Поблочное тестирование NHibernate UserTypes

Я создал пользовательский тип для System.Drawing.Color, и вот как я тестировал его с помощью MSTest и Moq .

ColorUserType.cs:

public class ColorUserType : IUserType
{
    public object Assemble( object cached, object owner )
    {
        return cached;
    }

    public object DeepCopy( object value )
    {
        return value;
    }

    public object Disassemble( object value )
    {
        return value;
    }

    public new bool Equals( object x, object y )
    {
        if(ReferenceEquals(x, y ) )
        {
            return true;
        }
        if( x == null || y == null )
        {
            return false;
        }
        return x.Equals( y );
    }

    public int GetHashCode( object x )
    {
        return x == null ? typeof( Color ).GetHashCode() + 473 : x.GetHashCode();
    }

    public bool IsMutable
    {
        get 
        {
            return true;
        }
    }

    public object NullSafeGet( IDataReader rs, string[] names, object owner )
    {
        var obj = NHibernateUtil.String.NullSafeGet( rs, names[0] );
        if( obj == null )
        {
            return null;
        }
        return ColorTranslator.FromHtml( (string)obj );
    }

    public void NullSafeSet( IDbCommand cmd, object value, int index )
    {
        if( value == null )
        {
            ( (IDataParameter)cmd.Parameters[index] ).Value = DBNull.Value;
        }
        else
        {
            ( (IDataParameter)cmd.Parameters[index] ).Value = ColorTranslator.ToHtml( (Color)value );
        }
    }

    public object Replace( object original, object target, object owner )
    {
        return original;
    }

    public Type ReturnedType
    {
        get
        {
            return typeof( Color );
        }
    }

    public SqlType[] SqlTypes
    {
        get
        {
            return new[] { new SqlType( DbType.StringFixedLength ) };
        }
    }
}

] ColorUserTypeTests.cs

    [TestClass]
    public class ColorUserTypeTests
    {
        public TestContext TestContext { get; set; }

        [TestMethod]
        public void AssembleTest()
        {
            var color = Color.Azure;
            var userType = new ColorUserType();
            var val = userType.Assemble( color, null );
            Assert.AreEqual( color, val );
        }

        [TestMethod]
        public void DeepCopyTest()
        {
            var color = Color.Azure;
            var userType = new ColorUserType();
            var val = userType.DeepCopy( color );
            Assert.AreEqual( color, val );
        }

        [TestMethod]
        public void DissasembleTest()
        {
            var color = Color.Azure;
            var userType = new ColorUserType();
            var val = userType.Disassemble( color );
            Assert.AreEqual( color, val );
        }

        [TestMethod]
        public void EqualsTest()
        {
            var color1 = Color.Azure;
            var color2 = Color.Bisque;
            var color3 = Color.Azure;
            var userType = new ColorUserType();

            var obj1 = (object)color1;
            var obj2 = obj1;

            Assert.IsFalse( userType.Equals( color1, color2 ) );
            Assert.IsTrue( userType.Equals( color1, color1 ) );
            Assert.IsTrue( userType.Equals( color1, color3 ) );
            Assert.IsFalse( userType.Equals( color1, null ) );
            Assert.IsFalse( userType.Equals( null, color1 ) );
            Assert.IsTrue( userType.Equals( null, null ) );
            Assert.IsTrue( userType.Equals( obj1, obj2 ) );
        }

        [TestMethod]
        public void GetHashCodeTest()
        {
            var color = Color.Azure;
            var userType = new ColorUserType();

            Assert.AreEqual( color.GetHashCode(), userType.GetHashCode( color ) );
            Assert.AreEqual( typeof( Color ).GetHashCode() + 473, userType.GetHashCode( null ) );
        }

        [TestMethod]
        public void IsMutableTest()
        {
            var userType = new ColorUserType();
            Assert.IsTrue( userType.IsMutable );
        }

        [TestMethod]
        public void NullSafeGetTest()
        {
            var dataReaderMock = new Mock();
            dataReaderMock.Setup( m => m.GetOrdinal( "white" ) ).Returns( 0 );
            dataReaderMock.Setup( m => m.IsDBNull( 0 ) ).Returns( false );
            dataReaderMock.Setup( m => m[0] ).Returns( "#ffffff" );

            var userType = new ColorUserType();
            var val = (Color)userType.NullSafeGet( dataReaderMock.Object, new[] { "white" }, null );

            Assert.AreEqual( "ffffffff", val.Name, "The wrong color was returned." );

            dataReaderMock.Setup( m => m.IsDBNull( It.IsAny() ) ).Returns( true );
            Assert.IsNull( userType.NullSafeGet( dataReaderMock.Object, new[] { "black" }, null ), "The color was not null." );

            dataReaderMock.VerifyAll();
        }

        [TestMethod]
        public void NullSafeSetTest()
        {
            const string color = "#ffffff";
            const int index = 0;

            var mockFactory = new MockFactory( MockBehavior.Default );

            var parameterMock = mockFactory.Create();
            parameterMock.SetupProperty( p => p.Value, string.Empty );

            var parameterCollectionMock = mockFactory.Create();
            parameterCollectionMock.Setup( m => m[0] ).Returns( parameterMock.Object );

            var commandMock = mockFactory.Create();
            commandMock.Setup( m => m.Parameters ).Returns( parameterCollectionMock.Object );

            var userType = new ColorUserType();

            userType.NullSafeSet( commandMock.Object, ColorTranslator.FromHtml( color ), index );
            Assert.AreEqual( 0, string.Compare( (string)( (IDataParameter)commandMock.Object.Parameters[0] ).Value, color, true ) );

            userType.NullSafeSet( commandMock.Object, null, index );
            Assert.AreEqual( DBNull.Value, ( (IDataParameter)commandMock.Object.Parameters[0] ).Value );

            mockFactory.VerifyAll();
        }

        [TestMethod]
        public void ReplaceTest()
        {
            var color = Color.Azure;
            var userType = new ColorUserType();
            Assert.AreEqual( color, userType.Replace( color, null, null ) );
        }

        [TestMethod]
        public void ReturnedTypeTest()
        {
            var userType = new ColorUserType();
            Assert.AreEqual( typeof( Color ), userType.ReturnedType );
        }

        [TestMethod]
        public void SqlTypesTest()
        {
            var userType = new ColorUserType();
            Assert.AreEqual( 1, userType.SqlTypes.Length );
            Assert.AreEqual( new SqlType( DbType.StringFixedLength ), userType.SqlTypes[0] );
        }
    }