https://github.com/etcd-io/etcd
Tip revision: fdde8705f5bf9a6d9dbfb0220caf2ee1ac816be8 authored by Gyuho Lee on 24 April 2018, 19:05:29 UTC
version: 3.3.4
version: 3.3.4
Tip revision: fdde870
store_test.go
// Copyright 2015 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package store_test
import (
"testing"
"time"
etcdErr "github.com/coreos/etcd/error"
"github.com/coreos/etcd/pkg/testutil"
"github.com/coreos/etcd/store"
)
type StoreCloser interface {
store.Store
Close()
}
func TestNewStoreWithNamespaces(t *testing.T) {
s := newTestStore(t, "/0", "/1")
defer s.Close()
_, err := s.Get("/0", false, false)
testutil.AssertNil(t, err)
_, err = s.Get("/1", false, false)
testutil.AssertNil(t, err)
}
// Ensure that the store can retrieve an existing value.
func TestStoreGetValue(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
var eidx uint64 = 1
e, err := s.Get("/foo", false, false)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "get")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertEqual(t, *e.Node.Value, "bar")
}
// Ensure that the store can retrieve a directory in sorted order.
func TestStoreGetSorted(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
s.Create("/foo/x", false, "0", false, store.TTLOptionSet{ExpireTime: store.Permanent})
s.Create("/foo/z", false, "0", false, store.TTLOptionSet{ExpireTime: store.Permanent})
s.Create("/foo/y", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
s.Create("/foo/y/a", false, "0", false, store.TTLOptionSet{ExpireTime: store.Permanent})
s.Create("/foo/y/b", false, "0", false, store.TTLOptionSet{ExpireTime: store.Permanent})
var eidx uint64 = 6
e, err := s.Get("/foo", true, true)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
var yNodes store.NodeExterns
sortedStrings := []string{"/foo/x", "/foo/y", "/foo/z"}
for i := range e.Node.Nodes {
node := e.Node.Nodes[i]
if node.Key != sortedStrings[i] {
t.Errorf("expect key = %s, got key = %s", sortedStrings[i], node.Key)
}
if node.Key == "/foo/y" {
yNodes = node.Nodes
}
}
sortedStrings = []string{"/foo/y/a", "/foo/y/b"}
for i := range yNodes {
node := yNodes[i]
if node.Key != sortedStrings[i] {
t.Errorf("expect key = %s, got key = %s", sortedStrings[i], node.Key)
}
}
}
func TestSet(t *testing.T) {
s := newTestStore(t)
defer s.Close()
// Set /foo=""
var eidx uint64 = 1
e, err := s.Set("/foo", false, "", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "set")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertFalse(t, e.Node.Dir)
testutil.AssertEqual(t, *e.Node.Value, "")
testutil.AssertNil(t, e.Node.Nodes)
testutil.AssertNil(t, e.Node.Expiration)
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(1))
// Set /foo="bar"
eidx = 2
e, err = s.Set("/foo", false, "bar", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "set")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertFalse(t, e.Node.Dir)
testutil.AssertEqual(t, *e.Node.Value, "bar")
testutil.AssertNil(t, e.Node.Nodes)
testutil.AssertNil(t, e.Node.Expiration)
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(2))
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "")
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(1))
// Set /foo="baz" (for testing prevNode)
eidx = 3
e, err = s.Set("/foo", false, "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "set")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertFalse(t, e.Node.Dir)
testutil.AssertEqual(t, *e.Node.Value, "baz")
testutil.AssertNil(t, e.Node.Nodes)
testutil.AssertNil(t, e.Node.Expiration)
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(3))
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "bar")
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(2))
// Set /dir as a directory
eidx = 4
e, err = s.Set("/dir", true, "", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "set")
testutil.AssertEqual(t, e.Node.Key, "/dir")
testutil.AssertTrue(t, e.Node.Dir)
testutil.AssertNil(t, e.Node.Value)
testutil.AssertNil(t, e.Node.Nodes)
testutil.AssertNil(t, e.Node.Expiration)
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(4))
}
// Ensure that the store can create a new key if it doesn't already exist.
