;; This file is part of eris-cl.
;; Copyright (C) 2023 Piotr Szarmański

;; eris-cl is free software: you can redistribute it and/or modify it under the
;; terms of the GNU Lesser General Public License as published by the Free
;; Software Foundation, either version 3 of the License, or (at your option) any
;; later version.

;; eris-cl is distributed in the hope that it will be useful, but WITHOUT ANY
;; WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
;; A PARTICULAR PURPOSE. See the GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License along with
;; eris-cl. If not, see <https://www.gnu.org/licenses/>.

(in-package :eris/test)

(def-suite* parallel-encoding-tests :in eris-tests)

(defmacro with-lp-kernel (threads &body expr )
  `(let ((lparallel:*kernel* (lparallel:make-kernel ,threads)))
     (unwind-protect (progn ,@expr)
       (lparallel:end-kernel))))

(defmacro test-p/file-backend (array &optional (secret null-secret))
  `(let ((tmpdir (make-temporary-dir)))
     (unwind-protect
          (let* ((backend (make-instance 'file-backend :directory tmpdir))
                 (array ,array)
                 (file (merge-pathnames (crypto:byte-array-to-hex-string (crypto:random-data 16)) tmpdir)))
            (with-open-file (f file :direction :output :element-type 'serapeum:octet)
              (write-sequence ,array f))
            (let ((list
                    (list
                    (read-capability-to-octets
                     (store-data array backend :secret ,secret))
                    (read-capability-to-octets
                     (p/store-data array backend :secret ,secret))
                    (read-capability-to-octets
                     (p/store-data file backend :secret ,secret)))))
              (is (apply #'serapeum:equalp* list))))
       (uiop:delete-directory-tree tmpdir :validate t))))


(test simple-parallel-tests
  (with-lp-kernel 2
    (test-p/file-backend (make-octets 1023 :element 1) (make-octets 32 :element 1))
    (test-p/file-backend (make-octets 1025 :element 2) (make-octets 32 :element 2))
    (test-p/file-backend (make-octets 16383 :element 3) (make-octets 32 :element 3))
    (test-p/file-backend (make-octets 16384 :element 4) (make-octets 32 :element 4))
    (test-p/file-backend (make-octets 1 :element 5) (make-octets 32 :element 5))
    (test-p/file-backend (make-octets 16834 :element 5) (make-octets 32 :element 6))
    (test-p/file-backend (make-octets 96000 :element 5) (make-octets 32 :element 7))))

(test simple-parallel-tests2
  (with-lp-kernel 3
    (for-all ((buffer (gen-buffer :length (gen-integer :min 1 :max 130000))))
      (test-p/file-backend buffer))))