public Scope(IServiceCollection services, PerfTimer timer = null)
{
if (timer == null)
{
Bootstrapping = new PerfTimer();
Bootstrapping.Start("Bootstrapping Container");
}
else
{
Bootstrapping = timer;
Bootstrapping.MarkStart("Lamar Scope Creation");
}
Root = this;
Bootstrapping.MarkStart("Build ServiceGraph");
ServiceGraph = new ServiceGraph(services, this);
Bootstrapping.MarkFinished("Build ServiceGraph");
ServiceGraph.Initialize(Bootstrapping);
if (timer == null)
{
Bootstrapping.Stop();
}
else
{
Bootstrapping.MarkFinished("Lamar Scope Creation");
}
}
public void find_dependencies_deep()
{
var theServices = new ServiceRegistry();
theServices.AddTransient <IWidget, AWidget>();
theServices.AddTransient <Rule, BlueRule>();
theServices.AddTransient <OtherGuy>();
theServices.AddTransient <GuyWithWidgetAndRule>();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <GuyWithGuys>();
instance.CreatePlan(theGraph);
var expected = new[]
{
typeof(AWidget),
typeof(BlueRule),
typeof(OtherGuy),
typeof(GuyWithWidgetAndRule)
};
instance.Dependencies.OfType <ConstructorInstance>()
.Select(x => x.ImplementationType)
.ShouldBe(expected, true);
}
public void finds_the_single_default()
{
theServices.AddTransient <IWidget, AWidget>();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
theGraph.FindDefault(typeof(IWidget))
.ShouldBeOfType <ConstructorInstance>()
.ImplementationType.ShouldBe(typeof(AWidget));
}
public void happy_path_can_find_ctor_no_error_messages()
{
var theServices = new ServiceRegistry();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <NoArgGuy>();
instance.CreatePlan(theGraph);
instance.ErrorMessages.Any().ShouldBeFalse();
}
public void add_error_message_if_no_public_constructors()
{
var theServices = new ServiceRegistry();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <GuyWithNoPublicConstructors>();
instance.CreatePlan(theGraph);
instance.Constructor.ShouldBeNull();
instance.ErrorMessages.ShouldContain(ConstructorInstance.NoPublicConstructors);
}
public void will_choose_a_no_arg_ctor_if_that_is_all_there_is()
{
var theServices = new ServiceRegistry();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <NoArgGuy>();
instance.CreatePlan(theGraph);
instance.Constructor.ShouldNotBeNull();
instance.Constructor.GetParameters().Any().ShouldBeFalse();
}
public void finds_all()
{
theServices.AddTransient <IWidget, AWidget>();
theServices.AddSingleton(this);
theServices.AddTransient <IThing, Thing>();
theServices.AddTransient <IWidget, MoneyWidget>();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
theGraph.FindAll(typeof(IWidget))
.OfType <ConstructorInstance>()
.Select(x => x.ImplementationType)
.ShouldHaveTheSameElementsAs(typeof(AWidget), typeof(MoneyWidget));
}
public void add_error_message_if_no_public_ctor_can_be_filled()
{
var theServices = new ServiceRegistry();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <GuyThatUsesIWidget>();
instance.CreatePlan(theGraph);
instance.Constructor.ShouldBeNull();
instance.ErrorMessages.Any(x => x.Contains(ConstructorInstance.NoPublicConstructorCanBeFilled))
.ShouldBeTrue();
}
public void use_default_constructor_attribute_selection()
{
var theServices = new ServiceRegistry();
theServices.AddSingleton <IWidget, AWidget>();
theServices.AddTransient <Rule, BlueRule>();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <GuyWithMultipleConstructors>();
instance.DetermineConstructor(theGraph, out string message)
.GetParameters().Single().ParameterType.ShouldBe(typeof(IWidget));
}
public void requires_service_provider_with_dependencies_positive()
{
var theServices = new ServiceRegistry();
theServices.AddSingleton <IWidget, AWidget>();
theServices.AddTransient <Rule>(x => new BlueRule());
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <GuyWithWidgetAndRule>();
instance.CreatePlan(theGraph);
instance.RequiresServiceProvider.ShouldBeTrue();
}
public void choose_base_type_of_resolver(ServiceLifetime lifetime, Type baseType)
{
var theServices = new ServiceRegistry();
theServices.AddSingleton <IWidget, AWidget>();
theServices.AddTransient <Rule>(x => new BlueRule());
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <GuyWithWidgetAndRule>();
instance.Lifetime = lifetime;
instance.CreatePlan(theGraph);
instance.ResolverBaseType.ShouldBe(baseType);
}
public void select_greediest_constructor_that_can_be_filled()
{
var theServices = new ServiceRegistry();
theServices.AddTransient <IWidget, AWidget>();
theServices.AddSingleton(this);
theServices.AddTransient <IWidget, MoneyWidget>();
theServices.AddTransient <IThing, Thing>();
var theGraph = new ServiceGraph(theServices, Scope.Empty());
theGraph.Initialize();
var instance = ConstructorInstance.For <DeepConstructorGuy>();
instance.CreatePlan(theGraph);
instance.Constructor.GetParameters().Select(x => x.ParameterType)
.ShouldHaveTheSameElementsAs(typeof(IWidget), typeof(IThing));
}