func TestStoreCreateValue(t *testing.T) {
s := newTestStore(t)
defer s.Close()
// Create /foo=bar
var eidx uint64 = 1
e, err := s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertFalse(t, e.Node.Dir)
testutil.AssertEqual(t, *e.Node.Value, "bar")
testutil.AssertNil(t, e.Node.Nodes)
testutil.AssertNil(t, e.Node.Expiration)
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(1))
// Create /empty=""
eidx = 2
e, err = s.Create("/empty", false, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/empty")
testutil.AssertFalse(t, e.Node.Dir)
testutil.AssertEqual(t, *e.Node.Value, "")
testutil.AssertNil(t, e.Node.Nodes)
testutil.AssertNil(t, e.Node.Expiration)
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(2))
}
// Ensure that the store can create a new directory if it doesn't already exist.
func TestStoreCreateDirectory(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
e, err := s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertTrue(t, e.Node.Dir)
}
// Ensure that the store fails to create a key if it already exists.
func TestStoreCreateFailsIfExists(t *testing.T) {
s := newTestStore(t)
defer s.Close()
// create /foo as dir
s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
// create /foo as dir again
e, _err := s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeNodeExist)
testutil.AssertEqual(t, err.Message, "Key already exists")
testutil.AssertEqual(t, err.Cause, "/foo")
testutil.AssertEqual(t, err.Index, uint64(1))
testutil.AssertNil(t, e)
}
// Ensure that the store can update a key if it already exists.
func TestStoreUpdateValue(t *testing.T) {
s := newTestStore(t)
defer s.Close()
// create /foo=bar
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
// update /foo="bzr"
var eidx uint64 = 2
e, err := s.Update("/foo", "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "update")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertFalse(t, e.Node.Dir)
testutil.AssertEqual(t, *e.Node.Value, "baz")
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(2))
// check prevNode
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "bar")
testutil.AssertEqual(t, e.PrevNode.TTL, int64(0))
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(1))
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, *e.Node.Value, "baz")
testutil.AssertEqual(t, e.EtcdIndex, eidx)
// update /foo=""
eidx = 3
e, err = s.Update("/foo", "", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "update")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertFalse(t, e.Node.Dir)
testutil.AssertEqual(t, *e.Node.Value, "")
testutil.AssertEqual(t, e.Node.TTL, int64(0))
testutil.AssertEqual(t, e.Node.ModifiedIndex, uint64(3))
// check prevNode
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "baz")
testutil.AssertEqual(t, e.PrevNode.TTL, int64(0))
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(2))
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, *e.Node.Value, "")
}
// Ensure that the store cannot update a directory.
func TestStoreUpdateFailsIfDirectory(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, _err := s.Update("/foo", "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeNotFile)
testutil.AssertEqual(t, err.Message, "Not a file")
testutil.AssertEqual(t, err.Cause, "/foo")
testutil.AssertNil(t, e)
}
// Ensure that the store can delete a value.
func TestStoreDeleteValue(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 2
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, err := s.Delete("/foo", false, false)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "delete")
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "bar")
}
// Ensure that the store can delete a directory if recursive is specified.
func TestStoreDeleteDirectory(t *testing.T) {
s := newTestStore(t)
defer s.Close()
// create directory /foo
var eidx uint64 = 2
s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
// delete /foo with dir = true and recursive = false
// this should succeed, since the directory is empty
e, err := s.Delete("/foo", true, false)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "delete")
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, e.PrevNode.Dir, true)
// create directory /foo and directory /foo/bar
_, err = s.Create("/foo/bar", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
// delete /foo with dir = true and recursive = false
// this should fail, since the directory is not empty
_, err = s.Delete("/foo", true, false)
testutil.AssertNotNil(t, err)
// delete /foo with dir=false and recursive = true
// this should succeed, since recursive implies dir=true
// and recursively delete should be able to delete all
// items under the given directory
e, err = s.Delete("/foo", false, true)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.Action, "delete")
}
// Ensure that the store cannot delete a directory if both of recursive
// and dir are not specified.
