// Ensure that a leader can be set and read.
func TestModLeaderSet(t *testing.T) {
tests.RunServer(func(s *server.Server) {
// Set leader.
body, status, err := testSetLeader(s, "foo", "xxx", 10)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
// Check that the leader is set.
body, status, err = testGetLeader(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "xxx")
// Delete leader.
body, status, err = testDeleteLeader(s, "foo", "xxx")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "")
// Check that the leader is removed.
body, status, err = testGetLeader(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "")
})
}
// Ensures a unique value is added to the key's children.
//
// $ curl -X POST localhost:4001/v2/keys/foo/bar
// $ curl -X POST localhost:4001/v2/keys/foo/bar
// $ curl -X POST localhost:4001/v2/keys/foo/baz
//
func TestV2CreateUnique(t *testing.T) {
tests.RunServer(func(s *server.Server) {
// POST should add index to list.
fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
resp, _ := tests.PostForm(fullURL, nil)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["action"], "create", "")
node := body["node"].(map[string]interface{})
assert.Equal(t, node["key"], "/foo/bar/2", "")
assert.Nil(t, node["dir"], "")
assert.Equal(t, node["modifiedIndex"], 2, "")
// Second POST should add next index to list.
resp, _ = tests.PostForm(fullURL, nil)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
body = tests.ReadBodyJSON(resp)
node = body["node"].(map[string]interface{})
assert.Equal(t, node["key"], "/foo/bar/3", "")
// POST to a different key should add index to that list.
resp, _ = tests.PostForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/baz"), nil)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
body = tests.ReadBodyJSON(resp)
node = body["node"].(map[string]interface{})
assert.Equal(t, node["key"], "/foo/baz/4", "")
})
}
// Ensure that a lock can be acquired with a value and released by value.
func TestModLockAcquireAndReleaseByValue(t *testing.T) {
tests.RunServer(func(s *server.Server) {
// Acquire lock.
body, status, err := testAcquireLock(s, "foo", "XXX", 10)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
// Check that we have the lock.
body, status, err = testGetLockValue(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "XXX")
// Release lock.
body, status, err = testReleaseLock(s, "foo", "", "XXX")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "")
// Check that we released the lock.
body, status, err = testGetLockValue(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "")
})
}
// TestDiscoveryDownWithBackupPeers ensures that etcd runs if it is started with a
// bad discovery URL and a peer list.
func TestDiscoveryDownWithBackupPeers(t *testing.T) {
etcdtest.RunServer(func(s *server.Server) {
g := garbageHandler{t: t}
ts := httptest.NewServer(&g)
defer ts.Close()
discover := ts.URL + "/v2/keys/_etcd/registry/1"
u, ok := s.PeerURL("ETCDTEST")
if !ok {
t.Fatalf("Couldn't find the URL")
}
proc, err := startServer([]string{"-discovery", discover, "-peers", u})
if err != nil {
t.Fatal(err.Error())
}
defer stopServer(proc)
client := http.Client{}
err = assertServerFunctional(client, "http")
if err != nil {
t.Fatal(err.Error())
}
if !g.success {
t.Fatal("Discovery server never called")
}
})
}
// Ensure that a leader can be renewed.
func TestModLeaderRenew(t *testing.T) {
tests.RunServer(func(s *server.Server) {
// Set leader.
body, status, err := testSetLeader(s, "foo", "xxx", 2)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
time.Sleep(1 * time.Second)
// Renew leader.
body, status, err = testSetLeader(s, "foo", "xxx", 3)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
time.Sleep(2 * time.Second)
// Check that the leader is set.
body, status, err = testGetLeader(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "xxx")
})
}
// TestDiscoverySecondPeerFirstNoResponse ensures that if the first etcd
// machine stops after heartbeating that the second machine fails too.
func TestDiscoverySecondPeerFirstNoResponse(t *testing.T) {
etcdtest.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "started")
resp, err := etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/2/_state"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
v = url.Values{}
v.Set("value", "http://127.0.0.1:49151")
resp, err = etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/2/ETCDTEST"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
proc, err := startServer([]string{"-retry-interval", "0.2", "-discovery", s.URL() + "/v2/keys/_etcd/registry/2"})
if err != nil {
t.Fatal(err.Error())
}
defer stopServer(proc)
// TODO(bp): etcd will take 30 seconds to shutdown, figure this
// out instead
time.Sleep(1 * time.Second)
client := http.Client{}
_, err = client.Get("/")
if err != nil && strings.Contains(err.Error(), "connection reset by peer") {
t.Fatal(err.Error())
}
})
}
// Ensure that a lock can be acquired and another process is blocked until released.
