我正在为我的 fixture 制作 tests

在我的 FixtureFactory 中,我制作了自己的 ServiceCollection :

    private static ServiceCollection CreateServiceCollection()
    {
        var services = new ServiceCollection();

        services.AddScoped<IConfiguration>();
        services.AddScoped<ITokenService, TokenService>();
        services.AddDbContext<TaskManagerDbContext>(o => o.UseInMemoryDatabase(Guid.NewGuid().ToString()));
        services.AddIdentity<ApplicationUser, IdentityRole>(options =>
        {
            options.Password.RequiredLength = 6;
            options.Password.RequireLowercase = false;
            options.Password.RequireUppercase = false;
            options.Password.RequireNonAlphanumeric = false;
            options.Password.RequireDigit = false;
            options.User.RequireUniqueEmail = true;
        }).AddEntityFrameworkStores<TaskManagerDbContext>();

        return services;
    }

然后,我从 services 得到这个 scope :
    var services = CreateServiceCollection().BuildServiceProvider().CreateScope();

    var context = services.ServiceProvider.GetRequiredService<TaskManagerDbContext>();
    var userManager = services.ServiceProvider.GetRequiredService<UserManager<ApplicationUser>>();
    var roleManager = services.ServiceProvider.GetRequiredService<RoleManager<IdentityRole>>();
    var signInManager = services.ServiceProvider.GetRequiredService<SignInManager<ApplicationUser>>();
    var tokenService = services.ServiceProvider.GetRequiredService<TokenService>();

当我将 TokenService 添加到我的 ServiceCollection 时,问题就开始了。
TokenService 的构造函数如下所示:
    private readonly IConfiguration configuration;

    private readonly UserManager<ApplicationUser> userManager;

    public TokenService(IConfiguration configuration, UserManager<ApplicationUser> userManager)
    {
        this.configuration = configuration;
        this.userManager = userManager;
    }

当我启动Core应用程序时,它的效果很好,但不能从我上面提到的ServiceCollection中使用。

在测试中,我开始收到此错误:



当我将 services.AddScoped<IConfiguration>(); 添加到我的 ServiceCollection 以及当我开始获得所需的服务 TokenService 时,此错误开始显示。

我的问题是,如何正确注册我在 Configuration 中使用的 Service

我使用 Configurationsettings.json 获取项目。

编辑:

我的 fixture 和示例测试类:
public class ServicesFixture
{
    public TaskManagerDbContext Context { get; private set; }

    public UserManager<ApplicationUser> UserManager { get; private set; }

    public RoleManager<IdentityRole> RoleManager { get; private set; }

    public SignInManager<ApplicationUser> SignInManager { get; private set; }

    public TokenService TokenService { get; private set; }

    public ServicesFixture()
    {
        var servicesModel = ServicesFactory.CreateProperServices();

        this.Context = servicesModel.Context;
        this.UserManager = servicesModel.UserManager;
        this.RoleManager = servicesModel.RoleManager;
        this.SignInManager = servicesModel.SignInManager;
        this.TokenService = servicesModel.TokenService;
    }

    [CollectionDefinition("ServicesTestCollection")]
    public class QueryCollection : ICollectionFixture<ServicesFixture>
    {
    }
}

测试:
[Collection("ServicesTestCollection")]
public class CreateProjectCommandTests
{
    private readonly TaskManagerDbContext context;

    public CreateProjectCommandTests(ServicesFixture fixture)
    {
        this.context = fixture.Context;
    }
}

编辑2

当我从我的集合中删除 AddScoped<IConfiguration>(); 并运行测试时,我收到此错误:

最佳答案

您添加的IConfiguration没有实现。

在startup.cs中,框架将在后台创建一个实现并将其添加。您必须使用ConfigurationBuilder进行相同的操作

var builder = new ConfigurationBuilder()
    //.SetBasePath("path here") //<--You would need to set the path
    .AddJsonFile("appsettings.json"); //or what ever file you have the settings

IConfiguration configuration = builder.Build();

services.AddScoped<IConfiguration>(_ => configuration);

//...

关于c# - 在自己的 ServiceCollection 中获取 IConfiguration,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/57115707/

10-12 14:20