// does the callback get fired when the directory
// the file is in gets renamed?
// TODO: replace with tempfiles.
func TestWatchFileRenameDirectory(t *testing.T) {
assert := assert.New(t)
folder := "/tmp/CANARYTEST"
file_name := folder + "/test1.gems"
os.Mkdir(folder, 0777)
ioutil.WriteFile(file_name, []byte("tst"), 0644)
cbInvoked := make(chan bool, 10)
mutex := &sync.Mutex{}
counter := 0
testcb := func(wfile *WatchedFile) {
mutex.Lock()
counter++
mutex.Unlock()
cbInvoked <- true
}
wfile := NewWatchedFile(file_name, testcb)
// file gets read on hook add
wfile.StartListener()
defer wfile.StopListening()
<-cbInvoked
// aight. let's rename the folder it's in.
// let's create a tmp path we can rename to.
folder2 := "/tmp/CANARYTEST2"
os.Rename(folder, folder2)
// file should now be missing.
time.Sleep(TEST_POLL_SLEEP)
assert.False(wfile.GetBeingWatched())
// let's then recreate a new file w/same path
// recreate the old folderm
os.Mkdir(folder, 0777)
// write new file
ioutil.WriteFile(file_name, []byte("tst2"), 0644)
time.Sleep(TEST_POLL_SLEEP)
// this file should be different, thus triggering
// another callback
mutex.Lock()
assert.Equal(2, counter)
mutex.Unlock()
os.RemoveAll(folder)
os.RemoveAll(folder2)
}
func TestWatchFileFailure(t *testing.T) {
assert := assert.New(t)
file_content := "tst1"
tf, _ := ioutil.TempFile("", "gems.lock")
tf.Write([]byte(file_content))
tf.Close()
cbInvoked := make(chan bool)
testcb := func(nop *WatchedFile) {
cbInvoked <- true
}
wfile := NewWatchedFile(tf.Name(), testcb)
wfile.StartListener()
// File is being wartched
time.Sleep(TEST_POLL_SLEEP)
assert.True(wfile.GetBeingWatched())
os.Remove(tf.Name())
time.Sleep(TEST_POLL_SLEEP)
//Since the file is gone, we stopped watching it
assert.False(wfile.GetBeingWatched())
wfile.StopListening()
}