public void PauseTheExecutionOfTheProcess()
{
var model = ProcessModel.Create()
.AddEventCatcher("start")
.AddActivity("activity", new UserActivity())
.AddEventThrower("end")
.AddSequenceFlow("start", "activity", "end");
var instances = new InMemoryProcessInstancesStore();
var models = new InMemoryProcessModelsStore(model);
var manager = new ProcessManager(models, instances);
var result = manager.HandleEvent(null).FirstOrDefault();
var instance = manager
.InstancesStore
.GetById(result.ProcessInstanceId);
instance.IsDone.Should().BeFalse();
result = manager.HandleActivityCompletion(
result.ProcessInstanceId,
result.AffectedTokens.First(),
null
);
instance.IsDone.Should().BeTrue();
}
public void UpdateTheDataInputCurrentValue()
{
var output = new DataOutput("a");
var element1 = new NullElement();
element1.Outputs.Add(output);
var input = new DataInput("a");
var element2 = new NullElement();
element2.Inputs.Add(input);
var model = ProcessModel.Create()
.AddNullElement("element1", element1)
.AddNullElement("element2", element2)
.AddDataAssociation("assoc", DataAssociation.Create("element1", "a", "element2", "a"));
var models = new InMemoryProcessModelsStore();
models.Store(model);
var manager = new ProcessManager(
models,
new InMemoryProcessInstancesStore()
);
var instance = ProcessInstance.Create(model);
manager.Attach(instance);
var context = new ExecutionContext(manager, model, instance, instance.Token, null);
output.Update(context, "element1", "Hello World");
input.GetCurrentValue(context, "element2").Should().Be("Hello World");
}
public void ReturnTwoTokensWhenThereAreEventHandlersInBothPaths()
{
var model = ProcessModel.Create()
.AddEventCatcher("start")
.AddActivity("msgBefore", () => { })
.AddParallelGateway("split")
.AddSequenceFlow("start", "msgBefore", "split")
.AddActivity("msgLeft", () => { })
.AddEventCatcher("evtLeft")
.AddActivity("msgRight", () => { })
.AddEventCatcher("evtRight")
.AddParallelGateway("join")
.AddSequenceFlow("split", "msgLeft", "evtLeft", "join")
.AddSequenceFlow("split", "msgRight", "evtRight", "join")
.AddActivity("msgAfter", () => { })
.AddEventThrower("end")
.AddSequenceFlow("join", "msgAfter", "end");
var models = new InMemoryProcessModelsStore(model);
var instances = new InMemoryProcessInstancesStore();
var manager = new ProcessManager(models, instances);
var result = manager.HandleEvent(null);
result.FirstOrDefault().AffectedTokens.Count().Should().Be(2);
}
public void AddingEventCatcherOnlyWithTypeCreatesAnElementWithLogicalName()
{
var model = ProcessModel.Create()
.AddEventCatcherFor <ProductOrdered>();
model.GetElementByName("OnProductOrdered").Should().NotBeNull();
}
public void ReturnTwoTokensWhenStartEventHaveTwoOutcomingConnections()
{
var model = ProcessModel.Create()
.AddEventCatcher(
"start",
CatchAnyEventCatcher.Create()
)
.AddEventCatcher(
"middle1",
CatchAnyEventCatcher.Create()
)
.AddEventCatcher(
"middle2",
CatchAnyEventCatcher.Create()
)
.AddEventThrower(
"end",
SilentEventThrower.Instance
)
.AddSequenceFlow("start", "middle1")
.AddSequenceFlow("start", "middle2")
.AddSequenceFlow("middle1", "end")
.AddSequenceFlow("middle2", "end");
var instance = ProcessInstance.Create(model.Id);
var context = new ExecutionContext(null, model, instance, instance.Token, null);
var tokens = instance.HandleEvent(context, new object());
tokens.Count().Should().Be(2);
tokens.Select(token => token.ExecutionPoint)
.Should().BeEquivalentTo("middle1", "middle2");
}
public void AddingActivityOnlyWithTypeCreatesAnElementWithLogicalName()
{
var model = ProcessModel.Create()
.AddActivity <CheckStockActivity>();
model.GetElementByName("CheckStock").Should().NotBeNull();
}
public void WhenManualActivityFailsCompensationActivitiesRun()
{
var data = 0;
var model = ProcessModel.Create()
.AddAnyEventCatcher("start")
.AddActivity("regular", () => data = 10)
.AddActivity("compensation", () => data -= 5)
.AttachAsCompensationActivity("compensation", "regular")
.AddActivity <ManualActivity>("failing")
.AddEventThrower("end")
.AddSequenceFlow("start", "regular", "failing", "end");
var models = new InMemoryProcessModelsStore(model);
