open-consul/consul/kvs_endpoint_test.go

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package consul
import (
"github.com/hashicorp/consul/consul/structs"
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"github.com/hashicorp/consul/testutil"
"os"
"testing"
"time"
)
func TestKVS_Apply(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
client := rpcClient(t, s1)
defer client.Close()
testutil.WaitForLeader(t, client.Call, "dc1")
arg := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: "test",
Flags: 42,
Value: []byte("test"),
},
}
var out bool
if err := client.Call("KVS.Apply", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
// Verify
state := s1.fsm.State()
_, d, err := state.KVSGet("test")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("should not be nil")
}
// Do a check and set
arg.Op = structs.KVSCAS
arg.DirEnt.ModifyIndex = d.ModifyIndex
arg.DirEnt.Flags = 43
if err := client.Call("KVS.Apply", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
// Check this was applied
if out != true {
t.Fatalf("bad: %v", out)
}
// Verify
_, d, err = state.KVSGet("test")
if err != nil {
t.Fatalf("err: %v", err)
}
if d.Flags != 43 {
t.Fatalf("bad: %v", d)
}
}
func TestKVS_Get(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
client := rpcClient(t, s1)
defer client.Close()
testutil.WaitForLeader(t, client.Call, "dc1")
arg := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: "test",
Flags: 42,
Value: []byte("test"),
},
}
var out bool
if err := client.Call("KVS.Apply", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
getR := structs.KeyRequest{
Datacenter: "dc1",
Key: "test",
}
var dirent structs.IndexedDirEntries
if err := client.Call("KVS.Get", &getR, &dirent); err != nil {
t.Fatalf("err: %v", err)
}
if dirent.Index == 0 {
t.Fatalf("Bad: %v", dirent)
}
if len(dirent.Entries) != 1 {
t.Fatalf("Bad: %v", dirent)
}
d := dirent.Entries[0]
if d.Flags != 42 {
t.Fatalf("bad: %v", d)
}
if string(d.Value) != "test" {
t.Fatalf("bad: %v", d)
}
}
func TestKVSEndpoint_List(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
client := rpcClient(t, s1)
defer client.Close()
testutil.WaitForLeader(t, client.Call, "dc1")
keys := []string{
"/test/key1",
"/test/key2",
"/test/sub/key3",
}
for _, key := range keys {
arg := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: key,
Flags: 1,
},
}
var out bool
if err := client.Call("KVS.Apply", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
}
getR := structs.KeyRequest{
Datacenter: "dc1",
Key: "/test",
}
var dirent structs.IndexedDirEntries
if err := client.Call("KVS.List", &getR, &dirent); err != nil {
t.Fatalf("err: %v", err)
}
if dirent.Index == 0 {
t.Fatalf("Bad: %v", dirent)
}
if len(dirent.Entries) != 3 {
t.Fatalf("Bad: %v", dirent.Entries)
}
for i := 0; i < len(dirent.Entries); i++ {
d := dirent.Entries[i]
if d.Key != keys[i] {
t.Fatalf("bad: %v", d)
}
if d.Flags != 1 {
t.Fatalf("bad: %v", d)
}
if d.Value != nil {
t.Fatalf("bad: %v", d)
}
}
}
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func TestKVSEndpoint_ListKeys(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
client := rpcClient(t, s1)
defer client.Close()
testutil.WaitForLeader(t, client.Call, "dc1")
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keys := []string{
"/test/key1",
"/test/key2",
"/test/sub/key3",
}
for _, key := range keys {
arg := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: key,
Flags: 1,
},
}
var out bool
if err := client.Call("KVS.Apply", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
}
getR := structs.KeyListRequest{
Datacenter: "dc1",
Prefix: "/test/",
Seperator: "/",
}
var dirent structs.IndexedKeyList
if err := client.Call("KVS.ListKeys", &getR, &dirent); err != nil {
t.Fatalf("err: %v", err)
}
if dirent.Index == 0 {
t.Fatalf("Bad: %v", dirent)
}
if len(dirent.Keys) != 3 {
t.Fatalf("Bad: %v", dirent.Keys)
}
if dirent.Keys[0] != "/test/key1" {
t.Fatalf("Bad: %v", dirent.Keys)
}
if dirent.Keys[1] != "/test/key2" {
t.Fatalf("Bad: %v", dirent.Keys)
}
if dirent.Keys[2] != "/test/sub/" {
t.Fatalf("Bad: %v", dirent.Keys)
}
}
func TestKVS_Apply_LockDelay(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
client := rpcClient(t, s1)
defer client.Close()
testutil.WaitForLeader(t, client.Call, "dc1")
// Create and invalidate a session with a lock
state := s1.fsm.State()
if err := state.EnsureNode(1, structs.Node{"foo", "127.0.0.1"}); err != nil {
t.Fatalf("err: %v")
}
session := &structs.Session{
Node: "foo",
LockDelay: 50 * time.Millisecond,
}
if err := state.SessionCreate(2, session); err != nil {
t.Fatalf("err: %v", err)
}
id := session.ID
d := &structs.DirEntry{
Key: "test",
Session: id,
}
if ok, err := state.KVSLock(3, d); err != nil || !ok {
t.Fatalf("err: %v", err)
}
if err := state.SessionDestroy(4, id); err != nil {
t.Fatalf("err: %v", err)
}
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// Make a new session that is valid
if err := state.SessionCreate(5, session); err != nil {
t.Fatalf("err: %v", err)
}
validId := session.ID
// Make a lock request
arg := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSLock,
DirEnt: structs.DirEntry{
Key: "test",
Session: validId,
},
}
var out bool
if err := client.Call("KVS.Apply", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
if out != false {
t.Fatalf("should not acquire")
}
// Wait for lock-delay
time.Sleep(50 * time.Millisecond)
// Should acquire
if err := client.Call("KVS.Apply", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
if out != true {
t.Fatalf("should acquire")
}
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}