func TestModLockBlockUntilAcquire(t *testing.T) {
tests.RunServer(func(s *server.Server) {
c := make(chan bool)
// Acquire lock #1.
go func() {
body, status, err := testAcquireLock(s, "foo", "", 10)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
c <- true
}()
<-c
// Acquire lock #2.
waiting := true
go func() {
c <- true
body, status, err := testAcquireLock(s, "foo", "", 10)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "4")
waiting = false
}()
<-c
time.Sleep(1 * time.Second)
// Check that we have the lock #1.
body, status, err := testGetLockIndex(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
// Check that we are still waiting for lock #2.
assert.Equal(t, waiting, true)
// Release lock #1.
_, status, err = testReleaseLock(s, "foo", "2", "")
assert.NoError(t, err)
assert.Equal(t, status, 200)
// Check that we have lock #2.
body, status, err = testGetLockIndex(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "4")
// Release lock #2.
_, status, err = testReleaseLock(s, "foo", "4", "")
assert.NoError(t, err)
assert.Equal(t, status, 200)
// Check that we have no lock.
body, status, err = testGetLockIndex(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "")
})
}
// Ensures that a directory is created
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar?dir=true
//
func TestV2SetDirectory(t *testing.T) {
tests.RunServer(func(s *server.Server) {
resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?dir=true"), url.Values{})
assert.Equal(t, resp.StatusCode, http.StatusCreated)
body := tests.ReadBody(resp)
assert.Nil(t, err, "")
assert.Equal(t, string(body), `{"action":"set","node":{"key":"/foo","dir":true,"modifiedIndex":2,"createdIndex":2}}`, "")
})
}
// Ensures that a directory is deleted when recursive is set.
//
// $ curl -X PUT localhost:4001/v2/keys/foo?dir=true
// $ curl -X DELETE localhost:4001/v2/keys/foo?recursive=true
//
func TestV2DeleteDirectoryRecursiveImpliesDir(t *testing.T) {
tests.RunServer(func(s *server.Server) {
resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?dir=true"), url.Values{})
tests.ReadBody(resp)
resp, err = tests.DeleteForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?recursive=true"), url.Values{})
assert.Equal(t, resp.StatusCode, http.StatusOK)
body := tests.ReadBody(resp)
assert.Nil(t, err, "")
assert.Equal(t, string(body), `{"action":"delete","node":{"key":"/foo","dir":true,"modifiedIndex":3,"createdIndex":2},"prevNode":{"key":"/foo","dir":true,"modifiedIndex":2,"createdIndex":2}}`, "")
})
}
// Ensures that a key is set to a given value.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
//
func TestV2SetKey(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
body := tests.ReadBody(resp)
assert.Nil(t, err, "")
assert.Equal(t, string(body), `{"action":"set","node":{"key":"/foo/bar","value":"XXX","modifiedIndex":2,"createdIndex":2}}`, "")
})
}
// Ensures that an error is thrown if an invalid previous value is provided.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
// $ curl -X DELETE localhost:4001/v2/keys/foo/bar?prevIndex=
//
func TestV2DeleteKeyCADWithInvalidValue(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
tests.ReadBody(resp)
resp, _ = tests.DeleteForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar?prevValue="), v)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 201)
})
}
// Ensures that a key is not deleted if the previous index does not match
//
// $ curl -X PUT localhost:4001/v2/keys/foo -d value=XXX
// $ curl -X DELETE localhost:4001/v2/keys/foo?prevIndex=100
//
func TestV2DeleteKeyCADOnIndexFail(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo"), v)
tests.ReadBody(resp)
resp, err = tests.DeleteForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?prevIndex=100"), url.Values{})
assert.Nil(t, err, "")
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 101)
})
}
// Ensures that a key is conditionally set if it previously did not exist.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d prevExist=false
//
func TestV2CreateKeySuccess(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
v.Set("prevExist", "false")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
body := tests.ReadBodyJSON(resp)
node := body["node"].(map[string]interface{})
assert.Equal(t, node["value"], "XXX", "")
})
}
// TestDiscoverySecondPeerUp ensures that a second peer joining a discovery
// cluster works.
