTests : 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 ParseSimpleCreateView() {
            const string sql = "CREATE VIEW text_view1 AS SELECT * FROM test_table WHERE a = 1";

            var statements = SqlStatement.Parse(sql);
            Assert.IsNotNull(statements);

            var statementList = statements.ToList();
            Assert.IsNotEmpty(statementList);
            Assert.AreEqual(1, statementList.Count);
            Assert.IsInstanceOf<CreateViewStatement>(statementList[0]);

            var createView = (CreateViewStatement) statementList[0];
            Assert.IsNotNull(createView.SourceQuery);
            Assert.IsTrue(createView.IsFromQuery);

            Assert.IsNotNull(createView.ViewName);
        }


        [Test]
        public void ParseCreateViewWithColumns() {
            const string sql = "CREATE VIEW text_view1 (a, b, c) AS SELECT * FROM test_table WHERE a = 1";

            IEnumerable<SqlStatement> statements = null;
            Assert.DoesNotThrow(() => statements = SqlStatement.Parse(sql));
            Assert.IsNotNull(statements);

            var statementList = statements.ToList();
            Assert.IsNotEmpty(statementList);
            Assert.AreEqual(1, statementList.Count);
            Assert.IsInstanceOf<CreateViewStatement>(statementList[0]);

            var createView = (CreateViewStatement)statementList[0];
        }

        [Test]
        public void ParseCreateViewWithOrReplace() {
            const string sql = "CREATE OR REPLACE VIEW text_view1 AS SELECT * FROM test_table WHERE a = 1";

            IEnumerable<SqlStatement> statements = null;
            Assert.DoesNotThrow(() => statements = SqlStatement.Parse(sql));
            Assert.IsNotNull(statements);

            var statementList = statements.ToList();
            Assert.IsNotEmpty(statementList);
            Assert.AreEqual(1, statementList.Count);
            Assert.IsInstanceOf<CreateViewStatement>(statementList[0]);

            var createView = (CreateViewStatement)statementList[0];
        }

        [Test]
        public void ExecuteSimpleCreateView() {
            const string sql = "CREATE VIEW text_view1 AS SELECT * FROM test_table WHERE a = 1";

            IEnumerable<SqlStatement> statements = null;
            Assert.DoesNotThrow(() => statements = SqlStatement.Parse(sql));
            Assert.IsNotNull(statements);

            var list = statements.ToList();

            Assert.AreEqual(1, list.Count);

            var statement = list[0];

            Assert.IsNotNull(statement);
            Assert.IsInstanceOf<CreateViewStatement>(statement);

            ITable result = null;
            Assert.DoesNotThrow(() => result = statement.Execute(Query));
            Assert.IsNotNull(result);
            Assert.AreEqual(1, result.RowCount);
        }
    }
}