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(import (scheme base)
(only (csc format)
sprintf)
(only (csc loop)
loop
return)
(only (csc sort) sort)
(only (csc testing)
assert-equal
assert-raises
test)
(csc hash-map))
(define (alist->map->alist l)
(map->alist (alist->map compare-symbols l)))
(test map->alist-singleton
(assert-equal
'((a . 1))
(alist->map->alist '((a . 1)))))
(test map->alist-two
(assert-equal
'((a . 1) (b . 2))
(alist->map->alist '((a . 1) (b . 2))))
(test map->alist-longer
(assert-equal
'((a . 1) (b . 2) (c . 3) (d . 4) (e . 5) (f . 6))
(alist->map->alist '((a . 1) (b . 2) (c . 3) (d . 4) (e . 5) (f . 6))))))
(test map->alist-larger
(assert-equal
'((f . 5) (m . 1) (n . 7) (q . 3) (x . 8))
(alist->map->alist '((m . 1) (n . 2) (q . 3) (f . 5) (n . 7) (x . 8)))))
(test map->alist-in-order
(assert-equal
'((a . ()) (b . ()) (c . ()) (d . ()) (e . ()) (f . ()) (g . ()) (h . ()))
(alist->map->alist '((a . ()) (b . ()) (c . ()) (d . ()) (e . ()) (f . ()) (g . ()) (h . ())))))
(test map->alist-reversed
(assert-equal
'((h . ()) (g . ()) (f . ()) (e . ()) (d . ()) (c . ()) (b . ()) (a . ()))
(alist->map->alist '((a . ()) (b . ()) (c . ()) (d . ()) (e . ()) (f . ()) (g . ()) (h . ())))))
(test map->alist-overwrite
(assert-equal
'((a . 2))
(alist->map->alist '((a . 1) (a . 2)))))
(test map->alist-alternating
(assert-equal
'((h . ()) (g . ()) (i . ()) (f . ()) (j . ()) (e . ()) (k . ()) (d . ()) (l . ()) (c . ()))
(alist->map->alist '((c . ()) (d . ()) (e . ()) (f . ()) (g . ()) (h . ()) (i . ()) (j . ()) (k . ()) (l . ())))))
(test lookup
(assert-equal
2
(lookup (alist->map compare-symbols '((a . 1) (b . 2) (c . 3))) 'b)))
(test lookup-notfound
(assert-raises key-not-found-error?
(lookup (alist->map compare-symbols '((a . 1) (b . 2) (c . 3))) 'd)))
(test lookup-default
(assert-equal
#f
(lookup (alist->map compare-symbols '((a . #t) (b . #t))) 'c #f)))
(define transform-map
(list
(cons map? map->alist)))
(define (test-map . bindings)
(alist->map compare-symbols bindings))
(test merge
(assert-equal
'((a . 1) (b . 2) (c . 3) (d . 4))
(merge
(test-map '(a . 1) '(b . 2))
(test-map '(c . 3) '(d . 4)))
transform-map))
(test delete
(assert-equal
'((a . 1) (b . 2) (d . 4))
(delete
(test-map '(a . 1) '(b . 2) '(c . 3) '(d . 4))
'c)
transform-map))
(test delete-only
(assert-equal
'()
(delete
(test-map '(a . 1))
'a)
transform-map))
(test delete-first
(assert-equal
'((b . 2) (c . 3) (d . 4))
(delete
(test-map '(a . 1) '(b . 2) '(c . 3) '(d . 4))
'a)
transform-map))
(test delete-last
(assert-equal
'((a . 1) (b . 2) (c . 3))
(delete
(test-map '(a . 1) '(b . 2) '(c . 3) '(d . 4))
'd)
transform-map))
(test delete-many
(assert-equal
'()
(loop with m = (loop with m = (test-map)
for i from 1 to 100
do (set! m (insert m (string->symbol (sprintf "key{}" i)) i))
finally (return m))
for i from 1 to 100
do (set! m (delete m (string->symbol (sprintf "key{}" i))))
finally (return m))
transform-map))
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