func TestDiscoverySecondPeerUp(t *testing.T) {
etcdtest.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "started")
resp, err := etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/3/_state"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
u, ok := s.PeerURL("ETCDTEST")
if !ok {
t.Fatalf("Couldn't find the URL")
}
wc := goetcd.NewClient([]string{s.URL()})
testResp, err := wc.Set("test", "0", 0)
if err != nil {
t.Fatalf("Couldn't set a test key on the leader %v", err)
}
v = url.Values{}
v.Set("value", u)
resp, err = etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/3/ETCDTEST"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
proc, err := startServer([]string{"-discovery", s.URL() + "/v2/keys/_etcd/registry/3"})
if err != nil {
t.Fatal(err.Error())
}
defer stopServer(proc)
watch := fmt.Sprintf("%s%s%d", s.URL(), "/v2/keys/_etcd/registry/3/node1?wait=true&waitIndex=", testResp.EtcdIndex)
resp, err = http.Get(watch)
if err != nil {
t.Fatal(err.Error())
}
// TODO(bp): need to have a better way of knowing a machine is up
for i := 0; i < 10; i++ {
time.Sleep(1 * time.Second)
etcdc := goetcd.NewClient(nil)
_, err = etcdc.Set("foobar", "baz", 0)
if err == nil {
break
}
}
if err != nil {
t.Fatal(err.Error())
}
})
}
// Ensures that an invalid time-to-live is returned as an error.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d ttl=bad_ttl
//
func TestV2SetKeyWithBadTTL(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
v.Set("ttl", "bad_ttl")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
assert.Equal(t, resp.StatusCode, http.StatusBadRequest)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 202, "")
assert.Equal(t, body["message"], "The given TTL in POST form is not a number", "")
assert.Equal(t, body["cause"], "Update", "")
})
}
// Ensures that an error is returned if a blank prevValue is set.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d prevValue=
//
func TestV2SetKeyCASWithMissingValueFails(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
v.Set("prevValue", "")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
assert.Equal(t, resp.StatusCode, http.StatusBadRequest)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 201, "")
assert.Equal(t, body["message"], "PrevValue is Required in POST form", "")
assert.Equal(t, body["cause"], "CompareAndSwap", "")
})
}
// Ensures that an error is thrown if an invalid previous index is provided.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=YYY -d prevIndex=bad_index
//
func TestV2SetKeyCASWithInvalidIndex(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "YYY")
v.Set("prevIndex", "bad_index")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
assert.Equal(t, resp.StatusCode, http.StatusBadRequest)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 203, "")
assert.Equal(t, body["message"], "The given index in POST form is not a number", "")
assert.Equal(t, body["cause"], "CompareAndSwap", "")
})
}
// Ensures that a key is deleted only if the previous value matches.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
// $ curl -X DELETE localhost:4001/v2/keys/foo/bar?prevValue=XXX
//
func TestV2DeleteKeyCADOnValueSuccess(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
tests.ReadBody(resp)
resp, _ = tests.DeleteForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar?prevValue=XXX"), v)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["action"], "compareAndDelete", "")
node := body["node"].(map[string]interface{})
assert.Equal(t, node["modifiedIndex"], 3, "")
})
}
// TestDiscoveryFirstPeer ensures that etcd starts as the leader if it
// registers as the first peer.
func TestDiscoveryFirstPeer(t *testing.T) {
etcdtest.RunServer(func(s *server.Server) {
proc, err := startServer([]string{"-discovery", s.URL() + "/v2/keys/_etcd/registry/2"})
if err != nil {
t.Fatal(err.Error())
}
defer stopServer(proc)
client := http.Client{}
err = assertServerFunctional(client, "http")
if err != nil {
t.Fatal(err.Error())
}
})
}
// Ensures that a watcher can wait for a value to be set after a given index.
