1 ;;;; various RUN-PROGRAM tests with side effects
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; While most of SBCL is derived from the CMU CL system, the test
7 ;;;; files (like this one) were written from scratch after the fork
10 ;;;; This software is in the public domain and is provided with
11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
12 ;;;; more information.
14 (cl:in-package :cl-user)
16 ;; In addition to definitions lower down the impurity we're avoiding
17 ;; is the sigchld handler that RUN-PROGRAM sets up, which interfers
18 ;; with the manual unix process control done by the test framework
19 ;; (sometimes the handler will manage to WAIT3 a process before
20 ;; run-tests WAITPIDs it).
22 (with-test (:name :run-program-cat-1)
23 (let* ((process (sb-ext:run-program "/bin/cat" '() :wait nil
24 :output :stream :input :stream))
25 (out (process-input process))
26 (in (process-output process)))
28 (loop for i from 0 to 255 do
31 (assert (= (read-byte in) i)))
32 (process-close process))))
34 (with-test (:name :run-program-cat-2 :skipped-on '(not :sb-thread))
35 ;; Tests that reading from a FIFO is interruptible.
36 (let* ((process (sb-ext:run-program "/bin/cat" '()
38 :output :stream :input :stream))
39 (in (process-input process))
40 (out (process-output process))
41 (sem (sb-thread:make-semaphore))
43 (writer (sb-thread:make-thread (lambda ()
44 (sb-thread:wait-on-semaphore sem)
53 (sb-thread:signal-semaphore sem)
57 (setf got (read-line out))
63 (assert (eq unwind :sleep))
64 (sb-thread:join-thread writer)
65 (assert (equal "OK" (read-line out)))))
67 (defclass buffer-stream (sb-gray:fundamental-binary-input-stream sb-gray:fundamental-binary-output-stream)
68 ((buffer :initform (make-array 128
69 :element-type '(unsigned-byte 8)
74 (defmethod stream-element-type ((stream buffer-stream))
77 (defmethod sb-gray:stream-read-sequence ((stream buffer-stream) seq &optional (start 0) end)
78 (let* ((buffer (slot-value stream 'buffer))
79 (end (or end (length seq)))
80 (mark (slot-value stream 'mark))
81 (fill-pointer (fill-pointer buffer))
82 (new-mark (+ mark (min fill-pointer (- end start)))))
83 (setf (slot-value stream 'mark) new-mark)
85 :start1 start :end1 end
86 :start2 mark :end2 fill-pointer)
87 (min end (+ start (- fill-pointer mark)))))
89 (defmethod sb-gray:stream-write-sequence ((stream buffer-stream) seq &optional (start 0) end)
90 (let* ((buffer (slot-value stream 'buffer))
91 (end (or end (length seq)))
92 (fill-pointer (fill-pointer buffer))
93 (new-fill (min (array-total-size buffer) (+ fill-pointer (- end start)))))
94 (setf (fill-pointer buffer) new-fill)
97 :start2 start :end2 end)
100 (with-test (:name :run-program-cat-3)
101 ;; User-defined binary input and output streams.
102 (let ((in (make-instance 'buffer-stream))
103 (out (make-instance 'buffer-stream))
104 (data #(0 1 2 3 4 5 6 7 8 9 10 11 12)))
105 (write-sequence data in)
106 (let ((process (sb-ext:run-program "/bin/cat" '() :wait t :output out :input in))
107 (buf (make-array (length data))))
108 (assert (= 13 (read-sequence buf out)))
109 (assert (= 0 (read-sequence (make-array 8) out)))
110 (assert (equalp buf data)))))
112 (with-test (:name :run-program-cat-4)
113 ;; Null broadcast stream as output
114 (let* ((process (sb-ext:run-program "/bin/cat" '() :wait nil
115 :output (make-broadcast-stream)
117 (in (process-input process)))
120 (write-string "foobar" in)
122 (process-wait process))
123 (process-close process))))
125 ;;; Test driving an external program (cat) through pipes wrapped in
126 ;;; composite streams.