func TestStoreDeleteDirectoryFailsIfNonRecursiveAndDir(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, _err := s.Delete("/foo", false, false)
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeNotFile)
testutil.AssertEqual(t, err.Message, "Not a file")
testutil.AssertNil(t, e)
}
func TestRootRdOnly(t *testing.T) {
s := newTestStore(t, "/0")
defer s.Close()
for _, tt := range []string{"/", "/0"} {
_, err := s.Set(tt, true, "", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNotNil(t, err)
_, err = s.Delete(tt, true, true)
testutil.AssertNotNil(t, err)
_, err = s.Create(tt, true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNotNil(t, err)
_, err = s.Update(tt, "", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNotNil(t, err)
_, err = s.CompareAndSwap(tt, "", 0, "", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNotNil(t, err)
}
}
func TestStoreCompareAndDeletePrevValue(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 2
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, err := s.CompareAndDelete("/foo", "bar", 0)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "compareAndDelete")
testutil.AssertEqual(t, e.Node.Key, "/foo")
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "bar")
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(1))
testutil.AssertEqual(t, e.PrevNode.CreatedIndex, uint64(1))
}
func TestStoreCompareAndDeletePrevValueFailsIfNotMatch(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, _err := s.CompareAndDelete("/foo", "baz", 0)
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeTestFailed)
testutil.AssertEqual(t, err.Message, "Compare failed")
testutil.AssertNil(t, e)
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, *e.Node.Value, "bar")
}
func TestStoreCompareAndDeletePrevIndex(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 2
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, err := s.CompareAndDelete("/foo", "", 1)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "compareAndDelete")
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "bar")
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(1))
testutil.AssertEqual(t, e.PrevNode.CreatedIndex, uint64(1))
}
func TestStoreCompareAndDeletePrevIndexFailsIfNotMatch(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, _err := s.CompareAndDelete("/foo", "", 100)
testutil.AssertNotNil(t, _err)
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeTestFailed)
testutil.AssertEqual(t, err.Message, "Compare failed")
testutil.AssertNil(t, e)
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, *e.Node.Value, "bar")
}
// Ensure that the store cannot delete a directory.
func TestStoreCompareAndDeleteDirectoryFail(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/foo", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
_, _err := s.CompareAndDelete("/foo", "", 0)
testutil.AssertNotNil(t, _err)
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeNotFile)
}
// Ensure that the store can conditionally update a key if it has a previous value.
func TestStoreCompareAndSwapPrevValue(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 2
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, err := s.CompareAndSwap("/foo", "bar", 0, "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "compareAndSwap")
testutil.AssertEqual(t, *e.Node.Value, "baz")
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "bar")
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(1))
testutil.AssertEqual(t, e.PrevNode.CreatedIndex, uint64(1))
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, *e.Node.Value, "baz")
}
// Ensure that the store cannot conditionally update a key if it has the wrong previous value.
func TestStoreCompareAndSwapPrevValueFailsIfNotMatch(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, _err := s.CompareAndSwap("/foo", "wrong_value", 0, "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeTestFailed)
testutil.AssertEqual(t, err.Message, "Compare failed")
testutil.AssertNil(t, e)
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, *e.Node.Value, "bar")
testutil.AssertEqual(t, e.EtcdIndex, eidx)
}
// Ensure that the store can conditionally update a key if it has a previous index.
func TestStoreCompareAndSwapPrevIndex(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 2
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, err := s.CompareAndSwap("/foo", "", 1, "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
testutil.AssertNil(t, err)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "compareAndSwap")
testutil.AssertEqual(t, *e.Node.Value, "baz")
// check prevNode
testutil.AssertNotNil(t, e.PrevNode)
testutil.AssertEqual(t, e.PrevNode.Key, "/foo")
testutil.AssertEqual(t, *e.PrevNode.Value, "bar")
testutil.AssertEqual(t, e.PrevNode.ModifiedIndex, uint64(1))
testutil.AssertEqual(t, e.PrevNode.CreatedIndex, uint64(1))
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, *e.Node.Value, "baz")
testutil.AssertEqual(t, e.EtcdIndex, eidx)
}
// Ensure that the store cannot conditionally update a key if it has the wrong previous index.
func TestStoreCompareAndSwapPrevIndexFailsIfNotMatch(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e, _err := s.CompareAndSwap("/foo", "", 100, "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
err := _err.(*etcdErr.Error)
testutil.AssertEqual(t, err.ErrorCode, etcdErr.EcodeTestFailed)
testutil.AssertEqual(t, err.Message, "Compare failed")
testutil.AssertNil(t, e)
e, _ = s.Get("/foo", false, false)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, *e.Node.Value, "bar")
}
// Ensure that the store can watch for key creation.
