;;;; eval.test --- tests guile's evaluator     -*- scheme -*-
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(use-modules (ice-9 documentation))


;;;
;;; miscellaneous
;;;

(define (documented? object)
  (not (not (object-documentation object))))


;;;
;;; eval
;;;

(with-test-prefix "evaluator"

  (with-test-prefix "memoization"

    (pass-if "transparency"
      (let ((x '(begin 1)))
        (eval x (current-module))
        (equal? '(begin 1) x))))

  (with-test-prefix "symbol lookup"

    (with-test-prefix "top level"

      (with-test-prefix "unbound"

	(pass-if-exception "variable reference"
	  exception:unbound-var
	  x)

	(pass-if-exception "procedure"
	  exception:unbound-var
	  (x)))))

  (with-test-prefix "parameter error"

    ;; This is currently a bug in guile:
    ;; Macros are accepted as function parameters.
    ;; Functions that 'apply' macros are rewritten!!!

    (expect-fail-exception "macro as argument"
      exception:wrong-type-arg
      (let ((f (lambda (p a b) (p a b))))
	(f and #t #t)))

    (expect-fail-exception "passing macro as parameter"
      exception:wrong-type-arg
      (let* ((f (lambda (p a b) (p a b)))
	     (foo (procedure-source f)))
	(f and #t #t)
	(equal? (procedure-source f) foo)))

    ))

;;;
;;; apply
;;;

(with-test-prefix "application"

  (with-test-prefix "wrong number of arguments"

    (pass-if-exception "((lambda () #f) 1)"
      exception:wrong-num-args
      ((lambda () #f) 1))

    (pass-if-exception "((lambda (x) #f))"
      exception:wrong-num-args
      ((lambda (x) #f)))

    (pass-if-exception "((lambda (x) #f) 1 2)"
      exception:wrong-num-args
      ((lambda (x) #f) 1 2))

    (pass-if-exception "((lambda (x y) #f))"
      exception:wrong-num-args
      ((lambda (x y) #f)))

    (pass-if-exception "((lambda (x y) #f) 1)"
      exception:wrong-num-args
      ((lambda (x y) #f) 1))

    (pass-if-exception "((lambda (x y) #f) 1 2 3)"
      exception:wrong-num-args
      ((lambda (x y) #f) 1 2 3))

    (pass-if-exception "((lambda (x . rest) #f))"
      exception:wrong-num-args
      ((lambda (x . rest) #f)))

    (pass-if-exception "((lambda (x y . rest) #f))"
      exception:wrong-num-args
      ((lambda (x y . rest) #f)))

    (pass-if-exception "((lambda (x y . rest) #f) 1)"
      exception:wrong-num-args
      ((lambda (x y . rest) #f) 1))))

;;;
;;; map
;;;

(with-test-prefix "map"

  ;; Is documentation available?

  (expect-fail "documented?"
    (documented? map))

  (with-test-prefix "argument error"

    (with-test-prefix "non list argument"
      #t)

    (with-test-prefix "different length lists"

      (pass-if-exception "first list empty"
	exception:out-of-range
	(map + '() '(1)))

      (pass-if-exception "second list empty"
	exception:out-of-range
	(map + '(1) '()))

      (pass-if-exception "first list shorter"
	exception:out-of-range
	(map + '(1) '(2 3)))

      (pass-if-exception "second list shorter"
	exception:out-of-range
	(map + '(1 2) '(3)))
    )))

;;; eval.test ends here