public async Task Ivoking_initializeasync_should_invoke_all_previously_added_initializers()
{
var firstInitializer = new Mock <IStartupInitializer>();
var secondInitializer = new Mock <IStartupInitializer>();
var startupInitializer = new StartupInitializer();
startupInitializer.AddInitializer(firstInitializer.Object);
startupInitializer.AddInitializer(secondInitializer.Object);
await startupInitializer.InitializeAsync();
firstInitializer.Verify(p => p.InitializeAsync(), Times.Once);
secondInitializer.Verify(p => p.InitializeAsync(), Times.Once);
}
public static IServiceCollection AddInitializers(this IServiceCollection services, params Type[] initializers)
=> initializers == null
? services
: services.AddTransient <IStartupInitializer, StartupInitializer>(c =>
{
var startupInitializer = new StartupInitializer();
var validInitializers = initializers.Where(t => typeof(IInitializer).IsAssignableFrom(t));
foreach (var initializer in validInitializers)
{
startupInitializer.AddInitializer(c.GetService(initializer) as IInitializer);
}
return(startupInitializer);
});