为 Service Fabric 应用程序编写单元测试 Class

Writing UnitTests for a Service Fabric Application Class

我正在为 Service Fabric 应用程序编写单元测试 class。我 运行 遇到了一些我不知道如何修复的错误。 class 定义是这样的:

namespace SearchService
{
    internal sealed class SearchServiceClass : StatelessService
    {
        //variables defined followed by constructor
        private string jsonStr;
        public SearchServiceClass(StatelessServiceContext context)
            : base(context)
        {
            //constructor stuff
        }
        
        public bool IsDataJsonLoaded
        {
            get
            {
                return !(jsonStr == null);
            }
        }
    }
}

应用程序有一个测试 class 定义如下:

namespace SearchService.Tests
{
    //[TestClass]
    public class SearchServiceClassTest
    {
        [Fact]
        public void SearchServiceClassConstructor()
        {
           var searchServiceClass = new SearchServiceClass();
           Assert.True(searchServiceClass.IsDataJsonLoaded);
        }
    }
}

我收到以下错误:

There is no argument given that corresponds to the required formal parameter 'context' of 'SearchServiceClass.SearchServiceClass(StatelessServiceContext)'.

有人可以告诉我如何解决这个问题吗?

编辑:我一直在看 ServiceFabric.Mocks。我的理解是我需要使用 MockStatelessServiceContextFactory.Default 来创建模拟上下文。我该怎么做,下面的方法对吗?:

var searchServiceClass = new SearchServiceClass(MockStatelessServiceContextFactory.Default);

是的,您可以使用 ServiceFabric.Mocks 库,使用以下代码创建服务的测试实例:

var serviceInstance = new SearchServiceClass(MockStatelessServiceContextFactory.Default);

作为 Default 上下文的替代方法,您还可以构建自定义实例:

var newUri = new Uri("fabric:/MockApp/OtherMockStatelessService");
var serviceTypeName = "OtherMockServiceType";
var partitionId = Guid.NewGuid();
var replicaId = long.MaxValue;
var context = new MockCodePackageActivationContext("fabric:/MyApp", "MyAppType", "Code", "Ver", "Context", "Log", "Temp", "Work", "Man", "ManVer");
var context = MockStatelessServiceContextFactory.Create(context, serviceTypeName, newUri, partitionId, replicaId);
var serviceInstance = new SearchServiceClass(context);

有关详细信息,请参阅 this sample test and this one