private static List <Step> CrawlForward(List <Step> initialSteps, int maxSteps, Location exit)
{
// keep track of terminals
var terminalSteps = new List <Step>();
// initialize BFS
var queue = new Queue <Step>(initialSteps);
int visitedSteps = 0;
// crawl!
var recorder = new Recorder("Execute");
while (queue.Count > 0 && (visitedSteps < maxSteps))
{
// fetch step
Step step = queue.Dequeue();
visitedSteps++;
// track terminals
if (step.Location == exit)
{
terminalSteps.Add(step);
}
// try every transition
var location = step.Location;
var state = step.State;
int nextDistanceFromEntrance = step.DistanceFromEntrance + 1;
foreach (var transition in location.Transitions)
{
// execute transition
Location nextLocation = transition.Destination;
recorder.Begin();
State nextState = transition.Execute(state);
recorder.End();
if (nextState == null)
{
continue; // transition impassable
}
// location reached with new state -> enqueue
if (nextLocation.AddStep(nextState, nextDistanceFromEntrance, out Step nextStep))
{
queue.Enqueue(nextStep);
}
// connect steps
nextStep.AddPredecessor(step);
step.AddSuccessor(nextStep);
}
}
recorder.Submit();
return(terminalSteps);
}
public void PreventWriteTestMore()
{
var recorder = new Recorder <stAllTypes, PlainstAllTypes>(connector.MAIN.InheritanceRw.level_0, RecorderModeEnum.Graver, 100).Actor;
recorder.Begin(SquashTestFile);
for (int i = 0; i < 254; i++)
{
if (i % 10 == 0)
{
connector.MAIN.InheritanceRw.level_0.STRING_val.Cyclic = i.ToString();
connector.MAIN.InheritanceRw.level_0.Write();
}
recorder.Act();
}
Assert.Throws <InsufficientNumberOfFramesException>(() => recorder.End(SquashTestFile));
}