mirror of
https://github.com/DominicBreuker/pspy.git
synced 2025-12-21 11:44:51 +00:00
add tests for fswatcher
This commit is contained in:
Dominic Breuker
committed by
Dominic Breuker
Dominic Breuker
parent
1deb4838a5
commit
9670b85f43
@@ -15,7 +15,8 @@ type Logger interface {
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}
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type FSWatcher interface {
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Start(rdirs, dirs []string, errCh chan error) (chan struct{}, chan string, error)
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Init(rdirs, dirs []string) (chan error, chan struct{})
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Run() (chan struct{}, chan string, chan error)
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}
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type ProcfsScanner interface {
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@@ -25,15 +26,19 @@ type ProcfsScanner interface {
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func Start(cfg config.Config, logger Logger, inotify FSWatcher, pscan ProcfsScanner, sigCh chan os.Signal) (chan struct{}, error) {
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logger.Infof("Config: %+v\n", cfg)
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// log all errors
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errCh := make(chan error, 10)
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errCh, doneCh := inotify.Init(cfg.RDirs, cfg.Dirs)
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initloop:
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for {
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select {
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case <-doneCh:
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break initloop
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case err := <-errCh:
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logger.Errorf("initializing fs watcher: %v", err)
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}
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}
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triggerCh, fsEventCh, errCh := inotify.Run()
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go logErrors(errCh, logger)
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triggerCh, fsEventCh, err := inotify.Start(cfg.RDirs, cfg.Dirs, errCh)
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if err != nil {
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logger.Errorf("Can't set up inotify watchers: %v\n", err)
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return nil, errors.New("inotify error")
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}
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psEventCh, err := pscan.Setup(triggerCh, 100*time.Millisecond)
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if err != nil {
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logger.Errorf("Can't set up procfs scanner: %+v\n", err)
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@@ -41,7 +46,9 @@ func Start(cfg config.Config, logger Logger, inotify FSWatcher, pscan ProcfsScan
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}
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// ignore all file system events created on startup
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logger.Infof("Draining file system events due to startup...")
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drainChanFor(fsEventCh, 1*time.Second)
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logger.Infof("done")
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exit := make(chan struct{})
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go func() {
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@@ -81,67 +88,6 @@ func drainChanFor(c chan string, d time.Duration) {
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}
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}
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// const MaxInt = int(^uint(0) >> 1)
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// func Watch(rdirs, dirs []string, logPS, logFS bool) {
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// maxWatchers, err := inotify.WatcherLimit()
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// if err != nil {
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// log.Printf("Can't get inotify watcher limit...: %v\n", err)
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// }
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// log.Printf("Inotify watcher limit: %d (/proc/sys/fs/inotify/max_user_watches)\n", maxWatchers)
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// ping := make(chan struct{})
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// in, err := inotify.NewInotify(ping, logFS)
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// if err != nil {
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// log.Fatalf("Can't init inotify: %v", err)
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// }
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// defer in.Close()
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// for _, dir := range rdirs {
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// addWatchers(dir, MaxInt, in, maxWatchers)
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// }
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// for _, dir := range dirs {
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// addWatchers(dir, 0, in, maxWatchers)
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// }
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// log.Printf("Inotify watchers set up: %s - watching now\n", in)
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// procList := process.NewProcList()
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// ticker := time.NewTicker(100 * time.Millisecond)
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// for {
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// select {
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// case <-ticker.C:
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// refresh(in, procList, logPS)
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// case <-ping:
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// refresh(in, procList, logPS)
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// }
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// }
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// }
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// func addWatchers(dir string, depth int, in *inotify.Inotify, maxWatchers int) {
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// dirCh, errCh, doneCh := walker.Walk(dir, depth)
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// loop:
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// for {
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// if in.NumWatchers() >= maxWatchers {
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// close(doneCh)
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// break loop
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// }
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// select {
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// case dir, ok := <-dirCh:
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// if !ok {
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// break loop
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// }
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// if err := in.Watch(dir); err != nil {
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// fmt.Fprintf(os.Stderr, "Can't create watcher: %v\n", err)
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// }
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// case err := <-errCh:
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// fmt.Fprintf(os.Stderr, "Error walking filesystem: %v\n", err)
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// }
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// }
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// }
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// func refresh(in *inotify.Inotify, pl *process.ProcList, print bool) {
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// in.Pause()
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// if err := pl.Refresh(print); err != nil {
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@@ -1,139 +1,140 @@
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package pspy
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import (
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"fmt"
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"os"
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"syscall"
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"testing"
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"time"
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// import (
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// "fmt"
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// "os"
