public void MobileServiceCollectionCanContainsAndNotNotifies()
{
// Get the Books table
MobileServiceTableQueryMock <Book> query = new MobileServiceTableQueryMock <Book>();
query.EnumerableAsyncThrowsException = true;
MobileServiceCollection <Book, Book> collection = new MobileServiceCollection <Book, Book>(query);
List <string> properties = new List <string>();
List <string> expectedProperties = new List <string>()
{
};
List <NotifyCollectionChangedAction> actions = new List <NotifyCollectionChangedAction>();
List <NotifyCollectionChangedAction> expectedActions = new List <NotifyCollectionChangedAction>()
{
};
Book book = new Book();
collection.Add(book);
((INotifyPropertyChanged)collection).PropertyChanged += (s, e) => properties.Add(e.PropertyName);
collection.CollectionChanged += (s, e) => actions.Add(e.Action);
Assert.Contains(book, collection);
Assert.Equal(expectedProperties, properties);
Assert.Equal(expectedActions, actions);
}
public async Task MobileServiceCollectionHasMoreItemsShouldBeFalseAfterRetrievingDataWhenNoPaging()
{
// Get the Books table
MobileServiceTableQueryMock <Book> query = new MobileServiceTableQueryMock <Book>();
MobileServiceCollection <Book> collection = new MobileServiceCollection <Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
List <string> properties = new List <string>();
List <string> expectedProperties = new List <string>()
{
"HasMoreItems", "Count", "Item[]", "Count", "Item[]", "TotalCount"
};
List <NotifyCollectionChangedAction> actions = new List <NotifyCollectionChangedAction>();
List <NotifyCollectionChangedAction> expectedActions = new List <NotifyCollectionChangedAction>()
{
NotifyCollectionChangedAction.Add, NotifyCollectionChangedAction.Add
};
((INotifyPropertyChanged)collection).PropertyChanged += (s, e) => properties.Add(e.PropertyName);
collection.CollectionChanged += (s, e) => actions.Add(e.Action);
int result = await collection.LoadMoreItemsAsync(tokenSource.Token);
Assert.False(collection.HasMoreItems);
Assert.Equal(expectedProperties, properties);
Assert.Equal(expectedActions, actions);
}
public async Task MobileServiceCollectionMultipleLoadItemsAsyncShouldThrow()
{
await Assert.ThrowsAsync <InvalidOperationException>(async() =>
{
MobileServiceTableQueryMock <Book> query = new MobileServiceTableQueryMock <Book>();
MobileServiceCollection <Book> collection = new MobileServiceCollection <Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
await Task.WhenAll(collection.LoadMoreItemsAsync(tokenSource.Token), collection.LoadMoreItemsAsync(tokenSource.Token));
});
}
public void MobileServiceCollectionHasMoreItemsInitiallyTrue()
{
// Get the Books table
MobileServiceTableQueryMock <Book> query = new MobileServiceTableQueryMock <Book>();
query.EnumerableAsyncThrowsException = true;
MobileServiceCollection <Book> collection = new MobileServiceCollection <Book>(query);
Assert.True(collection.HasMoreItems);
}
public async Task MobileServiceCollectionLoadMoreItemsAsyncFiresLoadingCompleteEventAfterReadingData()
{
// Get the Books table
MobileServiceTableQueryMock <Book> query = new MobileServiceTableQueryMock <Book>();
MobileServiceCollection <Book, Book> collection = new MobileServiceCollection <Book, Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
int loadedEventArgsManyItemsLoaded = 0;
collection.LoadingComplete += (s, e) => loadedEventArgsManyItemsLoaded = e.TotalItemsLoaded;
_ = await collection.LoadMoreItemsAsync(tokenSource.Token);
Assert.Equal(2, loadedEventArgsManyItemsLoaded);
}
public async Task MobileServiceCollectionLoadMoreItemsAsyncFiresLoadingItemsEventBeforeReadingData()
{
// Get the Books table
MobileServiceTableQueryMock <Book> query = new MobileServiceTableQueryMock <Book>();
MobileServiceCollection <Book, Book> collection = new MobileServiceCollection <Book, Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
bool firedLoading = false;
collection.LoadingItems += (s, e) => firedLoading = true;
_ = await collection.LoadMoreItemsAsync(tokenSource.Token);
Assert.True(firedLoading);
}
public async Task MobileServiceCollectionMultipleLoadItemsAsyncShouldThrow()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
MobileServiceCollection<Book, Book> collection = new MobileServiceCollection<Book, Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
Exception ex = null;
try
{
await TaskEx.WhenAll(collection.LoadMoreItemsAsync(tokenSource.Token), collection.LoadMoreItemsAsync(tokenSource.Token));
}
catch (InvalidOperationException e)
{
ex = e;
}
Assert.IsNotNull(ex);
}
public async Task MobileServiceCollectionLoadMoreItemsAsyncExceptionsCanBeHandled()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
query.EnumerableAsyncThrowsException = true;
MobileServiceIncrementalLoadingCollection<Book, Book> collection = new MobileServiceIncrementalLoadingCollection<Book, Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
