public void Property_IsMarkedWithColumnType <TProperty>(Expression <Func <EntityData, TProperty> > property, TableColumnType expected)
{
// Arrange
PropertyInfo propertyInfo = PropertyAssert.GetPropertyInfo <EntityData, TProperty>(property);
// Act
TableColumnAttribute attr = propertyInfo.GetCustomAttributes <TableColumnAttribute>().Single();
// Assert
Assert.Equal(attr.ColumnType, expected);
}