internal override IEnumerable <TestActivity> GetChildren()
{
List <TestFlowConditional> conditionals = new List <TestFlowConditional>();
List <TestFlowSwitchBase> switches = new List <TestFlowSwitchBase>();
List <TestActivity> activities = new List <TestActivity>();
TestFlowElement current = _startElement;
while (current != null)
{
if (current is TestFlowConditional && !conditionals.Contains((TestFlowConditional)current))
{
conditionals.Add((TestFlowConditional)current);
}
else if (current is TestFlowSwitchBase && !switches.Contains((TestFlowSwitchBase)current))
{
switches.Add((TestFlowSwitchBase)current);
}
else if (current is TestFlowStep && ((TestFlowStep)current).ActionActivity != null)
{
activities.Add(((TestFlowStep)current).ActionActivity);
}
current = current.GetNextElement();
}
ResetConditionalsIterationCounter(conditionals);
ResetSwitchesIterationCounter(switches);
return(activities);
}
protected void AddFlowElement(TestFlowElement item)
{
if (_startElement == null)
{
SetStartNode(item);
}
((Flowchart)ProductActivity).Nodes.Add(item.GetProductElement());
}
// This overload is for more complicated scenarios
private TestFlowElement AddTestFlowLink(TestFlowElement flowchartElement)
{
if (!_elements.Contains(flowchartElement))
{
_elements.Add(flowchartElement);
}
return(flowchartElement);
}
/// <summary>
/// Return the node that the given FlowSwitch will execute based on the hint and cases set.
///
/// Note that this function works only for FlowSwitch that is NOT in a loop.
/// </summary>
public TestFlowElement GetFlowSwitchChosenNode(TestFlowSwitchBase flowSwitch)
{
TestFlowElement chosenCase = flowSwitch.GetNextElement();
ResetSwitchesIterationCounter(new List <TestFlowSwitchBase>()
{
flowSwitch
}); // reset the iteration counter to erase the side-effect caused by GetNextElement();
return(chosenCase);
}
public TestFlowElement AddLink(TestActivity sourceActivity, TestFlowElement flowElement)
{
TestFlowStep sourceStep = GetFlowStepContainingActionActivity(sourceActivity);
if (sourceStep == null)
{
sourceStep = new TestFlowStep(sourceActivity);
SetStartNode(sourceStep);
AddTestFlowLink(sourceStep);
}
sourceStep.NextElement = flowElement;
AddTestFlowLink(flowElement);
return(sourceStep);
}
/// <summary>
/// Modify the FlowStep's Next to point to a different node.
///
/// This function is useful when we try to swap nodes because GetFlowStepContainingActionActivity()
/// use the GetNextElement() to loop through all elements, as a result, it won't be able to loop
/// through all the this.Elements in the middle of swapping.
