mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
492 lines
15 KiB
Go
492 lines
15 KiB
Go
/*
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Copyright 2013 CoreOS Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package store
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import (
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"testing"
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"time"
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etcdErr "github.com/coreos/etcd/error"
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"github.com/stretchr/testify/assert"
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)
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// Ensure that the store can retrieve an existing value.
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func TestStoreGetValue(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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e, err := s.Get("/foo", false, false)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "get", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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assert.Equal(t, e.Node.Value, "bar", "")
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}
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// Ensure that the store can recrusively retrieve a directory listing.
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// Note that hidden files should not be returned.
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func TestStoreGetDirectory(t *testing.T) {
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s := newStore()
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s.Create("/foo", "", false, Permanent)
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s.Create("/foo/bar", "X", false, Permanent)
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s.Create("/foo/_hidden", "*", false, Permanent)
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s.Create("/foo/baz", "", false, Permanent)
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s.Create("/foo/baz/bat", "Y", false, Permanent)
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s.Create("/foo/baz/_hidden", "*", false, Permanent)
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s.Create("/foo/baz/ttl", "Y", false, time.Now().Add(time.Second*3))
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e, err := s.Get("/foo", true, false)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "get", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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assert.Equal(t, len(e.Node.Nodes), 2, "")
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assert.Equal(t, e.Node.Nodes[0].Key, "/foo/bar", "")
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assert.Equal(t, e.Node.Nodes[0].Value, "X", "")
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assert.Equal(t, e.Node.Nodes[0].Dir, false, "")
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assert.Equal(t, e.Node.Nodes[1].Key, "/foo/baz", "")
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assert.Equal(t, e.Node.Nodes[1].Dir, true, "")
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assert.Equal(t, len(e.Node.Nodes[1].Nodes), 2, "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[0].Key, "/foo/baz/bat", "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[0].Value, "Y", "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[0].Dir, false, "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[1].Key, "/foo/baz/ttl", "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[1].Value, "Y", "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[1].Dir, false, "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[1].TTL, 3, "")
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}
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// Ensure that the store can retrieve a directory in sorted order.
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func TestStoreGetSorted(t *testing.T) {
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s := newStore()
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s.Create("/foo", "", false, Permanent)
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s.Create("/foo/x", "0", false, Permanent)
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s.Create("/foo/z", "0", false, Permanent)
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s.Create("/foo/y", "", false, Permanent)
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s.Create("/foo/y/a", "0", false, Permanent)
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s.Create("/foo/y/b", "0", false, Permanent)
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e, err := s.Get("/foo", true, true)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Node.Nodes[0].Key, "/foo/x", "")
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assert.Equal(t, e.Node.Nodes[1].Key, "/foo/y", "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[0].Key, "/foo/y/a", "")
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assert.Equal(t, e.Node.Nodes[1].Nodes[1].Key, "/foo/y/b", "")
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assert.Equal(t, e.Node.Nodes[2].Key, "/foo/z", "")
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}
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// Ensure that the store can create a new key if it doesn't already exist.
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func TestStoreCreateValue(t *testing.T) {
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s := newStore()
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e, err := s.Create("/foo", "bar", false, Permanent)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "create", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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assert.False(t, e.Node.Dir, "")
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assert.Equal(t, e.Node.PrevValue, "", "")
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assert.Equal(t, e.Node.Value, "bar", "")
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assert.Nil(t, e.Node.Nodes, "")
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assert.Nil(t, e.Node.Expiration, "")
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assert.Equal(t, e.Node.TTL, 0, "")
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assert.Equal(t, e.Node.ModifiedIndex, uint64(1), "")
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}
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// Ensure that the store can create a new directory if it doesn't already exist.
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func TestStoreCreateDirectory(t *testing.T) {
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s := newStore()
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e, err := s.Create("/foo", "", false, Permanent)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "create", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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assert.True(t, e.Node.Dir, "")
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}
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// Ensure that the store fails to create a key if it already exists.
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func TestStoreCreateFailsIfExists(t *testing.T) {
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s := newStore()
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s.Create("/foo", "", false, Permanent)
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e, _err := s.Create("/foo", "", false, Permanent)
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err := _err.(*etcdErr.Error)
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assert.Equal(t, err.ErrorCode, etcdErr.EcodeNodeExist, "")
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assert.Equal(t, err.Message, "Already exists", "")
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assert.Equal(t, err.Cause, "/foo", "")
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assert.Equal(t, err.Index, uint64(1), "")
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assert.Nil(t, e, 0, "")
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}
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// Ensure that the store can update a key if it already exists.
