;; This file is part of eris-cl.
;; Copyright (C) 2022 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-tests :in eris-tests)

(defmacro assert-parallel-decode (array block-size)
  `(uiop:with-temporary-file (:stream output-file :pathname pathname :direction :io)
     (let* ((*table* (make-hash-table :test #'equalp))
            (array ,array)
            (read-capability (eris-encode array ,block-size #'hashtable-encode)))
       (eris-decode-parallel read-capability #'hashtable-decode pathname
                                  :initial-bindings (acons '*table* *table* bordeaux-threads:*default-special-bindings*)
                                  :threads 4)
       (is (equalp array
                   (alexandria:read-stream-content-into-byte-vector output-file))))))

(test simple-parallel-decode
  (assert-parallel-decode (make-octets 4096 :element 101) 1024)
  (assert-parallel-decode (make-octets 4095 :element 102) 1024)
  (assert-parallel-decode (make-octets 18000 :element 103) 1024)
  (assert-parallel-decode (make-octets 128000 :element 104) 32768)
  (assert-parallel-decode (make-octets 131071 :element 104) 32768)
  (assert-parallel-decode (make-octets 131072 :element 104) 32768)
  (assert-parallel-decode (make-octets 131073 :element 104) 32768))