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janet/test/suite-filewatch.janet
Calvin Rose 90018b35c0 Begin standardizing of event properties for filewatch.
- `:file-name` for the name of the file that triggered the event.
- `:dir-name` for the containing directory of the file
- `:type` for the event type.
2024-08-31 14:26:08 -05:00

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# Copyright (c) 2024 Calvin Rose & contributors
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
(import ./helper :prefix "" :exit true)
(start-suite)
(assert true)
(def chan (ev/chan 1000))
(def is-win (or (= :mingw (os/which)) (= :windows (os/which))))
(def is-linux (= :linux (os/which)))
# If not supported, exit early
(def [supported msg] (protect (filewatch/new chan)))
(when (and (not supported) (string/find "filewatch not supported" msg))
(end-suite)
(quit))
# Test GC
(assert-no-error "filewatch/new" (filewatch/new chan))
(gccollect)
(defn- expect
[key value & more-kvs]
(ev/with-deadline
1
(def event (ev/take chan))
(when is-verbose (pp event))
(assert event "check event")
(assert (= value (get event key)) (string/format "got %p, expected %p" (get event key) value))
(when (next more-kvs)
(each [k v] (partition 2 more-kvs)
(assert (= v (get event k)) (string/format "got %p, expected %p" (get event k) v))))))
(defn- expect-empty
[]
(assert (zero? (ev/count chan)) "channel check empty")
(ev/sleep 0) # turn the event loop
(assert (zero? (ev/count chan)) "channel check empty")
# Drain if not empty, help with failures after this
(while (pos? (ev/count chan)) (printf "extra: %p" (ev/take chan))))
(defn- expect-maybe
"On wine + mingw, we get an extra event. This is a wine peculiarity."
[key value]
(ev/with-deadline
1
(ev/sleep 0)
(when (pos? (ev/count chan))
(def event (ev/take chan))
(when is-verbose (pp event))
(assert event "check event")
(assert (= value (get event key)) (string/format "got %p, expected %p" (get event key) value)))))
(defn spit-file
[dir name]
(def path (string dir "/" name))
(spit path "test text"))
# Different operating systems report events differently. While it would be nice to
# normalize this, each system has very large limitations in what can be reported when
# compared with other systems. As such, the maximum subset of common functionality here
# is quite small. Instead, test the capabilities of each system.
# Create a file watcher on two test directories
(def fw (filewatch/new chan))
(def td1 (randdir))
(def td2 (randdir))
(def td3 (randdir))
(rmrf td1)
(rmrf td2)
(os/mkdir td1)
(os/mkdir td2)
(os/mkdir td3)
(spit-file td3 "file3.txt")
(when is-win
(filewatch/add fw td1 :last-write :last-access :file-name :dir-name :size :attributes :recursive)
(filewatch/add fw td2 :last-write :last-access :file-name :dir-name :size :attributes))
(when is-linux
(filewatch/add fw (string td3 "/file3.txt") :close-write :create :delete)
(filewatch/add fw td1 :close-write :create :delete)
(filewatch/add fw td2 :close-write :create :delete :ignored))
(assert-no-error "filewatch/listen no error" (filewatch/listen fw))
#
# Windows file writing
#
(when is-win
(spit-file td1 "file1.txt")
(expect :type :added :file-name "file1.txt" :dir-name td1)
(expect :type :modified)
(expect-maybe :type :modified) # for mingw + wine
(gccollect)
(spit-file td1 "file1.txt")
(expect :type :modified)
(expect :type :modified)
(expect-empty)
(gccollect)
# Check td2
(spit-file td2 "file2.txt")
(expect :type :added)
(expect :type :modified)
(expect-maybe :type :modified)
# Remove a file, then wait for remove event
(rmrf (string td1 "/file1.txt"))
(expect :type :removed)
(expect-empty)
# Unlisten to some events
(filewatch/remove fw td2)
# Check that we don't get anymore events from test directory 2
(spit-file td2 "file2.txt")
(expect-empty)
# Repeat and things should still work with test directory 1
(spit-file td1 "file1.txt")
(expect :type :added)
(expect :type :modified)
(expect-maybe :type :modified)
(gccollect)
(spit-file td1 "file1.txt")
(expect :type :modified)
(expect :type :modified)
(expect-maybe :type :modified)
(gccollect))
#
# Linux file writing
#
(when is-linux
(spit-file td1 "file1.txt")
(expect :type :create :file-name "file1.txt" :dir-name td1)
(expect :type :close-write)
(expect-empty)
(gccollect)
(spit-file td1 "file1.txt")
(expect :type :close-write)
(expect-empty)
(gccollect)
# Check file3.txt
(spit-file td3 "file3.txt")
(expect :type :close-write :file-name "file3.txt" :dir-name td3)
(expect-empty)
# Check td2
(spit-file td2 "file2.txt")
(expect :type :create)
(expect :type :close-write)
(expect-empty)
# Remove a file, then wait for remove event
(rmrf (string td1 "/file1.txt"))
(expect :type :delete)
(expect-empty)
# Unlisten to some events
(filewatch/remove fw td2)
(expect :type :ignored)
(expect-empty)
# Check that we don't get anymore events from test directory 2
(spit-file td2 "file2.txt")
(expect-empty)
# Repeat and things should still work with test directory 1
(spit-file td1 "file1.txt")
(expect :type :create)
(expect :type :close-write)
(expect-empty)
(gccollect)
(spit-file td1 "file1.txt")
(expect :type :close-write)
(expect-empty)
(gccollect))
(assert-no-error "filewatch/unlisten no error" (filewatch/unlisten fw))
(assert-no-error "cleanup 1" (rmrf td1))
(assert-no-error "cleanup 2" (rmrf td2))
(assert-no-error "cleanup 3" (rmrf td3))
(end-suite)