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func TestStoreUpdateValue(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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e, err := s.Update("/foo", "baz", Permanent)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "update", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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assert.False(t, e.Node.Dir, "")
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assert.Equal(t, e.Node.PrevValue, "bar", "")
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assert.Equal(t, e.Node.Value, "baz", "")
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assert.Equal(t, e.Node.TTL, 0, "")
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assert.Equal(t, e.Node.ModifiedIndex, uint64(2), "")
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e, _ = s.Get("/foo", false, false)
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assert.Equal(t, e.Node.Value, "baz", "")
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}
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// Ensure that the store cannot update a directory.
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func TestStoreUpdateFailsIfDirectory(t *testing.T) {
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s := newStore()
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s.Create("/foo", "", false, Permanent)
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e, _err := s.Update("/foo", "baz", Permanent)
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err := _err.(*etcdErr.Error)
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assert.Equal(t, err.ErrorCode, etcdErr.EcodeNotFile, "")
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assert.Equal(t, err.Message, "Not A File", "")
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assert.Equal(t, err.Cause, "/foo", "")
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assert.Nil(t, e, "")
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}
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// Ensure that the store can update the TTL on a value.
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func TestStoreUpdateValueTTL(t *testing.T) {
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s := newStore()
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c := make(chan bool)
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defer func() {
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c <- true
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}()
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go mockSyncService(s.DeleteExpiredKeys, c)
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s.Create("/foo", "bar", false, Permanent)
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_, err := s.Update("/foo", "baz", time.Now().Add(500*time.Millisecond))
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e, _ := s.Get("/foo", false, false)
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assert.Equal(t, e.Node.Value, "baz", "")
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time.Sleep(600 * time.Millisecond)
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e, err = s.Get("/foo", false, false)
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assert.Nil(t, e, "")
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assert.Equal(t, err.(*etcdErr.Error).ErrorCode, etcdErr.EcodeKeyNotFound, "")
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}
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// Ensure that the store can update the TTL on a directory.
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func TestStoreUpdateDirTTL(t *testing.T) {
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s := newStore()
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c := make(chan bool)
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defer func() {
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c <- true
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}()
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go mockSyncService(s.DeleteExpiredKeys, c)
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s.Create("/foo", "", false, Permanent)
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s.Create("/foo/bar", "baz", false, Permanent)
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_, err := s.Update("/foo", "", time.Now().Add(500*time.Millisecond))
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e, _ := s.Get("/foo/bar", false, false)
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assert.Equal(t, e.Node.Value, "baz", "")
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time.Sleep(600 * time.Millisecond)
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e, err = s.Get("/foo/bar", false, false)
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assert.Nil(t, e, "")
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assert.Equal(t, err.(*etcdErr.Error).ErrorCode, etcdErr.EcodeKeyNotFound, "")
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}
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// Ensure that the store can delete a value.
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func TestStoreDeleteValue(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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e, err := s.Delete("/foo", false)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "delete", "")
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}
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// Ensure that the store can delete a directory if recursive is specified.
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func TestStoreDeleteDiretory(t *testing.T) {
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s := newStore()
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s.Create("/foo", "", false, Permanent)
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e, err := s.Delete("/foo", true)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "delete", "")
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}
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func TestRootRdOnly(t *testing.T) {
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s := newStore()
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_, err := s.Set("/", "", Permanent)
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assert.NotNil(t, err, "")
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_, err = s.Delete("/", true)
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assert.NotNil(t, err, "")
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_, err = s.Create("/", "", false, Permanent)
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assert.NotNil(t, err, "")
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_, err = s.Update("/", "", Permanent)
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assert.NotNil(t, err, "")
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_, err = s.CompareAndSwap("/", "", 0, "", Permanent)
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assert.NotNil(t, err, "")
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}
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// Ensure that the store cannot delete a directory if recursive is not specified.
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func TestStoreDeleteDiretoryFailsIfNonRecursive(t *testing.T) {
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s := newStore()
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s.Create("/foo", "", false, Permanent)
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e, _err := s.Delete("/foo", false)
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err := _err.(*etcdErr.Error)
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assert.Equal(t, err.ErrorCode, etcdErr.EcodeNotFile, "")
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assert.Equal(t, err.Message, "Not A File", "")
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assert.Nil(t, e, "")
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}
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// Ensure that the store can conditionally update a key if it has a previous value.
