public void ShouldRemoveQuantifierN()
{
// Arrange
var quantifierNode = new QuantifierNNode(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 MutateShouldNotMutateNonQuantifierNode()
{
// Arrange
var characterNode = new CharacterNode('a');
var rootNode = new ConcatenationNode(characterNode);
var target = new QuantifierRemovalMutator();
// Act
var result = target.Mutate(characterNode, rootNode);
// Assert
result.ShouldBeEmpty();
}