131 (multiple-value-bind (in out) (sb-posix:pipe)
132 (let ((input (sb-sys:make-fd-stream in
134 :external-format :ascii
135 :buffering :none :name "in"))
136 (output (sb-sys:make-fd-stream out
138 :external-format :ascii
139 :buffering :none :name "out")))
140 (make-two-way-stream input output))))
142 (defparameter *cat-in-pipe* (make-pipe))
143 (defparameter *cat-in* (make-synonym-stream '*cat-in-pipe*))
144 (defparameter *cat-out-pipe* (make-pipe))
145 (defparameter *cat-out* (make-synonym-stream '*cat-out-pipe*))
147 (with-test (:name :run-program-cat-5)
148 (let ((cat (run-program "/bin/cat" nil :input *cat-in* :output *cat-out*
150 (dolist (test '("This is a test!"
151 "This is another test!"
152 "This is the last test...."))
153 (write-line test *cat-in*)
154 (assert (equal test (read-line *cat-out*))))
155 (process-close cat)))
157 ;;; The above test used to use ed, but there were buffering issues: on some platforms
158 ;;; buffering of stdin and stdout depends on their TTYness, and ed isn't sufficiently
159 ;;; agressive about flushing them. So, here's another test using :PTY.
161 (defparameter *tmpfile* "run-program-ed-test.tmp")
163 (with-open-file (f *tmpfile*
165 :if-exists :supersede)
166 (write-line "bar" f))
169 (run-program "/bin/ed" (list *tmpfile*) :wait nil :pty t))
171 (defparameter *ed-pipe* (make-two-way-stream (process-pty *ed*) (process-pty *ed*)))
172 (defparameter *ed-in* (make-synonym-stream '*ed-pipe*))
173 (defparameter *ed-out* (make-synonym-stream '*ed-pipe*))
175 (defun read-linish (stream)
176 (with-output-to-string (s)
177 (loop for c = (read-char stream)
178 while (and c (not (eq #\newline c)))
179 ;; Some eds like to send \r\n
180 do (unless (eq #\return c)
183 (defun assert-ed (command response)
185 (write-line command *ed-in*)
186 (force-output *ed-in*))
188 (let ((got (read-linish *ed-out*)))
189 (unless (equal response got)
190 (error "wanted '~A' from ed, got '~A'" response got))))
194 (with-test (:name :run-program-ed)
196 (assert-ed ".s/bar/baz/g" nil)
200 (with-open-file (f *tmpfile*)
201 (assert (equal "baz" (read-line f)))))
202 (delete-file *tmpfile*))
204 ;; Around 1.0.12 there was a regression when :INPUT or :OUTPUT was a
205 ;; pathname designator. Since these use the same code, it should
206 ;; suffice to test just :INPUT.
209 (progn (with-open-file (f "run-program-test.tmp" :direction :output)
210 (setf file (truename f))
211 (write-line "Foo" f))
212 (assert (run-program "cat" ()
213 :input file :output t
216 (delete-file file))))
218 ;;; This used to crash on Darwin and trigger recursive lock errors on
220 (with-test (:name (:run-program :stress))
221 ;; Do it a hundred times in batches of 10 so that with a low limit
222 ;; of the number of processes the test can have a chance to pass.
226 #'sb-ext:process-wait
229 (sb-ext:run-program "/bin/echo" '
230 ("It would be nice if this didn't crash.")
231 :wait nil :output nil)))))
233 (with-test (:name (:run-program :pty-stream))
236 (with-output-to-string (s)
237 (assert (= 42 (process-exit-code
238 (run-program "/bin/sh" '("-c" "echo OK; exit 42") :wait t
244 ;; Check whether RUN-PROGRAM puts its child process into the foreground
245 ;; when stdin is inherited. If it fails to do so we will receive a SIGTTIN.
247 ;; We can't check for the signal itself since run-program.c resets the
248 ;; forked process' signal mask to defaults. But the default is `stop'
249 ;; of which we can be notified asynchronously by providing a status hook.
250 (with-test (:name (:run-program :inherit-stdin))
252 (flet ((status-hook (proc)
253 (case (sb-ext:process-status proc)
254 (:stopped (setf stopped t)))))
255 (let ((proc (sb-ext:run-program "/bin/ed" nil :search nil :wait nil
257 :status-hook #'status-hook)))
258 ;; Give the program a generous time to generate the SIGTTIN.
259 ;; If it hasn't done so after that time we can consider it
260 ;; to be working (i.e. waiting for input without generating SIGTTIN).
262 ;; either way we have to signal it to terminate
263 (process-kill proc sb-posix:sigterm)
265 (assert (not stopped))))))