我正在將我現有的 ASP.Net 5 Web 應用程式遷移到 ASP.Net 6，并遇到了讓集成測驗通過的最后障礙。
我自定義了 WebApplicationFactory 并拋出例外： Changing the host configuration using WebApplicationBuilder.WebHost is not supported. Use WebApplication.CreateBuilder(WebApplicationOptions) instead.
public class CustomWebApplicationFactory<TStartup> : WebApplicationFactory<TStartup> where TStartup : class
{
protected override void ConfigureWebHost(IWebHostBuilder builder)
{
Environment.SetEnvironmentVariable("ASPNETCORE_ENVIRONMENT", "IntegrationTests");
builder.ConfigureServices(services => {
// Create a new service provider.
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkInMemoryDatabase().AddLogging()
.BuildServiceProvider();
// Add a database context (AppDbContext) using an in-memory database for testing.
services.AddDbContextPool<AppDbContext>(options =>
{
options.UseInMemoryDatabase("InMemoryAppDb");
options.UseInternalServiceProvider(serviceProvider);
options.EnableSensitiveDataLogging();
options.EnableDetailedErrors();
options.LogTo(Console.WriteLine);
});
services.AddDbContextPool<AppIdentityDbContext>(options =>
{
options.UseInMemoryDatabase("InMemoryIdentityDb");
options.UseInternalServiceProvider(serviceProvider);
options.EnableSensitiveDataLogging();
options.EnableDetailedErrors();
options.LogTo(Console.WriteLine);
});
services.AddScoped<SignInManager<AppUser>>();
services.AddScoped<ILogger<UserRepository>>(provider => {
ILoggerFactory loggerFactory = provider.GetRequiredService<ILoggerFactory>();
return loggerFactory.CreateLogger<UserRepository>();
});
services.AddDistributedMemoryCache();
// Build the service provider.
var sp = services.BuildServiceProvider();
// Create a scope to obtain a reference to the database contexts
using (var scope = sp.CreateScope())
{
var scopedServices = scope.ServiceProvider;
var appDb = scopedServices.GetRequiredService<AppDbContext>();
var identityDb = scopedServices.GetRequiredService<AppIdentityDbContext>();
var logger = scopedServices.GetRequiredService<ILogger<CustomWebApplicationFactory<TStartup>>>();
// Ensure the database is created.
appDb.Database.EnsureCreated();
identityDb.Database.EnsureCreated();
try
{
// Seed the database with test data.
SeedData.PopulateTestData(identityDb);
SeedData.PopulateTestData(appDb);
}
catch (Exception ex)
{
logger.LogError(ex, $"An error occurred seeding the "
$"database with test messages. Error: {ex.Message}");
}
}
});
}
}
例外：
Message:?
System.NotSupportedException : The content root changed from "C:\Projects\C#\AspNetCoreApi\src\Web.Api\" to "C:\Projects\C#\AspNetCoreApi\test\Web.Api.IntegrationTests\bin\Debug\net6.0\". Changing the host configuration using WebApplicationBuilder.WebHost is not supported. Use WebApplication.CreateBuilder(WebApplicationOptions) instead.
Stack Trace:?
ConfigureWebHostBuilder.UseSetting(String key, String value)
HostingAbstractionsWebHostBuilderExtensions.UseContentRoot(IWebHostBuilder hostBuilder, String contentRoot)
Program.<Main>$(String[] args)?line?58
--- End of stack trace from previous location ---
HostingListener.CreateHost()
<>c__DisplayClass8_0.<ResolveHostFactory>b__0(String[] args)
DeferredHostBuilder.Build()
WebApplicationFactory`1.CreateHost(IHostBuilder builder)
WebApplicationFactory`1.ConfigureHostBuilder(IHostBuilder hostBuilder)
WebApplicationFactory`1.EnsureServer()
WebApplicationFactory`1.CreateDefaultClient(DelegatingHandler[] handlers)
WebApplicationFactory`1.CreateDefaultClient(Uri baseAddress, DelegatingHandler[] handlers)
WebApplicationFactory`1.CreateClient(WebApplicationFactoryClientOptions options)
WebApplicationFactory`1.CreateClient()
MyControllerIntegrationTests.ctor(CustomWebApplicationFactory`1 factory)?line?15
任何建議和見解表示贊賞。
uj5u.com熱心網友回復：
由于 Program.cs 中的這一行而發生錯誤：
builder.WebHost.UseContentRoot(Path.GetFullPath(Directory.GetCurrentDirectory())); // Changing the host configuration using WebApplicationBuilder.Host is not supported. Use WebApplication.CreateBuilder(WebApplicationOptions) instead.
我添加了這個，因為我想保留args，因此我使用了WebApplication.CreateBuilder(args). 感謝@davidfowl，我使用了以下代碼片段：
var builder = WebApplication.CreateBuilder(new WebApplicationOptions
{
ApplicationName = typeof(Program).Assembly.FullName,
ContentRootPath = Path.GetFullPath(Directory.GetCurrentDirectory()),
WebRootPath = "wwwroot",
Args = args
});
并洗掉了錯誤的代碼行。請注意，builder.WebHost.UseContentRoot只要輸入引數與默認值不同，就會拋出例外。就我而言，它在運行集成測驗時拋出例外，但在正確運行應用程式時不會拋出例外。
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