/// <summary>
/// Constructor.
/// </summary>
/// <param name="configuration">Configuration</param>
/// <param name="logger">ILogger</param>
public InteractiveStrategy(Configuration configuration, IO.ILogger logger)
{
this.Logger = logger ?? new ConsoleLogger();
this.Configuration = configuration;
this.InputCache = new List <string>();
this.ExploredSteps = 0;
}
/// <summary>
/// Installs the specified <see cref="IO.ILogger"/>.
/// </summary>
/// <param name="logger">ILogger</param>
public void SetLogger(IO.ILogger logger)
{
if (logger == null)
{
throw new InvalidOperationException("Cannot install a null logger.");
}
this.Logger.Dispose();
this.Logger = logger;
this.ErrorReporter.Logger = logger;
}
/// <summary>
/// Initialized the testing engine.
/// </summary>
/// <param name="configuration">Configuration</param>
private void Initialize(Configuration configuration)
{
this.Configuration = configuration;
this.Logger = new ConsoleLogger();
this.ErrorReporter = new ErrorReporter(this.Configuration, this.Logger);
this.Profiler = new Profiler();
this.PerIterationCallbacks = new HashSet <Action <int> >();
// Initializes scheduling strategy specific components.
this.SchedulingStrategyLogger = new SchedulingStrategyLogger(this.Configuration);
this.SetRandomNumberGenerator();
this.TestReport = new TestReport(this.Configuration);
this.CancellationTokenSource = new CancellationTokenSource();
this.PrintGuard = 1;
if (this.Configuration.SchedulingStrategy == SchedulingStrategy.Interactive)
{
this.Strategy = new InteractiveStrategy(this.Configuration, this.Logger);
this.Configuration.SchedulingIterations = 1;
this.Configuration.PerformFullExploration = false;
this.Configuration.Verbose = 2;
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.Replay)
{
var scheduleDump = this.GetScheduleForReplay(out bool isFair);
ScheduleTrace schedule = new ScheduleTrace(scheduleDump);
this.Strategy = new ReplayStrategy(this.Configuration, schedule, isFair);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.Random)
{
this.Strategy = new RandomStrategy(this.Configuration.MaxFairSchedulingSteps, this.RandomNumberGenerator);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.ProbabilisticRandom)
{
this.Strategy = new ProbabilisticRandomStrategy(this.Configuration.MaxFairSchedulingSteps,
this.Configuration.CoinFlipBound, this.RandomNumberGenerator);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.PCT)
{
this.Strategy = new PCTStrategy(this.Configuration.MaxUnfairSchedulingSteps, this.Configuration.PrioritySwitchBound,
this.SchedulingStrategyLogger, this.RandomNumberGenerator);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.FairPCT)
{
var prefixLength = this.Configuration.SafetyPrefixBound == 0 ?
this.Configuration.MaxUnfairSchedulingSteps : this.Configuration.SafetyPrefixBound;
var prefixStrategy = new PCTStrategy(prefixLength, this.Configuration.PrioritySwitchBound,
this.SchedulingStrategyLogger, this.RandomNumberGenerator);
var suffixStrategy = new RandomStrategy(this.Configuration.MaxFairSchedulingSteps, this.RandomNumberGenerator);
this.Strategy = new ComboStrategy(prefixStrategy, suffixStrategy);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.DFS)
{
this.Strategy = new DFSStrategy(this.Configuration.MaxUnfairSchedulingSteps, this.SchedulingStrategyLogger);
this.Configuration.PerformFullExploration = false;
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.IDDFS)
{
this.Strategy = new IterativeDeepeningDFSStrategy(this.Configuration.MaxUnfairSchedulingSteps,
this.SchedulingStrategyLogger);
this.Configuration.PerformFullExploration = false;
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.DPOR)
{
this.Strategy = new DPORStrategy(
new ContractAsserter(),
null,
-1,
this.Configuration.MaxUnfairSchedulingSteps);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.RDPOR)
{
this.Strategy = new DPORStrategy(
new ContractAsserter(),
this.RandomNumberGenerator,
-1,
this.Configuration.MaxFairSchedulingSteps);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.DelayBounding)
{
this.Strategy = new ExhaustiveDelayBoundingStrategy(this.Configuration.MaxUnfairSchedulingSteps,
this.Configuration.DelayBound, this.SchedulingStrategyLogger, this.RandomNumberGenerator);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.RandomDelayBounding)
{
this.Strategy = new RandomDelayBoundingStrategy(this.Configuration.MaxUnfairSchedulingSteps,
this.Configuration.DelayBound, this.SchedulingStrategyLogger, this.RandomNumberGenerator);
}
else if (this.Configuration.SchedulingStrategy == SchedulingStrategy.Portfolio)
{
Error.ReportAndExit("Portfolio testing strategy is only " +
"available in parallel testing.");
}
if (this.Configuration.SchedulingStrategy != SchedulingStrategy.Replay &&
this.Configuration.ScheduleFile.Length > 0)
{
var scheduleDump = this.GetScheduleForReplay(out bool isFair);
ScheduleTrace schedule = new ScheduleTrace(scheduleDump);
this.Strategy = new ReplayStrategy(this.Configuration, schedule, isFair, this.Strategy);
}
}
