将起订量与 Entity Framework 一起使用 6 - 模拟包含和位置

Question

我正在尝试使用 Moq 和 EntityFramework.Testing.Moq 扩展方法创建一些内存中 dbContext 模拟：

https://github.com/scott-xu/EntityFramework.Testing

当我尝试使用模拟上下文对急切加载的查询进行单元测试时，我遇到了困难。问题是，根本没有选择任何东西。我知道应该选择一些东西，因为当我使用 LINQPad 将同一个查询指向我的源数据库时，我得到了我期望的 2 个结果。

我永远不知道我需要多少代码等post，所以希望下面的内容会有所帮助。

数据图

我有两个主表，dbo.Applicant 主要包含用户详细信息，dbo.Application 包含求职申请，dbo.Application 挂钩了查找表：

示例模型

这是基于上图的代码优先方法。我已删除属性以保持代码干净并切合问题的要点：

[Table("Application")]
public partial class Application
{
    [Min(1)]
    public int Id { get; set; }

    [Required]
    [StringLength(50)]
    public string ApplicationId { get; set; }

    [Min(1)]
    public int ApplicantId { get; set; }

    public virtual Applicant Applicant { get; set; }     
}

[Table("Applicant")]
public partial class Applicant
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public Applicant()
    {
        Applications = new HashSet<Application>();
        RowStatus = "L";
    }

    public int Id { get; set; }

    [Required]
    public string FullName { get; set; }

    [Required]
    public string AddressLine1 { get; set; }

    [Required]
    public string Email { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<Application> Applications { get; set; }
}

上下文

再次减少上下文，但以防万一我在评论中要求它：

public partial class WorkExperienceContext : DbContext
{
    public WorkExperienceContext()
        : base("name=WorkExperienceContext")
    {
        this.Configuration.LazyLoadingEnabled = false;

    }

    public WorkExperienceContext(string userTestConnectionString)
        : base(userTestConnectionString)
    {
        Trace.Write("Using test context " + Add to dictionary);
    }

    public virtual DbSet<Applicant> Applicants { get; set; }
    public virtual DbSet<Application> Applications { get; set; }

}

单元测试方法

以下是（再次）单元测试方法的精简版，我希望两个应用程序记录可以通过基于电子邮件。

从下面可以看出，有：

2 Application 条路西法记录 (ApplicantId = 666)
有一条 Applicant 条记录，其电子邮件为 misunderstood@fireandbrimestone.co.uk

我的问题是 test 是 null，当使用相同的代码查询数据库本身时，我得到了正确的结果。我很困惑我需要做什么。请记住，我正在使用 EntityFramework.Testing.Moq.SetupData() 方法来处理 DbSet 方法的模拟并将 List<> 种子数据转换为 IQueryable 集合。

    public void InMemory_Find_Application_By_Email_EFMoq()
    {

        var applications = new List<Application>
        {
            new Application { Id = 1, ApplicantId = 666, ApplicationId = "1-a", DivisionId = 2, PublishingAreaId = 4, SourceId = 2, SkillsLearnt = "How to pick up  pen", RowStatus="L", ApplicantStartDateId = 1,
                ApplicantDisabilityId = 2, CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay } ,
            new Application { Id = 2, ApplicantId = 666, ApplicationId = "1-a", DivisionId = 3, PublishingAreaId = 4, SourceId = 2, SkillsLearnt = "How to pick up  pen", RowStatus="L", ApplicantStartDateId = 1,
                ApplicantDisabilityId = 2,CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay   } ,
            new Application { Id = 3, ApplicantId = 5, ApplicationId = "1-b", DivisionId = 3, PublishingAreaId = 1, SourceId = 2, SkillsLearnt = "Reading a book well" , RowStatus="L", ApplicantStartDateId = 1,
                ApplicantDisabilityId = 2,CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay     } ,
            new Application { Id = 4, ApplicantId = 5, ApplicationId = "1-b", DivisionId = 2, PublishingAreaId = 1, SourceId = 2, SkillsLearnt = "Reading a book well ", RowStatus="L", ApplicantStartDateId = 1,
                ApplicantDisabilityId = 2  ,CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay   } ,
            new Application { Id = 5, ApplicantId = 5, ApplicationId = "1-b", DivisionId = 7, PublishingAreaId = 1, SourceId = 2, SkillsLearnt = "Reading a book well" , RowStatus="L", ApplicantStartDateId = 1,
                ApplicantDisabilityId = 2 ,CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay    } ,
            new Application { Id = 6, ApplicantId = 24, ApplicationId = "1-c", DivisionId = 10, PublishingAreaId = 3, SourceId = 1, SkillsLearnt = "I can now re-iterate stuff", RowStatus="L", ApplicantStartDateId = 1,
                ApplicantDisabilityId = 2,CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay  },
            new Application { Id = 7, ApplicantId = 21, ApplicationId = "1-d", DivisionId = 2, PublishingAreaId = 2, SourceId = 1, SkillsLearnt = "I made some bread the other day", RowStatus="L", ApplicantStartDateId = 1,
                ApplicantDisabilityId = 2 ,CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay   }
        };