var instances = new InMemoryProcessInstancesStore();
var manager = new ProcessManager(models, instances);
var result = manager.HandleEvent(null).First();
manager.HandleActivityFailure(
result.ProcessInstanceId,
result.AffectedTokens.First(),
null);
data.Should().Be(5);
}
public void SaveStartEventNameAtTheFirstHistoryEntry()
{
var model = ProcessModel.Create()
.AddEventCatcher(
"start",
CatchAnyEventCatcher.Create()
)
.AddEventCatcher(
"middle",
CatchAnyEventCatcher.Create()
)
.AddEventThrower(
"end",
SilentEventThrower.Instance
)
.AddSequenceFlow("start", "middle")
.AddSequenceFlow("middle", "end");
var instance = ProcessInstance.Create(Guid.Parse(model.Id));
var context = new ExecutionContext(null, model, instance, instance.Token, null);
instance.HandleEvent(
context, new object()
);
instance.History.First().ExecutionPoint.Should().Be("start");
}
public void BeRunningAfterHandlingValidStartEvent()
{
var model = ProcessModel.Create()
.AddEventCatcher(
"start",
CatchAnyEventCatcher.Create()
)
.AddEventCatcher(
"middle",
CatchAnyEventCatcher.Create()
)
.AddEventThrower(
"end",
SilentEventThrower.Instance
)
.AddSequenceFlow("start", "middle", "end");
var instance = ProcessInstance.Create(Guid.Parse(model.Id));
var context = new ExecutionContext(null, model, instance, instance.Token, null);
instance.HandleEvent(
context, new object()
);
instance.IsRunning.Should().BeTrue();
instance.Token.ExecutionPoint.Should().Be("middle");
}
public void StartMiddleEnd()
{
var models = new InMemoryProcessModelsStore();
models.Store(ProcessModel.Create()
.AddEventCatcher("start", TypedEventCatcher <Start> .Create())
.AddEventCatcher("middle", CatchAnyEventCatcher.Create())
.AddEventThrower("end", SilentEventThrower.Instance)
.AddSequenceFlow("start", "middle", "end"));
var instances = new InMemoryProcessInstancesStore();
var manager = new ProcessManager(models, instances);
var result = manager.HandleEvent(new Start()).First();
manager.GetExecutionPoint(
result.ProcessInstanceId,
result.AffectedTokens.First()
).Should().Be("middle");
result = manager.HandleEvent(result.ProcessInstanceId, result.AffectedTokens.First(), new object());
manager.InstancesStore.GetById(result.ProcessInstanceId)
.IsDone.Should().Be(true);
}
public void FinishWhenMeetingTheEnd()
{
var model = ProcessModel.Create()
.AddEventCatcher(
"start",
CatchAnyEventCatcher.Create()
)
.AddEventCatcher(
"middle",
CatchAnyEventCatcher.Create()
)
.AddEventThrower(
"end",
SilentEventThrower.Instance
)
.AddSequenceFlow("start", "middle")
.AddSequenceFlow("middle", "end");
var instance = ProcessInstance.Create(model.Id);
var context = new ExecutionContext(null, model, instance, instance.Token, null);
// start
instance.HandleEvent(
context, new object()
).Should().BeEquivalentTo(instance.Token);
// middle
instance.HandleEvent(
context, new object()
).Should().BeEmpty();
instance.IsRunning.Should().BeFalse();
instance.IsDone.Should().BeTrue();
}
public void SimpleDecisionMakingProcess(bool data)
{
var output = false;
var model = ProcessModel.Create()
.AddEventCatcher("start")
.AddExclusiveGateway("If")
.AddActivity("True", () => output = true)
.AddActivity("False", () => output = false)
.AddExclusiveGateway("EndIf")
.AddEventThrower("end")
.AddSequenceFlow("start", "If")
.AddConditionalSequenceFlow("If", "True", true)
.AddConditionalSequenceFlow("If", "False", false)
.AddSequenceFlow("True", "EndIf")
.AddSequenceFlow("False", "EndIf")
.AddSequenceFlow("EndIf", "end");
var models = new InMemoryProcessModelsStore(model);
var instances = new InMemoryProcessInstancesStore();
var manager = new ProcessManager(models, instances);
manager.HandleEvent(data);
output.Should().Be(data);
}
public static void Main()
{
var e1 = false;
var e2 = false;
var e3 = false;
var model = ProcessModel.Create()
.AddEventCatcher("start")
.AddActivity("a1", () => { })
.AddActivity("c1", () => e1 = true)
.AttachAsCompensationActivity("c1", "a1")
.AddActivity("a2", () => throw new Exception())
.AddActivity("c2", () => e2 = true)
.AttachAsCompensationActivity("c2", "a2")
.AddActivity("a3", () => { })
