(define-library (srfi 128 test)
(export run-tests)
(import (scheme base) (srfi 128) (chibi test))
(begin
(define degenerate-comparator (make-comparator (lambda (x) #t) equal? #f #f))
(define bool-pair-comparator
(make-pair-comparator boolean-comparator boolean-comparator))
(define num-list-comparator
(make-list-comparator real-comparator list? null? car cdr))
(define num-vector-comparator
(make-vector-comparator real-comparator vector? vector-length vector-ref))
(define (vector-cdr vec)
(let* ((len (vector-length vec))
(result (make-vector (- len 1))))
(let loop ((n 1))
(cond
((= n len) result)
(else (vector-set! result (- n 1) (vector-ref vec n))
(loop (+ n 1)))))))
(define vector-qua-list-comparator
(make-list-comparator
real-comparator
vector?
(lambda (vec) (= 0 (vector-length vec)))
(lambda (vec) (vector-ref vec 0))
vector-cdr))
(define list-qua-vector-comparator
(make-vector-comparator default-comparator list? length list-ref))
(define symbol-comparator
(make-comparator
symbol?
eq?
(lambda (a b) (string<? (symbol->string a) (symbol->string b)))
symbol-hash))
(define (run-tests)
(test-group "srfi-128: comparators"
(test '#(2 3 4) (vector-cdr '#(1 2 3 4)))
(test '#() (vector-cdr '#(1)))
(test-group "comparators/predicates"
(test-assert (comparator? real-comparator))
(test-assert (not (comparator? =)))
(test-assert (comparator-ordered? real-comparator))
(test-assert (comparator-hashable? real-comparator))
(test-assert (not (comparator-ordered? degenerate-comparator)))
(test-assert (not (comparator-hashable? degenerate-comparator)))
) ; end comparators/predicates
(test-group "comparators/constructors"
(test-assert (=? boolean-comparator #t #t))
(test-assert (not (=? boolean-comparator #t #f)))
(test-assert (<? boolean-comparator #f #t))
(test-assert (not (<? boolean-comparator #t #t)))
(test-assert (not (<? boolean-comparator #t #f)))
(test-assert (comparator-test-type bool-pair-comparator '(#t . #f)))
(test-assert (not (comparator-test-type bool-pair-comparator 32)))
(test-assert (not (comparator-test-type bool-pair-comparator '(32 . #f))))
(test-assert (not (comparator-test-type bool-pair-comparator '(#t . 32))))
(test-assert (not (comparator-test-type bool-pair-comparator '(32 . 34))))
(test-assert (=? bool-pair-comparator '(#t . #t) '(#t . #t)))
(test-assert (not (=? bool-pair-comparator '(#t . #t) '(#f . #t))))
(test-assert (not (=? bool-pair-comparator '(#t . #t) '(#t . #f))))
(test-assert (<? bool-pair-comparator '(#f . #t) '(#t . #t)))
(test-assert (<? bool-pair-comparator '(#t . #f) '(#t . #t)))
(test-assert (not (<? bool-pair-comparator '(#t . #t) '(#t . #t))))
(test-assert (not (<? bool-pair-comparator '(#t . #t) '(#f . #t))))
(test-assert (not (<? bool-pair-comparator '(#f . #t) '(#f . #f))))
(test-assert (comparator-test-type num-vector-comparator '#(1 2 3)))
(test-assert (comparator-test-type num-vector-comparator '#()))
(test-assert (not (comparator-test-type num-vector-comparator 1)))
(test-assert (not (comparator-test-type num-vector-comparator '#(a 2 3))))
(test-assert (not (comparator-test-type num-vector-comparator '#(1 b 3))))
(test-assert (not (comparator-test-type num-vector-comparator '#(1 2 c))))
(test-assert (=? num-vector-comparator '#(1 2 3) '#(1 2 3)))
(test-assert (not (=? num-vector-comparator '#(1 2 3) '#(4 5 6))))
