public void TestLatestExecution_TracksActionTask()
{
var tcs = new TaskCompletionSource <object>();
var objectUnderTest = new ProtectedAsyncCommand(() => tcs.Task);
objectUnderTest.Execute(null);
Assert.AreEqual(tcs.Task, objectUnderTest.LatestExecution.ActualTask);
}
public void TestExecute_UpdatesLatestExecution()
{
var objectUnderTest = new ProtectedAsyncCommand(() => Task.CompletedTask);
AsyncProperty originalExecution = objectUnderTest.LatestExecution;
objectUnderTest.Execute(null);
Assert.AreNotEqual(originalExecution, objectUnderTest.LatestExecution);
}
public void TestLatestExecution_NotifiesOnChange()
{
var objectUnderTest = new ProtectedAsyncCommand(() => Task.CompletedTask);
var changedProperties = new List <string>();
objectUnderTest.PropertyChanged += (sender, args) => changedProperties.Add(args.PropertyName);
objectUnderTest.Execute(null);
CollectionAssert.AreEqual(new[] { nameof(objectUnderTest.LatestExecution) }, changedProperties);
}
public void TestExecute_InvokesProvidedAction()
{
var tcs = new TaskCompletionSource <object>();
var actionMock = new Mock <Func <Task> >();
actionMock.Setup(f => f()).Returns(tcs.Task);
var objectUnderTest = new ProtectedAsyncCommand(actionMock.Object);
objectUnderTest.Execute(null);
actionMock.Verify(f => f(), Times.Once);
}
public void TestExecute_DoesNotThrowWhenActionErrors()
{
var objectUnderTest = new ProtectedAsyncCommand(() => Task.FromException(new Exception()));
objectUnderTest.Execute(null);
}