依赖注入在.net core 2.0中进行统一测试

Question

我有采用DI方法的控制器。想使用单元测试来测试控制器的每个动作。 **控制器**

  public SearchController(ILookupSearch lookupSearch, IFullSearch fullSearch, IEmpUow uow, ILogger<SearchController> logger, TelemetryClient telemetryClient, IHostingEnvironment hostingEnvironment, IOptions<ConnectionStringsConfig> connectionString, IOptions<AppSettingsConfig> options)
    {
        this.LookupSearch = lookupSearch;
        this.FullSearch = fullSearch;
        this.EmpUow = uow;
        this.logger = logger;
        this.hostingEnvironment = hostingEnvironment;
        this.connectionString = connectionString.Value;
        this.appSettings = options.Value;
        this.telemetryClient = telemetryClient;
    }


    [Route("Test")]
        [ActionName("Test")]
        [HttpGet]
        public IActionResult Test()
        {
if(this.appsettings.enableDummyData){
            return this.SearchEmpData(new EmpIdQueryField() { Country = "Sweden", EMPID = 441150 });
           }
        }

调用转到控制器，但构造函数中的所有依赖项值均为null。

单元测试用例

   public async void Test1()
    {

        //Arrange

        Mock<IHostingEnvironment> hostingEnvironment = new Mock<IHostingEnvironment>();
        TelemetryClient telemetryClient = new TelemetryClient();
        Mock<ILogger<SearchController>> logger = new Mock<ILogger<SearchController>>();
        Mock<AppSettingsConfig> appSettings = new Mock<AppSettingsConfig>();

        Mock<IOptions<ConnectionStringsConfig>> connectionString = new Mock<IOptions<ConnectionStringsConfig>>();
        Mock<IOptions<AppSettingsConfig>> options = new Mock<IOptions<AppSettingsConfig>>();

        Mock<ILookupSearch> lookupSearch = new Mock<ILookupSearch>();
        Mock<IFullSearch> fullSearch = new Mock<IFullSearch>();
        Mock<IOneSoeUow> EmpUow = new Mock<IEmpUow>();

        //Act
        SearchController search = new SearchController(lookupSearch.Object, fullSearch.Object, oneSoeUow.Object, logger.Object, telemetryClient, hostingEnvironment.Object, connectionString.Object, options.Object);
        search.Test();

Answer 1

在Test操作中，您将使用appsettings属性，需要在模拟对象中设置appsettings实例，

    Mock<IOptions<AppSettingsConfig>> options = new Mock<IOptions<AppSettingsConfig>>();
    options.Setup(e=>e.appsettings).Returns(new Appsettings(){ enableDummyData = true });

它将enableDummyData模拟为true，

同样，您需要设置在此操作或其他操作中使用的依赖项的所有其他属性