我无法在集成测试中以编程方式本地启动Azure功能。
我读到的第一篇文章是：
programmatically-starting-function-app-is-failing-without-descriptive-output
可是却根本帮不上忙。
这是我的职责：

using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.Functions.Worker;
using AdmGroup.Omega.Framework.Net.Mail;
using Newtonsoft.Json;

namespace AdmGroup.Omega.Services.Infrastructure.EmailFunction.Functions;

public class EmailService
{
    private readonly IMailMessageSender mailMessageSender;

    public EmailService(IMailMessageSender mailMessageSender)
    {
        this.mailMessageSender = mailMessageSender;
    }

    [Function("EmailService")]
    public async Task<IActionResult> Run
    (
        [RabbitMQTrigger(queueName: "EmailQueue", ConnectionStringSetting = "admgroup:omega:services:infraestructure:emailservice:rabbitmq")] MailMessage email)
    {
        var strEmail = JsonConvert.SerializeObject(email);
        Console.WriteLine(strEmail);
        await mailMessageSender.SendAsync(email);

        return new OkResult();
    }
}

这是Program.cs（我在其中配置依赖项注入）：

using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.DependencyInjection;
using AdmGroup.Omega.Framework.EmailServicing.Services;
using AdmGroup.Omega.Framework.Net.Mail;
using AdmGroup.Omega.Framework.Security;
using Azure.Security.KeyVault.Secrets;
using Microsoft.Extensions.Configuration;
using Azure.Identity;

var config = InitConfiguration();
var clientId = config["AzureKeyVault:ClientId"];
var keyVaultUrl = config["AzureKeyVault:KeyVaultUrl"];

if (!string.IsNullOrEmpty(clientId) && !string.IsNullOrEmpty(keyVaultUrl))
{
    var tokenCredential = new DefaultAzureCredential(new DefaultAzureCredentialOptions { ManagedIdentityClientId = clientId });

    var host = new HostBuilder()
    .ConfigureFunctionsWorkerDefaults()
    .ConfigureServices(s => s.AddSingleton<SecretClient>(_ => new(new Uri(keyVaultUrl), tokenCredential)))
    .ConfigureServices(s => s.AddSingleton<AzureKeyVaultSecretManager>())
    .ConfigureServices(s => s.AddSingleton<IMailMessageSender, Office365GraphEmailService>())
    .Build();

    await host.RunAsync();
}

/// <summary>
/// Allow test project to use an appsettings.json file.
/// Read RabbitMQ host and queue name from test appsettings
/// </summary>
/// <returns>Configuration</returns>
static IConfiguration InitConfiguration()
{
    return new ConfigurationBuilder()
       .AddJsonFile("local.settings.json")
        .AddEnvironmentVariables()
        .Build();
}

public partial class Program { }

如果我逃跑

func host start --dotnet-isolated-debug

从PowerShell（之前安装的"Azure Functions Core Tools"）启动函数时没有任何问题，然后我可以运行测试，但问题是我需要从测试本身启动函数，这就是测试自动化的理念。
我可以在测试中注入AZ函数类，并临时删除函数参数，以便测试我能够启动它

emailService.Run()

并且它可以工作，我也可以调试，但问题是当参数再次启用时，它会抱怨Run（）中缺少"MailMessage email"参数，这是它将从RabbitMQ队列中读取的内容，所以我卡住了...
接下来我可以尝试什么？

编辑1

最后我意识到这很容易，我可以只做Program.main（）从测试和它应该只是工作，但问题是这样做我得到下面的异常：

Exception has occurred: CLR/System.InvalidOperationException
An exception of type 'System.InvalidOperationException' occurred in System.Private.CoreLib.dll but was not handled in user code: 'The gRPC channel URI 'http://:50852' could not be parsed.'