--- /dev/null
- ;; It doesn't work for `w32notify'.
+;;; file-notify-tests.el --- Tests of file notifications -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+;; Author: Michael Albinus <michael.albinus@gmx.de>
+
+;; This program is free software: you can redistribute it and/or
+;; modify it under the terms of the GNU General Public License as
+;; published by the Free Software Foundation, either version 3 of the
+;; License, or (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program. If not, see `http://www.gnu.org/licenses/'.
+
+;;; Commentary:
+
+;; Some of the tests require access to a remote host files. Since
+;; this could be problematic, a mock-up connection method "mock" is
+;; used. Emulating a remote connection, it simply calls "sh -i".
+;; Tramp's file name handlers still run, so this test is sufficient
+;; except for connection establishing.
+
+;; If you want to test a real Tramp connection, set
+;; $REMOTE_TEMPORARY_FILE_DIRECTORY to a suitable value in order to
+;; overwrite the default value. If you want to skip tests accessing a
+;; remote host, set this environment variable to "/dev/null" or
+;; whatever is appropriate on your system.
+
+;; A whole test run can be performed calling the command `file-notify-test-all'.
+
+;;; Code:
+
+(require 'ert)
+(require 'filenotify)
+(require 'tramp)
+
+;; There is no default value on w32 systems, which could work out of the box.
+(defconst file-notify-test-remote-temporary-file-directory
+ (cond
+ ((getenv "REMOTE_TEMPORARY_FILE_DIRECTORY"))
+ ((eq system-type 'windows-nt) null-device)
+ (t (add-to-list
+ 'tramp-methods
+ '("mock"
+ (tramp-login-program "sh")
+ (tramp-login-args (("-i")))
+ (tramp-remote-shell "/bin/sh")
+ (tramp-remote-shell-args ("-c"))
+ (tramp-connection-timeout 10)))
+ (format "/mock::%s" temporary-file-directory)))
+ "Temporary directory for Tramp tests.")
+
+(defvar file-notify--test-tmpfile nil)
+(defvar file-notify--test-tmpfile1 nil)
+(defvar file-notify--test-desc nil)
+(defvar file-notify--test-results nil)
+(defvar file-notify--test-event nil)
+(defvar file-notify--test-events nil)
+
+(defun file-notify--test-timeout ()
+ "Timeout to wait for arriving events, in seconds."
+ (cond
+ ((file-remote-p temporary-file-directory) 6)
+ ((string-equal (file-notify--test-library) "w32notify") 20)
+ ((eq system-type 'cygwin) 10)
+ (t 3)))
+
+(defun file-notify--test-cleanup ()
+ "Cleanup after a test."
+ (file-notify-rm-watch file-notify--test-desc)
+
+ (when (and file-notify--test-tmpfile
+ (file-exists-p file-notify--test-tmpfile))
+ (if (file-directory-p file-notify--test-tmpfile)
+ (delete-directory file-notify--test-tmpfile 'recursive)
+ (delete-file file-notify--test-tmpfile)))
+ (when (and file-notify--test-tmpfile1
+ (file-exists-p file-notify--test-tmpfile1))
+ (if (file-directory-p file-notify--test-tmpfile1)
+ (delete-directory file-notify--test-tmpfile1 'recursive)
+ (delete-file file-notify--test-tmpfile1)))
+ (when (file-remote-p temporary-file-directory)
+ (tramp-cleanup-connection
+ (tramp-dissect-file-name temporary-file-directory) nil 'keep-password))
+
+ (setq file-notify--test-tmpfile nil
+ file-notify--test-tmpfile1 nil
+ file-notify--test-desc nil
+ file-notify--test-results nil
+ file-notify--test-events nil)
+ (when file-notify--test-event
+ (error "file-notify--test-event should not be set but bound dynamically")))
+
+(setq password-cache-expiry nil
+ tramp-verbose 0
+ tramp-message-show-message nil)
+
+;; This shall happen on hydra only.
+(when (getenv "NIX_STORE")
+ (add-to-list 'tramp-remote-path 'tramp-own-remote-path))
+
+;; We do not want to try and fail `file-notify-add-watch'.
