public void ShouldRemoveQuantifierNOrMore()
{
// Arrange
var quantifierNode = new QuantifierNOrMoreNode(5, new CharacterNode('X'));
var childNodes = new List <RegexNode>
{
new CharacterNode('a'),
new CharacterNode('b'),
new CharacterNode('c'),
quantifierNode
};
var rootNode = new ConcatenationNode(childNodes);
var target = new QuantifierRemovalMutator();
// Act
var result = target.ApplyMutations(quantifierNode, rootNode);
// Assert
var mutation = result.ShouldHaveSingleItem();
mutation.OriginalNode.ShouldBe(quantifierNode);
mutation.ReplacementNode.ToString().ShouldBe("X");
mutation.ReplacementPattern.ShouldBe("abcX");
mutation.DisplayName.ShouldBe("Regex quantifier removal mutation");
mutation.Description.ShouldBe("Quantifier \"{5,}\" was removed at offset 4.");
}
public void ShouldSkipDecrementOnZeroStartValue()
{
// Arrange
var characterNode = new CharacterNode('a');
var quantifierNode = new QuantifierNOrMoreNode(0, characterNode);
var rootNode = new ConcatenationNode(quantifierNode);
var target = new QuantifierUnlimitedQuantityMutator();
var expectedResults = new List <string>
{
"a{1,}",
};
// Act
var mutations = target.ApplyMutations(quantifierNode, rootNode).ToList();
// Assert
var index = 0;
var originalQuantifier = "a{0,}";
foreach (var mutation in mutations)
{
mutation.OriginalNode.ShouldBe(quantifierNode);
mutation.ReplacementNode.ToString().ShouldBe(expectedResults[index]);
mutation.ReplacementPattern.ShouldBe(expectedResults[index]);
mutation.DisplayName.ShouldBe("Regex greedy quantifier quantity mutation");
mutation.Description.ShouldBe($"Quantifier \"{originalQuantifier}\" was replaced with \"{expectedResults[index]}\" at offset 1.");
index++;
}
mutations.Count.ShouldBe(1);
}
public void ToStringShouldReturnQuantifierNOrMoreOfIntegerNIfNoOriginalNIsGiven()
{
// Arrange
var characterNode = new CharacterNode('a');
var target = new QuantifierNOrMoreNode(5, characterNode);
// Act
var result = target.ToString();
// Assert
result.ShouldBe("a{5,}");
}
public void ToStringShouldReturnOriginalQuantifierNOrMoreOnChildNodeToString()
{
// Arrange
var characterNode = new CharacterNode('a');
var target = new QuantifierNOrMoreNode("05", characterNode);
// Act
var result = target.ToString();
// Assert
result.ShouldBe("a{05,}");
}
public void SpanShouldStartAfterChildNodes()
{
// Arrange
var childNode = new CharacterNode('a');
var target = new QuantifierNOrMoreNode(5, childNode);
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(childNode.ToString().Length);
Length.ShouldBe(4);
}
public void ChildNodeShouldStartBeforeQuantifier()
{
// Arrange
var target = new CharacterNode('a');
_ = new QuantifierNOrMoreNode(5, target);
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(0);
Length.ShouldBe(1);
}
public void ToStringOnQuantifierWithPrefixShouldReturnPrefixBeforeOriginalQuantifierAndAfterQuantifiersChildNode()
{
// Arrange
var comment = new CommentGroupNode("This is a comment.");
var characterNode = new CharacterNode('a');
var target = new QuantifierNOrMoreNode("05", characterNode)
{
Prefix = comment
};
// Act
var result = target.ToString();
// Assert
result.ShouldBe("a(?#This is a comment.){05,}");
}
public void CopyingQuantifierNOrMoreNodeShouldCopyOriginalNAndN()
{
// Arrange
var childNode = new CharacterNode('a');
var target = new QuantifierNOrMoreNode("5", childNode);
// Act
// ReplaceNode returns a copy of the current node.
var result = target.ReplaceNode(childNode, new CharacterNode('b'));
// Assert
QuantifierNOrMoreNode quantifierNorMoreNode = result.ShouldBeOfType <QuantifierNOrMoreNode>();
quantifierNorMoreNode.OriginalN.ShouldBe(target.OriginalN);
quantifierNorMoreNode.N.ShouldBe(target.N);
}
public void SpanShouldStartAfterPrefix()
{
// Arrange
var childNode = new CharacterNode('a');
var prefix = new CommentGroupNode("X");
var target = new QuantifierNOrMoreNode(5, childNode)
{
Prefix = prefix
};
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(6);
Length.ShouldBe(4);
}
public void ChildNodeShouldStartBeforeQuantifiersPrefix()
{
// Arrange
var target = new CharacterNode('a');
var prefix = new CommentGroupNode("X");
_ = new QuantifierNOrMoreNode(5, target)
{
Prefix = prefix
};
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(0);
Length.ShouldBe(1);
}
