在单位测试中包括基于事件的模型

Question

我是C＃和.NET开发的新手，并且正在从 thittingeventservice.cs 中测试一种方法。

ThingUpDatedEvent.cs 包括在服务文件中，我正在尝试将其包括在测试中，但是我在1中遇到了麻烦。确保测试已识别为2。确定什么。我需要提供才能正确包括在内。

我遇到以下错误：

models/thingUpdatedEvent.cs（12,15）：错误CS1729：'对象'不包含构造函数，该构造函数

，该构造函数指向：base>：base（） ThingUpdatedEvent.cs 。

如果我从测试中删除以下内容：

ThingUpdatedEvent request = new ThingUpdatedEvent
   (updateRequest, thingBeforeUpdate, thingAfterUpdate)
   {
     UpdateRequest = UpdateThingRequest,
     ThingBeforeUpdate = ThingBeforeUpdate,
     ThingAfterUpdate = ThingAfterUpdate
   };
            
   await this._svc.HandleThingUpdatedAsync(request);

然后测试运行，但是我得到了 soq.mockexception 错误，说明它“预期一次在模拟上调用一次，但为0次”。这使我认为我需要包括 thingUpdatedEvent ，以便测试运行和通过。

---

问题：

• 我是否需要在测试中包括 thitupDatedEvent ？
  • 如果没有，什么可能导致调用不运行？
• 是：base（）在基于事件的模型上允许吗？

---

---

ThingUpDatedEvent.cs

namespace someFolder.someOtherFolder.etc
{
    public class ThingUpdatedEvent
    {
        public ThingUpdatedEvent(
            [NotNull] UpdateThingRequest updateRequest,
            [NotNull] Thing thingBeforeUpdate,
            [NotNull] Thing thingAfterUpdate) 
            : base(updateRequest, thingBeforeUpdate, thingAfterUpdate) // is base:() necessary for this?
        {
            this.UpdateRequest = updateRequest;
            this.ThingBeforeUpdate = thingBeforeUpdate;
            this.ThingAfterUpdate = thingAfterUpdate;
        }

        [NotNull]
        public UpdateThingRequest UpdateRequest { get; set; }

        [NotNull]
        public Thing ThingBeforeUpdate { get; set; }

        [NotNull]
        public Thing ThingAfterUpdate { get; set; }
    }
}

---

ThingEventservicEtests.cs

     public class ThingEventServiceTests
     {
        Mock<IAuditLog> _auditLog;
        Mock<AuditHelper> _auditHelper;
        ThingEventService _svc;

        public ThingEventServiceTests()
        {
            this._auditLog = new Mock<IAuditLog>();
            this._auditHelper = new Mock<AuditHelper>();
            this._svc = new ThingEventService(
                Mock.Of<IAEService>(),
                this._auditLog.Object);
        }

        [Fact]
        public async Task CanHandleThingUpdatedAsync()
        {
            var SourceEntities = new List<AEModel>
            { 
                AETypes.System.Create("Things") 
            };
            
            ThingUpdatedEvent request = new ThingUpdatedEvent
            (updateRequest, thingBeforeUpdate, thingAfterUpdate)
            {
                UpdateRequest = UpdateThingRequest,
                ThingBeforeUpdate = ThingBeforeUpdate,
                ThingAfterUpdate = ThingAfterUpdate
            };
            
            await this._svc.HandleThingUpdatedAsync(request);

            It.IsAny<IEnumerable<AEModel>>();
            this._auditLog.Verify(m => m.RecordEventAsync(
                "123435",
                "requester",
                SourceEntities,
                AuditEventTypes.ThingEdited,
                "Thing edited",
                "Thing was edited: Some Title",
                It.IsAny<IEnumerable<FieldChange>>(),
                It.IsAny<IEnumerable<string>>(),
                It.IsAny<IEnumerable<Tag>>(),
                null,
                null,
                null
                ), Times.Once);
        }
  }

---

ThingEventservice.cs

public async task HandleThingUpdatedAsync(ThingUpdatedEvent evt)
{

            // if (condition)
            {
                IEnumerable<AEModel> defaultSourceEntities = await this._auditHelper
                    .GetDefaultSourceEntitiesForThingEventAsync(evt.ThingAfterUpdate);
                Task auditLogEditTask = this._auditLog.RecordEventAsync(
                    id: evt.ThingAfterUpdate.Id.ToString(),
                    user: evt.UpdateRequest.Requester,
                    sourceEntities: defaultSourceEntities,
                    eventType: AuditEventTypes.ThingEdited,
                    title: "Thing edited",
                    description: $"Thing was edited: {evt.ThingAfterUpdate.Title} (ID: {evt.ThingAfterUpdate.Id})",
                    fieldChanges: fieldChanges,
                    comments: null,
                    tags: this._auditHelper.GetDefaultTagsForThing(evt.ThingAfterUpdate));
                tasks.Add(auditLogEditTask);
            }

}

Answer 1

就可以做到

        [Fact]
        public async Task CanHandleThingUpdatedAsync()
        {

            UpdateThingRequest updateThingRequest = new UpdateThingRequest(
                something: "something",
                etc: "etc"
            );

            Thing thingBeforeUpdateRequest = new Thing
            {
                Name = "Paper Pusher"
            };

            Thing thingAfterUpdateRequest = new Thing
            {
                Name = "Paper Flinger"
            };

            ThingUpdatedEvent request = new ThingUpdatedEvent(updateThingRequest, thingBeforeUpdateRequest, thingAfterUpdateRequest);
            
            await this._svc.HandleThingUpdatedAsync(request);

// etc

更新：我无需更新 thitupDatedEvent.cs 。感谢@ralf指出了基类的问题，并指向我朝正确的方向指导我。