public Population(GaParameterInfo gaParameters, AbstractFunction function)
{
RelatedFunction = function;
RetainRate = gaParameters.RetainRate;
SelectionRate = gaParameters.SelectionRate;
MutationRate = gaParameters.MutationRate;
ChromosomeLengthForOneSubValue = gaParameters.ChromosomeLengthForOneSubValue;
SubValueQuantity = function.Paras.Count;
ChromosomeLength = gaParameters.ChromosomeLengthForOneSubValue * function.Paras.Count;
ChromosomeQuantity = gaParameters.ChromosomeQuantity;
}
public static List <AssertionInfo> GetAssertions(GaParameterInfo gaParameters, AbstractFunction function,
List <string> targetPaths)
{
var assertions = new List <AssertionInfo>();
// 写文件的准备
const string logPath = @"c:\#GA_DEMO\galog.txt";
var writer = new StreamWriter(logPath);
var stopwatch = new Stopwatch();
var builder = new StringBuilder();
stopwatch.Start();
foreach (var targetPath in targetPaths)
{
var found = false;
// 下面这句漏掉会出错！
function.TargetPath = targetPath;
//新建一个种群
var population = new Population(gaParameters, function);
//随机生成染色体
population.RandomGenerateChromosome();
for (var i = 0; i < gaParameters.GenerationQuantity; i++)
{
var maxFitness = population.Chromosomes.Max(c => c.Fitness);
var mostFittest = population.Chromosomes.First(c =>
Equals(c.Fitness, maxFitness));
stopwatch.Stop();
// 得到当前代最优染色体信息
var line =
$"{$"{i + 1}",-6} | {$"value(s): {string.Join(" ", mostFittest.DecodedSubValues.ToArray())}",-30} | {$"target path: {function.TargetPath}",-30} | {$"execution path: {mostFittest.ExecutionPath}",-30} | {$"fitness: {mostFittest.Fitness}",-10} | {$"result: {mostFittest.Result}",-20}";
builder.AppendLine(line);
//以下为终止条件
if (mostFittest.ExecutionPath == targetPath)
{
found = true;
//将找到的数据添加到测试数据集中
var assertion = new AssertionInfo();
assertion.InputValues.AddRange(mostFittest.DecodedSubValues.Select(v => v).ToList());
assertions.Add(assertion);
builder.AppendLine("FOUND".PadLeft(130 / 2, '-').PadRight(130, '-'));
break;
}
//进化
population.Evolve(gaParameters.SelectionType);
stopwatch.Start();
}
stopwatch.Stop();
if (!found)
{
builder.AppendLine("NOT FOUND".PadLeft(130 / 2, '-').PadRight(130, '-'));
}
stopwatch.Start();
}
stopwatch.Stop();
builder.AppendLine($"total time cost: {stopwatch.ElapsedMilliseconds} ms");
writer.Write(builder.ToString());
writer.Close();
return(assertions);
}
public static List <AssertionInfo> GetAssertions(GaParameterInfo gaParameters, AbstractFunction function,
List <string> targetPaths)
{
var rnd = new Random();
var builder = new StringBuilder();
var values = new double[function.Paras.Count];
var assertions = new List <AssertionInfo>();
const string logPath = @"c:\#GA_DEMO\rndlog.txt";
var writer = new StreamWriter(logPath);
var stopwatch = new Stopwatch();
stopwatch.Start();
foreach (var targetPath in targetPaths)
{
var found = false;
// 下面这句漏掉会出错！
function.TargetPath = targetPath;
for (long i = 0; i < int.MaxValue; i++)
{
// 随机生成所有实参的值
foreach (var para in function.Paras)
{
values[function.Paras.IndexOf(para)] =
(int)(rnd.NextDouble() * (para.UpperBound - para.LowerBound) + para.LowerBound);
}
var result = function.OriginalFunction(values);
var executionPath = function.StubbedFunction(values);
stopwatch.Stop();
var line =
$"{$"{i + 1}",-6} | {$"value(s): {string.Join(" ", values.ToArray())}",-30} | {$"target path: {function.TargetPath}",-30} | {$"execution path: {executionPath}",-30} | {$"result: {result}",-20}";
builder.AppendLine(line);
//以下为终止条件
//如果当前执行路径包含任何目标路径
if (executionPath == targetPath)
{
found = true;
//将找到的数据添加到测试数据集中
var assertion = new AssertionInfo();
assertion.InputValues.AddRange(values.ToList());
assertions.Add(assertion);
builder.AppendLine("FOUND".PadLeft((line.Length - 5) / 2, '-').PadRight(line.Length, '-'));
break;
}
stopwatch.Start();
}
stopwatch.Stop();
if (!found)
{
builder.AppendLine("NOT FOUND".PadLeft(130 / 2, '-').PadRight(130, '-'));
}
stopwatch.Start();
}
stopwatch.Stop();
builder.AppendLine($"total time cost: {stopwatch.ElapsedMilliseconds} ms");
writer.Write(builder.ToString());
writer.Close();
return(assertions);
}