NumericObjectTests.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.Objects;
using Deveel.Data.Types;

using NUnit.Framework;

namespace Deveel.Data {
    [TestFixture]
    [Category("Data Objects")]
    [Category("Numbers")]
    public class NumericObjectTests {
        [Test]
        public void Integer_Create() {
            var obj = DataObject.Integer(33);
            Assert.IsNotNull(obj);
            Assert.IsInstanceOf<NumericType>(obj.Type);
            Assert.AreEqual(SqlTypeCode.Integer, obj.Type.TypeCode);
            Assert.AreEqual(33, obj);
        }

        [Test]
        public void BigInt_Create() {
            var obj = DataObject.BigInt(8399902L);
            Assert.IsNotNull(obj);
            Assert.IsInstanceOf<NumericType>(obj.Type);
            Assert.AreEqual(SqlTypeCode.BigInt, obj.Type.TypeCode);
            Assert.AreEqual(8399902L, obj);         
        }

        [Test]
        public void Integer_Compare_Equal() {
            var obj1 = DataObject.Integer(33);
            var obj2 = DataObject.Integer(33);

            Assert.IsNotNull(obj1);
            Assert.IsNotNull(obj2);

            Assert.IsInstanceOf<NumericType>(obj1.Type);
            Assert.IsInstanceOf<NumericType>(obj2.Type);

            Assert.AreEqual(SqlTypeCode.Integer, obj1.Type.TypeCode);
            Assert.AreEqual(SqlTypeCode.Integer, obj2.Type.TypeCode);

            Assert.IsTrue(obj1.IsComparableTo(obj2));
            Assert.AreEqual(0, obj1.CompareTo(obj2));
        }

        [Test]
        public void Integer_Compare_NotEqual() {
            var obj1 = DataObject.Integer(33);
            var obj2 = DataObject.Integer(87);

            Assert.IsNotNull(obj1);
            Assert.IsNotNull(obj2);

            Assert.IsInstanceOf<NumericType>(obj1.Type);
            Assert.IsInstanceOf<NumericType>(obj2.Type);

            Assert.AreEqual(SqlTypeCode.Integer, obj1.Type.TypeCode);
            Assert.AreEqual(SqlTypeCode.Integer, obj2.Type.TypeCode);

            Assert.IsTrue(obj1.IsComparableTo(obj2));
            Assert.AreEqual(-1, obj1.CompareTo(obj2));
        }

        [Test]
        public void Integer_Convert_ToDouble() {
            var obj = DataObject.Integer(33);
            Assert.IsNotNull(obj);
            Assert.IsInstanceOf<NumericType>(obj.Type);
            Assert.AreEqual(SqlTypeCode.Integer, obj.Type.TypeCode);
            Assert.AreEqual(33, obj);

            DataObject result = null;
            Assert.DoesNotThrow(() => result = obj.CastTo(PrimitiveTypes.Numeric(SqlTypeCode.Double)));
            Assert.IsNotNull(result);
            Assert.IsInstanceOf<NumericType>(result.Type);
            Assert.AreEqual(SqlTypeCode.Double, result.Type.TypeCode);
        }

        [Test]
        public void Integer_Convert_ToVarChar() {
            var obj = DataObject.Integer(33);
            Assert.IsNotNull(obj);
            Assert.IsInstanceOf<NumericType>(obj.Type);
            Assert.AreEqual(SqlTypeCode.Integer, obj.Type.TypeCode);
            Assert.AreEqual(33, obj);

            DataObject result = null;
            Assert.DoesNotThrow(() => result = obj.AsVarChar());
            Assert.IsNotNull(result);
            Assert.IsInstanceOf<StringType>(result.Type);
            Assert.AreEqual("33", ((SqlString)result.Value).Value);
        }

        [Test]
        public void Integer_Convert_ToBoolean() {
            var obj = DataObject.Integer(1);
            Assert.IsNotNull(obj);
            Assert.IsInstanceOf<NumericType>(obj.Type);
            Assert.AreEqual(SqlTypeCode.Integer, obj.Type.TypeCode);
            Assert.AreEqual(1, obj);

            DataObject result = null;
            Assert.DoesNotThrow(() => result = obj.AsBoolean());
            Assert.IsNotNull(result);
            Assert.IsInstanceOf<BooleanType>(result.Type);
            Assert.IsTrue((SqlBoolean)result.Value);
        }
    }
}