hash-set/test.lisp at master · samebchase/hash-set · GitHub

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(defpackage #:hash-set-test
  (:use #:cl
        #:fiveam
        #:hash-set))

(in-package :hash-set-test)

(def-suite all-tests)

(in-suite all-tests)

(test sanity
  (is (= 2 2)))

(test hs-memberp
  (let ((hash-set (make-hash-set)))
    (hs-ninsert hash-set 42)
    (is (hs-memberp hash-set 42))))

(test hs-insert-count
  (let ((hash-set (make-hash-set)))
    (hs-insert hash-set 42)
    (is (= (hs-count hash-set) 0))))

(test hs-ninsert-count
  (let ((hash-set (make-hash-set)))
    (loop repeat 3 do
         (dotimes (i 10)
           (hs-ninsert hash-set i)))
    (is (= 10 (hs-count hash-set)))))

(test hs-insert
  (is (hs-memberp (hs-insert (make-hash-set) 1984) 1984)))

(test hs-ninsert
  (let ((hash-set (list-to-hs '(1 2 3 4))))
    (hs-ninsert hash-set 5)
    (is (hs-equal hash-set
                  (list-to-hs '(1 2 3 4 5))))))

(test hs-remove-count
  (let ((hash-set (list-to-hs '(1 2 3 4 5))))
    (hs-remove hash-set 4)
    (is (= 5 (hs-count hash-set)))))

(test hs-nremove-count
  (let ((hash-set (make-hash-set)))
    (dotimes (i 100)
      (hs-ninsert hash-set i))
    (loop for i from 10 below 20 do
         (hs-nremove hash-set i))
    (hs-ninsert hash-set 15)
    (hs-nremove hash-set 15)
    (is (= 90 (hs-count hash-set)))))

(test hs-remove
  (let ((hs-contains-15 (hs-insert (make-hash-set) 15)))
    (hs-remove hs-contains-15 15)
    (is (hs-memberp hs-contains-15 15))))

(test hs-nremove
  (let ((hash-set (list-to-hs '(1 2 3 4))))
    (hs-nremove hash-set 3)
    (is (hs-equal hash-set
                  (list-to-hs '(1 2 4))))))

(test hs-remove-if
  (let ((hash-set (list-to-hs (alexandria:iota 10))))
    (is (hs-equal (hs-remove-if (lambda (x) (> x 5)) hash-set)
                  (list-to-hs (alexandria:iota 6))))
    (is (= (hs-count hash-set) 10))))

(test hs-nremove-if
  (let ((hash-set (list-to-hs (alexandria:iota 10))))
    (hs-nremove-if #'evenp hash-set)
    (is (hs-equal hash-set
                  (list-to-hs (alexandria:iota 5 :start 1 :step 2))))))

(test hs-remove-if-not
  (let ((hash-set (list-to-hs (alexandria:iota 10))))
    (is (hs-equal (hs-remove-if-not (lambda (x) (> x 5)) hash-set)
                  (list-to-hs (alexandria:iota 4 :start 6))))
    (is (= (hs-count hash-set) 10))))

(test hs-nremove-if-not
  (let ((hash-set (list-to-hs (alexandria:iota 10))))
    (hs-nremove-if-not #'oddp hash-set)
    (is (hs-equal hash-set
                  (list-to-hs (alexandria:iota 5 :start 1 :step 2))))))

(test hs-equality
  (let* ((hs-a (list-to-hs (alexandria:iota 10)))
         (hs-b (list-to-hs (alexandria:iota 10)))
         (hs-c (list-to-hs (alexandria:iota 20)))
         (hs-d (list-to-hs (alexandria:iota 10 :start 10)))
         (hs-e (list-to-hs '(a b c d e)))
         (hs-f (list-to-hs '(e d c b a)))
         (hs-a-copy (hs-copy hs-a)))
    (is (hs-equal hs-a hs-b))
    (is (hs-equal hs-e hs-f))
    (is-false (hs-equal hs-b hs-c))
    (is-false (hs-equal hs-c hs-d))
    (is (hs-equal hs-a hs-a-copy))))

(test hs-any
  (is (hs-any #'evenp (list-to-hs '(1 3 4 5))))
  (is-false (hs-any #'zerop (list-to-hs '(1 3 4 5)))))

(test hs-all
  (is (hs-all #'evenp (list-to-hs (alexandria:iota 5 :step 2))))
  (is-false (hs-all #'evenp (list-to-hs '(2 4 6 8 10 12 13)))))

(test hs-map
  (is (hs-equal (hs-map (lambda (x) (* x x)) (list-to-hs '(1 2 3 4)))
                (list-to-hs (mapcar (lambda (x) (* x x)) '(1 2 3 4))))))

(test hs-filter
  (is (hs-equal (hs-filter (lambda (x) (< x 3)) (list-to-hs (alexandria:iota 5)))
                (list-to-hs '(0 1 2))))
  (is (hs-equal (hs-filter #'evenp (list-to-hs (alexandria:iota 10)))
                (hs-remove-if #'oddp (list-to-hs (alexandria:iota 10))))))

(test hs-union
  (is (hs-equal (hs-union (list-to-hs ())
                          (list-to-hs ()))
                (list-to-hs ())))
  (is (hs-equal (hs-union (list-to-hs '(0 1 2 3))
                          (list-to-hs '(4 5 6 7)))
                (list-to-hs (alexandria:iota 8)))))

(test hs-nunion
  (let ((hs-a (list-to-hs '(1 2 3)))
        (hs-b (list-to-hs '(4 5 6))))
    (hs-nunion hs-a hs-b)
    (is (hs-equal hs-a
                  (list-to-hs (alexandria:iota 6 :start 1))))))


