public void When_a_type_cannot_be_resolved_via_GetService_it_returns_null()
{
var container = new PocketContainer() as IServiceProvider;
var resolved = container.GetService(typeof(string));
resolved.Should().BeNull();
}
public void Resolve_implements_IServiceProvider_GetService()
{
var container = new PocketContainer()
.Register(_ => "hello")
as IServiceProvider;
var resolved = container.GetService(typeof(string));
resolved.Should().Be("hello");
}
public void AddSingleton_behaves_as_expected()
{
var services = new ServiceCollection()
.AddSingleton <IEnumerable <string> >(new List <string>());
var container = new PocketContainer()
.AsServiceProvider(services);
var fromContainer = container.GetService <IEnumerable <string> >();
var fromServices = services.BuildServiceProvider()
.GetService <IEnumerable <string> >();
fromContainer.Should().BeSameAs(fromServices);
}
public void AddFactory_behaves_as_expected()
{
var services = new ServiceCollection()
.AddTransient <IAmAnInterface>(s => new HasDefaultCtor());
var container = new PocketContainer()
.AsServiceProvider(services);
var fromContainer = container.GetService <IAmAnInterface>();
var fromServices = services.BuildServiceProvider()
.GetService <IAmAnInterface>();
fromContainer.Should().BeOfType <HasDefaultCtor>();
fromContainer.Should().NotBeSameAs(fromServices);
}
public void When_multiple_transients_have_been_registered_an_IEnumerable_can_be_resolved_which_contains_them_all()
{
var services = new ServiceCollection()
.AddTransient <IAmAnInterface, HasDefaultCtor>()
.AddTransient <IAmAnInterface, AlsoHasDefaultCtor>();
var container = new PocketContainer()
.AccumulateRegistrations()
.AsServiceProvider(services);
var fromServices = services.BuildServiceProvider()
.GetService <IEnumerable <IAmAnInterface> >();
var fromContainer = container.GetService <IEnumerable <IAmAnInterface> >();
fromContainer.Count().Should().Be(2);
fromContainer.Should().Contain(o => o is HasDefaultCtor);
fromContainer.Should().Contain(o => o is AlsoHasDefaultCtor);
}
public void Transient_instances_resolved_from_the_root_are_disposed_when_the_container_is_disposed()
{
var wasDisposed = false;
var services = new ServiceCollection()
.AddTransient(_ => Disposable.Create(() =>
{
wasDisposed = true;
}));
var serviceProvider = new PocketContainer()
.AsServiceProvider(services);
serviceProvider.GetService <IDisposable>();
((IDisposable)serviceProvider).Dispose();
wasDisposed.Should().BeTrue();
}
public void Transient_instances_resolved_from_outside_a_scope_are_disposed_when_the_scope_is_disposed()
{
var wasDisposed = false;
var services = new ServiceCollection()
.AddTransient(_ => Disposable.Create(() =>
{
wasDisposed = true;
}));
var serviceProvider = new PocketContainer()
.AsServiceProvider(services);
var scope = serviceProvider.CreateScope();
serviceProvider.GetService <IDisposable>();
scope.Dispose();
wasDisposed.Should().BeFalse();
}