+(defun file-notify--test-local-enabled ()
+ "Whether local file notification is enabled.
+This is needed for local `temporary-file-directory' only, in the
+remote case we return always t."
+ (or file-notify--library
+ (file-remote-p temporary-file-directory)))
+
+(defvar file-notify--test-remote-enabled-checked nil
+ "Cached result of `file-notify--test-remote-enabled'.
+If the function did run, the value is a cons cell, the `cdr'
+being the result.")
+
+(defun file-notify--test-remote-enabled ()
+ "Whether remote file notification is enabled."
+ (unless (consp file-notify--test-remote-enabled-checked)
+ (let (desc)
+ (ignore-errors
+ (and
+ (file-remote-p file-notify-test-remote-temporary-file-directory)
+ (file-directory-p file-notify-test-remote-temporary-file-directory)
+ (file-writable-p file-notify-test-remote-temporary-file-directory)
+ (setq desc
+ (file-notify-add-watch
+ file-notify-test-remote-temporary-file-directory
+ '(change) 'ignore))))
+ (setq file-notify--test-remote-enabled-checked (cons t desc))
+ (when desc (file-notify-rm-watch desc))))
+ ;; Return result.
+ (cdr file-notify--test-remote-enabled-checked))
+
+(defun file-notify--test-library ()
+ "The used library for the test, as a string.
+In the remote case, it is the process name which runs on the
+remote host, or nil."
+ (if (null (file-remote-p temporary-file-directory))
+ (symbol-name file-notify--library)
+ (and (consp file-notify--test-remote-enabled-checked)
+ (processp (cdr file-notify--test-remote-enabled-checked))
+ (replace-regexp-in-string
+ "<[[:digit:]]+>\\'" ""
+ (process-name (cdr file-notify--test-remote-enabled-checked))))))
+
+(defmacro file-notify--deftest-remote (test docstring)
+ "Define ert `TEST-remote' for remote files."
+ (declare (indent 1))
+ `(ert-deftest ,(intern (concat (symbol-name test) "-remote")) ()
+ ,docstring
+ :tags '(:expensive-test)
+ (let* ((temporary-file-directory
+ file-notify-test-remote-temporary-file-directory)
+ (ert-test (ert-get-test ',test)))
+ (skip-unless (file-notify--test-remote-enabled))
+ (tramp-cleanup-connection
+ (tramp-dissect-file-name temporary-file-directory) nil 'keep-password)
+ (funcall (ert-test-body ert-test)))))
+
+(ert-deftest file-notify-test00-availability ()
+ "Test availability of `file-notify'."
+ (skip-unless (file-notify--test-local-enabled))
+ ;; Report the native library which has been used.
+ (message "Library: `%s'" (file-notify--test-library))
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch temporary-file-directory '(change) 'ignore)))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup))
+
+(file-notify--deftest-remote file-notify-test00-availability
+ "Test availability of `file-notify' for remote files.")
+
+(ert-deftest file-notify-test01-add-watch ()
+ "Check `file-notify-add-watch'."
+ (skip-unless (file-notify--test-local-enabled))
+
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name)
+ file-notify--test-tmpfile1
+ (format "%s/%s" file-notify--test-tmpfile (md5 (current-time-string))))
+
+ ;; Check, that different valid parameters are accepted.
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch temporary-file-directory '(change) 'ignore)))
+ (file-notify-rm-watch file-notify--test-desc)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ temporary-file-directory '(attribute-change) 'ignore)))
+ (file-notify-rm-watch file-notify--test-desc)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ temporary-file-directory '(change attribute-change) 'ignore)))
+ (file-notify-rm-watch file-notify--test-desc)
+ (write-region "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile '(change attribute-change) 'ignore)))
+ (file-notify-rm-watch file-notify--test-desc)
+ (delete-file file-notify--test-tmpfile)
+
+ ;; Check error handling.