(test hs-intersection
  (is (hs-equal (hs-intersection (list-to-hs '(1 2 3 4))
                                 (list-to-hs '(3 4 5 6)))
                (list-to-hs '(3 4))))
  (is (hs-equal (hs-intersection (list-to-hs '(1 2 3))
                                 (list-to-hs '(4 5 6)))
                (list-to-hs ()))))

(test hs-nintersection
  (let ((hs-a (list-to-hs '(1 2 3 4)))
        (hs-b (list-to-hs '(3 4 5 6))))
    (hs-nintersection hs-a hs-b)
    (is (hs-equal hs-a
                  (list-to-hs '(3 4))))))

(test hs-difference
  (let ((hs-a (list-to-hs (alexandria:iota 15))))
    (is (hs-equal
         (hs-difference hs-a (list-to-hs '(10 11 12 13 14)))
         (list-to-hs (alexandria:iota 10))))))

(test hs-ndifference
  (let ((hs-a (list-to-hs '(1 2 3 4)))
        (hs-b (list-to-hs '(3 4 5 6))))
    (hs-ndifference hs-a hs-b)
    (is (hs-equal hs-a
                  (list-to-hs '(1 2))))))

(test hs-symmetric-difference
  (is (hs-equal (list-to-hs (alexandria:iota 6 :start 1))
                (hs-symmetric-difference (list-to-hs '(1 2 3))
                                         (list-to-hs '(4 5 6))))))

(test hs-cartesian-product
  (is (hs-equal
       (hs-cartesian-product
        (list-to-hs (alexandria:iota 10))
        (list-to-hs (alexandria:iota 10)))
       (list-to-hs (loop for i below 10
                      appending
                        (loop for j below 10
                           collect (list i j)))))))

(test hs-subsetp
  (is-false (hs-subsetp (list-to-hs '(6 7 8 9 10))
                        (list-to-hs '(6 7 8 9))))
  (is (hs-subsetp (list-to-hs '(1 2 3 4))
                  (list-to-hs '(1 2 3 4 5))))
  (is (hs-subsetp (list-to-hs '(4 5 6 7))
                  (list-to-hs '(4 5 6 7)))))

(test hs-proper-subsetp
  (is-false (hs-proper-subsetp (list-to-hs '(6 7 8 9 10))
                               (list-to-hs '(6 7 8 9))))
  (is (hs-proper-subsetp (list-to-hs '(1 2 3 4))
                         (list-to-hs '(1 2 3 4 5))))
  (is-false (hs-proper-subsetp (list-to-hs '(4 5 6 7))
                               (list-to-hs '(4 5 6 7)))))

(test hs-supersetp
  (is-false (hs-supersetp (list-to-hs '(6 7 8 9))
                          (list-to-hs '(6 7 8 9 10))))
  (is (hs-supersetp (list-to-hs '(1 2 3 4 5))
                    (list-to-hs '(1 2 3 4))))
  (is (hs-supersetp (list-to-hs '(4 5 6 7))
                    (list-to-hs '(4 5 6 7)))))

(test hs-proper-supersetp
  (is-false (hs-proper-supersetp (list-to-hs '(6 7 8 9))
                                 (list-to-hs '(6 7 8 9 10))))
  (is (hs-proper-supersetp (list-to-hs '(1 2 3 4 5))
                           (list-to-hs '(1 2 3 4))))
  (is-false (hs-proper-supersetp (list-to-hs '(4 5 6 7))
                                 (list-to-hs '(4 5 6 7)))))

(test hs-powerset
  ;; This is clunky but equal comparison fails on hash-sets...
  ;; Really we need the underlying hash-table to use hs-equal.
  ;; But for now, break out the inner sets to lists that work with equal comparison
  (is (hs-equal (list-to-hs (sort  (mapcar (lambda (lst) (sort lst #'<))(mapcar #'hs-to-list (hs-to-list (hs-powerset (hs 1 2 3))))) #'< :key #'length))
                (list-to-hs '(NIL (1) (2) (1 2) (3) (1 3) (2 3) (1 2 3)))))


  (is (hs-equal (list-to-hs (mapcar #'hs-to-list (hs-to-list (hs-powerset (hs)))))
                (list-to-hs '(())))))

(test hs-pop
  (flet ((check-pop (old-set new-set value)
           (is (hs-memberp old-set value))
           (is (not (hs-memberp new-set value)))
           (is (= 1
                  (- (hs-count old-set)
                     (hs-count new-set))))))
    (let* ((original (hs 1 2 3 4 5))
           (original-size (hs-count original)))
      (loop
        :with popped-value :and new-set
        :for current-set = original :then new-set
        :until (zerop (hs-count current-set))
        :do (setf (values popped-value new-set) (hs-pop current-set))
            (check-pop current-set new-set popped-value))
      (is (= original-size (hs-count original))))

    (let ((original (hs 1 2 3 4 5)))
      (loop
        :with current-set = original
        :until (zerop (hs-count current-set))
        :do (hs-npop current-set))
      (is (zerop (hs-count original))))))

(test hash-table-hash-set-conversions
  (let ((hash-table (make-hash-table))
        (keys '(:one :two :three :four))
        (values '(1 2 3 4))
        (tuple-set (make-hash-set)))

    (loop :for key :in keys
          :for value :in values
          :do (setf (gethash key hash-table) value)
              (hs-ninsert tuple-set (cons key value)))

    (is (hs-equal (list-to-hs keys)
                  (hash-keys-to-set hash-table)))

    (is (hs-equal (list-to-hs values)
                  (hash-values-to-set hash-table)))

    (is (hs-equal (hash-table-to-set hash-table)
                  tuple-set))))