;;;; streams.test --- test Guile ice-9 streams module -*- scheme -*-
;;;;
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(define-module (test-suite test-streams)
  :use-module (test-suite lib)
  :use-module (ice-9 streams))


;;;
;;; stream-for-each
;;;

(with-test-prefix "stream-for-each"

  (with-test-prefix "1 streams"

    (pass-if "empty"
      (let ((lst '()))
	(stream-for-each (lambda (x)
			   (set! lst (cons x lst)))
			 (list->stream '()))
	(equal? '() lst)))

    (pass-if "123"
      (let ((lst '()))
	(stream-for-each (lambda (x)
			   (set! lst (cons x lst)))
			 (list->stream '(1 2 3)))
	(equal? '(3 2 1) lst))))

  (with-test-prefix "2 streams"

    (pass-if "empty empty"
      (let ((lst '()))
	(stream-for-each (lambda (x y)
			   (set! lst (cons* x y lst)))
			 (list->stream '())
			 (list->stream '()))
	(equal? '() lst)))

    (pass-if "123 456"
      (let ((lst '()))
	(stream-for-each (lambda (x y)
			   (set! lst (cons* x y lst)))
			 (list->stream '(1 2 3))
			 (list->stream '(4 5 6)))
	(equal? '(3 6 2 5 1 4) lst)))

    (pass-if "12 456"
      (let ((lst '()))
	(stream-for-each (lambda (x y)
			   (set! lst (cons* x y lst)))
			 (list->stream '(1 2))
			 (list->stream '(4 5 6)))
	(equal? '(2 5 1 4) lst)))

    (pass-if "123 45"
      (let ((lst '()))
	(stream-for-each (lambda (x y)
			   (set! lst (cons* x y lst)))
			 (list->stream '(1 2 3))
			 (list->stream '(4 5)))
	(equal? '(2 5 1 4) lst)))))