public void DoubleDisposeTest()
{
var disposalScope = new DisposalScope();
var disposableService = new DisposableService();
var eventFired = false;
disposableService.Disposing += (sender, args) => eventFired = true;
disposalScope.AddDisposable(disposableService);
disposalScope.Dispose();
Assert.True(eventFired);
eventFired = false;
disposalScope.Dispose();
Assert.False(eventFired);
}
public void DoubleDisposeTest()
{
DisposalScope disposalScope = new DisposalScope();
DisposableService disposableService = new DisposableService();
bool eventFired = false;
disposableService.Disposing += (sender, args) => eventFired = true;
disposalScope.AddDisposable(disposableService);
disposalScope.Dispose();
Assert.True(eventFired);
eventFired = false;
disposalScope.Dispose();
Assert.False(eventFired);
}
public void DisposalScope_ThrowExceptionDuringCleanUp()
{
var disposalScope = new DisposalScope();
var disposableService = new DisposableService();
var eventFired = false;
disposableService.Disposing += (sender, args) => eventFired = true;
disposalScope.AddDisposable(disposableService, disposed => { throw new Exception(); });
Assert.ThrowsAny <AggregateException>(() => disposalScope.Dispose());
}
public void DisposableScope_WithNullCleanup_Threading_Test()
{
DisposableItem.CreateCount = 0;
DisposableItem.DisposeCount = 0;
var scope = new DisposalScope();
var syncEvent = new ManualResetEvent(false);
var task1 = Task.Run(() => AddToScopeWithCleanup(scope, syncEvent, null));
var task2 = Task.Run(() => AddToScopeWithCleanup(scope, syncEvent, null));
syncEvent.Set();
Task.WaitAll(task1, task2);
scope.Dispose();
Assert.Equal(DisposableItem.CreateCount, DisposableItem.DisposeCount);
}
public void CleanUpDelegateTest()
{
DisposalScope disposalScope = new DisposalScope();
DisposableService disposableService = new DisposableService();
bool eventFired = false;
bool cleanUpCalled = false;
disposableService.Disposing += (sender, args) => eventFired = true;
disposalScope.AddDisposable(disposableService,
disposed =>
{
Assert.True(ReferenceEquals(disposableService, disposed));
cleanUpCalled = true;
});
disposalScope.Dispose();
Assert.True(eventFired);
Assert.True(cleanUpCalled);
}
public void CleanUpDelegateTest()
{
var disposalScope = new DisposalScope();
var disposableService = new DisposableService();
var eventFired = false;
var cleanUpCalled = false;
disposableService.Disposing += (sender, args) => eventFired = true;
disposalScope.AddDisposable(disposableService,
disposed =>
{
Assert.True(ReferenceEquals(disposableService, disposed));
cleanUpCalled = true;
});
disposalScope.Dispose();
Assert.True(eventFired);
Assert.True(cleanUpCalled);
}
public void ThrowExceptionDuringCleanUp()
{
DisposalScope disposalScope = new DisposalScope();
DisposableService disposableService = new DisposableService();
bool eventFired = false;
disposableService.Disposing += (sender, args) => eventFired = true;
disposalScope.AddDisposable(disposableService, disposed => { throw new Exception(); });
disposalScope.Dispose();
Assert.True(eventFired);
}
/// <summary>
/// Locate object
/// </summary>
/// <param name="creationDelegate"></param>
/// <param name="injectionScope"></param>
/// <param name="injectionContext"></param>
/// <param name="exportStrategy"></param>
/// <returns></returns>
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope injectionScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
object scopeName = valueDelegate(injectionScope, injectionContext);
Tuple<object, IDisposalScope> trackedObject;
if (!scopedObjects.TryGetValue(scopeName, out trackedObject))
{
IDisposalScope disposalScope = injectionContext.DisposalScope;
IInjectionScope requestingScope = injectionContext.RequestingScope;
IDisposalScope newDisposalScope = new DisposalScope();
injectionContext.DisposalScope = newDisposalScope;
injectionContext.RequestingScope = exportStrategy.OwningScope;
object locatedObject = creationDelegate(injectionScope, injectionContext);
injectionContext.DisposalScope = disposalScope;
injectionContext.RequestingScope = requestingScope;
if (locatedObject != null)
{
trackedObject = new Tuple<object, IDisposalScope>(locatedObject, newDisposalScope);
scopedObjects[scopeName] = trackedObject;
INotifyWhenDisposed notifyWhenDisposed = scopeName as INotifyWhenDisposed;
if (notifyWhenDisposed != null)
{
notifyWhenDisposed.Disposed += (sender, args) =>
{
scopedObjects.Remove(scopeName);
newDisposalScope.Dispose();
};
}
return locatedObject;
}
}
else
{
return trackedObject.Item1;
}
return null;
}