Question

我试图在从实体框架返回数据的简单控制器上运行集成测试。我已经编写了单元测试，并且所有工作都按预期进行。

我已经连接了xUnit Integration测试，但是当我运行一个简单的Get to my controller时，却找不到404。如果我在浏览器中启动该项目并通过邮递员运行get命令，则会命中控制器并正确执行操作。

我的xUnit TestFixture类

public sealed class TestFixture<TStartup> : IDisposable where TStartup : class
{
    public readonly TestServer Server;
    public readonly HttpClient Client;

    public TestFixture()
    {
        var builder = BuildWebHost();
        Server = new TestServer(builder);
        Client = Server.CreateClient();
    }

    public static IWebHostBuilder BuildWebHost()
    {
        var host = new WebHostBuilder()
            .UseStartup<TestStartup>()
            .ConfigureAppConfiguration((hostContext, config) =>
              {
                  config.Sources.Clear();
                  config.SetBasePath(Directory.GetCurrentDirectory());
                  config.AddJsonFile("appsettings.test.json", optional: true, reloadOnChange: true);
              });
        return host;
    }
}

我的控制器测试班

public class FlowApiControllerTests : IClassFixture<TestFixture<Startup>>
{
    private readonly HttpClient _httpClient;

    public FlowApiControllerTests(TestFixture<Startup> fixture)
    {
        _httpClient = fixture.Client;
    }

    [Fact]
    public async Task Get_FlowApiTest()
    {
        var response = await _httpClient.GetAsync("/flowapi");

        response.StatusCode.Should().Be(HttpStatusCode.OK);
        var content = await response.Content.ReadAsStringAsync();
        var model = JsonConvert.DeserializeObject<List<FlowApi>>(content);
        model.Count.Should().Be(2);
    }
}

最后是我的控制器

[Route("[controller]")]
[ApiController]
public class FlowApiController : ControllerBase
{
    private readonly IFlowApiRepository _repository;

    public FlowApiController(IFlowApiRepository repository)
    {
        _repository = repository;
    }

    // GET: api/FlowApi
    [HttpGet]
    public async Task<IActionResult> Get()
    {
        var result = await _repository.Select<FlowApi>();
        return Ok(result);
    }
}

我不知道为什么我在测试中没有击中控制器，但可以从邮递员中击中它。

Answer 1

由于@Ajeet Kumar向我指出了WebApplicationFactory的方向，因此我采用了the ASP.NET Core Integration Test docs中的方法，并修改了TestFixture类以反映该方法。我还导入了nuget包Microsoft.AspNetCore.Mvc.Testing。我的TestFixture类现在看起来像

protected override void ConfigureWebHost(IWebHostBuilder builder)
{
        builder.ConfigureServices(services =>
        {
            var descriptor = services.SingleOrDefault(d => d.ServiceType == typeof(DbContextOptions<ApiContext>));

            if (descriptor != null)
            {
                services.Remove(descriptor);
            }

            // Add ApplicationDbContext using an in-memory database for testing.
            services.AddDbContext<ApiContext>((options, context) =>
            {
                context.UseInMemoryDatabase("InMemoryDbForTesting");
            });

            services.AddTransient<DatabaseSeeder>();

            // Build the service provider.
            var sp = services.BuildServiceProvider();

            using (var scope = sp.CreateScope())
            {
                var scopedServices = scope.ServiceProvider;
                var db = scopedServices.GetRequiredService<ApiContext>();

                // Ensure the database is created.
                db.Database.EnsureCreated();

                try
                {
                    // Seed the database with test data.
                    var seeder = scopedServices.GetService<DatabaseSeeder>();
                    seeder.SeedFlowApplicationData().Wait();

HttpClient GET返回未找到的404

1 个答案: