public void Can_Resolve_Scoped_Type()
{
var services = new ServiceCollection();
services.AddNamed <AnimalService>(names =>
{
names.AddScoped("A");
names.AddScoped <DisposableTigerService>("B");
});
var sp = services.BuildServiceProvider();
var resolver = sp.GetRequiredService <NamedServiceResolver <AnimalService> >();
var instanceA = resolver["A"];
var instanceB = resolver["B"];
Assert.NotSame(instanceA, instanceB);
Assert.IsType <AnimalService>(instanceA);
Assert.IsType <DisposableTigerService>(instanceB);
// multiple resolves from same scope yields same instances.
Assert.Same(instanceA, resolver["A"]);
Assert.Same(instanceB, resolver["B"]);
DisposableTigerService checkDisposed = null;
using (var newScope = sp.CreateScope())
{
// initial resolve from new scope yields new instance
var scopedResolver = newScope.ServiceProvider.GetRequiredService <NamedServiceResolver <AnimalService> >();
var newScopeInstanceA = scopedResolver["A"];
var newScopeInstanceB = scopedResolver["B"];
Assert.NotSame(newScopeInstanceA, instanceA);
Assert.NotSame(newScopeInstanceB, instanceB);
Assert.NotSame(newScopeInstanceA, newScopeInstanceB);
// multiple resolves from same scope yields same instances.
Assert.Same(newScopeInstanceA, scopedResolver["A"]);
Assert.Same(newScopeInstanceB, scopedResolver["B"]);
Assert.IsType <DisposableTigerService>(newScopeInstanceB);
checkDisposed = (DisposableTigerService)newScopeInstanceB;
}
Assert.True(checkDisposed.WasDisposed);
checkDisposed = (DisposableTigerService)instanceB;
Assert.False(checkDisposed.WasDisposed);
sp.Dispose();
Assert.True(checkDisposed.WasDisposed);
}
public void Can_Dispose_Of_SingletonInstances()
{
var disposable = new DisposableTigerService() { SomeProperty = "Should be disposed." };
var disposableShouldNotBeDisposed = new DisposableTigerService() { SomeProperty = "Should NOT be disposed." };
using (var namedRegistrations = new NamedServiceRegistry<AnimalService>(GetDefaultServiceProvider()))
{
namedRegistrations.AddSingleton("A", disposableShouldNotBeDisposed);
namedRegistrations.AddSingleton("B", disposable, registrationOwnsInstance: true); // This param defaults to false, must specifiy true if you want instance to be disposed by service provider dispose().
}
Assert.False(disposableShouldNotBeDisposed.WasDisposed);
Assert.True(disposable.WasDisposed);
}
public void Owned_Singleton_Instances_Are_Disposed_When_ServiceProvider_Is_Disposed()
{
var disposable = new DisposableTigerService() { SomeProperty = "B" };
var services = new ServiceCollection();
services.AddNamed<AnimalService>(registry =>
{
registry.AddSingleton("A", new AnimalService() { SomeProperty = "A" });
registry.AddSingleton("B", disposable, registrationOwnsInstance: true);
});
var sp = services.BuildServiceProvider();
// before the container will dispose the registry (and thus the instances registered with the registry)
// it must have first resolved an instance of it atleast once.
var resolved = sp.GetRequiredService<NamedServiceRegistry<AnimalService>>();
sp.Dispose();
Assert.True(disposable.WasDisposed);
}