+ (should-error (file-notify-add-watch 1 2 3 4)
+ :type 'wrong-number-of-arguments)
+ (should
+ (equal (should-error
+ (file-notify-add-watch 1 2 3))
+ '(wrong-type-argument 1)))
+ (should
+ (equal (should-error
+ (file-notify-add-watch temporary-file-directory 2 3))
+ '(wrong-type-argument 2)))
+ (should
+ (equal (should-error
+ (file-notify-add-watch temporary-file-directory '(change) 3))
+ '(wrong-type-argument 3)))
+ ;; The upper directory of a file must exist.
+ (should
+ (equal (should-error
+ (file-notify-add-watch
+ file-notify--test-tmpfile1 '(change attribute-change) 'ignore))
+ `(file-notify-error
+ "Directory does not exist" ,file-notify--test-tmpfile)))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup))
+
+(file-notify--deftest-remote file-notify-test01-add-watch
+ "Check `file-notify-add-watch' for remote files.")
+
+(defun file-notify--test-event-test ()
+ "Ert test function to be called by `file-notify--test-event-handler'.
+We cannot pass arguments, so we assume that `file-notify--test-event'
+is bound somewhere."
+ ;; Check the descriptor.
+ (should (equal (car file-notify--test-event) file-notify--test-desc))
+ ;; Check the file name.
+ (should
+ (or (string-equal (file-notify--event-file-name file-notify--test-event)
+ file-notify--test-tmpfile)
+ (string-equal (file-notify--event-file-name file-notify--test-event)
+ file-notify--test-tmpfile1)
+ (string-equal (file-notify--event-file-name file-notify--test-event)
+ temporary-file-directory)))
+ ;; Check the second file name if exists.
+ (when (eq (nth 1 file-notify--test-event) 'renamed)
+ (should
+ (or (string-equal (file-notify--event-file1-name file-notify--test-event)
+ file-notify--test-tmpfile1)
+ (string-equal (file-notify--event-file1-name file-notify--test-event)
+ temporary-file-directory)))))
+
+(defun file-notify--test-event-handler (event)
+ "Run a test over FILE-NOTIFY--TEST-EVENT.
+For later analysis, append the test result to `file-notify--test-results'
+and the event to `file-notify--test-events'."
+ (let* ((file-notify--test-event event)
+ (result
+ (ert-run-test (make-ert-test :body 'file-notify--test-event-test))))
+ ;; Do not add lock files, this would confuse the checks.
+ (unless (string-match
+ (regexp-quote ".#")
+ (file-notify--event-file-name file-notify--test-event))
+ ;;(message "file-notify--test-event-handler %S" file-notify--test-event)
+ (setq file-notify--test-events
+ (append file-notify--test-events `(,file-notify--test-event))
+ file-notify--test-results
+ (append file-notify--test-results `(,result))))))
+
+(defun file-notify--test-make-temp-name ()
+ "Create a temporary file name for test."
+ (expand-file-name
+ (make-temp-name "file-notify-test") temporary-file-directory))
+
+(defmacro file-notify--wait-for-events (timeout until)
+ "Wait for and return file notification events until form UNTIL is true.
+TIMEOUT is the maximum time to wait for, in seconds."
+ `(with-timeout (,timeout (ignore))
+ (while (null ,until)
+ (read-event nil nil 0.1))))
+
+(defmacro file-notify--test-with-events (events &rest body)
+ "Run BODY collecting events and then compare with EVENTS.
+EVENTS is either a simple list of events, or a list of lists of
+events, which represent different possible results. Don't wait
+longer than timeout seconds for the events to be delivered."
+ (declare (indent 1))
+ (let ((outer (make-symbol "outer")))
+ `(let* ((,outer file-notify--test-events)
+ (events (if (consp (car ,events)) ,events (list ,events)))
+ (max-length (apply 'max (mapcar 'length events)))
+ create-lockfiles result)
+ ;; Flush pending events.
+ (file-notify--wait-for-events
+ (file-notify--test-timeout)
+ (input-pending-p))
+ (let (file-notify--test-events)
+ ,@body
+ (file-notify--wait-for-events
+ ;; More events need more time. Use some fudge factor.
+ (* (ceiling max-length 100) (file-notify--test-timeout))
+ (= max-length (length file-notify--test-events)))
+ ;; One of the possible results shall match.