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// "syscall"
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// "testing"
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// "time"
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"github.com/dominicbreuker/pspy/internal/config"
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)
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// "github.com/dominicbreuker/pspy/internal/config"
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// )
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func TestStart(t *testing.T) {
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cfg := config.Config{
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RDirs: []string{"rdir"},
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Dirs: []string{"dir"},
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LogFS: true,
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LogPS: true,
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}
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mockLogger := newMockLogger()
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mockIW := newMockInotifyWatcher(nil)
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mockPS := newMockProcfsScanner(nil)
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sigCh := make(chan os.Signal)
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// func TestStart(t *testing.T) {
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// cfg := config.Config{
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// RDirs: []string{"rdir"},
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// Dirs: []string{"dir"},
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// LogFS: true,
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// LogPS: true,
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// }
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// mockLogger := newMockLogger()
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// mockIW := newMockFSWatcher()
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// mockPS := newMockProcfsScanner(nil)
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// sigCh := make(chan os.Signal)
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exit, err := Start(cfg, mockLogger, mockIW, mockPS, sigCh)
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if err != nil {
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t.Fatalf("Unexpcted error: %v", err)
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}
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mockIW.fsEventCh <- "some fs event"
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expectMsg(t, mockLogger.Event, "FS: some fs event\n")
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// exit, err := Init(cfg, mockLogger, mockIW, mockPS, sigCh)
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// if err != nil {
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// t.Fatalf("Unexpcted error: %v", err)
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// }
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// mockIW.fsEventCh <- "some fs event"
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// expectMsg(t, mockLogger.Event, "FS: some fs event\n")
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mockPS.psEventCh <- "some ps event"
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expectMsg(t, mockLogger.Event, "CMD: some ps event\n")
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// mockPS.psEventCh <- "some ps event"
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// expectMsg(t, mockLogger.Event, "CMD: some ps event\n")
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sigCh <- syscall.SIGINT
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expectExit(t, exit)
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}
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// sigCh <- syscall.SIGINT
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// expectExit(t, exit)
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// }
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func expectMsg(t *testing.T, ch chan string, msg string) {
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select {
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case received := <-ch:
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if received != msg {
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t.Fatalf("Wanted to receive %s but got %s", msg, received)
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}
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case <-time.After(500 * time.Millisecond):
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t.Fatalf("Did not receive message in time. Wanted: %s", msg)
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}
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}
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// func expectMsg(t *testing.T, ch chan string, msg string) {
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// select {
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// case received := <-ch:
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// if received != msg {
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// t.Fatalf("Wanted to receive %s but got %s", msg, received)
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// }
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// case <-time.After(500 * time.Millisecond):
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// t.Fatalf("Did not receive message in time. Wanted: %s", msg)
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// }
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// }
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func expectExit(t *testing.T, ch chan struct{}) {
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select {
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case <-ch:
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return
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case <-time.After(500 * time.Millisecond):
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t.Fatalf("Did not receive exit signal in time")
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}
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}
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// func expectExit(t *testing.T, ch chan struct{}) {
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// select {
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// case <-ch:
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// return
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// case <-time.After(500 * time.Millisecond):
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// t.Fatalf("Did not receive exit signal in time")
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// }
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// }
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// ##### Mocks #####
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// // ##### Mocks #####
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// Logger
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// // Logger
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type mockLogger struct {
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Info chan string
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Error chan string
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Event chan string
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}
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// type mockLogger struct {
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// Info chan string
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// Error chan string
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// Event chan string
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// }
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func newMockLogger() *mockLogger {
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return &mockLogger{
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Info: make(chan string, 10),
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Error: make(chan string, 10),
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Event: make(chan string, 10),
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}
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}
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// func newMockLogger() *mockLogger {
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// return &mockLogger{
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// Info: make(chan string, 10),
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// Error: make(chan string, 10),
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// Event: make(chan string, 10),
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// }
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// }
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func (l *mockLogger) Infof(format string, v ...interface{}) {
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l.Info <- fmt.Sprintf(format, v...)
