package yokohama.unit.ast_junit;

import java.nio.file.Path;
import java.util.Optional;
import lombok.Value;
import yokohama.unit.ast.Position;

@Value
public class Span {
    private final Optional<Path> sourcePath;
    private final Position start;
    private final Position end;
}

@@ -287,12 +287,272 @@
 on end;%0D
+%0A%0D%0A    private static Span dummySpan =%0D%0A            new Span(%0D%0A                    Optional.empty(),%0D%0A                    new Position(-1, -1),%0D%0A                    new Position(-1, -1));%0D%0A    public static Span dummySpan() %7B%0D%0A        return dummySpan;%0D%0A    %7D%0D
 %0A%7D%0D%0A

Add dummySpan static method