.AddActivity("c3", () => e3 = true)
.AttachAsCompensationActivity("c3", "a3")
.AddEventThrower("end")
.AddSequenceFlow("start", "a1", "a2", "a3", "end");
var models = new InMemoryProcessModelsStore(model);
var instances = new InMemoryProcessInstancesStore();
var sc = new ServiceCollection();
sc.AddLogging(cfg => { cfg.AddConsole(); });
var manager = new ProcessManager(models, instances, sc.BuildServiceProvider());
var result = manager.HandleEvent(null).First();
var relatedInstance = manager.InstancesStore.GetById(result.ProcessInstanceId);
}
public void AddEventCatcherShouldCreateDefaultHandlerWhenItIsNotSpecified()
{
var model = ProcessModel.Create()
.AddEventCatcher("start");
var element = model.GetElementByName("start")?.Element;
element.Should().BeOfType <CatchAnyEventCatcher>();
}
public void AddEventThrowerShouldCreateDefaultThrowerWhenItIsNotSpecified()
{
var model = ProcessModel.Create()
.AddEventThrower("end");
var element = model.GetElementByName("end")?.Element;
element.Should().BeOfType <SilentEventThrower>();
}
public void AnswerIfCouldStartWithSpecificEvent()
{
var model = ProcessModel.Create()
.AddEventCatcher("start", TypedEventCatcher <Start> .Create())
.AddEventThrower("end", SilentEventThrower.Instance)
.AddSequenceFlow("start", "end");
model.CanStartWith(new ExecutionContext(null, null, null, null, null), new object()).Should().BeFalse();
model.CanStartWith(new ExecutionContext(null, null, null, null, null), new Start()).Should().BeTrue();
}
public void ThrowArgumentWhenInsertingElementWithDuplicatedName()
{
Action act = () =>
{
var processModel = ProcessModel.Create()
.AddActivity("act1", LambdaActivity.Create(() => { }))
.AddActivity("act1", LambdaActivity.Create(() => { }));
};
act.Should().Throw <ArgumentException>();
}
public void AcceptModelsWhenAllActivitiesHaveOutcomingConnections()
{
var model = ProcessModel.Create()
.AddAnyEventCatcher("start")
.AddActivity("none", () => { })
.AddEventThrower("end")
.AddSequenceFlow("start", "none", "end");
new EnsureThereAreOutcomingConnectionsWhenNecessaryValidationRule()
.Validate(model).Should().BeEmpty();
}
public void StoreFlow()
{
var model = ProcessModel.Create(Guid.Parse("459f7fad-9ab9-45d5-aff9-f420d89477db"))
.AddEventCatcherFor <InboundOrderAvailableToUnload>("start")
.AddActivity <CreatePalletsToUnload>()
.AddActivityWithCompensation <CreateCheckTasksForUnloadedPallets, CancelCheckTasksForPallets>()
.AddEventThrower <CheckTasksCreated>()
.AddSequenceFlow("start", nameof(CreatePalletsToUnload), nameof(CreateCheckTasksForUnloadedPallets), "end");
ProcessManagerHolder.Instance.ModelsStore.Store(model);
}
public void RejectModelsWhenOneEventCatcherHasNoOutcomingConnections(string catcherName)
{
var model = ProcessModel.Create()
.AddAnyEventCatcher(catcherName)
.AddEventThrower("end")
.AddSequenceFlow("start", "end");
var result = new EnsureThereAreOutcomingConnectionsWhenNecessaryValidationRule()
.Validate(model).ToArray();
result.Should().NotBeEmpty();
result.First().Message.Should().Be($"'{catcherName}' has no outgoing connections.");
}
public void TokenShouldNotBeActiveWhenProcessIsDone()
{
var model = ProcessModel.Create()
.AddEventCatcher("start", CatchAnyEventCatcher.Create())
.AddEventThrower("end", SilentEventThrower.Instance)
.AddSequenceFlow("start", "end");
var instance = ProcessInstance.Create(model.Id);
var context = new ExecutionContext(null, model, instance, instance.Token, null);
instance.HandleEvent(context, new object());
instance.Token.WasReleased.Should().BeTrue();
instance.Token.IsActive.Should().BeFalse();
}
public void BasicSetup()
{
var passed = false;
var model = ProcessModel.Create()
.AddEventCatcher("start", CatchAnyEventCatcher.Create())
.AddActivity("activity", LambdaActivity.Create(() => passed = true))
.AddEventThrower("end", SilentEventThrower.Instance)
.AddSequenceFlow("start", "activity", "end");
var instance = ProcessInstance.Create(model.Id);
var context = new ExecutionContext(null, model, instance, instance.Token, null);
instance.HandleEvent(context, new object());
passed.Should().BeTrue();
}