func TestStoreWatchCreate(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 0
w, _ := s.Watch("/foo", false, false, 0)
c := w.EventChan()
testutil.AssertEqual(t, w.StartIndex(), eidx)
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
eidx = 1
e := timeoutSelect(t, c)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/foo")
select {
case e = <-w.EventChan():
testutil.AssertNil(t, e)
case <-time.After(100 * time.Millisecond):
}
}
// Ensure that the store can watch for recursive key creation.
func TestStoreWatchRecursiveCreate(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 0
w, err := s.Watch("/foo", true, false, 0)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, w.StartIndex(), eidx)
eidx = 1
s.Create("/foo/bar", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/foo/bar")
}
// Ensure that the store can watch for key updates.
func TestStoreWatchUpdate(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/foo", false, false, 0)
testutil.AssertEqual(t, w.StartIndex(), eidx)
eidx = 2
s.Update("/foo", "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "update")
testutil.AssertEqual(t, e.Node.Key, "/foo")
}
// Ensure that the store can watch for recursive key updates.
func TestStoreWatchRecursiveUpdate(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo/bar", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, err := s.Watch("/foo", true, false, 0)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, w.StartIndex(), eidx)
eidx = 2
s.Update("/foo/bar", "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "update")
testutil.AssertEqual(t, e.Node.Key, "/foo/bar")
}
// Ensure that the store can watch for key deletions.
func TestStoreWatchDelete(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/foo", false, false, 0)
testutil.AssertEqual(t, w.StartIndex(), eidx)
eidx = 2
s.Delete("/foo", false, false)
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "delete")
testutil.AssertEqual(t, e.Node.Key, "/foo")
}
// Ensure that the store can watch for recursive key deletions.
func TestStoreWatchRecursiveDelete(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo/bar", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, err := s.Watch("/foo", true, false, 0)
testutil.AssertNil(t, err)
testutil.AssertEqual(t, w.StartIndex(), eidx)
eidx = 2
s.Delete("/foo/bar", false, false)
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "delete")
testutil.AssertEqual(t, e.Node.Key, "/foo/bar")
}
// Ensure that the store can watch for CAS updates.
func TestStoreWatchCompareAndSwap(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/foo", false, false, 0)
testutil.AssertEqual(t, w.StartIndex(), eidx)
eidx = 2
s.CompareAndSwap("/foo", "bar", 0, "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "compareAndSwap")
testutil.AssertEqual(t, e.Node.Key, "/foo")
}
// Ensure that the store can watch for recursive CAS updates.
func TestStoreWatchRecursiveCompareAndSwap(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
s.Create("/foo/bar", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/foo", true, false, 0)
testutil.AssertEqual(t, w.StartIndex(), eidx)
eidx = 2
s.CompareAndSwap("/foo/bar", "baz", 0, "bat", store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "compareAndSwap")
testutil.AssertEqual(t, e.Node.Key, "/foo/bar")
}
// Ensure that the store can watch in streaming mode.
func TestStoreWatchStream(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
w, _ := s.Watch("/foo", false, true, 0)
// first modification
s.Create("/foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertEqual(t, *e.Node.Value, "bar")
select {
case e = <-w.EventChan():
testutil.AssertNil(t, e)
case <-time.After(100 * time.Millisecond):
}
// second modification
eidx = 2
s.Update("/foo", "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
e = timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "update")
testutil.AssertEqual(t, e.Node.Key, "/foo")
testutil.AssertEqual(t, *e.Node.Value, "baz")
select {
case e = <-w.EventChan():
testutil.AssertNil(t, e)
case <-time.After(100 * time.Millisecond):
}
}
// Ensure that the store can watch for hidden keys as long as it's an exact path match.
func TestStoreWatchCreateWithHiddenKey(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
w, _ := s.Watch("/_foo", false, false, 0)
s.Create("/_foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/_foo")
select {
case e = <-w.EventChan():
testutil.AssertNil(t, e)
case <-time.After(100 * time.Millisecond):
}
}
// Ensure that the store doesn't see hidden key creates without an exact path match in recursive mode.
