private void IncreaseMainBranchWeights(BranchSet branchSet, IEnumerable <EBranch> branches, int increment)
{
foreach (var branch in branches)
{
_mainBranchWeights[branchSet][branch] += increment;
}
}
private void AddIfMissing(BranchSet branchSet, IEnumerable <EBranch> branches)
{
if (!_mainBranchOccurrences.ContainsKey(branchSet))
{
var internalDictionary = new Dictionary <EBranch, int>();
foreach (var branch in branches)
{
internalDictionary.Add(branch, EInteger.Number.Zero);
}
_mainBranchOccurrences.Add(branchSet, internalDictionary);
}
if (!_mainBranchWeights.ContainsKey(branchSet))
{
var internalDictionary = new Dictionary <EBranch, int>();
foreach (var branch in branches)
{
internalDictionary.Add(branch, EInteger.Number.One);
}
_mainBranchWeights.Add(branchSet, internalDictionary);
}
}
private void ResetMainBranchWeights(BranchSet branchSet, IEnumerable <EBranch> branches)
{
var mainBranchWeights = _mainBranchWeights[branchSet];
foreach (var branch in branches)
{
mainBranchWeights[branch] = EInteger.Number.One;
}
}
public void Constructor_IgnoresInvalidBranches()
{
// arrange
var branches = typeof(EBranch).GetEnumerationItems <EBranch>();
var validBranches = branches.Where(branch => branch.IsValid());
// act
var branchSet = new BranchSet(branches);
// assert
branchSet.Branches.Should().BeEquivalentTo(validBranches);
}
internal override void EmitBranch(CodeGen g, BranchSet branchSet, Label label)
{
IStandardOperation stdOp = af.Method as IStandardOperation;
if (op.branchOp == 0 || stdOp == null)
{
base.EmitBranch(g, branchSet, label);
return;
}
af.EmitArgs(g, operands);
g.IL.Emit(branchSet.Get(op.branchOp, stdOp.IsUnsigned), label);
}
public override void EmitBranch(CodeGen g, BranchSet branchSet, Label label)
{
IStandardOperation stdOp = af.Method as IStandardOperation;
if (op.branchOp == 0 || stdOp == null)
{
base.EmitBranch(g, branchSet, label);
return;
}
af.EmitArgs(g, operands);
g.IL.Emit(branchSet.Get(op.branchOp, stdOp.IsUnsigned), label);
}
public void Constructor_1_Branch()
{
// arrange
var branches = new List <EBranch> {
EBranch.Army
};
// act
var branchSet = new BranchSet(branches);
// assert
branchSet.Branches.Should().BeEquivalentTo(branches);
}
internal override void EmitBranch(CodeGen g, BranchSet branchSet, Label label)
{
PrepareAf(g.TypeMapper);
IStandardOperation stdOp = _af.Method as IStandardOperation;
if (_op.BranchOp == 0 || stdOp == null)
{
base.EmitBranch(g, branchSet, label);
return;
}
_af.EmitArgs(g, _operands);
g.IL.Emit(branchSet.Get(_op.BranchOp, stdOp.IsUnsigned), label);
}
public void GetHashCode_EmptySets_ShouldBeEqual()
{
// arrange
var branchesA = new List <EBranch>();
var branchesB = new List <EBranch>();
var branchSetA = new BranchSet(branchesA);
var branchSetB = new BranchSet(branchesB);
// act
var setsAreEqual = branchSetA.GetHashCode() == branchSetB.GetHashCode();
// assert
setsAreEqual.Should().BeTrue();
}
private EBranch GetRandomMainBranch(BranchSet branchSet, IEnumerable <EBranch> branches)
{
var scaleStringBuilder = new StringBuilder();
foreach (var branch in branches)
{
scaleStringBuilder.Append(string.Empty.PadLeft(_mainBranchWeights[branchSet][branch], branch.CastTo <int>().ToString().First()));
}
var scaleString = scaleStringBuilder.ToString();
return(int
.Parse(scaleString[_generator.Next(scaleString.Count())].ToString())
.CastTo <EBranch>()
);
}
public void GetHashCode_DifferentBranchOrder_ShouldBeEqual()
{
// arrange
var branchesA = new List <EBranch> {
EBranch.Army, EBranch.Aviation
};
var branchesB = new List <EBranch> {
EBranch.Aviation, EBranch.Army
};
var branchSetA = new BranchSet(branchesA);
var branchSetB = new BranchSet(branchesB);
// act
var setsAreEqual = branchSetA.GetHashCode() == branchSetB.GetHashCode();
// assert
setsAreEqual.Should().BeTrue();
}
private EBranch GetRandomMainBranch(BranchSet branchSet, IEnumerable <EBranch> branches)
{
var scaleStringBuilder = new StringBuilder();
foreach (var branch in branches)
{
var weight = _mainBranchWeights[branchSet][branch];
var branchCode = branch.GetSingleDigitCode();
var paddedString = string.Empty.PadLeft(weight, branchCode.ToString().First());
scaleStringBuilder.Append(paddedString);
}
var scaleString = scaleStringBuilder.ToString();
var selectedBranchCode = int.Parse(scaleString[_generator.Next(scaleString.Count())].ToString());
return(EBranchExtensions.FromSingleDigitCode(selectedBranchCode));
}
protected override T GetRandomCore <T>(IEnumerable <T> items, ERandomisationStep randomisationStep)
{
if (typeof(T) == typeof(EBranch) && randomisationStep == ERandomisationStep.MainBranchWhenSelectingByCategories)
{
var branches = items.OfType <EBranch>();
var branchSet = new BranchSet(branches);
AddIfMissing(branchSet, branches);
var mainBranchOccurrences = _mainBranchOccurrences[branchSet];
var selectedBranch = EBranch.None;
if (mainBranchOccurrences.Values.AllEqual())
{
selectedBranch = base.GetRandomCore(items, randomisationStep).CastTo <EBranch>();
}
else
{
var mostOccurences = mainBranchOccurrences.Max(keyValuePair => keyValuePair.Value);
var leastOccurrences = mainBranchOccurrences.Min(keyValuePair => keyValuePair.Value);
var leastOccurredMainBranches = mainBranchOccurrences.GetKeyWhereValue(occurrenceCount => occurrenceCount == leastOccurrences);
IncreaseMainBranchWeights(branchSet, leastOccurredMainBranches, mostOccurences - leastOccurrences);
selectedBranch = GetRandomMainBranch(branchSet, branches);
ResetMainBranchWeights(branchSet, branches);
}
mainBranchOccurrences[selectedBranch] += EInteger.Number.One;
return(selectedBranch.CastTo <T>());
}
else
{
return(base.GetRandomCore(items, randomisationStep));
}
}
internal override void EmitBranch(CodeGen g, BranchSet branchSet, Label label)
{
_operand.EmitBranch(g, branchSet, label);
}