+ (should
+ (dolist (elt events result)
+ (setq result
+ (or result
+ (equal elt (mapcar #'cadr file-notify--test-events))))))
+ (setq ,outer (append ,outer file-notify--test-events)))
+ (setq file-notify--test-events ,outer))))
+
+(ert-deftest file-notify-test02-events ()
+ "Check file creation/change/removal notifications."
+ (skip-unless (file-notify--test-local-enabled))
+
+ (unwind-protect
+ (progn
+ ;; Check file creation, change and deletion. It doesn't work
+ ;; for cygwin and kqueue, because we don't use an implicit
+ ;; directory monitor (kqueue), or the timings are too bad (cygwin).
+ (unless (or (eq system-type 'cygwin)
+ (string-equal (file-notify--test-library) "kqueue"))
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name))
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(change) 'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; cygwin recognizes only `deleted' and `stopped' events.
+ ((eq system-type 'cygwin)
+ '(deleted stopped))
+ (t '(created changed deleted stopped)))
+ (write-region
+ "another text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (delete-file file-notify--test-tmpfile))
+ ;; `file-notify-rm-watch' fires the `stopped' event. Suppress it.
+ (let (file-notify--test-events)
+ (file-notify-rm-watch file-notify--test-desc)))
+
+ ;; Check file change and deletion.
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name))
+ (write-region "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(change) 'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; cygwin recognizes only `deleted' and `stopped' events.
+ ((eq system-type 'cygwin)
+ '(deleted stopped))
+ ;; inotify and kqueue raise just one `changed' event.
+ ((or (string-equal "inotify" (file-notify--test-library))
+ (string-equal "kqueue" (file-notify--test-library)))
+ '(changed deleted stopped))
+ ;; gfilenotify raises one or two `changed' events
+ ;; randomly, no chance to test. So we accept both cases.
+ ((string-equal "gfilenotify" (file-notify--test-library))
+ '((changed deleted stopped)
+ (changed changed deleted stopped)))
+ (t '(changed changed deleted stopped)))
+ (read-event nil nil 0.1)
+ (write-region
+ "another text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (delete-file file-notify--test-tmpfile))
+ ;; `file-notify-rm-watch' fires the `stopped' event. Suppress it.
+ (let (file-notify--test-events)
+ (file-notify-rm-watch file-notify--test-desc))
+
+ ;; Check file creation, change and deletion when watching a
+ ;; directory. There must be a `stopped' event when deleting
+ ;; the directory.
+ (let ((temporary-file-directory
+ (make-temp-file "file-notify-test-parent" t)))
+ (should
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name)
+ file-notify--test-desc
+ (file-notify-add-watch
+ temporary-file-directory
+ '(change) 'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; w32notify does raise a `stopped' event when a
+ ;; watched directory is deleted.
+ ((string-equal (file-notify--test-library) "w32notify")
+ '(created changed deleted))
+ ;; cygwin recognizes only `deleted' and `stopped' events.
+ ((eq system-type 'cygwin)
+ '(deleted stopped))
+ ;; There are two `deleted' events, for the file and for
+ ;; the directory. Except for kqueue.
+ ((string-equal (file-notify--test-library) "kqueue")
+ '(created changed deleted stopped))
+ (t '(created changed deleted deleted stopped)))
+ (read-event nil nil 0.1)
+ (write-region
+ "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (delete-directory temporary-file-directory 'recursive))
+ ;; `file-notify-rm-watch' fires the `stopped' event. Suppress it.
+ (let (file-notify--test-events)
+ (file-notify-rm-watch file-notify--test-desc)))
+
+ ;; Check copy of files inside a directory.
+ (let ((temporary-file-directory
+ (make-temp-file "file-notify-test-parent" t)))
+ (should
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name)
+ file-notify--test-tmpfile1 (file-notify--test-make-temp-name)
+ file-notify--test-desc
+ (file-notify-add-watch
+ temporary-file-directory
+ '(change) 'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; w32notify does not distinguish between `changed' and
+ ;; `attribute-changed'.