(test-assert (not (=? num-vector-comparator '#(1 2 3) '#(1 5 6))))
(test-assert (not (=? num-vector-comparator '#(1 2 3) '#(1 2 6))))
(test-assert (<? num-vector-comparator '#(1 2) '#(1 2 3)))
(test-assert (<? num-vector-comparator '#(1 2 3) '#(2 3 4)))
(test-assert (<? num-vector-comparator '#(1 2 3) '#(1 3 4)))
(test-assert (<? num-vector-comparator '#(1 2 3) '#(1 2 4)))
(test-assert (<? num-vector-comparator '#(3 4) '#(1 2 3)))
(test-assert (not (<? num-vector-comparator '#(1 2 3) '#(1 2 3))))
(test-assert (not (<? num-vector-comparator '#(1 2 3) '#(1 2))))
(test-assert (not (<? num-vector-comparator '#(1 2 3) '#(0 2 3))))
(test-assert (not (<? num-vector-comparator '#(1 2 3) '#(1 1 3))))
(test-assert (not (<? vector-qua-list-comparator '#(3 4) '#(1 2 3))))
(test-assert (<? list-qua-vector-comparator '(3 4) '(1 2 3)))
(let ((bool-pair (cons #t #f))
(bool-pair-2 (cons #t #f))
(reverse-bool-pair (cons #f #t)))
(test-assert (=? eq-comparator #t #t))
(test-assert (not (=? eq-comparator #f #t)))
(test-assert (=? eqv-comparator bool-pair bool-pair))
(test-assert (not (=? eqv-comparator bool-pair bool-pair-2)))
(test-assert (=? equal-comparator bool-pair bool-pair-2))
(test-assert (not (=? equal-comparator bool-pair reverse-bool-pair))))
) ; end comparators/constructors
(test-group "comparators/hash"
(test-assert (exact-integer? (boolean-hash #f)))
(test-assert (not (negative? (boolean-hash #t))))
(test-assert (exact-integer? (char-hash #\a)))
(test-assert (not (negative? (char-hash #\b))))
(test-assert (exact-integer? (char-ci-hash #\a)))
(test-assert (not (negative? (char-ci-hash #\b))))
(test-assert (= (char-ci-hash #\a) (char-ci-hash #\A)))
(test-assert (exact-integer? (string-hash "f")))
(test-assert (not (negative? (string-hash "g"))))
(test-assert (exact-integer? (string-ci-hash "f")))
(test-assert (not (negative? (string-ci-hash "g"))))
(test-assert (= (string-ci-hash "f") (string-ci-hash "F")))
(test-assert (exact-integer? (symbol-hash 'f)))
(test-assert (not (negative? (symbol-hash 't))))
(test-assert (exact-integer? (number-hash 3)))
(test-assert (not (negative? (number-hash 3))))
(test-assert (exact-integer? (number-hash -3)))
(test-assert (not (negative? (number-hash -3))))
(test-assert (exact-integer? (number-hash 3.0)))
(test-assert (not (negative? (number-hash 3.0))))
(test-assert (exact-integer? (number-hash 3.47)))
(test-assert (not (negative? (number-hash 3.47))))
(test-assert (exact-integer? (default-hash '())))
(test-assert (not (negative? (default-hash '()))))
(test-assert (exact-integer? (default-hash '(a "b" #\c #(dee) 2.718))))
(test-assert (not (negative? (default-hash '(a "b" #\c #(dee) 2.718)))))
(test-assert (exact-integer? (default-hash '#u8())))
(test-assert (not (negative? (default-hash '#u8()))))
(test-assert (exact-integer? (default-hash '#u8(8 6 3))))
(test-assert (not (negative? (default-hash '#u8(8 6 3)))))
(test-assert (exact-integer? (default-hash '#())))
(test-assert (not (negative? (default-hash '#()))))
(test-assert (exact-integer? (default-hash '#(a "b" #\c #(dee) 2.718))))
(test-assert (not (negative? (default-hash '#(a "b" #\c #(dee) 2.718)))))
) ; end comparators/hash
(test-group "comparators/default"
(test-assert (<? default-comparator '() '(a)))
(test-assert (not (=? default-comparator '() '(a))))