/// </summary>
/// <param name="flowStep">FlowStep to be updated</param>
/// <param name="newNextNode">new node to be executed next</param>
/// <param name="removeOldNextNode">wehther we want to remove the old Next node from Flowchart</param>
public void ChangeFlowStepNextNode(TestFlowStep flowStep, TestFlowElement newNextNode, bool removeOldNextNode = true)
{
// remove old Next node from Flowchart
if (removeOldNextNode)
{
this.Elements.Remove(flowStep.NextElement);
}
// add new Next node to Flowchart
if (newNextNode != null)
{
this.AddTestFlowLink(newNextNode);
}
// set new Next node
flowStep.NextElement = newNextNode;
}
/// <summary>
/// Update the activity to execute of the given caseExpression/caseIndex
/// </summary>
/// <param name="caseExpression">used for locating the case in the product</param>
/// <param name="caseIndex">used for locating the case in the test object</param>
/// <param name="newElement">new node to be added to FlowSwitch</param>
internal void UpdateCase(T caseExpression, int caseIndex, TestFlowElement newElement)
{
if (caseIndex < 0 || caseIndex >= this.caseElements.Count)
{
throw new ArgumentException("Given caseIndex is out of range.");
}
if (caseExpression == null)
{
throw new ArgumentException("Given caseExpression is null.");
}
if (!(this.productFlowSwitch as FlowSwitch <T>).Cases.ContainsKey(caseExpression))
{
throw new ArgumentException("Given caseExpression cannot be found in the set of cases.");
}
(this.productFlowSwitch as FlowSwitch <T>).Cases[caseExpression] = (newElement == null) ? null : newElement.GetProductElement();
this.caseElements.RemoveAt(caseIndex);
this.caseElements.Insert(caseIndex, newElement);
}
protected Outcome GetTrace <T>(TraceGroup traceGroup)
{
Outcome outcome = Outcome.Completed;
switch (expressionType)
{
case ExpressionType.Activity:
outcome = this.expressionActivity.GetTrace(traceGroup);
if (outcome.DefaultPropogationState != OutcomeState.Completed)
{
return(outcome);
}
break;
case ExpressionType.Literal:
new TestDummyTraceActivity(typeof(Literal <T>), Outcome.Completed).GetTrace(traceGroup);
break;
case ExpressionType.VisualBasicValue:
new TestDummyTraceActivity(typeof(LambdaValue <T>), Outcome.Completed).GetTrace(traceGroup);
break;
case ExpressionType.VariableValue:
new TestDummyTraceActivity(typeof(VariableValue <T>), Outcome.Completed).GetTrace(traceGroup);
break;
default: break;
}
TestFlowElement element = GetNextElement();
if (element != null)
{
return(element.GetTrace(traceGroup));
}
return(Outcome.Completed);
}
private TestFlowStep GetFlowStepContainingActionActivity(TestActivity activity)
{
if (_startElement == null || activity == null)
{
return(null);
}
List <TestFlowConditional> conditionals = new List <TestFlowConditional>();
List <TestFlowSwitchBase> switches = new List <TestFlowSwitchBase>();
TestFlowElement current = _startElement;
while (current != null)
{
if (current is TestFlowConditional && !conditionals.Contains((TestFlowConditional)current))
{
conditionals.Add((TestFlowConditional)current);
}
else if (current is TestFlowSwitchBase && !switches.Contains((TestFlowSwitchBase)current))
{
switches.Add((TestFlowSwitchBase)current);
}
else if (current is TestFlowStep && ((TestFlowStep)current).ActionActivity.DisplayName == activity.DisplayName)
{
//Need to reset the iteration numbers of
//flowconditionals and flowSwitched since they will be increment
//on GetNextElement()
ResetConditionalsIterationCounter(conditionals);
ResetSwitchesIterationCounter(switches);
return(current as TestFlowStep);
}
current = current.GetNextElement();
}
ResetConditionalsIterationCounter(conditionals);
ResetSwitchesIterationCounter(switches);
return(null);
}
protected bool RemoveFlowElementItem(TestFlowElement item)
{
return(((Flowchart)ProductActivity).Nodes.Remove(item.GetProductElement()));
}
private void SetStartNode(TestFlowElement startElement)
{
_startElement = startElement;
((Flowchart)ProductActivity).StartNode = startElement.GetProductElement();
}
public TestFlowElement AddConditionalLink(TestActivity sourceActivity, TestFlowConditional flowConditional, TestFlowElement trueFlowElement, TestFlowElement falseFlowElement)
{
AddConditionalLink(sourceActivity, flowConditional, (TestActivity)null, (TestActivity)null);
flowConditional.TrueAction = trueFlowElement;
flowConditional.FalseAction = falseFlowElement;
AddTestFlowLink(trueFlowElement);
AddTestFlowLink(falseFlowElement);
return(flowConditional);
}
internal void AddCase(T expression, TestFlowElement element)
{
(this.productFlowSwitch as FlowSwitch <T>).Cases.Add(expression, element == null ? null : element.GetProductElement());
this.caseElements.Add(element);
}