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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package winfsnotify
import (
"os"
"testing"
"time"
)
func expect(t *testing.T, eventstream <-chan *Event, name string, mask uint32) {
t.Logf(`expected: "%s": 0x%x`, name, mask)
select {
case event := <-eventstream:
if event == nil {
t.Fatal("nil event received")
}
t.Logf("received: %s", event)
if event.Name != name || event.Mask != mask {
t.Fatal("did not receive expected event")
}
case <-time.After(1e9):
t.Fatal("timed out waiting for event")
}
}
func TestNotifyEvents(t *testing.T) {
watcher, err := NewWatcher()
if err != nil {
t.Fatalf("NewWatcher() failed: %s", err)
}
testDir := "TestNotifyEvents.testdirectory"
testFile := testDir + "/TestNotifyEvents.testfile"
testFile2 := testFile + ".new"
const mask = FS_ALL_EVENTS & ^(FS_ATTRIB|FS_CLOSE) | FS_IGNORED
// Add a watch for testDir
os.RemoveAll(testDir)
if err = os.Mkdir(testDir, 0777); err != nil {
t.Fatalf("Failed to create test directory", err)
}
defer os.RemoveAll(testDir)
err = watcher.AddWatch(testDir, mask)
if err != nil {
t.Fatalf("Watcher.Watch() failed: %s", err)
}
// Receive errors on the error channel on a separate goroutine
go func() {
for err := range watcher.Error {
t.Fatalf("error received: %s", err)
}
}()
// Create a file
file, err := os.Create(testFile)
if err != nil {
t.Fatalf("creating test file failed: %s", err)
}
expect(t, watcher.Event, testFile, FS_CREATE)
err = watcher.AddWatch(testFile, mask)
if err != nil {
t.Fatalf("Watcher.Watch() failed: %s", err)
}
if _, err = file.WriteString("hello, world"); err != nil {
t.Fatalf("failed to write to test file: %s", err)
}
if err = file.Close(); err != nil {
t.Fatalf("failed to close test file: %s", err)
}
expect(t, watcher.Event, testFile, FS_MODIFY)
expect(t, watcher.Event, testFile, FS_MODIFY)
if err = os.Rename(testFile, testFile2); err != nil {
t.Fatalf("failed to rename test file: %s", err)
}
expect(t, watcher.Event, testFile, FS_MOVED_FROM)
expect(t, watcher.Event, testFile2, FS_MOVED_TO)
expect(t, watcher.Event, testFile, FS_MOVE_SELF)
if err = os.RemoveAll(testDir); err != nil {
t.Fatalf("failed to remove test directory: %s", err)
}
expect(t, watcher.Event, testFile2, FS_DELETE_SELF)
expect(t, watcher.Event, testFile2, FS_IGNORED)
expect(t, watcher.Event, testFile2, FS_DELETE)
expect(t, watcher.Event, testDir, FS_DELETE_SELF)
expect(t, watcher.Event, testDir, FS_IGNORED)
t.Log("calling Close()")
if err = watcher.Close(); err != nil {
t.Fatalf("failed to close watcher: %s", err)
}
}
func TestNotifyClose(t *testing.T) {
watcher, _ := NewWatcher()
watcher.Close()
done := false
go func() {
watcher.Close()
done = true
}()
time.Sleep(50e6) // 50 ms
if !done {
t.Fatal("double Close() test failed: second Close() call didn't return")
}
err := watcher.Watch("_test")
if err == nil {
t.Fatal("expected error on Watch() after Close(), got nil")
}
}
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