func (s *testSuite) TestNewEtcdClient(c *C) {
if !IsEtcd() {
c.Skip("not etcd")
}
client, err := getEtcdClient()
c.Assert(err, IsNil)
volClient, err := etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
c.Assert(volClient, NotNil)
_, err = client.Get(context.Background(), "/volplugin", nil)
c.Assert(err, IsNil)
volClient, err = etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil, Commentf("%v", err))
c.Assert(volClient, NotNil)
volClient, err = etcd.NewClient(etcdHosts, "testing")
c.Assert(err, IsNil)
c.Assert(volClient, NotNil)
_, err = client.Get(context.Background(), "/testing", nil)
c.Assert(err, IsNil)
}
func (s *testSuite) TestEtcdDown(c *C) {
if !IsEtcd() {
c.Skip("not etcd")
}
volClient, err := etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
c.Assert(exec.Command("/bin/sh", "-c", "sudo systemctl stop etcd").Run(), IsNil)
for {
if err := exec.Command("etcdctl", "cluster-health").Run(); err != nil {
break
}
time.Sleep(time.Second / 4)
}
defer func() {
c.Assert(exec.Command("/bin/sh", "-c", "sudo systemctl start etcd").Run(), IsNil)
for {
if err := exec.Command("etcdctl", "cluster-health").Run(); err == nil {
break
}
time.Sleep(time.Second / 4)
}
}()
policy := db.NewPolicy("policy")
c.Assert(volClient.Set(policy), NotNil)
c.Assert(policy, DeepEquals, db.NewPolicy("policy"))
}
func (s *testSuite) TestCRUD(c *C) {
volClient, err := etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
client, err := getEtcdClient()
c.Assert(err, IsNil)
te := newTestEntity("test", "data")
path, err := te.Path()
c.Assert(err, IsNil)
c.Assert(path, Equals, "test/test")
c.Assert(volClient.Get(te), NotNil)
c.Assert(volClient.Set(te), IsNil)
te = newTestEntity("test", "")
c.Assert(volClient.Get(te), IsNil)
c.Assert(te.SomeData, Equals, "data")
_, err = client.Get(context.Background(), "/volplugin/test/test", nil)
c.Assert(err, IsNil)
entities, err := volClient.List(te)
c.Assert(err, IsNil)
c.Assert(len(entities), Equals, 1)
c.Assert(entities[0].(*testEntity).Name, Equals, "test")
c.Assert(entities[0].(*testEntity).SomeData, Equals, "data")
c.Assert(volClient.Delete(te), IsNil)
c.Assert(volClient.Get(te), NotNil)
}
func (s *testSuite) SetUpTest(c *C) {
errored.AlwaysDebug = true
errored.AlwaysTrace = true
exec.Command("/bin/sh", "-c", "etcdctl rm --recursive /volplugin /testing /test /watch").Run()
var err error
s.client, err = etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
}
func (s *testSuite) SetUpSuite(c *C) {
if os.Getenv("DEBUG") != "" {
errored.AlwaysDebug = true
errored.AlwaysTrace = true
logrus.SetLevel(logrus.DebugLevel)
}
var err error
switch Driver {
case "etcd":
s.client, err = etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
case "consul":
s.client, err = consul.NewClient("volplugin", &api.Config{Address: ":8500"})
c.Assert(err, IsNil)
}
}
func (s *testSuite) TestWatch(c *C) {
volClient, err := etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
te := newTestEntity("test", "")
channel := make(chan interface{}, 10)
retChan, errChan := volClient.Watch(te)
for i := 0; i < 10; i++ {
te2 := te.Copy().(*testEntity)
te2.SomeData = fmt.Sprintf("data%d", i)
setKey(te2)
}
for i := 0; i < 10; i++ {
select {
case err := <-errChan:
c.Assert(err, IsNil, Commentf("select: %v", err)) // this will always fail, assert is just to raise the error.