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func TestStoreCompareAndSwapPrevValue(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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e, err := s.CompareAndSwap("/foo", "bar", 0, "baz", Permanent)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "compareAndSwap", "")
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assert.Equal(t, e.Node.PrevValue, "bar", "")
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assert.Equal(t, e.Node.Value, "baz", "")
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e, _ = s.Get("/foo", false, false)
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assert.Equal(t, e.Node.Value, "baz", "")
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}
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// Ensure that the store cannot conditionally update a key if it has the wrong previous value.
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func TestStoreCompareAndSwapPrevValueFailsIfNotMatch(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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e, _err := s.CompareAndSwap("/foo", "wrong_value", 0, "baz", Permanent)
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err := _err.(*etcdErr.Error)
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assert.Equal(t, err.ErrorCode, etcdErr.EcodeTestFailed, "")
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assert.Equal(t, err.Message, "Test Failed", "")
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assert.Nil(t, e, "")
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e, _ = s.Get("/foo", false, false)
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assert.Equal(t, e.Node.Value, "bar", "")
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}
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// Ensure that the store can conditionally update a key if it has a previous index.
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func TestStoreCompareAndSwapPrevIndex(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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e, err := s.CompareAndSwap("/foo", "", 1, "baz", Permanent)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Action, "compareAndSwap", "")
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assert.Equal(t, e.Node.PrevValue, "bar", "")
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assert.Equal(t, e.Node.Value, "baz", "")
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e, _ = s.Get("/foo", false, false)
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assert.Equal(t, e.Node.Value, "baz", "")
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}
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// Ensure that the store cannot conditionally update a key if it has the wrong previous index.
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func TestStoreCompareAndSwapPrevIndexFailsIfNotMatch(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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e, _err := s.CompareAndSwap("/foo", "", 100, "baz", Permanent)
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err := _err.(*etcdErr.Error)
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assert.Equal(t, err.ErrorCode, etcdErr.EcodeTestFailed, "")
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assert.Equal(t, err.Message, "Test Failed", "")
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assert.Nil(t, e, "")
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e, _ = s.Get("/foo", false, false)
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assert.Equal(t, e.Node.Value, "bar", "")
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}
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// Ensure that the store can watch for key creation.
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func TestStoreWatchCreate(t *testing.T) {
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s := newStore()
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c, _ := s.Watch("/foo", false, 0)
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s.Create("/foo", "bar", false, Permanent)
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e := nbselect(c)
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assert.Equal(t, e.Action, "create", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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e = nbselect(c)
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assert.Nil(t, e, "")
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}
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// Ensure that the store can watch for recursive key creation.
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func TestStoreWatchRecursiveCreate(t *testing.T) {
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s := newStore()
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c, _ := s.Watch("/foo", true, 0)
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s.Create("/foo/bar", "baz", false, Permanent)
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e := nbselect(c)
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assert.Equal(t, e.Action, "create", "")
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assert.Equal(t, e.Node.Key, "/foo/bar", "")
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}
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// Ensure that the store can watch for key updates.
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func TestStoreWatchUpdate(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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c, _ := s.Watch("/foo", false, 0)
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s.Update("/foo", "baz", Permanent)
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e := nbselect(c)
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assert.Equal(t, e.Action, "update", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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}
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// Ensure that the store can watch for recursive key updates.
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func TestStoreWatchRecursiveUpdate(t *testing.T) {
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s := newStore()
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s.Create("/foo/bar", "baz", false, Permanent)
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c, _ := s.Watch("/foo", true, 0)
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s.Update("/foo/bar", "baz", Permanent)
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e := nbselect(c)
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assert.Equal(t, e.Action, "update", "")
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assert.Equal(t, e.Node.Key, "/foo/bar", "")
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}
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// Ensure that the store can watch for key deletions.
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func TestStoreWatchDelete(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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c, _ := s.Watch("/foo", false, 0)
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s.Delete("/foo", false)
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e := nbselect(c)
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assert.Equal(t, e.Action, "delete", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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}
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// Ensure that the store can watch for recursive key deletions.
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func TestStoreWatchRecursiveDelete(t *testing.T) {
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s := newStore()
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s.Create("/foo/bar", "baz", false, Permanent)
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c, _ := s.Watch("/foo", true, 0)
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s.Delete("/foo/bar", false)
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e := nbselect(c)
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assert.Equal(t, e.Action, "delete", "")
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assert.Equal(t, e.Node.Key, "/foo/bar", "")
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}
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// Ensure that the store can watch for CAS updates.