//
// $ curl localhost:4001/v2/keys/foo/bar?wait=true&waitIndex=4
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=YYY
//
func TestV2WatchKeyWithIndex(t *testing.T) {
tests.RunServer(func(s *server.Server) {
var body map[string]interface{}
c := make(chan bool)
go func() {
resp, _ := tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar?wait=true&waitIndex=3"))
body = tests.ReadBodyJSON(resp)
c <- true
}()
// Make sure response didn't fire early.
time.Sleep(1 * time.Millisecond)
assert.Nil(t, body, "")
// Set a value (before given index).
v := url.Values{}
v.Set("value", "XXX")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
tests.ReadBody(resp)
// Make sure response didn't fire early.
time.Sleep(1 * time.Millisecond)
assert.Nil(t, body, "")
// Set a value (before given index).
v.Set("value", "YYY")
resp, _ = tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
tests.ReadBody(resp)
// A response should follow from the GET above.
time.Sleep(1 * time.Millisecond)
select {
case <-c:
default:
t.Fatal("cannot get watch result")
}
assert.NotNil(t, body, "")
assert.Equal(t, body["action"], "set", "")
node := body["node"].(map[string]interface{})
assert.Equal(t, node["key"], "/foo/bar", "")
assert.Equal(t, node["value"], "YYY", "")
assert.Equal(t, node["modifiedIndex"], 3, "")
})
}
// Ensures that a key is not conditionally set if it previously did not exist.
//
// $ curl -X PUT localhost:4001/v2/keys/foo?dir=true
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d prevExist=true
//
func TestV2UpdateKeyFailOnValue(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?dir=true"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
v.Set("value", "YYY")
v.Set("prevExist", "true")
resp, _ = tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
assert.Equal(t, resp.StatusCode, http.StatusNotFound)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 100, "")
assert.Equal(t, body["message"], "Key not found", "")
assert.Equal(t, body["cause"], "/foo/bar", "")
})
}
// Ensures that a time-to-live is added to a key.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d ttl=20
//
func TestV2SetKeyWithTTL(t *testing.T) {
tests.RunServer(func(s *server.Server) {
t0 := time.Now()
v := url.Values{}
v.Set("value", "XXX")
v.Set("ttl", "20")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
body := tests.ReadBodyJSON(resp)
node := body["node"].(map[string]interface{})
assert.Equal(t, node["ttl"], 20, "")
// Make sure the expiration date is correct.
expiration, _ := time.Parse(time.RFC3339Nano, node["expiration"].(string))
assert.Equal(t, expiration.Sub(t0)/time.Second, 20, "")
})
}
// Ensures that a key is not conditionally set because it previously existed.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d prevExist=false
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d prevExist=false -> fail
//
func TestV2CreateKeyFail(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
v.Set("prevExist", "false")
fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
resp, _ := tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
tests.ReadBody(resp)
resp, _ = tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusPreconditionFailed)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 105, "")
assert.Equal(t, body["message"], "Key already exists", "")
assert.Equal(t, body["cause"], "/foo/bar", "")
})
}
// Ensures that a key is conditionally set only if it previously did exist.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=YYY -d prevExist=true
//
func TestV2UpdateKeySuccess(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
resp, _ := tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
tests.ReadBody(resp)
v.Set("value", "YYY")
v.Set("prevExist", "true")
resp, _ = tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusOK)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["action"], "update", "")
})
}
// Ensures that a key is set only if the previous value matches.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=YYY -d prevValue=XXX
//
func TestV2SetKeyCASOnValueSuccess(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
resp, _ := tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
tests.ReadBody(resp)
v.Set("value", "YYY")
v.Set("prevValue", "XXX")
resp, _ = tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusOK)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["action"], "compareAndSwap", "")
node := body["node"].(map[string]interface{})
assert.Equal(t, node["value"], "YYY", "")
assert.Equal(t, node["modifiedIndex"], 3, "")
})
}
// Ensures that a key is not set if the previous value does not match.
