public void ToStringShouldReturnBackslashGroupNumber()
{
// Arrange
var target = new BackreferenceNode(5);
// Act
var result = target.ToString();
// Assert
result.ShouldBe(@"\5");
}
public void CopyingBackreferenceNodeShouldCopyOriginalGroupNumberAndGroupNumber()
{
// Arrange
var target = new BackreferenceNode(5);
// Act
// RemoveNode returns a copy of the current node.
var result = target.RemoveNode(new CharacterNode('a'));
// Assert
BackreferenceNode backreferenceNode = result.ShouldBeOfType <BackreferenceNode>();
backreferenceNode.GroupNumber.ShouldBe(target.GroupNumber);
}
public void ToStringOnBackreferenceNodeWithPrefixShouldReturnPrefixBeforeBackreference()
{
// Arrange
var comment = new CommentGroupNode("This is a comment.");
var target = new BackreferenceNode(5)
{
Prefix = comment
};
// Act
var result = target.ToString();
// Assert
result.ShouldBe(@"(?#This is a comment.)\5");
}