(test-assert (=? default-comparator #t #t))
(test-assert (not (=? default-comparator #t #f)))
(test-assert (<? default-comparator #f #t))
(test-assert (not (<? default-comparator #t #t)))
(test-assert (=? default-comparator #\a #\a))
(test-assert (<? default-comparator #\a #\b))
(test-assert (=? default-comparator 1 1))
(test-assert (=? default-comparator 1 1.0))
(test-assert (comparator-test-type default-comparator '()))
(test-assert (comparator-test-type default-comparator #t))
(test-assert (comparator-test-type default-comparator #\t))
(test-assert (comparator-test-type default-comparator '(a)))
(test-assert (comparator-test-type default-comparator 'a))
(test-assert (comparator-test-type default-comparator (make-bytevector 10)))
(test-assert (comparator-test-type default-comparator 10))
(test-assert (comparator-test-type default-comparator 10.0))
(test-assert (comparator-test-type default-comparator "10.0"))
(test-assert (comparator-test-type default-comparator '#(10)))
(test-assert (=? default-comparator '(#t . #t) '(#t . #t)))
(test-assert (not (=? default-comparator '(#t . #t) '(#f . #t))))
(test-assert (not (=? default-comparator '(#t . #t) '(#t . #f))))
(test-assert (<? default-comparator '(#f . #t) '(#t . #t)))
(test-assert (<? default-comparator '(#t . #f) '(#t . #t)))
(test-assert (not (<? default-comparator '(#t . #t) '(#t . #t))))
(test-assert (not (<? default-comparator '(#t . #t) '(#f . #t))))
(test-assert (not (<? default-comparator '#(#f #t) '#(#f #f))))
(test-assert (=? default-comparator '#(#t #t) '#(#t #t)))
(test-assert (not (=? default-comparator '#(#t #t) '#(#f #t))))
(test-assert (not (=? default-comparator '#(#t #t) '#(#t #f))))
(test-assert (<? default-comparator '#(#f #t) '#(#t #t)))
(test-assert (<? default-comparator '#(#t #f) '#(#t #t)))
(test-assert (not (<? default-comparator '#(#t #t) '#(#t #t))))
(test-assert (not (<? default-comparator '#(#t #t) '#(#f #t))))
(test-assert (not (<? default-comparator '#(#f #t) '#(#f #f))))
(test-assert (= (comparator-hash default-comparator #t) (boolean-hash #t)))
(test-assert (= (comparator-hash default-comparator #\t) (char-hash #\t)))
(test-assert (= (comparator-hash default-comparator "t") (string-hash "t")))
(test-assert (= (comparator-hash default-comparator 't) (symbol-hash 't)))
(test-assert (= (comparator-hash default-comparator 10) (number-hash 10)))
(test-assert (= (comparator-hash default-comparator 10.0) (number-hash 10.0)))
(comparator-register-default!
(make-comparator procedure? (lambda (a b) #t) (lambda (a b) #f) (lambda (obj) 200)))
(test-assert (=? default-comparator (lambda () #t) (lambda () #f)))
(test-assert (not (<? default-comparator (lambda () #t) (lambda () #f))))
;;(test 200 (comparator-hash default-comparator (lambda () #t)))
) ; end comparators/default
;; SRFI 128 does not actually require a comparator's four procedures
;; to be eq? to the procedures originally passed to make-comparator.
;; For interoperability/interchangeability between the comparators
;; of SRFI 114 and SRFI 128, some of the procedures passed to
;; make-comparator may need to be wrapped inside another lambda
;; expression before they're returned by the corresponding accessor.
;;
;; So this next group of tests is incorrect, hence commented out
;; and replaced by a slightly less naive group of tests.
