open-consul/consul/fsm_test.go

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package consul
import (
"bytes"
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"io/ioutil"
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"os"
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"testing"
"github.com/hashicorp/consul/consul/structs"
"github.com/hashicorp/raft"
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)
type MockSink struct {
*bytes.Buffer
cancel bool
}
func (m *MockSink) ID() string {
return "Mock"
}
func (m *MockSink) Cancel() error {
m.cancel = true
return nil
}
func (m *MockSink) Close() error {
return nil
}
func makeLog(buf []byte) *raft.Log {
return &raft.Log{
Index: 1,
Term: 1,
Type: raft.LogCommand,
Data: buf,
}
}
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func TestFSM_RegisterNode(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
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req := structs.RegisterRequest{
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Datacenter: "dc1",
Node: "foo",
Address: "127.0.0.1",
}
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buf, err := structs.Encode(structs.RegisterRequestType, req)
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if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
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if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify we are registered
if idx, found, _ := fsm.state.GetNode("foo"); !found {
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t.Fatalf("not found!")
} else if idx != 1 {
t.Fatalf("bad index: %d", idx)
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}
// Verify service registered
_, services := fsm.state.NodeServices("foo")
if len(services.Services) != 0 {
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t.Fatalf("Services: %v", services)
}
}
func TestFSM_RegisterNode_Service(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
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req := structs.RegisterRequest{
Datacenter: "dc1",
Node: "foo",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "db",
Service: "db",
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Tags: []string{"master"},
Port: 8000,
},
Check: &structs.HealthCheck{
Node: "foo",
CheckID: "db",
Name: "db connectivity",
Status: structs.HealthPassing,
ServiceID: "db",
},
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}
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buf, err := structs.Encode(structs.RegisterRequestType, req)
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if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
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if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify we are registered
if _, found, _ := fsm.state.GetNode("foo"); !found {
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t.Fatalf("not found!")
}
// Verify service registered
_, services := fsm.state.NodeServices("foo")
if _, ok := services.Services["db"]; !ok {
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t.Fatalf("not registered!")
}
// Verify check
_, checks := fsm.state.NodeChecks("foo")
if checks[0].CheckID != "db" {
t.Fatalf("not registered!")
}
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}
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func TestFSM_DeregisterService(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
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req := structs.RegisterRequest{
Datacenter: "dc1",
Node: "foo",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "db",
Service: "db",
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Tags: []string{"master"},
Port: 8000,
},
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}
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buf, err := structs.Encode(structs.RegisterRequestType, req)
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if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
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if resp != nil {
t.Fatalf("resp: %v", resp)
}
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dereg := structs.DeregisterRequest{
Datacenter: "dc1",
Node: "foo",
ServiceID: "db",
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}
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buf, err = structs.Encode(structs.DeregisterRequestType, dereg)
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if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
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if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify we are registered
if _, found, _ := fsm.state.GetNode("foo"); !found {
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t.Fatalf("not found!")
}
// Verify service not registered
_, services := fsm.state.NodeServices("foo")
if _, ok := services.Services["db"]; ok {
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t.Fatalf("db registered!")
}
}
func TestFSM_DeregisterCheck(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
req := structs.RegisterRequest{
Datacenter: "dc1",
Node: "foo",
Address: "127.0.0.1",
Check: &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: structs.HealthPassing,
},
}
buf, err := structs.Encode(structs.RegisterRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
dereg := structs.DeregisterRequest{
Datacenter: "dc1",
Node: "foo",
CheckID: "mem",
}
buf, err = structs.Encode(structs.DeregisterRequestType, dereg)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify we are registered
if _, found, _ := fsm.state.GetNode("foo"); !found {
t.Fatalf("not found!")
}
// Verify check not registered
_, checks := fsm.state.NodeChecks("foo")
if len(checks) != 0 {
t.Fatalf("check registered!")
}
}
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func TestFSM_DeregisterNode(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
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req := structs.RegisterRequest{
Datacenter: "dc1",
Node: "foo",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "db",
Service: "db",
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Tags: []string{"master"},
Port: 8000,
},
Check: &structs.HealthCheck{
Node: "foo",
CheckID: "db",
Name: "db connectivity",
Status: structs.HealthPassing,
ServiceID: "db",
},
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}
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buf, err := structs.Encode(structs.RegisterRequestType, req)
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if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
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if resp != nil {
t.Fatalf("resp: %v", resp)
}
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dereg := structs.DeregisterRequest{
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Datacenter: "dc1",
Node: "foo",
}
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buf, err = structs.Encode(structs.DeregisterRequestType, dereg)
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if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
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if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify we are registered
if _, found, _ := fsm.state.GetNode("foo"); found {
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t.Fatalf("found!")