+ ((string-equal (file-notify--test-library) "w32notify")
+ '(created changed created changed changed changed changed
+ deleted deleted))
+ ;; cygwin recognizes only `deleted' and `stopped' events.
+ ((eq system-type 'cygwin)
+ '(deleted stopped))
+ ;; There are three `deleted' events, for two files and
+ ;; for the directory. Except for kqueue.
+ ((string-equal (file-notify--test-library) "kqueue")
+ '(created changed created changed deleted stopped))
+ (t '(created changed created changed
+ deleted deleted deleted stopped)))
+ (read-event nil nil 0.1)
+ (write-region
+ "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (copy-file file-notify--test-tmpfile file-notify--test-tmpfile1)
+ ;; The next two events shall not be visible.
+ (read-event nil nil 0.1)
+ (set-file-modes file-notify--test-tmpfile 000)
+ (read-event nil nil 0.1)
+ (set-file-times file-notify--test-tmpfile '(0 0))
+ (read-event nil nil 0.1)
+ (delete-directory temporary-file-directory 'recursive))
+ ;; `file-notify-rm-watch' fires the `stopped' event. Suppress it.
+ (let (file-notify--test-events)
+ (file-notify-rm-watch file-notify--test-desc)))
+
+ ;; Check rename of files inside a directory.
+ (let ((temporary-file-directory
+ (make-temp-file "file-notify-test-parent" t)))
+ (should
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name)
+ file-notify--test-tmpfile1 (file-notify--test-make-temp-name)
+ file-notify--test-desc
+ (file-notify-add-watch
+ temporary-file-directory
+ '(change) 'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; w32notify does not distinguish between `changed' and
+ ;; `attribute-changed'.
+ ((string-equal (file-notify--test-library) "w32notify")
+ '(created changed renamed deleted))
+ ;; cygwin recognizes only `deleted' and `stopped' events.
+ ((eq system-type 'cygwin)
+ '(deleted stopped))
+ ;; There are two `deleted' events, for the file and for
+ ;; the directory. Except for kqueue.
+ ((string-equal (file-notify--test-library) "kqueue")
+ '(created changed renamed deleted stopped))
+ (t '(created changed renamed deleted deleted stopped)))
+ (read-event nil nil 0.1)
+ (write-region
+ "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (rename-file file-notify--test-tmpfile file-notify--test-tmpfile1)
+ ;; After the rename, we won't get events anymore.
+ (read-event nil nil 0.1)
+ (delete-directory temporary-file-directory 'recursive))
+ ;; `file-notify-rm-watch' fires the `stopped' event. Suppress it.
+ (let (file-notify--test-events)
+ (file-notify-rm-watch file-notify--test-desc)))
+
+ ;; Check attribute change. Does not work for cygwin.
+ (unless (eq system-type 'cygwin)
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name))
+ (write-region
+ "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(attribute-change) 'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; w32notify does not distinguish between `changed' and
+ ;; `attribute-changed'.
+ ((string-equal (file-notify--test-library) "w32notify")
+ '(changed changed changed changed))
+ ;; For kqueue and in the remote case, `write-region'
+ ;; raises also an `attribute-changed' event.
+ ((or (string-equal (file-notify--test-library) "kqueue")
+ (file-remote-p temporary-file-directory))
+ '(attribute-changed attribute-changed attribute-changed))
+ (t '(attribute-changed attribute-changed)))
+ (read-event nil nil 0.1)
+ (write-region
+ "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (set-file-modes file-notify--test-tmpfile 000)
+ (read-event nil nil 0.1)
+ (set-file-times file-notify--test-tmpfile '(0 0))
+ (read-event nil nil 0.1)
+ (delete-file file-notify--test-tmpfile))
+ ;; `file-notify-rm-watch' fires the `stopped' event. Suppress it.
+ (let (file-notify--test-events)
+ (file-notify-rm-watch file-notify--test-desc)))
+
+ ;; Check the global sequence again just to make sure that
+ ;; `file-notify--test-events' has been set correctly.
+ (should file-notify--test-results)
+ (dolist (result file-notify--test-results)
+ (when (ert-test-failed-p result)
+ (ert-fail
+ (cadr (ert-test-result-with-condition-condition result))))))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup)))
+
+(file-notify--deftest-remote file-notify-test02-events
+ "Check file creation/change/removal notifications for remote files.")