        var applicants = new List<Applicant>
        {
            new Applicant {Id = 5, FullName = "Pen Is", AddressLine1="Somewhere Over the Rainbow", County="West Sussex", Email="pen_is@hotmail.co.uk", RowStatus = "L",
            GenderId = 2, EducationId = 1, CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay, PostCode="PEN 1ST", Telephone="N/A"},
            new Applicant {Id = 24, FullName = "Gareth Bradley", AddressLine1="an address", County="West Sussex", Email="gareth.bradley@hachette.co.uk", RowStatus = "L",
            GenderId = 2, EducationId = 1, CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay, PostCode="bn13 3qb",Telephone="N/A"}  ,
            new Applicant {Id = 21, FullName = "Lizzy Windsor", AddressLine1="A Palace (Take your pick)", County="Berkshire", Email="HerRoyalMaj@TheCrownJewels.co.uk", RowStatus = "L",
            GenderId = 2, EducationId = 1, CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay, PostCode="BE1 1HM",Telephone="N/A"} ,
            new Applicant {Id = 666, FullName = "Lucifer MorningStar", AddressLine1="Hotsy Street", County="Down South", Email="misunderstood@fireandbrimes1one.co.uk" , RowStatus = "L",
            GenderId = 3, EducationId = 1, CreatedDate = DateTime.Now, CreatedTime = DateTime.Now.TimeOfDay, PostCode="HE11 6SS",Telephone="666-666"}
        };


        foreach (Applicant applicant in applicants)
        {
            applicant.Applications = applications.Where(a => a.ApplicantId == applicant.Id).ToArray();

        }

        foreach (Application application in applications)
        {
            application.Applicant = applicants.SingleOrDefault(a => a.Id == application.ApplicantId);
        }

        var mockSet = new Mock<DbSet<Application>>()
            .SetupData(applications);

        var mockSetUsers = new Mock<DbSet<Applicant>>()
            .SetupData(applicants);

        var mockContext = new Mock<WorkExperienceContext>();
        mockContext.Setup(c => c.Applications).Returns(mockSet.Object);
        mockContext.Setup(c => c.Applicants).Returns(mockSetUsers.Object);

        var mockService = new WorkExperienceFormService(mockContext.Object);

        var test = mockContext.Object
                 .Applications
                 .Include(a => a.Applicant)
                 .Where(e => e.Applicant.Email == "misunderstood@fireandbrimestone.co.uk")  
                 .ToList();

        Assert.AreEqual(2, test.Count());
    }

以下是我的 LINQPad 在没有模拟上下文的情况下提取数据的证据：

Answer 1

可能是您发布代码时的错字，但是 e-mail 对应 'Lucifer MorningStar' 是 misunderstood@fireandbrimes1one.co.uk 而不是 misunderstood@fireandbrimestone.co.uk

将起订量与 Entity Framework 一起使用 6 - 模拟包含和位置

Using Moq with Entity Framework 6 - Mocking Include and Where

c#

unit-testing

entity-framework

moq

entity-framework-6

数据图

示例模型

上下文

单元测试方法