open-consul/api/snapshot_test.go

139 lines
3.4 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package api
import (
"bytes"
"strings"
"testing"
)
func TestAPI_Snapshot(t *testing.T) {
t.Parallel()
c, s := makeClient(t)
defer s.Stop()
s.WaitForSerfCheck(t)
// Place an initial key into the store.
kv := c.KV()
key := &KVPair{Key: testKey(), Value: []byte("hello")}
if _, err := kv.Put(key, nil); err != nil {
t.Fatalf("err: %v", err)
}
// Make sure it reads back.
pair, _, err := kv.Get(key.Key, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
if pair == nil {
t.Fatalf("expected value: %#v", pair)
}
if !bytes.Equal(pair.Value, []byte("hello")) {
t.Fatalf("unexpected value: %#v", pair)
}
// Take a snapshot.
snapshot := c.Snapshot()
snap, qm, err := snapshot.Save(nil)
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Close()
// Sanity check th query metadata.
if qm.LastIndex == 0 || !qm.KnownLeader ||
qm.RequestTime == 0 {
t.Fatalf("bad: %v", qm)
}
// Overwrite the key's value.
key.Value = []byte("goodbye")
if _, err := kv.Put(key, nil); err != nil {
t.Fatalf("err: %v", err)
}
// Read the key back and look for the new value.
pair, _, err = kv.Get(key.Key, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
if pair == nil {
t.Fatalf("expected value: %#v", pair)
}
if !bytes.Equal(pair.Value, []byte("goodbye")) {
t.Fatalf("unexpected value: %#v", pair)
}
// Restore the snapshot.
if err := snapshot.Restore(nil, snap); err != nil {
t.Fatalf("err: %v", err)
}
// Read the key back and look for the original value.
pair, _, err = kv.Get(key.Key, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
if pair == nil {
t.Fatalf("expected value: %#v", pair)
}
if !bytes.Equal(pair.Value, []byte("hello")) {
t.Fatalf("unexpected value: %#v", pair)
}
}
func TestAPI_Snapshot_Options(t *testing.T) {
t.Parallel()
c, s := makeACLClient(t)
defer s.Stop()
// Try to take a snapshot with a bad token.
snapshot := c.Snapshot()
_, _, err := snapshot.Save(&QueryOptions{Token: "anonymous"})
if err == nil || !strings.Contains(err.Error(), "Permission denied") {
t.Fatalf("err: %v", err)
}
// Now try an unknown DC.
_, _, err = snapshot.Save(&QueryOptions{Datacenter: "nope"})
if err == nil || !strings.Contains(err.Error(), "No path to datacenter") {
t.Fatalf("err: %v", err)
}
// This should work with a valid token.
snap, _, err := snapshot.Save(&QueryOptions{Token: "root"})
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Close()
// This should work with a stale snapshot. This doesn't have good feedback
// that the stale option was sent, but it makes sure nothing bad happens.
snap, _, err = snapshot.Save(&QueryOptions{Token: "root", AllowStale: true})
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Close()
// Try to restore a snapshot with a bad token.
null := bytes.NewReader([]byte(""))
err = snapshot.Restore(&WriteOptions{Token: "anonymous"}, null)
if err == nil || !strings.Contains(err.Error(), "Permission denied") {
t.Fatalf("err: %v", err)
}
// Now try an unknown DC.
null = bytes.NewReader([]byte(""))
err = snapshot.Restore(&WriteOptions{Datacenter: "nope"}, null)
if err == nil || !strings.Contains(err.Error(), "No path to datacenter") {
t.Fatalf("err: %v", err)
}
// This should work.
if err := snapshot.Restore(&WriteOptions{Token: "root"}, snap); err != nil {
t.Fatalf("err: %v", err)
}
}