public void SpanOnCommentGroupShouldStartAfter()
{
// Arrange
var comment = new CommentGroupNode("This is a comment.");
var a = new CharacterNode('a');
var b = new CharacterNode('b')
{
Prefix = comment
};
var concat = new ConcatenationNode(new List <RegexNode> {
a, b
});
// Act
var(commentStart, commentLength) = comment.GetSpan();
var(aStart, aLength) = a.GetSpan();
var(bStart, bLength) = b.GetSpan();
var(concatStart, concatLength) = concat.GetSpan();
// Assert
concatStart.ShouldBe(0);
concatLength.ShouldBe(a.ToString().Length + b.ToString().Length);
aStart.ShouldBe(0);
aLength.ShouldBe(1);
commentStart.ShouldBe(1);
commentLength.ShouldBe(comment.ToString().Length);
bStart.ShouldBe(commentStart + commentLength);
bLength.ShouldBe(1);
}
public void ToStringOnEmptyCommentGroupShouldReturnQuestionMarkHashtagBetweenParentheses()
{
// Arrange
var target = new CommentGroupNode();
// Act
var result = target.ToString();
// Assert
result.ShouldBe("(?#)");
}
public void GetSpanShouldReturnTupleWithStartEqualToPrefixLengthAndLengthEqualToToStringLength()
{
// Arrange
var target = new CommentGroupNode("This is a comment.");
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(0);
Length.ShouldBe(target.ToString().Length);
}
public void ToStringShouldReturnQuestionMarkHashtagCommentBetweenParentheses()
{
// Arrange
var comment = "This is a comment.";
var target = new CommentGroupNode(comment);
// Act
var result = target.ToString();
// Assert
result.ShouldBe($"(?#{comment})");
}
public void SpanLengthOfConcatenationNodeShouldNotIncludeItsOwnPrefix()
{
// Arrange
var prefix = new CommentGroupNode("Comment");
var target = new ConcatenationNode()
{
Prefix = prefix
};
// Act
var(_, Length) = target.GetSpan();
// Assert
Length.ShouldBe(target.ToString().Length - prefix.ToString().Length);
}
public void ToStringOnCommentGroupWithprefixShouldReturnPrefixBeforeCommentGroup()
{
// Arrange
var comment = new CommentGroupNode("This is a comment.");
var target = new CommentGroupNode("This is the target.")
{
Prefix = comment
};
// Act
var result = target.ToString();
// Assert
result.ShouldBe("(?#This is a comment.)(?#This is the target.)");
}
public void GetSpanShouldReturnTupleWithStartEqualToPrefixLengthAndEqualToToStringLengthMinusPrefixLength()
{
// Arrange
var commentGroup = new CommentGroupNode("X");
var target = new TestRegexNode()
{
Prefix = commentGroup
};
var prefixLength = commentGroup.ToString().Length;
var targetLength = target.ToString().Length;
// Act
var(Start, Length) = target.GetSpan();
// Assert
Start.ShouldBe(prefixLength);
Length.ShouldBe(targetLength - prefixLength);
}
public void GetSpanOnNestedCommentGroupShouldReturnTupleWithStartEqualToPrefixLengthAndLengthEqualToToStringLentgthMinusPrefixLength()
{
// Arrange
var firstComment = new CommentGroupNode("This is the first comment.");
var target = new CommentGroupNode("This is the second comment.")
{
Prefix = firstComment
};
_ = new CharacterNode('a')
{
Prefix = target
};
// Act
var(firstCommentStart, firstCommentLength) = firstComment.GetSpan();
var(secondCommentStart, secondCommentLength) = target.GetSpan();
// Assert
firstCommentStart.ShouldBe(0);
firstCommentLength.ShouldBe(firstComment.ToString().Length);
secondCommentStart.ShouldBe(firstCommentStart + firstCommentLength);
secondCommentLength.ShouldBe(target.ToString().Length - target.Prefix.ToString().Length);
}