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func TestStoreWatchCompareAndSwap(t *testing.T) {
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s := newStore()
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s.Create("/foo", "bar", false, Permanent)
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c, _ := s.Watch("/foo", false, 0)
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s.CompareAndSwap("/foo", "bar", 0, "baz", Permanent)
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e := nbselect(c)
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assert.Equal(t, e.Action, "compareAndSwap", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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}
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// Ensure that the store can watch for recursive CAS updates.
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func TestStoreWatchRecursiveCompareAndSwap(t *testing.T) {
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s := newStore()
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s.Create("/foo/bar", "baz", false, Permanent)
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c, _ := s.Watch("/foo", true, 0)
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s.CompareAndSwap("/foo/bar", "baz", 0, "bat", Permanent)
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e := nbselect(c)
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assert.Equal(t, e.Action, "compareAndSwap", "")
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assert.Equal(t, e.Node.Key, "/foo/bar", "")
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}
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// Ensure that the store can watch for key expiration.
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func TestStoreWatchExpire(t *testing.T) {
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s := newStore()
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stopChan := make(chan bool)
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defer func() {
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stopChan <- true
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}()
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go mockSyncService(s.DeleteExpiredKeys, stopChan)
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s.Create("/foo", "bar", false, time.Now().Add(500*time.Millisecond))
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s.Create("/foofoo", "barbarbar", false, time.Now().Add(500*time.Millisecond))
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c, _ := s.Watch("/", true, 0)
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e := nbselect(c)
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assert.Nil(t, e, "")
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time.Sleep(600 * time.Millisecond)
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e = nbselect(c)
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assert.Equal(t, e.Action, "expire", "")
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assert.Equal(t, e.Node.Key, "/foo", "")
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c, _ = s.Watch("/", true, 4)
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e = nbselect(c)
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assert.Equal(t, e.Action, "expire", "")
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assert.Equal(t, e.Node.Key, "/foofoo", "")
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}
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// Ensure that the store can recover from a previously saved state.
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func TestStoreRecover(t *testing.T) {
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s := newStore()
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s.Create("/foo", "", false, Permanent)
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s.Create("/foo/x", "bar", false, Permanent)
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s.Create("/foo/y", "baz", false, Permanent)
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b, err := s.Save()
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s2 := newStore()
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s2.Recovery(b)
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e, err := s.Get("/foo/x", false, false)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Node.Value, "bar", "")
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e, err = s.Get("/foo/y", false, false)
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assert.Nil(t, err, "")
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assert.Equal(t, e.Node.Value, "baz", "")
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}
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// Ensure that the store can recover from a previously saved state that includes an expiring key.
|
|
func TestStoreRecoverWithExpiration(t *testing.T) {
|
|
s := newStore()
|
|
|
|
c := make(chan bool)
|
|
defer func() {
|
|
c <- true
|
|
}()
|
|
go mockSyncService(s.DeleteExpiredKeys, c)
|
|
|
|
s.Create("/foo", "", false, Permanent)
|
|
s.Create("/foo/x", "bar", false, Permanent)
|
|
s.Create("/foo/y", "baz", false, time.Now().Add(5*time.Millisecond))
|
|
b, err := s.Save()
|
|
|
|
time.Sleep(10 * time.Millisecond)
|
|
|
|
s2 := newStore()
|
|
|
|
c2 := make(chan bool)
|
|
defer func() {
|
|
c2 <- true
|
|
}()
|
|
go mockSyncService(s2.DeleteExpiredKeys, c2)
|
|
|
|
s2.Recovery(b)
|
|
|
|
time.Sleep(600 * time.Millisecond)
|
|
|
|
e, err := s.Get("/foo/x", false, false)
|
|
assert.Nil(t, err, "")
|
|
assert.Equal(t, e.Node.Value, "bar", "")
|
|
|
|
e, err = s.Get("/foo/y", false, false)
|
|
assert.NotNil(t, err, "")
|
|
assert.Nil(t, e, "")
|
|
}
|
|
|
|
// Performs a non-blocking select on an event channel.
|
|
func nbselect(c <-chan *Event) *Event {
|
|
select {
|
|
case e := <-c:
|
|
return e
|
|
default:
|
|
return nil
|
|
}
|
|
}
|
|
|
|
func mockSyncService(f func(now time.Time), c chan bool) {
|
|
ticker := time.Tick(time.Millisecond * 500)
|
|
for {
|
|
select {
|
|
case <-c:
|
|
return
|
|
case now := <-ticker:
|
|
f(now)
|
|
}
|
|
}
|
|
}
|