This question is rather useless for others, because i failed :D
According to documentation:
$ tracd -p port --auth="BASE_PROJECT_DIR,password_file_path,realm" project_path
I typed project name like this:
tracd -p 8000 --auth="todos,trac-test/swords.txt,trac" trac-test
instead of procect dir name like this:
tracd -p 8000 --auth="trac-test,trac-test/swords.txt,trac" trac-test