public async Task Constr_EmptySourceCollectionAndAwaitingInitialization_NoElements()
{
//Arrange
ObservableCollection <A> filledCollection = new ObservableCollection <A>();
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(Task.FromResult(filledCollection));
//Act
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task Clear_FilledCollectionAndAwaitingInitializationAfterClearance_NoElements()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(Task.FromResult(filledCollection));
//Act
filledCollection.Clear();
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task RemoveAt_FilledCollectionAndAwaitingInitializationAfterRemoval_RemovedElementExcluded()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(Task.FromResult(filledCollection));
int removedIndex = 1;
//Act
filledCollection.RemoveAt(removedIndex);
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task Addition_FilledCollectionAndAwaitingInitializationAfterAddition_AddedElementIncluded()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(Task.FromResult(filledCollection));
A addedA = new A();
//Act
filledCollection.Add(addedA);
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task Replace_FilledCollectionAndAwaitingInitializationAfterReplacement_IncludesReplacedElement()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(Task.FromResult(filledCollection));
A replacingA = new A();
int replaceIndex = 1;
//Act
filledCollection[replaceIndex] = replacingA;
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task Insertion_FilledCollectionAndAwaitingInitializationBeforeInsertion_InsertedElementIncluded()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(Task.FromResult(filledCollection));
A insertedA = new A();
int insertIndex = 1;
//Act
filledCollection.Insert(insertIndex, insertedA);
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task Move_FilledCollectionAndAwaitingInitializationAfterMovement_MovedElementOnRightPosition()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(Task.FromResult(filledCollection));
int moveFromIndex = 1;
int moveToIndex = 3;
//Act
filledCollection.Move(moveFromIndex, moveToIndex);
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public void ConstrLongLastingTask_FilledCollectionAndNotAwaitingInitialization_NoElements()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
//Act
//Assert
UninitializedCheck(readOnlyList);
}
public async Task ConstrLongLastingTask_FilledCollectionAndAwaitingInitialization_ElementsCanBeIterated()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
//Act
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task DeferredLinkedToTransforming_AwaitInitialization_TransformingHasAllInitializedElements()
{
//Arrange
var filledSourceCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledSourceCollection);
}));
TransformingObservableReadOnlyList <A, A> proxy = new TransformingObservableReadOnlyList <A, A>(
readOnlyList, a => a);
//Act
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledSourceCollection, proxy);
}
public async Task AdditionLongLastingTask_FilledCollectionAndAwaitingInitializationAfterAddition_AddedElementIncluded()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
A addedA = new A();
//Act
filledCollection.Add(addedA);
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public void MoveLongLastingTask_FilledCollectionAndNotAwaitingInitializationBeforeMovement_NoElements()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
int moveFromIndex = 1;
int moveToIndex = 3;
//Act
filledCollection.Move(moveFromIndex, moveToIndex);
//Assert
UninitializedCheck(readOnlyList);
}
public void ReplaceLongLastingTask_FilledCollectionAndNOtAwaitingInitializationBeforeReplacement_NoElements()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
A replacingA = new A();
int replaceIndex = 1;
//Act
filledCollection[replaceIndex] = replacingA;
//Assert
UninitializedCheck(readOnlyList);
}
public void InsertionLongLastingTask_FilledCollectionAndNotAwaitingInitializationBeforeInsertion_NoElements()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
A insertedA = new A();
int insertIndex = 1;
//Act
filledCollection.Insert(insertIndex, insertedA);
//Assert
UninitializedCheck(readOnlyList);
}
public async Task RemoveAtLongLastingTask_FilledCollectionAndAwaitingInitializationAfterRemoval_RemovedElementExcluded()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
int removedIndex = 1;
//Act
filledCollection.RemoveAt(removedIndex);
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task MoveLongLastingTask_FilledCollectionAndAwaitingInitializationBeforeMovement_MovedElementOnRightPosition()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
int moveFromIndex = 1;
int moveToIndex = 3;
//Act
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
filledCollection.Move(moveFromIndex, moveToIndex);
//Assert
StandardCheck(filledCollection, readOnlyList);
}
public async Task ReplaceLongLastingTask_FilledCollectionAndAwaitingInitializationBeforeReplacement_IncludesReplacedElement()
{
//Arrange
ObservableCollection <A> filledCollection = FilledSourceCollection;
DeferredWrappingObservableReadOnlyList <A> readOnlyList = new DeferredWrappingObservableReadOnlyList <A>(
Task.Run(async() =>
{
await Task.Delay(100).ConfigureAwait(false);
return(filledCollection);
}));
A replacingA = new A();
int replaceIndex = 1;
//Act
await readOnlyList.InitializedCollectionAsync.ConfigureAwait(false);
filledCollection[replaceIndex] = replacingA;
//Assert
StandardCheck(filledCollection, readOnlyList);
}