private void AssertBuild <T>(object defaultValue)
{
IColumn column = ColumnFactory.BuildTyped <T>((T)defaultValue);
Assert.NotNull(column);
Assert.True(column is IColumn <T>);
if (defaultValue != null)
{
column = ColumnFactory.Build(typeof(T), null);
Assert.NotNull(column);
Assert.True(column is IColumn <T>);
column = ColumnFactory.Build(typeof(T));
Assert.NotNull(column);
Assert.True(column is IColumn <T>);
}
}