(defpackage :aoc/2024/19/tests
            (:use :cl :aoc :aoc/tests :aoc/2024/tests :parachute :aoc/2024/19))

(in-package :aoc/2024/19/tests)

(define-test suite-2024-19
                                        ;:parent suite-2024
  )

(define-test test-possible-patterns
  :parent suite-2024-19
  (reset-patterns)
  (let ((tt  (onsen-towels sample-data)))
    (is = 0 (possible-patterns tt "z"))
    (is = 1 (possible-patterns tt "r"))
    (is = 2 (possible-patterns tt "rb"))
    (is = 0 (possible-patterns tt "bw"))
    (is = 2 (possible-patterns tt "gbb"))
    
    ;;brwrr can be made with a br towel, then a wr towel, and then finally an r towel.
    (is = 2 (possible-patterns tt "brwrr"))
    ;;bggr can be made with a b towel, two g towels, and then an r towel.
    (is = 1 (possible-patterns tt "bggr"))
    ;; gbbr can be made with a gb towel and then a br towel.
    (is = 4 (possible-patterns tt "gbbr"))
    ;; rrbgbr can be made with r, rb, g, and br.
    (is = 6 (possible-patterns tt "rrbgbr"))
    ;; ubwu is impossible.
    (is = 0 (possible-patterns tt "ubwu"))
    ;; bwurrg can be made with bwu, r, r, and g.
    (is = 1 (possible-patterns tt "bwurrg"))
    ;; brgr can be made with br, g, and r.
    (is = 2 (possible-patterns tt "brgr"))
    ;; bbrgwb is impossible.
    (is = 0 (possible-patterns tt "bbrgwb")))

  )

(define-test+run test-part1
  :parent suite-2024-19
  (reset-patterns)
  (is equal "6" (part1 sample-data)))

(define-test+run test-part2
  :parent suite-2024-19
  (reset-patterns)
  (is equal "16" (part2 sample-data)))

(defun run-tests ()
  (test 'suite-2024-19))