public override IExpression GetInverse()
{
var seed = new List <List <IExpression> > {
_elementaryExpressions
};
var expandedRepeatRepresentation = ExpandHelper.ExpandListRepresentation(seed, null, WasExpandedRepeatExpressionAddedToList);
var intersectInverseList = expandedRepeatRepresentation.Select(GetInverseOfExpandedConcatRepresentation).ToList();
return(new IntersectionExpression(intersectInverseList, _random));
}
public override IList <IStringBuilder> Expand()
{
var seedContent = RemoveTooLongExpressions(ExpansionLength, _concatExpressions)
.Select(concatExpression => concatExpression.Expand()).ToList();
var seed = new List <List <IList <IStringBuilder> > > {
seedContent
};
var expandedStringBuilderList = ExpandHelper.ExpandListRepresentation(seed, null, ExpandHelper.WasExpandedStringBuilderListAddedToList);
return(MergeStringBuildersForEachUnion(expandedStringBuilderList));
}
public void ExpandListRepresentation_ReturnedListHasOneElement_WhenSeedContainsNoElementToBeExpanded()
{
ExpansionStatus WasNotExpanded(List <int> expression, List <List <int> > expandedElements, int pos) => ExpansionStatus.NotExpanded;
var seed = new List <List <int> > {
new List <int> {
1
}
};
var result = ExpandHelper.ExpandListRepresentation(seed, null, WasNotExpanded);
Assert.AreEqual(1, result.Count);
}
public override IList <IStringBuilder> Expand()
{
var seed = new List <List <IExpression> > {
_elementaryExpressions
};
var expandedRepeatRepresentation = ExpandHelper.ExpandListRepresentation(seed, ExpansionLength, WasExpandedRepeatExpressionAddedToList);
var convertedExpressions = new List <List <IList <IStringBuilder> > >();
foreach (var expressionList in expandedRepeatRepresentation)
{
var expandedExpression = expressionList.Select(x => x.Expand()).ToList();
convertedExpressions.Add(expandedExpression);
}
var expandedUnionList = ExpandHelper.ExpandListRepresentation(convertedExpressions, ExpansionLength, ExpandHelper.WasExpandedStringBuilderListAddedToList);
return(CreateConcatenatedStringBuilderForEachExpansion(expandedUnionList));
}
public void ExpandListRepresentation_ReturnedListHasThreeElements_WhenSeedContainsElementToBeExpandedIntoThreeSubelements()
{
ExpansionStatus WasExpanded(IEnumerable <int> expression, ICollection <List <int> > expandedElements, int pos)
{
foreach (var i in expression)
{
expandedElements.Add(new List <int> {
i
});
}
return(ExpansionStatus.Expanded);
}
var seed = new List <List <int> > {
new List <int> {
1, 2, 3
}
};
var result = ExpandHelper.ExpandListRepresentation(seed, null, WasExpanded);
Assert.AreEqual(3, result.Count);
}