//
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=YYY -d prevValue=AAA
//
func TestV2SetKeyCASOnValueFail(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
resp, _ := tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
tests.ReadBody(resp)
v.Set("value", "YYY")
v.Set("prevValue", "AAA")
resp, _ = tests.PutForm(fullURL, v)
assert.Equal(t, resp.StatusCode, http.StatusPreconditionFailed)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["errorCode"], 101, "")
assert.Equal(t, body["message"], "Compare failed", "")
assert.Equal(t, body["cause"], "[AAA != XXX] [0 != 2]", "")
assert.Equal(t, body["index"], 2, "")
})
}
// Ensure that a lock will be released after the TTL.
func TestModLockExpireAndRelease(t *testing.T) {
tests.RunServer(func(s *server.Server) {
c := make(chan bool)
// Acquire lock #1.
go func() {
body, status, err := testAcquireLock(s, "foo", "", 2)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
c <- true
}()
<-c
// Acquire lock #2.
go func() {
c <- true
body, status, err := testAcquireLock(s, "foo", "", 10)
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "4")
}()
<-c
time.Sleep(1 * time.Second)
// Check that we have the lock #1.
body, status, err := testGetLockIndex(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "2")
// Wait for lock #1 TTL.
time.Sleep(2 * time.Second)
// Check that we have lock #2.
body, status, err = testGetLockIndex(s, "foo")
assert.NoError(t, err)
assert.Equal(t, status, 200)
assert.Equal(t, body, "4")
})
}
// TestDiscoverySecondPeerFirstDown ensures that etcd stops if it is started with a
// correct discovery URL but no active machines are found.
func TestDiscoverySecondPeerFirstDown(t *testing.T) {
etcdtest.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "started")
resp, err := etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/2/_state"), v)
assert.Equal(t, resp.StatusCode, http.StatusCreated)
proc, err := startServer([]string{"-discovery", s.URL() + "/v2/keys/_etcd/registry/2"})
if err != nil {
t.Fatal(err.Error())
}
defer stopServer(proc)
client := http.Client{}
err = assertServerNotUp(client, "http")
if err != nil {
t.Fatal(err.Error())
}
})
}
// Ensures that a watcher can wait for a value to be set after a given index.
//
// $ curl localhost:4001/v2/keys/keyindir/bar?wait=true
// $ curl -X PUT localhost:4001/v2/keys/keyindir -d dir=true -d ttl=1
// $ curl -X PUT localhost:4001/v2/keys/keyindir/bar -d value=YYY
//
func TestV2WatchKeyInDir(t *testing.T) {
tests.RunServer(func(s *server.Server) {
var body map[string]interface{}
c := make(chan bool)
// Set a value (before given index).
v := url.Values{}
v.Set("dir", "true")
v.Set("ttl", "1")
resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/keyindir"), v)
tests.ReadBody(resp)
// Set a value (before given index).
v = url.Values{}
v.Set("value", "XXX")
resp, _ = tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/keyindir/bar"), v)
tests.ReadBody(resp)
go func() {
resp, _ := tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/keyindir/bar?wait=true"))
body = tests.ReadBodyJSON(resp)
c <- true
}()
// wait for expiration, we do have a up to 500 millisecond delay
time.Sleep(2000 * time.Millisecond)
select {
case <-c:
default:
t.Fatal("cannot get watch result")
}
assert.NotNil(t, body, "")
assert.Equal(t, body["action"], "expire", "")
node := body["node"].(map[string]interface{})
assert.Equal(t, node["key"], "/keyindir", "")
})
}
// Ensures that a value can be retrieve for a given key.
//
// $ curl localhost:4001/v2/keys/foo/bar -> fail
// $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
// $ curl localhost:4001/v2/keys/foo/bar
//
func TestV2GetKey(t *testing.T) {
tests.RunServer(func(s *server.Server) {
v := url.Values{}
v.Set("value", "XXX")
fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
resp, _ := tests.Get(fullURL)
assert.Equal(t, resp.StatusCode, http.StatusNotFound)
resp, _ = tests.PutForm(fullURL, v)
tests.ReadBody(resp)
resp, _ = tests.Get(fullURL)
assert.Equal(t, resp.StatusCode, http.StatusOK)
body := tests.ReadBodyJSON(resp)
assert.Equal(t, body["action"], "get", "")
node := body["node"].(map[string]interface{})
assert.Equal(t, node["key"], "/foo/bar", "")
assert.Equal(t, node["value"], "XXX", "")
assert.Equal(t, node["modifiedIndex"], 2, "")
})
}