+
+(require 'autorevert)
+(setq auto-revert-notify-exclude-dir-regexp "nothing-to-be-excluded"
+ auto-revert-remote-files t
+ auto-revert-stop-on-user-input nil)
+
+(ert-deftest file-notify-test03-autorevert ()
+ "Check autorevert via file notification."
+ (skip-unless (file-notify--test-local-enabled))
+ ;; `auto-revert-buffers' runs every 5". And we must wait, until the
+ ;; file has been reverted.
+ (let ((timeout (if (file-remote-p temporary-file-directory) 60 10))
+ buf)
+ (unwind-protect
+ (progn
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name))
+
+ (write-region
+ "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (setq buf (find-file-noselect file-notify--test-tmpfile))
+ (with-current-buffer buf
+ (should (string-equal (buffer-string) "any text"))
+ ;; `buffer-stale--default-function' checks for
+ ;; `verify-visited-file-modtime'. We must ensure that it
+ ;; returns nil.
+ (sleep-for 1)
+ (auto-revert-mode 1)
+
+ ;; `auto-revert-buffers' runs every 5".
+ (with-timeout (timeout (ignore))
+ (while (null auto-revert-notify-watch-descriptor)
+ (sleep-for 1)))
+
+ ;; Check, that file notification has been used.
+ (should auto-revert-mode)
+ (should auto-revert-use-notify)
+ (should auto-revert-notify-watch-descriptor)
+
+ ;; Modify file. We wait for a second, in order to have
+ ;; another timestamp.
+ (with-current-buffer (get-buffer-create "*Messages*")
+ (narrow-to-region (point-max) (point-max)))
+ (sleep-for 1)
+ (write-region
+ "another text" nil file-notify--test-tmpfile nil 'no-message)
+
+ ;; Check, that the buffer has been reverted.
+ (with-current-buffer (get-buffer-create "*Messages*")
+ (file-notify--wait-for-events
+ timeout
+ (string-match
+ (format-message "Reverting buffer `%s'." (buffer-name buf))
+ (buffer-string))))
+ (should (string-match "another text" (buffer-string)))
+
+ ;; Stop file notification. Autorevert shall still work via polling.
- (let ((n 1000)
++ ;; It doesn't work for w32notify.
+ (unless (string-equal (file-notify--test-library) "w32notify")
+ (file-notify-rm-watch auto-revert-notify-watch-descriptor)
+ (file-notify--wait-for-events
+ timeout (null auto-revert-use-notify))
+ (should-not auto-revert-use-notify)
+ (should-not auto-revert-notify-watch-descriptor)
+
+ ;; Modify file. We wait for two seconds, in order to
+ ;; have another timestamp. One second seems to be too
+ ;; short.
+ (with-current-buffer (get-buffer-create "*Messages*")
+ (narrow-to-region (point-max) (point-max)))
+ (sleep-for 2)
+ (write-region
+ "foo bla" nil file-notify--test-tmpfile nil 'no-message)
+
+ ;; Check, that the buffer has been reverted.
+ (with-current-buffer (get-buffer-create "*Messages*")
+ (file-notify--wait-for-events
+ timeout
+ (string-match
+ (format-message "Reverting buffer `%s'." (buffer-name buf))
+ (buffer-string))))
+ (should (string-match "foo bla" (buffer-string))))))
+
+ ;; Cleanup.
+ (with-current-buffer "*Messages*" (widen))
+ (ignore-errors (kill-buffer buf))
+ (file-notify--test-cleanup))))
+
+(file-notify--deftest-remote file-notify-test03-autorevert
+ "Check autorevert via file notification for remote files.")
+
+(ert-deftest file-notify-test04-file-validity ()
+ "Check `file-notify-valid-p' for files."
+ (skip-unless (file-notify--test-local-enabled))
+
+ (unwind-protect
+ (progn
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name))
+ (write-region "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(change) #'file-notify--test-event-handler)))
+ (should (file-notify-valid-p file-notify--test-desc))
+ ;; After calling `file-notify-rm-watch', the descriptor is not
+ ;; valid anymore.