case ent := <-retChan:
te, ok := ent.(*testEntity)
c.Assert(ok, Equals, true)
c.Assert(te, NotNil)
c.Assert(te.Name, Equals, "test")
c.Assert(string(te.SomeData), Equals, fmt.Sprintf("data%d", i))
}
}
c.Assert(volClient.WatchStop(te), IsNil)
for i := 0; i < 10; i++ {
te2 := te.Copy().(*testEntity)
te2.SomeData = fmt.Sprintf("data%d", i)
setKey(te2)
}
var x = 0
for i := 0; i < 10; i++ {
select {
case <-channel:
x++
default:
}
}
}
func (s *testSuite) TestDump(c *C) {
volClient, err := etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
key := "/volplugin/foo"
value := "baz"
// add test key to etcd
result, err := executor.New(exec.Command("/bin/sh", "-c", "etcdctl set "+key+" "+value)).Run(context.Background())
c.Assert(err, IsNil)
c.Assert(result.ExitStatus, Equals, 0)
// remove test key after the test completes
defer func() {
result, err := executor.New(exec.Command("/bin/sh", "-c", "etcdctl rm "+key)).Run(context.Background())
c.Assert(err, IsNil)
c.Assert(result.ExitStatus, Equals, 0)
}()
tarballPath, err := volClient.Dump("")
c.Assert(err, IsNil)
defer os.Remove(tarballPath)
// check that the tarball was created in the expected spot
_, err = os.Stat(tarballPath)
c.Assert(os.IsNotExist(err), Equals, false)
tarballFilename := filepath.Base(tarballPath)
// can't use filepath.Ext() here because it thinks ".gz" is the extension
dirName := tarballFilename[:strings.LastIndex(tarballFilename, ".tar.gz")]
testFilename := dirName + key
data, err := ioutil.ReadFile(tarballPath)
c.Assert(err, IsNil)
// check that our test key is present and has the expected value
reader := bytes.NewReader(data)
gzReader, err := gzip.NewReader(reader)
c.Assert(err, IsNil)
tarReader := tar.NewReader(gzReader)
found := false
for {
header, err := tarReader.Next()
if err == io.EOF {
break
}
c.Assert(err, IsNil)
if header.Name == testFilename {
var b bytes.Buffer
_, err = io.Copy(&b, tarReader)
c.Assert(err, IsNil)
c.Assert(string(b.Bytes()), Equals, value)
found = true
break
}
}
c.Assert(found, Equals, true)
}
func (s *testSuite) TestHooks(c *C) {
volClient, err := etcd.NewClient(etcdHosts, "volplugin")
c.Assert(err, IsNil)
triggered := &struct{ i int }{i: 0}
te := newTestEntity("test", "")
triggerFunc := func(c db.Client, te db.Entity) error {
triggered.i++
return nil
}
te.hooks.PreSet = triggerFunc
c.Assert(volClient.Set(te), IsNil)
c.Assert(triggered.i, Equals, 1)
triggered.i = 0
te.hooks.PostSet = triggerFunc
c.Assert(volClient.Set(te), IsNil)
c.Assert(triggered.i, Equals, 2)
triggered.i = 0
te.hooks.PreSet = nil
te.hooks.PostSet = nil
c.Assert(volClient.Set(te), IsNil)
c.Assert(triggered.i, Equals, 0)
te.hooks.PreGet = triggerFunc
c.Assert(volClient.Get(te), IsNil)
c.Assert(triggered.i, Equals, 1)
triggered.i = 0
te.hooks.PostGet = triggerFunc
c.Assert(volClient.Get(te), IsNil)
c.Assert(triggered.i, Equals, 2)
triggered.i = 0
te.hooks.PreGet = nil
te.hooks.PostGet = nil
c.Assert(volClient.Get(te), IsNil)
c.Assert(triggered.i, Equals, 0)
te.hooks.PreDelete = triggerFunc
c.Assert(volClient.Delete(te), IsNil)
c.Assert(triggered.i, Equals, 1)
// to test these delete calls, we have to re-set the data.
c.Assert(volClient.Set(te), IsNil)
triggered.i = 0
te.hooks.PostDelete = triggerFunc
c.Assert(volClient.Delete(te), IsNil)
c.Assert(triggered.i, Equals, 2)
// to test these delete calls, we have to re-set the data.
c.Assert(volClient.Set(te), IsNil)
triggered.i = 0
te.hooks.PreDelete = nil
te.hooks.PostDelete = nil
c.Assert(volClient.Delete(te), IsNil)
c.Assert(triggered.i, Equals, 0)
}