XUnitDIStudy/XUnitDIStudy.Test/IntegrationTest/CustomWebAppFactory.cs

using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc.Testing;
using Microsoft.AspNetCore.TestHost;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace XUnitDIStudy.Test.IntegrationTest
{
    /// <summary>
    /// 自定义WebApp工厂
    /// </summary>
    public class CustomWebAppFactory<TStartup> : WebApplicationFactory<TStartup> where TStartup : class
    {
        protected override IHostBuilder CreateHostBuilder() 
        {
            return base
                 .CreateHostBuilder()
                 .ConfigureHostConfiguration(config =>
                 {
                     config.AddEnvironmentVariables("ASPNETCORE");
                 });
        }

        protected override IWebHostBuilder CreateWebHostBuilder() 
        { 
            return  base
                .CreateWebHostBuilder()
                .UseEnvironment("Testing");
        }

        protected override TestServer CreateServer(IWebHostBuilder builder)
        {
            return base.CreateServer(builder);
        }

        protected override void ConfigureWebHost(IWebHostBuilder builder)
        {
            //Startup.ConfigureServices之后执行
            builder.ConfigureServices(services =>
            {

            });

            //后执行
            builder.ConfigureTestServices(services =>
            {

            });

        }
    }
}