+ (file-notify-rm-watch file-notify--test-desc)
+ (should-not (file-notify-valid-p file-notify--test-desc))
+ (delete-file file-notify--test-tmpfile))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup))
+
+ (unwind-protect
+ (progn
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name))
+ (write-region "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(change) #'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; cygwin recognizes only `deleted' and `stopped' events.
+ ((eq system-type 'cygwin)
+ '(deleted stopped))
+ ;; inotify and kqueue raise just one `changed' event.
+ ((or (string-equal "inotify" (file-notify--test-library))
+ (string-equal "kqueue" (file-notify--test-library)))
+ '(changed deleted stopped))
+ ;; gfilenotify raises one or two `changed' events
+ ;; randomly, no chance to test. So we accept both cases.
+ ((string-equal "gfilenotify" (file-notify--test-library))
+ '((changed deleted stopped)
+ (changed changed deleted stopped)))
+ (t '(changed changed deleted stopped)))
+ (should (file-notify-valid-p file-notify--test-desc))
+ (read-event nil nil 0.1)
+ (write-region
+ "another text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (delete-file file-notify--test-tmpfile))
+ ;; After deleting the file, the descriptor is not valid anymore.
+ (should-not (file-notify-valid-p file-notify--test-desc))
+ (file-notify-rm-watch file-notify--test-desc))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup))
+
+ (unwind-protect
+ ;; w32notify does not send a `stopped' event when deleting a
+ ;; directory. The test does not work, therefore.
+ (unless (string-equal (file-notify--test-library) "w32notify")
+ (let ((temporary-file-directory
+ (make-temp-file "file-notify-test-parent" t)))
+ (should
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name)
+ file-notify--test-desc
+ (file-notify-add-watch
+ temporary-file-directory
+ '(change) #'file-notify--test-event-handler)))
+ (file-notify--test-with-events
+ (cond
+ ;; cygwin recognizes only `deleted' and `stopped' events.
+ ((eq system-type 'cygwin)
+ '(deleted stopped))
+ ;; There are two `deleted' events, for the file and for
+ ;; the directory. Except for kqueue.
+ ((string-equal (file-notify--test-library) "kqueue")
+ '(created changed deleted stopped))
+ (t '(created changed deleted deleted stopped)))
+ (should (file-notify-valid-p file-notify--test-desc))
+ (read-event nil nil 0.1)
+ (write-region
+ "any text" nil file-notify--test-tmpfile nil 'no-message)
+ (read-event nil nil 0.1)
+ (delete-directory temporary-file-directory t))
+ ;; After deleting the parent directory, the descriptor must
+ ;; not be valid anymore.
+ (should-not (file-notify-valid-p file-notify--test-desc))))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup)))
+
+(file-notify--deftest-remote file-notify-test04-file-validity
+ "Check `file-notify-valid-p' via file notification for remote files.")
+
+(ert-deftest file-notify-test05-dir-validity ()
+ "Check `file-notify-valid-p' for directories."
+ (skip-unless (file-notify--test-local-enabled))
+
+ (unwind-protect
+ (progn
+ (setq file-notify--test-tmpfile
+ (file-name-as-directory (file-notify--test-make-temp-name)))
+ (make-directory file-notify--test-tmpfile)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(change) #'file-notify--test-event-handler)))
+ (should (file-notify-valid-p file-notify--test-desc))
+ ;; After removing the watch, the descriptor must not be valid
+ ;; anymore.
+ (file-notify-rm-watch file-notify--test-desc)
+ (file-notify--wait-for-events
+ (file-notify--test-timeout)
+ (not (file-notify-valid-p file-notify--test-desc)))
+ (should-not (file-notify-valid-p file-notify--test-desc)))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup))
+
+ (unwind-protect
+ ;; The batch-mode operation of w32notify is fragile (there's no
+ ;; input threads to send the message to).