func TestStoreWatchRecursiveCreateWithHiddenKey(t *testing.T) {
s := newTestStore(t)
defer s.Close()
w, _ := s.Watch("/foo", true, false, 0)
s.Create("/foo/_bar", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e := nbselect(w.EventChan())
testutil.AssertNil(t, e)
w, _ = s.Watch("/foo", true, false, 0)
s.Create("/foo/_baz", true, "", false, store.TTLOptionSet{ExpireTime: store.Permanent})
select {
case e = <-w.EventChan():
testutil.AssertNil(t, e)
case <-time.After(100 * time.Millisecond):
}
s.Create("/foo/_baz/quux", false, "quux", false, store.TTLOptionSet{ExpireTime: store.Permanent})
select {
case e = <-w.EventChan():
testutil.AssertNil(t, e)
case <-time.After(100 * time.Millisecond):
}
}
// Ensure that the store doesn't see hidden key updates.
func TestStoreWatchUpdateWithHiddenKey(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/_foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/_foo", false, false, 0)
s.Update("/_foo", "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.Action, "update")
testutil.AssertEqual(t, e.Node.Key, "/_foo")
e = nbselect(w.EventChan())
testutil.AssertNil(t, e)
}
// Ensure that the store doesn't see hidden key updates without an exact path match in recursive mode.
func TestStoreWatchRecursiveUpdateWithHiddenKey(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/foo/_bar", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/foo", true, false, 0)
s.Update("/foo/_bar", "baz", store.TTLOptionSet{ExpireTime: store.Permanent})
e := nbselect(w.EventChan())
testutil.AssertNil(t, e)
}
// Ensure that the store can watch for key deletions.
func TestStoreWatchDeleteWithHiddenKey(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 2
s.Create("/_foo", false, "bar", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/_foo", false, false, 0)
s.Delete("/_foo", false, false)
e := timeoutSelect(t, w.EventChan())
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "delete")
testutil.AssertEqual(t, e.Node.Key, "/_foo")
e = nbselect(w.EventChan())
testutil.AssertNil(t, e)
}
// Ensure that the store doesn't see hidden key deletes without an exact path match in recursive mode.
func TestStoreWatchRecursiveDeleteWithHiddenKey(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Create("/foo/_bar", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
w, _ := s.Watch("/foo", true, false, 0)
s.Delete("/foo/_bar", false, false)
e := nbselect(w.EventChan())
testutil.AssertNil(t, e)
}
// Ensure that the store does see hidden key creates if watching deeper than a hidden key in recursive mode.
func TestStoreWatchRecursiveCreateDeeperThanHiddenKey(t *testing.T) {
s := newTestStore(t)
defer s.Close()
var eidx uint64 = 1
w, _ := s.Watch("/_foo/bar", true, false, 0)
s.Create("/_foo/bar/baz", false, "baz", false, store.TTLOptionSet{ExpireTime: store.Permanent})
e := timeoutSelect(t, w.EventChan())
testutil.AssertNotNil(t, e)
testutil.AssertEqual(t, e.EtcdIndex, eidx)
testutil.AssertEqual(t, e.Action, "create")
testutil.AssertEqual(t, e.Node.Key, "/_foo/bar/baz")
}
// Ensure that slow consumers are handled properly.
//
// Since Watcher.EventChan() has a buffer of size 100 we can only queue 100
// event per watcher. If the consumer cannot consume the event on time and
// another event arrives, the channel is closed and event is discarded.
// This test ensures that after closing the channel, the store can continue
// to operate correctly.
func TestStoreWatchSlowConsumer(t *testing.T) {
s := newTestStore(t)
defer s.Close()
s.Watch("/foo", true, true, 0) // stream must be true
// Fill watch channel with 100 events
for i := 1; i <= 100; i++ {
s.Set("/foo", false, string(i), store.TTLOptionSet{ExpireTime: store.Permanent}) // ok
}
// testutil.AssertEqual(t, s.WatcherHub.count, int64(1))
s.Set("/foo", false, "101", store.TTLOptionSet{ExpireTime: store.Permanent}) // ok
// remove watcher
// testutil.AssertEqual(t, s.WatcherHub.count, int64(0))
s.Set("/foo", false, "102", store.TTLOptionSet{ExpireTime: store.Permanent}) // must not panic
}
// Performs a non-blocking select on an event channel.
func nbselect(c <-chan *store.Event) *store.Event {
select {
case e := <-c:
return e
default:
return nil
}
}
// Performs a non-blocking select on an event channel.
func timeoutSelect(t *testing.T, c <-chan *store.Event) *store.Event {
select {
case e := <-c:
return e
case <-time.After(time.Second):
t.Errorf("timed out waiting on event")
return nil
}
}