public void EnumerateStartEventCatchers()
{
var processModel = ProcessModel.Create()
.AddEventCatcher(
"start",
CatchAnyEventCatcher.Create()
)
.AddEventThrower(
"end",
SilentEventThrower.Instance
)
.AddSequenceFlow("start", "end");
var catchers = processModel.GetStartEventCatchers();
Assert.Single(catchers);
}
public void SaveEventDataAsDataObject(object data)
{
var model = ProcessModel.Create()
.AddAnyEventCatcher("OnMessageReceived")
.AddEventThrower("GoodBye", SilentEventThrower.Instance)
.AddSequenceFlow("OnMessageReceived", "GoodBye");
var manager = new ProcessManager(
new InMemoryProcessModelsStore(model),
new InMemoryProcessInstancesStore()
);
var result = manager.HandleEvent(data);
var pinstance = manager.InstancesStore.GetById(result.First().ProcessInstanceId);
pinstance.GetDataObjectValue("MessageReceived").Should().Be(data);
}
public void WhenTheProcessFailsCompensationActivitiesRun2()
{
var model = ProcessModel.Create()
.AddAnyEventCatcher("start")
.AddActivityWithCompensation <RegularActivity, CompensationActivity>()
.AddActivity("failing", () => throw new Exception())
.AddEventThrower("end")
.AddSequenceFlow("start", "Regular", "failing", "end");
var models = new InMemoryProcessModelsStore(model);
var instances = new InMemoryProcessInstancesStore();
var manager = new ProcessManager(models, instances);
manager.HandleEvent(null);
SharedState.Should().Be(5);
}
public void ThrowArgumentExceptionWhenTryingToAttachInstanceWithUnrecognizedModel()
{
var model = ProcessModel.Create()
.AddAnyEventCatcher("start")
.AddEventThrower("end");
var manager = new ProcessManager(
new InMemoryProcessModelsStore(),
new InMemoryProcessInstancesStore()
);
var instance = ProcessInstance.Create(model);
Action sut = () => manager.Attach(instance);
sut.Should().Throw <ArgumentException>();
}
public static ProcessModel CreateModel()
{
return(ProcessModel.Create()
.AddEventCatcherFor <ProductOrdered>()
.AddActivity <CheckStockActivity>()
.AddExclusiveGateway("InStock?")
.AddSequenceFlow("OnProductOrdered", "CheckStock", "InStock?")
.AddActivity <PickStockActivity>()
.AddActivity <ShipOrderActivity>()
.AddEventThrower <InStockEventThrower>()
.AddSequenceFlow("PickStock", "ShipOrder", "InStock")
.AddConditionalSequenceFlow("InStock?", "PickStock", true)
.AddEventThrower <OutOfStockEventThrower>()
.AddConditionalSequenceFlow("InStock?", "OutOfStock", false));
}
public void ReturnElementByName()
{
var obj = NamedProcessElement <IEventThrower> .Create("middle", SilentEventThrower.Instance);
var processModel = ProcessModel.Create()
.AddEventCatcher(
"start",
CatchAnyEventCatcher.Create()
)
.AddEventThrower(obj)
.AddEventThrower(
"end",
SilentEventThrower.Instance
)
.AddSequenceFlow("start", "middle")
.AddSequenceFlow("middle", "end");
processModel.GetElementByName("middle").Should().Be(obj);
}
public void RefuseEventsWhenItIsDone()
{
var count = 0;
var model = ProcessModel.Create()
.AddEventCatcher("start", CatchAnyEventCatcher.Create())
.AddActivity("a1", LambdaActivity.Create(() => count++))
.AddActivity("a2", LambdaActivity.Create(() => count++))
.AddActivity("a3", LambdaActivity.Create(() => count++))
.AddEventThrower("end", SilentEventThrower.Instance)
.AddSequenceFlow("start", "a1", "a2", "a3", "end");
var instance = ProcessInstance.Create(model.Id);
var context = new ExecutionContext(null, model, instance, instance.Token, null);
instance.HandleEvent(context, new object());
instance.HandleEvent(context, new object());
count.Should().Be(3);
}
public void WhenTheProcessFailsCompensationActivitiesRun()
{
var data = 0;
var model = ProcessModel.Create()
.AddAnyEventCatcher("start")
.AddActivity("regular", () => data = 10)
.AddActivity("compensation", () => data -= 5)
.AttachAsCompensationActivity("compensation", "regular")
.AddActivity("failing", () => throw new Exception())
.AddEventThrower("end")
.AddSequenceFlow("start", "regular", "failing", "end");
var models = new InMemoryProcessModelsStore(model);
var instances = new InMemoryProcessInstancesStore();
var manager = new ProcessManager(models, instances);
manager.HandleEvent(null);
data.Should().Be(5);
}