我怎么能指示AutoFixture不打扰填写一些属性？

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问题描述

我有一组嵌套相当深的数据访问类的。

I have a set of Data Access classes that are nested fairly deep.

要构建的5人名单需要AutoFixture超过2分钟。每个单元测试2分钟，路长。

To construct a list of 5 of them takes AutoFixture more than 2 minutes. 2 minutes per Unit test is way to long.

如果我采用手动编码方式，我只会code了那些我所需要的，所以它会初始化更快。有没有办法告诉AutoFixture只做一些属性，因此它不能花时间与我的结构领域，我不需要？

If I was coding them by hand, I would only code up the ones I need, so it would initialize quicker. Is there a way to tell AutoFixture to only do some of the properties so it can not spend time with areas of my structure I don't need?

例如：

public class OfficeBuilding
{
   public List<Office> Offices {get; set;}
}

public class Office
{
   public List<PhoneBook> YellowPages {get; set;}
   public List<PhoneBook> WhitePages {get; set;}
}

public class PhoneBook
{
    public List<Person> AllContacts {get; set;}
    public List<Person> LocalContacts {get; set;}
}

public class Person
{
   public int ID { get; set; }
   public string FirstName { get; set;}
   public string LastName { get; set;}
   public DateTime DateOfBirth { get; set; }
   public char Gender { get; set; }
   public List<Address> Addresses {get; set;}
}

public class Addresses
{
   public string Address1 { get; set; }
   public string Address2 { get; set; }
}

有没有办法告诉AutoFixture创造 OfficeBuilding.Offices.YellowPages.LocalContacts 的值，但不会打扰 OfficeBuilding .Offices.YellowPages.AllContacts ？

Is there a way to tell AutoFixture to create values for OfficeBuilding.Offices.YellowPages.LocalContacts, but not to bother with OfficeBuilding.Offices.YellowPages.AllContacts?

推荐答案

一种选择是创建一个自定义，省略某个名字的属性：

One option is to create a Customization that omits properties of a certain name:

internal class PropertyNameOmitter : ISpecimenBuilder
{
    private readonly IEnumerable<string> names;

    internal PropertyNameOmitter(params string[] names)
    {
        this.names = names;
    }

    public object Create(object request, ISpecimenContext context)
    {
        var propInfo = request as PropertyInfo;
        if (propInfo != null && names.Contains(propInfo.Name))
            return new OmitSpecimen();

        return new NoSpecimen(request);
    }
}

您可以使用它，如下：

var fixture = new Fixture();
fixture.Customizations.Add(
    new PropertyNameOmitter("AllContacts"));

var sut = fixture.Create<OfficeBuilding>();
// -> The 'AllContacts' property should be omitted now.

另请参阅：