I am writing integration tests for my app which uses .net5 I have used WebApplicationFactory with IHostBuilder for setting up environment.
Custom fixture ->
public class TestFixture<T> : WebApplicationFactory<Program>
{
protected override IHostBuilder CreateHostBuilder()
{
var builder = Host.CreateDefaultBuilder();
builder.ConfigureAppConfiguration((hostingContext, config) =>
{
var env = hostingContext.HostingEnvironment;
config.SetBasePath(env.ContentRootPath);
config.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true);
config.AddEnvironmentVariables();
})
.ConfigureServices((hostContext, services) => { services.Configure(hostContext); });
return builder;
}
protected override void ConfigureWebHost(IWebHostBuilder builder)
{
builder.ConfigureTestServices((services) =>
{
services.RemoveAll(typeof(IHostedService));
});
}
}
services.Configure(hostContext) calls UnityContainer which registers workflows(https://github.com/danielgerlag/workflow-core).
Test class(gives error when test is run)-> Error
Error desc -> No application configured. Please specify an application via IWebHostBuilder.UseStartup, IWebHostBuilder.Configure, or specifying the startup assembly via StartupAssemblyKey in the web host configuration
>Solution :
Add this code : .ConfigureWebHostDefaults(b => b.Configure(app => {}));
after .ConfigureServices call
you are using a Worker Service that doesn’t run a web host. However, the WebApplicationFactory still expects one, So create an empty web application.