Exception ex = null;
try
{
await ((ISupportIncrementalLoading)collection).LoadMoreItemsAsync(10);
}
catch (Exception e)
{
ex = e;
}
Assert.IsNotNull(ex);
}
public void MobileServiceCollectionCanClearAndNotifies()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
query.EnumerableAsyncThrowsException = true;
MobileServiceCollection<Book, Book> collection = new MobileServiceCollection<Book, Book>(query);
List<string> properties = new List<string>();
List<string> expectedProperties = new List<string>() { "Count", "Item[]" };
List<NotifyCollectionChangedAction> actions = new List<NotifyCollectionChangedAction>();
List<NotifyCollectionChangedAction> expectedActions = new List<NotifyCollectionChangedAction>() { NotifyCollectionChangedAction.Reset };
Book book = new Book();
collection.Add(book);
((INotifyPropertyChanged)collection).PropertyChanged += (s, e) => properties.Add(e.PropertyName);
collection.CollectionChanged += (s, e) => actions.Add(e.Action);
collection.Clear();
Assert.AreEqual(0, collection.Count);
Assert.IsTrue(properties.SequenceEqual(expectedProperties));
Assert.IsTrue(actions.SequenceEqual(expectedActions));
}
public async Task MobileServiceCollectionHasMoreItemsShouldBeFalseAfterRetrievingDataWhenNoPaging()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
MobileServiceCollection<Book, Book> collection = new MobileServiceCollection<Book, Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
List<string> properties = new List<string>();
List<string> expectedProperties = new List<string>() { "HasMoreItems", "Count", "Item[]", "Count", "Item[]", "TotalCount" };
List<NotifyCollectionChangedAction> actions = new List<NotifyCollectionChangedAction>();
List<NotifyCollectionChangedAction> expectedActions = new List<NotifyCollectionChangedAction>() { NotifyCollectionChangedAction.Add, NotifyCollectionChangedAction.Add };
((INotifyPropertyChanged)collection).PropertyChanged += (s, e) => properties.Add(e.PropertyName);
collection.CollectionChanged += (s, e) => actions.Add(e.Action);
int result = await collection.LoadMoreItemsAsync(tokenSource.Token);
Assert.IsFalse(collection.HasMoreItems);
Assert.IsTrue(properties.SequenceEqual(expectedProperties));
Assert.IsTrue(actions.SequenceEqual(expectedActions));
}
public void MobileServiceCollectionHasMoreItemsInitiallyTrue()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
query.EnumerableAsyncThrowsException = true;
MobileServiceCollection<Book, Book> collection = new MobileServiceCollection<Book, Book>(query);
Assert.IsTrue(collection.HasMoreItems);
}
public void MobileServiceCollectionCanCopyToAndNotNotifies()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
query.EnumerableAsyncThrowsException = true;
MobileServiceCollection<Book, Book> collection = new MobileServiceCollection<Book, Book>(query);
List<string> properties = new List<string>();
List<string> expectedProperties = new List<string>() { };
List<NotifyCollectionChangedAction> actions = new List<NotifyCollectionChangedAction>();
List<NotifyCollectionChangedAction> expectedActions = new List<NotifyCollectionChangedAction>() { };
Book book = new Book();
collection.Add(book);
Book[] books = new Book[1];
((INotifyPropertyChanged)collection).PropertyChanged += (s, e) => properties.Add(e.PropertyName);
collection.CollectionChanged += (s, e) => actions.Add(e.Action);
collection.CopyTo(books, 0);
Assert.AreEqual(1, collection.Count);
Assert.AreEqual(1, books.Count());
Assert.AreEqual(collection[0], books[0]);
Assert.IsTrue(properties.SequenceEqual(expectedProperties));
Assert.IsTrue(actions.SequenceEqual(expectedActions));
}
public async Task MobileServiceCollectionLoadMoreItemsAsyncFiresLoadingCompleteEventAfterReadingData()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
MobileServiceCollection<Book, Book> collection = new MobileServiceCollection<Book, Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
Exception ex = null;
int loadedEventArgsManyItemsLoaded = 0;
collection.LoadingComplete += (s, e) => loadedEventArgsManyItemsLoaded = e.TotalItemsLoaded;
try
{
int result = await collection.LoadMoreItemsAsync(tokenSource.Token);
}
catch (Exception e)
{
ex = e;
}
Assert.AreEqual(loadedEventArgsManyItemsLoaded, 2);
Assert.IsNull(ex);
}
public async Task MobileServiceCollectionLoadMoreItemsAsyncFiresLoadingItemsEventBeforeReadingData()
{
// Get the Books table
MobileServiceTableQueryMock<Book> query = new MobileServiceTableQueryMock<Book>();
MobileServiceCollection<Book, Book> collection = new MobileServiceCollection<Book, Book>(query);
CancellationTokenSource tokenSource = new CancellationTokenSource();
Exception ex = null;
bool firedLoading = false;
collection.LoadingItems += (s, e) => firedLoading = true;
try
{
int result = await collection.LoadMoreItemsAsync(tokenSource.Token);
}
catch (Exception e)
{
ex = e;
}
Assert.IsTrue(firedLoading);
Assert.IsNull(ex);
}