public void WaitTest()
{
asyncTestCommand = new AsyncCommand <int>((a) => AsyncExecuteMethod(a));
executingAsyncMethod = true;
asyncTestCommand.Execute(100);
asyncTestCommand.Wait();
Assert.AreEqual(false, executingAsyncMethod);
asyncTestCommand.Wait();
Assert.AreEqual(false, executingAsyncMethod);
EnqueueTestComplete();
}
void AllowMultipleExecutionTestCore(Func <int, Task> a)
{
asyncTestCommand = new AsyncCommand <int>(a, o => true)
{
AllowMultipleExecution = true
};
asyncTestCommand.Execute(100);
Assert.IsTrue(asyncTestCommand.IsExecuting);
Assert.IsTrue(asyncTestCommand.CanExecute(100));
asyncTestCommand.Cancel();
Assert.IsTrue(asyncTestCommand.IsExecuting);
Assert.IsTrue(asyncTestCommand.CanExecute(100));
asyncTestCommand.Wait(latencyTime);
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsTrue(asyncTestCommand.CanExecute(100));
asyncTestCommand = new AsyncCommand <int>(a, o => false)
{
AllowMultipleExecution = true
};
asyncTestCommand.Execute(100);
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsFalse(asyncTestCommand.CanExecute(100));
}
public void WaitTest()
{
asyncTestCommand = new AsyncCommand <int>((a) => AsyncExecuteMethod(a));
int isExecutingChangedCount = 0;
((INotifyPropertyChanged)asyncTestCommand).PropertyChanged += (s, e) =>
e.If(x => x.PropertyName == "IsExecuting").Do(x => isExecutingChangedCount++);
asyncTestCommand.Execute(100);
Assert.AreEqual(1, isExecutingChangedCount);
Assert.AreEqual(true, asyncTestCommand.IsExecuting);
asyncTestCommand.Wait();
Assert.AreEqual(2, isExecutingChangedCount);
Assert.AreEqual(false, asyncTestCommand.IsExecuting);
asyncTestCommand.Wait();
Assert.AreEqual(2, isExecutingChangedCount);
Assert.AreEqual(false, asyncTestCommand.IsExecuting);
}
public void CancelAndWaitTest2()
{
asyncTestCommand = new AsyncCommand <int>(CancelInsideCommandAndWaitMethod);
executingAsyncMethod = true;
asyncTestCommand.Execute(100);
asyncTestCommand.Wait();
Assert.AreEqual(false, executingAsyncMethod);
EnqueueTestComplete();
}
public void CancelAndWaitTest()
{
asyncTestCommand = new AsyncCommand <int>(CancelInsideCommandAndWaitMethod);
int isExecutingChangedCount = 0;
((INotifyPropertyChanged)asyncTestCommand).PropertyChanged += (s, e) =>
e.If(x => x.PropertyName == "IsExecuting").Do(x => isExecutingChangedCount++);
asyncTestCommand.Execute(100);
Assert.AreEqual(1, isExecutingChangedCount);
Assert.AreEqual(true, asyncTestCommand.IsExecuting);
asyncTestCommand.CancellationTokenSource.Cancel();
Assert.AreEqual(true, asyncTestCommand.IsExecuting);
asyncTestCommand.Wait();
Assert.AreEqual(2, isExecutingChangedCount);
Assert.AreEqual(false, asyncTestCommand.IsExecuting);
}
public void AsyncIsExecuting()
{
asyncTestCommand = new AsyncCommand <int>(a => AsyncExecuteMethod(a));
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsTrue(asyncTestCommand.CanExecute(100));
executingAsyncMethod = true;
asyncTestCommand.Execute(100);
Assert.IsTrue(asyncTestCommand.IsExecuting);
Assert.IsFalse(asyncTestCommand.CanExecute(100));
asyncTestCommand.Wait(latencyTime);
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsTrue(asyncTestCommand.CanExecute(100));
Assert.IsFalse(executingAsyncMethod);
}
void AsyncCancelTestCore(Func <int, Task> a)
{
asyncTestCommand = new AsyncCommand <int>(a);
Assert.IsNull(asyncTestCommand.CancellationTokenSource);
asyncTestCommand.Execute(100);
Assert.IsNotNull(asyncTestCommand.CancellationTokenSource);
Assert.IsTrue(asyncTestCommand.IsExecuting);
asyncTestCommand.Cancel();
Assert.IsTrue(asyncTestCommand.ShouldCancel);
Assert.IsTrue(asyncTestCommand.IsCancellationRequested);
Assert.IsTrue(asyncTestCommand.IsExecuting);
asyncTestCommand.Wait(latencyTime);
Assert.IsTrue(asyncTestCommand.executeTask.IsCompleted);
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsFalse(asyncTestCommand.ShouldCancel);
Assert.IsTrue(asyncTestCommand.IsCancellationRequested);
}
public void ExecuteAsyncTest()
{
asyncTestCommand = new AsyncCommand <int>((a) => AsyncExecuteMethod3(a));
int isExecutingChangedCount = 0;
((INotifyPropertyChanged)asyncTestCommand).PropertyChanged += (s, e) =>
e.If(x => x.PropertyName == "IsExecuting").Do(x => isExecutingChangedCount++);
bool completed = false;
asyncTestCommand.ExecuteAsync(100).ContinueWith(x => {
Assert.AreEqual(2, isExecutingChangedCount);
Assert.AreEqual(false, asyncTestCommand.IsExecuting);
completed = true;
});
Assert.Throws <NotSupportedException>(() => asyncTestCommand.Wait(),
"The Wait method is not supported when you use the ExecuteAsync method. Use async/await syntax instead.");
WaitCondition(() => completed);
Assert.AreEqual(true, completed);
}
public void IsExecutingPropertyChangedTest()
{
asyncTestCommand = new AsyncCommand <int>((a) => AsyncExecuteMethod(a));
bool isExecutingChanged = false;
((INotifyPropertyChanged)asyncTestCommand).PropertyChanged += (s, e) => {
if (e.PropertyName == "IsExecuting")
{
isExecutingChanged = true;
}
};
asyncTestCommand.Execute(100);
Assert.IsTrue(isExecutingChanged);
isExecutingChanged = false;
asyncTestCommand.Wait(latencyTime);
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsTrue(isExecutingChanged);
}
void AsyncCanExecuteTestCore(Func <int, Task> a)
{
asyncTestCommand = new AsyncCommand <int>(a, o => true);
asyncTestCommand.Execute(100);
Assert.IsTrue(asyncTestCommand.IsExecuting);
Assert.IsFalse(asyncTestCommand.CanExecute(100));
asyncTestCommand.Cancel();
Assert.IsTrue(asyncTestCommand.IsExecuting);
Assert.IsTrue(asyncTestCommand.ShouldCancel);
Assert.IsTrue(asyncTestCommand.IsCancellationRequested);
asyncTestCommand.Wait(latencyTime);
Assert.IsTrue(asyncTestCommand.executeTask.IsCompleted);
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsTrue(asyncTestCommand.CanExecute(100));
asyncTestCommand = new AsyncCommand <int>(a, o => false);
asyncTestCommand.Execute(100);
Assert.IsFalse(asyncTestCommand.IsExecuting);
Assert.IsFalse(asyncTestCommand.CanExecute(100));
}
