1 // Copyright 2011 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
13 func expect(t *testing.T, eventstream <-chan *Event, name string, mask uint32) {
14 t.Logf(`expected: "%s": 0x%x`, name, mask)
16 case event := <-eventstream:
18 t.Fatal("nil event received")
20 t.Logf("received: %s", event)
21 if event.Name != name || event.Mask != mask {
22 t.Fatal("did not receive expected event")
24 case <-time.After(1e9):
25 t.Fatal("timed out waiting for event")
29 func TestNotifyEvents(t *testing.T) {
30 watcher, err := NewWatcher()
32 t.Fatalf("NewWatcher() failed: %s", err)
35 testDir := "TestNotifyEvents.testdirectory"
36 testFile := testDir + "/TestNotifyEvents.testfile"
37 testFile2 := testFile + ".new"
38 const mask = FS_ALL_EVENTS & ^(FS_ATTRIB|FS_CLOSE) | FS_IGNORED
40 // Add a watch for testDir
42 if err = os.Mkdir(testDir, 0777); err != nil {
43 t.Fatalf("Failed to create test directory", err)
45 defer os.RemoveAll(testDir)
46 err = watcher.AddWatch(testDir, mask)
48 t.Fatalf("Watcher.Watch() failed: %s", err)
51 // Receive errors on the error channel on a separate goroutine
53 for err := range watcher.Error {
54 t.Fatalf("error received: %s", err)
59 file, err := os.Create(testFile)
61 t.Fatalf("creating test file failed: %s", err)
63 expect(t, watcher.Event, testFile, FS_CREATE)
65 err = watcher.AddWatch(testFile, mask)
67 t.Fatalf("Watcher.Watch() failed: %s", err)
70 if _, err = file.WriteString("hello, world"); err != nil {
71 t.Fatalf("failed to write to test file: %s", err)
73 if err = file.Sync(); err != nil {
74 t.Fatalf("failed to sync test file: %s", err)
76 expect(t, watcher.Event, testFile, FS_MODIFY)
77 expect(t, watcher.Event, testFile, FS_MODIFY)
79 if err = file.Close(); err != nil {
80 t.Fatalf("failed to close test file: %s", err)
83 if err = os.Rename(testFile, testFile2); err != nil {
84 t.Fatalf("failed to rename test file: %s", err)
86 expect(t, watcher.Event, testFile, FS_MOVED_FROM)
87 expect(t, watcher.Event, testFile2, FS_MOVED_TO)
88 expect(t, watcher.Event, testFile, FS_MOVE_SELF)
90 if err = os.RemoveAll(testDir); err != nil {
91 t.Fatalf("failed to remove test directory: %s", err)
93 expect(t, watcher.Event, testFile2, FS_DELETE_SELF)
94 expect(t, watcher.Event, testFile2, FS_IGNORED)
95 expect(t, watcher.Event, testFile2, FS_DELETE)
96 expect(t, watcher.Event, testDir, FS_DELETE_SELF)
97 expect(t, watcher.Event, testDir, FS_IGNORED)
99 t.Log("calling Close()")
100 if err = watcher.Close(); err != nil {
101 t.Fatalf("failed to close watcher: %s", err)
105 func TestNotifyClose(t *testing.T) {
106 watcher, _ := NewWatcher()
115 time.Sleep(50e6) // 50 ms
117 t.Fatal("double Close() test failed: second Close() call didn't return")
120 err := watcher.Watch("_test")
122 t.Fatal("expected error on Watch() after Close(), got nil")