+ (unless (and noninteractive
+ (string-equal (file-notify--test-library) "w32notify"))
+ (setq file-notify--test-tmpfile
+ (file-name-as-directory (file-notify--test-make-temp-name)))
+ (make-directory file-notify--test-tmpfile)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(change) #'file-notify--test-event-handler)))
+ (should (file-notify-valid-p file-notify--test-desc))
+ ;; After deleting the directory, the descriptor must not be
+ ;; valid anymore.
+ (delete-directory file-notify--test-tmpfile t)
+ (file-notify--wait-for-events
+ (file-notify--test-timeout)
+ (not (file-notify-valid-p file-notify--test-desc)))
+ (should-not (file-notify-valid-p file-notify--test-desc)))
+
+ ;; Cleanup.
+ (file-notify--test-cleanup)))
+
+(file-notify--deftest-remote file-notify-test05-dir-validity
+ "Check `file-notify-valid-p' via file notification for remote directories.")
+
+(ert-deftest file-notify-test06-many-events ()
+ "Check that events are not dropped."
+ :tags '(:expensive-test)
+ (skip-unless (file-notify--test-local-enabled))
+ ;; Under cygwin events arrive in random order. Impossible to define a test.
+ (skip-unless (not (eq system-type 'cygwin)))
+
+ (setq file-notify--test-tmpfile (file-notify--test-make-temp-name))
+ (make-directory file-notify--test-tmpfile)
+ (should
+ (setq file-notify--test-desc
+ (file-notify-add-watch
+ file-notify--test-tmpfile
+ '(change) 'file-notify--test-event-handler)))
+ (unwind-protect
++ ;; In case of w32notify, the upper limit of events to handle
++ ;; seems to be 260. Reason unknown.
++ (let ((n (if (string-equal (file-notify--test-library) "w32notify")
++ 250 1000))
+ source-file-list target-file-list
+ (default-directory file-notify--test-tmpfile))
+ (dotimes (i n)
+ ;; It matters which direction we rename, at least for
+ ;; kqueue. This backend parses directories in alphabetic
+ ;; order (x%d before y%d). So we rename both directions.
+ (if (zerop (mod i 2))
+ (progn
+ (push (expand-file-name (format "x%d" i)) source-file-list)
+ (push (expand-file-name (format "y%d" i)) target-file-list))
+ (push (expand-file-name (format "y%d" i)) source-file-list)
+ (push (expand-file-name (format "x%d" i)) target-file-list)))
+ (file-notify--test-with-events (make-list (+ n n) 'created)
+ (let ((source-file-list source-file-list)
+ (target-file-list target-file-list))
+ (while (and source-file-list target-file-list)
+ (read-event nil nil 0.1)
+ (write-region "" nil (pop source-file-list) nil 'no-message)
+ (read-event nil nil 0.1)
+ (write-region "" nil (pop target-file-list) nil 'no-message))))
+ (file-notify--test-with-events
+ (cond
+ ;; w32notify fires both `deleted' and `renamed' events.
+ ((string-equal (file-notify--test-library) "w32notify")
+ (let (r)
+ (dotimes (_i n r)
+ (setq r (append '(deleted renamed) r)))))
+ (t (make-list n 'renamed)))
+ (let ((source-file-list source-file-list)
+ (target-file-list target-file-list))
+ (while (and source-file-list target-file-list)
+ (rename-file (pop source-file-list) (pop target-file-list) t))))
+ (file-notify--test-with-events (make-list n 'deleted)
+ (dolist (file target-file-list)
+ (delete-file file))))
+ (file-notify--test-cleanup)))
+
+(file-notify--deftest-remote file-notify-test06-many-events
+ "Check that events are not dropped for remote directories.")
+
+(defun file-notify-test-all (&optional interactive)
+ "Run all tests for \\[file-notify]."
+ (interactive "p")
+ (if interactive
+ (ert-run-tests-interactively "^file-notify-")
+ (ert-run-tests-batch "^file-notify-")))
+
+;; TODO:
+
+;; * For w32notify, no stopped events arrive when a directory is removed.
+;; * Check, why cygwin recognizes only `deleted' and `stopped' events.
+
+(provide 'file-notify-tests)
+;;; file-notify-tests.el ends here
projects / emacs.git / commitdiff