public void NotifierT_TaskFaulted_NotifiesProperties()
{
var tcs = new TaskCompletionSource <object>();
var notifier = NotifyTask.Create(() => tcs.Task);
var exception = new NotImplementedException(Guid.NewGuid().ToString("N"));
var taskNotification = TestUtils.PropertyNotified(notifier, n => n.Task);
var statusNotification = TestUtils.PropertyNotified(notifier, n => n.Status);
var isCompletedNotification = TestUtils.PropertyNotified(notifier, n => n.IsCompleted);
var isSuccessfullyCompletedNotification = TestUtils.PropertyNotified(notifier, n => n.IsSuccessfullyCompleted);
var isCanceledNotification = TestUtils.PropertyNotified(notifier, n => n.IsCanceled);
var isFaultedNotification = TestUtils.PropertyNotified(notifier, n => n.IsFaulted);
var exceptionNotification = TestUtils.PropertyNotified(notifier, n => n.Exception);
var innerExceptionNotification = TestUtils.PropertyNotified(notifier, n => n.InnerException);
var errorMessageNotification = TestUtils.PropertyNotified(notifier, n => n.ErrorMessage);
var resultNotification = TestUtils.PropertyNotified(notifier, n => n.Result);
Assert.Same(tcs.Task, notifier.Task);
Assert.False(notifier.TaskCompleted.IsCompleted);
Assert.Equal(tcs.Task.Status, notifier.Status);
Assert.False(notifier.IsCompleted);
Assert.True(notifier.IsNotCompleted);
Assert.False(notifier.IsSuccessfullyCompleted);
Assert.Null(notifier.Result);
Assert.False(notifier.IsCanceled);
Assert.False(notifier.IsFaulted);
Assert.Null(notifier.Exception);
Assert.Null(notifier.InnerException);
Assert.Null(notifier.ErrorMessage);
tcs.SetException(exception);
Assert.Same(tcs.Task, notifier.Task);
Assert.True(notifier.TaskCompleted.IsCompleted && !notifier.TaskCompleted.IsCanceled && !notifier.TaskCompleted.IsFaulted);
Assert.Equal(tcs.Task.Status, notifier.Status);
Assert.True(notifier.IsCompleted);
Assert.False(notifier.IsNotCompleted);
Assert.False(notifier.IsSuccessfullyCompleted);
Assert.Null(notifier.Result);
Assert.False(notifier.IsCanceled);
Assert.True(notifier.IsFaulted);
Assert.NotNull(notifier.Exception);
Assert.Same(exception, notifier.InnerException);
Assert.Equal(exception.Message, notifier.ErrorMessage);
Assert.False(taskNotification());
Assert.True(statusNotification());
Assert.True(isCompletedNotification());
Assert.False(isSuccessfullyCompletedNotification());
Assert.False(isCanceledNotification());
Assert.True(isFaultedNotification());
Assert.True(exceptionNotification());
Assert.True(innerExceptionNotification());
Assert.True(errorMessageNotification());
Assert.False(resultNotification());
}
public void StartExecution_NotifiesPropertyChanges()
{
var signal = new TaskCompletionSource <object>();
var command = new CustomAsyncCommand(_ => signal.Task, _ => true);
var isExecutingNotification = TestUtils.PropertyNotified(command, n => n.IsExecuting);
var executionNotification = TestUtils.PropertyNotified(command, n => n.Execution);
((ICommand)command).Execute(null);
Assert.True(isExecutingNotification());
Assert.True(executionNotification());
signal.SetResult(null);
}
public void Notifier_TaskCanceled_NotifiesProperties()
{
var tcs = new TaskCompletionSource <object>();
var notifier = NotifyTask.Create(() => (Task)tcs.Task);
var taskNotification = TestUtils.PropertyNotified(notifier, n => n.Task);
var statusNotification = TestUtils.PropertyNotified(notifier, n => n.Status);
var isCompletedNotification = TestUtils.PropertyNotified(notifier, n => n.IsCompleted);
var isSuccessfullyCompletedNotification = TestUtils.PropertyNotified(notifier, n => n.IsSuccessfullyCompleted);
var isCanceledNotification = TestUtils.PropertyNotified(notifier, n => n.IsCanceled);
var isFaultedNotification = TestUtils.PropertyNotified(notifier, n => n.IsFaulted);
var exceptionNotification = TestUtils.PropertyNotified(notifier, n => n.Exception);
var innerExceptionNotification = TestUtils.PropertyNotified(notifier, n => n.InnerException);
var errorMessageNotification = TestUtils.PropertyNotified(notifier, n => n.ErrorMessage);
Assert.Same(tcs.Task, notifier.Task);
Assert.False(notifier.TaskCompleted.IsCompleted);
Assert.Equal(tcs.Task.Status, notifier.Status);
Assert.False(notifier.IsCompleted);
Assert.True(notifier.IsNotCompleted);
Assert.False(notifier.IsSuccessfullyCompleted);
Assert.False(notifier.IsCanceled);
Assert.False(notifier.IsFaulted);
Assert.Null(notifier.Exception);
Assert.Null(notifier.InnerException);
Assert.Null(notifier.ErrorMessage);
tcs.SetCanceled();
Assert.Same(tcs.Task, notifier.Task);
Assert.True(notifier.TaskCompleted.IsCompleted && !notifier.TaskCompleted.IsCanceled && !notifier.TaskCompleted.IsFaulted);
Assert.Equal(tcs.Task.Status, notifier.Status);
Assert.True(notifier.IsCompleted);
Assert.False(notifier.IsNotCompleted);
Assert.False(notifier.IsSuccessfullyCompleted);
Assert.True(notifier.IsCanceled);
Assert.False(notifier.IsFaulted);
Assert.Null(notifier.Exception);
Assert.Null(notifier.InnerException);
Assert.Null(notifier.ErrorMessage);
Assert.False(taskNotification());
Assert.True(statusNotification());
Assert.True(isCompletedNotification());
Assert.False(isSuccessfullyCompletedNotification());
Assert.True(isCanceledNotification());
Assert.False(isFaultedNotification());
Assert.False(exceptionNotification());
Assert.False(innerExceptionNotification());
Assert.False(errorMessageNotification());
}
public void NotifierT_NonDefaultResult_TaskCompletesSuccessfully_UpdatesResult()
{
var tcs = new TaskCompletionSource <object>();
var defaultResult = new object();
var notifier = NotifyTask.Create(() => tcs.Task, defaultResult);
var result = new object();
var resultNotification = TestUtils.PropertyNotified(notifier, n => n.Result);
Assert.Same(defaultResult, notifier.Result);
tcs.SetResult(result);
Assert.Same(result, notifier.Result);
Assert.True(resultNotification());
}
public void StartExecution_NotifiesPropertyChanges()
{
var signal = new TaskCompletionSource <object>();
var command = new AsyncCommand(_ => signal.Task);
var isExecutingNotification = TestUtils.PropertyNotified(command, n => n.IsExecuting);
var executionNotification = TestUtils.PropertyNotified(command, n => n.Execution);
var sawCanExecuteChanged = false;
((ICommand)command).CanExecuteChanged += (_, __) => { sawCanExecuteChanged = true; };
((ICommand)command).Execute(null);
Assert.True(isExecutingNotification());
Assert.True(executionNotification());
Assert.True(sawCanExecuteChanged);
signal.SetResult(null);
}