#;
(test-group "comparators/accessors"
(define ttp (lambda (x) #t))
(define eqp (lambda (x y) #t))
(define orp (lambda (x y) #t))
(define hf (lambda (x) 0))
(define comp (make-comparator ttp eqp orp hf))
(test ttp (comparator-type-test-predicate comp))
(test eqp (comparator-equality-predicate comp))
(test orp (comparator-ordering-predicate comp))
(test hf (comparator-hash-function comp))
) ; end comparators/accessors
(test-group "comparators/accessors"
(define x1 0)
(define x2 0)
(define x3 0)
(define x4 0)
(define ttp (lambda (x) (set! x1 111) #t))
(define eqp (lambda (x y) (set! x2 222) #t))
(define orp (lambda (x y) (set! x3 333) #t))
(define hf (lambda (x) (set! x4 444) 0))
(define comp (make-comparator ttp eqp orp hf))
(test #t (and ((comparator-type-test-predicate comp) x1) (= x1 111)))
(test #t (and ((comparator-equality-predicate comp) x1 x2) (= x2 222)))
(test #t (and ((comparator-ordering-predicate comp) x1 x3) (= x3 333)))
(test #t (and (zero? ((comparator-hash-function comp) x1)) (= x4 444)))
) ; end comparators/accessors
(test-group "comparators/invokers"
(test-assert (comparator-test-type real-comparator 3))
(test-assert (comparator-test-type real-comparator 3.0))
(test-assert (not (comparator-test-type real-comparator "3.0")))
(test-assert (comparator-check-type boolean-comparator #t))
(test-error (comparator-check-type boolean-comparator 't))
) ; end comparators/invokers
(test-group "comparators/comparison"
(test-assert (=? real-comparator 2 2.0 2))
(test-assert (<? real-comparator 2 3.0 4))
(test-assert (>? real-comparator 4.0 3.0 2))
(test-assert (<=? real-comparator 2.0 2 3.0))
(test-assert (>=? real-comparator 3 3.0 2))
(test-assert (not (=? real-comparator 1 2 3)))
(test-assert (not (<? real-comparator 3 1 2)))
(test-assert (not (>? real-comparator 1 2 3)))
(test-assert (not (<=? real-comparator 4 3 3)))
(test-assert (not (>=? real-comparator 3 4 4.0)))
) ; end comparators/comparison
(test-group "comparators/syntax"
(test 'less (comparator-if<=> real-comparator 1 2 'less 'equal 'greater))
(test 'equal (comparator-if<=> real-comparator 1 1 'less 'equal 'greater))
(test 'greater (comparator-if<=> real-comparator 2 1 'less 'equal 'greater))
(test 'less (comparator-if<=> "1" "2" 'less 'equal 'greater))
(test 'equal (comparator-if<=> "1" "1" 'less 'equal 'greater))
(test 'greater (comparator-if<=> "2" "1" 'less 'equal 'greater))
) ; end comparators/syntax
(test-group "comparators/bound-salt"
(test-assert (exact-integer? (hash-bound)))
(test-assert (exact-integer? (hash-salt)))
(test-assert (< (hash-salt) (hash-bound)))
#; (test (hash-salt) (fake-salt-hash #t)) ; no such thing as fake-salt-hash
) ; end comparators/bound-salt
(test-group "comparators/min-max"
(test 5 (comparator-max real-comparator 1 5 3 2 -2))
(test -2 (comparator-min real-comparator 1 5 3 2 -2))
(test 5 (comparator-max-in-list real-comparator '(1 5 3 2 -2)))
(test -2 (comparator-min-in-list real-comparator '(1 5 3 2 -2)))
) ; end comparators/min-max
(test-group "comparators/variables"
;; Most of the variables have been tested above.
(test-assert (=? char-comparator #\C #\C))
(test-assert (=? char-ci-comparator #\c #\C))
(test-assert (=? string-comparator "ABC" "ABC"))
(test-assert (=? string-ci-comparator "abc" "ABC"))
(test-assert (=? eq-comparator 32 32))
(test-assert (=? eqv-comparator 32 32))
(test-assert (=? equal-comparator "ABC" "ABC"))
) ; end comparators/variables
)))) ; end comparators