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brag/tests/test-simple-line-drawing.rkt

75 lines
2.5 KiB
Racket

#lang racket/base
(module+ test
(require yaragg/examples/simple-line-drawing
yaragg/support
racket/list
yaragg/parser-tools/lex
(prefix-in : yaragg/parser-tools/lex-sre)
rackunit)
(define (make-tokenizer ip)
(port-count-lines! ip)
(define lex (lexer-src-pos
[(:+ numeric)
(token 'INTEGER (string->number lexeme))]
[upper-case
(token 'STRING lexeme)]
["b"
(token 'STRING " ")]
[";"
(token ";" lexeme)]
[whitespace
(token 'WHITESPACE lexeme #:skip? #t)]
[(eof)
(void)]))
(lambda ()
(lex ip)))
(define the-parsed-object-stx
(parse (make-tokenizer (open-input-string #<<EOF
3 9 X;
6 3 b 3 X 3 b;
3 9 X;
EOF
))))
(check-true (syntax-original? the-parsed-object-stx))
;; Does the rule name "drawing" also have the proper "original?" property set?
(check-true (syntax-original? (first (syntax->list the-parsed-object-stx))))
(check-equal? (syntax->datum the-parsed-object-stx)
'(drawing (rows (repeat 3) (chunk 9 "X") ";")
(rows (repeat 6) (chunk 3 " ") (chunk 3 "X") (chunk 3 " ") ";")
(rows (repeat 3) (chunk 9 "X") ";")))
(define the-parsed-object (syntax->list the-parsed-object-stx))
(check-equal? (syntax-line the-parsed-object-stx) 1)
(check-equal? (syntax-column the-parsed-object-stx) 0)
(check-equal? (syntax-position the-parsed-object-stx) 1)
(check-equal? (syntax-span the-parsed-object-stx) 28)
(check-equal? (length the-parsed-object) 4)
(check-equal? (syntax->datum (second the-parsed-object))
'(rows (repeat 3) (chunk 9 "X") ";"))
(check-equal? (syntax-line (list-ref the-parsed-object 1)) 1)
(check-equal? (syntax->datum (third the-parsed-object))
'(rows (repeat 6) (chunk 3 " ") (chunk 3 "X") (chunk 3 " ") ";"))
(check-equal? (syntax-line (list-ref the-parsed-object 2)) 2)
(check-equal? (syntax->datum (fourth the-parsed-object))
'(rows (repeat 3) (chunk 9 "X") ";"))
(check-equal? (syntax-line (list-ref the-parsed-object 3)) 3))
;; FIXME: add tests to make sure location is as we expect.
;;
;; FIXME: handle the EOF issue better. Something in cfg-parser
;; appears to deviate from yaragg/parser-tools/yacc with regards to the stop
;; token.