public void Expand_ReturnsListContaining3ElementsOfLength4_WhenOneExpandableExpressionWith3PossibleSubexpressionsIsContained()
{
var mockA = new StringBuilderMock(ToCharacterClassList("a"));
var mock1 = new StringBuilderMock(ToCharacterClassList("1"));
var mock2 = new StringBuilderMock(ToCharacterClassList("2"));
var mock3 = new StringBuilderMock(ToCharacterClassList("3"));
var simpleExpression = Substitute.For <IExpression>();
simpleExpression.RepeatRange = new IntegerInterval(1);
simpleExpression.Expand().Returns(new List <IStringBuilder> {
mockA
});
var expandableExpression = Substitute.For <IExpression>();
expandableExpression.RepeatRange = new IntegerInterval(1);
expandableExpression.Expand().Returns(new List <IStringBuilder> {
mock1, mock2, mock3
});
var concat = new ConcatenationExpression(_random);
concat.SetExpansionLength(4);
concat.Append(simpleExpression).Append(expandableExpression).Append(simpleExpression).Append(simpleExpression);
var result = concat.Expand();
Assert.AreEqual(3, result.Count);
Assert.AreEqual("a1aa", result[0].GenerateString());
Assert.AreEqual("a2aa", result[1].GenerateString());
Assert.AreEqual("a3aa", result[2].GenerateString());
}
public void ToSingleRegexString_ReturnsUlrike_WhenConcatExpressionContainsOneElementReturningFranziska()
{
var mock = new StringBuilderMock(ToCharacterClassList("Ulrike"));
_expression.ToStringBuilder().Returns(mock);
var concatExpression = new ConcatenationExpressionTest(_randomGenerator);
concatExpression.Append(_expression);
var result = concatExpression.ToSingleStringBuilder().GenerateString();
Assert.AreEqual("Ulrike", result);
}
public void ConcatWith_ReturnsBuilderGeneratingLength2Strings_WhenEachbuilderGeneratesLength1Strings()
{
var builder1 = new StringBuilder(new List <CharacterClassExpression> {
_charClass1
});
var builder2 = new StringBuilderMock(new List <CharacterClassExpression> {
_charClass2
});
var result = builder1.ConcatWith(builder2).GenerateString();
Assert.AreEqual(2, result.Length);
Assert.AreEqual("ab", result);
}
public void IntersectWith_ReturnsLetterC_WhenIntersectionIsBCAndRandomReturns1()
{
_random.GetNextInteger(Arg.Any <int>(), Arg.Any <int>()).Returns(1);
var builder1 = new StringBuilder(new List <CharacterClassExpression> {
_charClass1
});
var builder2 = new StringBuilderMock(new List <CharacterClassExpression> {
_charClass2
});
var stringBuilder = builder1.IntersectWith(builder2);
var result = stringBuilder.GenerateString();
Assert.AreEqual(1, result.Length);
Assert.AreEqual("c", result);
}
public void ToSingleRegexString_ReturnsJaFran_WhenConcatExpressionContainsTwoElementReturningFranziskaAndJ()
{
var mock1 = new StringBuilderMock(ToCharacterClassList("Fran"));
var mock2 = new StringBuilderMock(ToCharacterClassList("Ja"));
var secondExpression = Substitute.For <IExpression>();
secondExpression.ToStringBuilder().Returns(mock1);
_expression.ToStringBuilder().Returns(mock2);
var concatExpression = new ConcatenationExpressionTest(_randomGenerator);
concatExpression.Append(_expression).Append(secondExpression);
var result = concatExpression.ToSingleStringBuilder().GenerateString();
Assert.AreEqual("JaFran", result);
}
