mirror of
https://github.com/ashinn/chibi-scheme.git
synced 2025-05-19 13:49:17 +02:00
8b5eb68238
They can be close()d explicitly with close-file-descriptor, and will close() on gc, but only explicitly closing the last port on them will close the fileno. Notably needed for network sockets where we open separate input and output ports on the same socket.
82 lines
2.4 KiB
Scheme
82 lines
2.4 KiB
Scheme
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(cond-expand
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(modules (import (chibi io) (only (chibi test) test-begin test test-end)))
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(else #f))
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(test-begin "io")
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(define long-string (make-string 2000 #\a))
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(test "input-string-port" 1025
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(call-with-input-string (substring long-string 0 1025)
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(lambda (in)
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(let loop ((c (read-char in)) (i 0))
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(cond ((eof-object? c) i)
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((> i 1025) (error "read past eof"))
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(else (loop (read-char in) (+ i 1))))))))
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(test "read-line" '("abc" "def")
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(call-with-input-string "abc\ndef\n"
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(lambda (in) (let ((line (read-line in))) (list line (read-line in))))))
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(test "read-line-to-eof" '("abc" "def")
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(call-with-input-string "abc\ndef"
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(lambda (in) (let ((line (read-line in))) (list line (read-line in))))))
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(test "read-string" '("abc" "def")
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(call-with-input-string "abcdef"
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(lambda (in) (let ((str (read-string 3 in))) (list str (read-string 3 in))))))
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(test "read-string-to-eof" '("abc" "de")
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(call-with-input-string "abcde"
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(lambda (in) (let ((str (read-string 3 in))) (list str (read-string 3 in))))))
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(test "read-string!" '("abc" "def")
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(call-with-input-string "abcdef"
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(lambda (in)
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(let* ((str1 (make-string 3))
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(str2 (make-string 3)))
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(read-string! str1 3 in)
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(read-string! str2 3 in)
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(list str1 str2)))))
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(test "read-string!-to-eof" '("abc" "de ")
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(call-with-input-string "abcde"
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(lambda (in)
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(let* ((str1 (make-string 3))
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(str2 (make-string 3 #\space)))
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(read-string! str1 3 in)
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(read-string! str2 3 in)
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(list str1 str2)))))
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(test "null-output-port" #t
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(let ((out (make-null-output-port)))
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(write 1 out)
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(close-output-port out)
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#t))
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(test "null-input-port" #t
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(let ((in (make-null-input-port)))
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(let ((res (eof-object? (read-char in))))
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(close-input-port in)
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res)))
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(define (string-upcase str)
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(list->string (map char-upcase (string->list str))))
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(test "upcase-input-port" "ABC"
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(call-with-input-string "abc"
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(lambda (in)
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(let ((in (make-filtered-input-port string-upcase in)))
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(let ((res (read-line in)))
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(close-input-port in)
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res)))))
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(test "upcase-output-port" "ABC"
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(call-with-output-string
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(lambda (out)
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(let ((out (make-filtered-output-port string-upcase out)))
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(display "abc" out)
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(close-output-port out)))))
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(test-end)
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