public void ShouldRemoveLazyQuantifier()
{
// Arrange
var quantifierNode = new QuantifierStarNode(new CharacterNode('X'));
var lazyNode = new LazyNode(quantifierNode);
var childNodes = new List <RegexNode>
{
new CharacterNode('a'),
new CharacterNode('b'),
new CharacterNode('c'),
lazyNode
};
var rootNode = new ConcatenationNode(childNodes);
var target = new QuantifierRemovalMutator();
// Act
var result = target.ApplyMutations(quantifierNode, rootNode);
// Assert
var mutation = result.ShouldHaveSingleItem();
mutation.OriginalNode.ShouldBe(lazyNode);
mutation.ReplacementNode.ToString().ShouldBe("X");
mutation.ReplacementPattern.ShouldBe("abcX");
mutation.DisplayName.ShouldBe("Regex quantifier removal mutation");
mutation.Description.ShouldBe("Quantifier \"*?\" was removed at offset 4.");
}
public void ToStringShouldAppendQuestionMarkToChildToString()
{
// Arrange
var characterNode = new CharacterNode('a');
var quantifierNode = new QuantifierStarNode(characterNode);
var target = new LazyNode(quantifierNode);
// Act
var result = target.ToString();
// Assert
result.ShouldBe("a*?");
}
public void SpanShouldStartAfterQuantifier()
{
// Arrange
var childNode = new CharacterNode('a');
var quantifier = new QuantifierStarNode(childNode);
var target = new LazyNode(quantifier);
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(2);
Length.ShouldBe(1);
}
public void QuantifierShouldStartBeforeLazyToken()
{
// Arrange
var childNode = new CharacterNode('a');
var target = new QuantifierStarNode(childNode);
_ = new LazyNode(target);
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(1);
Length.ShouldBe(1);
}
public void ToStringOnLazyNodeWithPrefixShouldReturnPrefixBeforeLazyNodeAndAfterQuantifier()
{
// Arrange
var comment = new CommentGroupNode("This is a comment.");
var characterNode = new CharacterNode('a');
var quantifierNode = new QuantifierStarNode(characterNode);
var target = new LazyNode(quantifierNode)
{
Prefix = comment
};
// Act
var result = target.ToString();
// Assert
result.ShouldBe("a*(?#This is a comment.)?");
}
public void SpanShouldStartAfterPrefix()
{
// Arrange
var childNode = new CharacterNode('a');
var quantifier = new QuantifierStarNode(childNode);
var prefix = new CommentGroupNode("X");
var target = new LazyNode(quantifier)
{
Prefix = prefix
};
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(7);
Length.ShouldBe(1);
}
public void QuantifierShouldStartBeforeLazyTokensPrefix()
{
// Arrange
var childNode = new CharacterNode('a');
var target = new QuantifierStarNode(childNode);
var prefix = new CommentGroupNode("X");
_ = new LazyNode(target)
{
Prefix = prefix
};
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(1);
Length.ShouldBe(1);
}