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}
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// func (l *mockLogger) Infof(format string, v ...interface{}) {
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// l.Info <- fmt.Sprintf(format, v...)
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// }
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func (l *mockLogger) Errorf(format string, v ...interface{}) {
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l.Error <- fmt.Sprintf(format, v...)
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}
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// func (l *mockLogger) Errorf(format string, v ...interface{}) {
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// l.Error <- fmt.Sprintf(format, v...)
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// }
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func (l *mockLogger) Eventf(format string, v ...interface{}) {
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l.Event <- fmt.Sprintf(format, v...)
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}
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// func (l *mockLogger) Eventf(format string, v ...interface{}) {
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// l.Event <- fmt.Sprintf(format, v...)
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// }
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// InotfiyWatcher
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// // InotfiyWatcher
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type mockInotifyWatcher struct {
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triggerCh chan struct{}
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fsEventCh chan string
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setupErr error
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closed bool
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}
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// type mockFSWatcher struct {
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// initErrCh chan error
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// initDoneCh chan struct{}
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// runTriggerCh chan struct{}
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// runEventCh chan struct{}
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// runErrorCh chan struct{}
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// closed bool
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// }
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func newMockInotifyWatcher(setupErr error) *mockInotifyWatcher {
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return &mockInotifyWatcher{
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triggerCh: make(chan struct{}),
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fsEventCh: make(chan string),
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setupErr: setupErr,
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closed: false,
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}
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}
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// func newMockFSWatcher() *mockFSWatcher {
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// return &mockFSWatcher{}
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// }
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func (i *mockInotifyWatcher) Start(rdirs, dirs []string, errCh chan error) (chan struct{}, chan string, error) {
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if i.setupErr != nil {
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return nil, nil, i.setupErr
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}
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return i.triggerCh, i.fsEventCh, nil
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}
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// func (fs *mockFSWatcher) Init(rdirs, dirs []string) (chan error, chan struct{}) {
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// fs.initErrCh = make(chan error)
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// fs.initDoneCh = make(chan struct{})
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// return fs.initErrCh, fs.initDoneCh
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// }
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func (i mockInotifyWatcher) Close() {
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i.closed = true
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}
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// func (fs *mockFSWatcher) Run() (chan struct{}, chan string, chan error) {
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// fs.runTriggerCh, fs.runEventCh, fs.runErrorCh = make(chan struct{}), make(chan string), make(chan error)
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// return fs.runTriggerCh, fs.runEventCh, fs.runErrorCh
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// }
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// ProcfsScanner
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// func (i mockFSWatcher) Close() {
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// i.closed = true
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// }
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type mockProcfsScanner struct {
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triggerCh chan struct{}
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interval time.Duration
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psEventCh chan string
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setupErr error
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}
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// // ProcfsScanner
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func newMockProcfsScanner(setupErr error) *mockProcfsScanner {
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return &mockProcfsScanner{
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psEventCh: make(chan string),
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setupErr: setupErr,
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}
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}
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// type mockProcfsScanner struct {
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// triggerCh chan struct{}
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// interval time.Duration
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// psEventCh chan string
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// setupErr error
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// }
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func (p *mockProcfsScanner) Setup(triggerCh chan struct{}, interval time.Duration) (chan string, error) {
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if p.setupErr != nil {
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return nil, p.setupErr
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}
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return p.psEventCh, nil
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}
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// func newMockProcfsScanner(setupErr error) *mockProcfsScanner {
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// return &mockProcfsScanner{
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// psEventCh: make(chan string),
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// setupErr: setupErr,
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// }
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// }
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// func (p *mockProcfsScanner) Setup(triggerCh chan struct{}, interval time.Duration) (chan string, error) {
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// if p.setupErr != nil {
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// return nil, p.setupErr
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// }
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// return p.psEventCh, nil
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// }
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