dds/utils-tests.rkt

#lang racket

;;; Tests for dds/utils.

(require rackunit "utils.rkt")

(test-case "HashTable Injection"
  (test-case "auto-hash-ref/explicit"
    (let ([mytable #hash((a . 3) (b . 4))])
      (check-equal? (auto-hash-ref/explicit (mytable b a)
                                            (* a b))
                    12))
    (let ([ht #hash((a . #t) (b . #f))])
      (check-equal? (auto-hash-ref/explicit (ht a b)
                                            (and (not a) b))
                    #f)))

  (test-case "auto-hash-ref/:"
    (let ([ht #hash((x . #t) (y . #t) (t . #f))]
          [z #t])
      (check-equal? (auto-hash-ref/: ht
                                     (and :x (not :y) z (or (and :t) :x)))
                    #f))
    (let ([ht #hash((a . 1) (b . 2))])
      (check-equal? (auto-hash-ref/: ht (+ :a (* 2 :b)))
                    5)))

  (test-case "eval-with"
    (check-equal? (let ([ht #hash((a . 1) (b . 1))])
                    (eval-with1 ht '(+ b a 1)))
                  3)))

(test-case "Analysis of quoted expressions"
  (check-equal? (extract-symbols '(1 (2 3) x (y z 3)))
                '(x y z)))