}
// Verify service not registered
_, services := fsm.state.NodeServices("foo")
if services != nil {
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t.Fatalf("Services: %v", services)
}
// Verify checks not registered
_, checks := fsm.state.NodeChecks("foo")
if len(checks) != 0 {
t.Fatalf("Services: %v", services)
}
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}
func TestFSM_SnapshotRestore(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
// Add some state
fsm.state.EnsureNode(1, structs.Node{"foo", "127.0.0.1"})
fsm.state.EnsureNode(2, structs.Node{"baz", "127.0.0.2"})
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fsm.state.EnsureService(3, "foo", &structs.NodeService{"web", "web", nil, 80})
fsm.state.EnsureService(4, "foo", &structs.NodeService{"db", "db", []string{"primary"}, 5000})
fsm.state.EnsureService(5, "baz", &structs.NodeService{"web", "web", nil, 80})
fsm.state.EnsureService(6, "baz", &structs.NodeService{"db", "db", []string{"secondary"}, 5000})
fsm.state.EnsureCheck(7, &structs.HealthCheck{
Node: "foo",
CheckID: "web",
Name: "web connectivity",
Status: structs.HealthPassing,
ServiceID: "web",
})
fsm.state.KVSSet(8, &structs.DirEntry{
Key: "/test",
Value: []byte("foo"),
})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
fsm.state.SessionCreate(9, session)
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acl := &structs.ACL{ID: generateUUID(), Name: "User Token"}
fsm.state.ACLSet(10, acl)
// Snapshot
snap, err := fsm.Snapshot()
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Release()
// Persist
buf := bytes.NewBuffer(nil)
sink := &MockSink{buf, false}
if err := snap.Persist(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Try to restore on a new FSM
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fsm2, err := NewFSM(path, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm2.Close()
// Do a restore
if err := fsm2.Restore(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Verify the contents
_, nodes := fsm2.state.Nodes()
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if len(nodes) != 2 {
t.Fatalf("Bad: %v", nodes)
}
_, fooSrv := fsm2.state.NodeServices("foo")
if len(fooSrv.Services) != 2 {
t.Fatalf("Bad: %v", fooSrv)
}
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if !strContains(fooSrv.Services["db"].Tags, "primary") {
t.Fatalf("Bad: %v", fooSrv)
}
if fooSrv.Services["db"].Port != 5000 {
t.Fatalf("Bad: %v", fooSrv)
}
_, checks := fsm2.state.NodeChecks("foo")
if len(checks) != 1 {
t.Fatalf("Bad: %v", checks)
}
// Verify key is set
_, d, err := fsm.state.KVSGet("/test")
if err != nil {
t.Fatalf("err: %v", err)
}
if string(d.Value) != "foo" {
t.Fatalf("bad: %v", d)
}
// Verify session is restored
_, s, err := fsm.state.SessionGet(session.ID)
if err != nil {
t.Fatalf("err: %v", err)
}
if s.Node != "foo" {
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t.Fatalf("bad: %v", s)
}
// Verify ACL is restored
_, a, err := fsm.state.ACLGet(acl.ID)
if err != nil {
t.Fatalf("err: %v", err)
}
if a.Name != "User Token" {
t.Fatalf("bad: %v", a)
}
}
func TestFSM_KVSSet(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
req := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: "/test/path",
Flags: 0,
Value: []byte("test"),
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify key is set
_, d, err := fsm.state.KVSGet("/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("missing")
}
}
func TestFSM_KVSDelete(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
req := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: "/test/path",
Flags: 0,
Value: []byte("test"),
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Run the delete
req.Op = structs.KVSDelete
buf, err = structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify key is not set
_, d, err := fsm.state.KVSGet("/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d != nil {
t.Fatalf("key present")
}
}
func TestFSM_KVSDeleteTree(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
req := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: "/test/path",
Flags: 0,
Value: []byte("test"),
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Run the delete tree
req.Op = structs.KVSDeleteTree
req.DirEnt.Key = "/test"
buf, err = structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify key is not set
_, d, err := fsm.state.KVSGet("/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d != nil {
t.Fatalf("key present")
}
}
func TestFSM_KVSCheckAndSet(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
req := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSSet,
DirEnt: structs.DirEntry{
Key: "/test/path",
Flags: 0,
Value: []byte("test"),
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
// Verify key is set
_, d, err := fsm.state.KVSGet("/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("key missing")
}
// Run the check-and-set
req.Op = structs.KVSCAS
req.DirEnt.ModifyIndex = d.ModifyIndex
req.DirEnt.Value = []byte("zip")
buf, err = structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp.(bool) != true {
t.Fatalf("resp: %v", resp)
}
// Verify key is updated
_, d, err = fsm.state.KVSGet("/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if string(d.Value) != "zip" {
t.Fatalf("bad: %v", d)
}
}
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func TestFSM_SessionCreate_Destroy(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
fsm.state.EnsureNode(1, structs.Node{"foo", "127.0.0.1"})
fsm.state.EnsureCheck(2, &structs.HealthCheck{
Node: "foo",
CheckID: "web",
Status: structs.HealthPassing,
})
// Create a new session
req := structs.SessionRequest{
Datacenter: "dc1",
Op: structs.SessionCreate,
Session: structs.Session{
ID: generateUUID(),
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Node: "foo",
Checks: []string{"web"},
},
}
buf, err := structs.Encode(structs.SessionRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if err, ok := resp.(error); ok {
t.Fatalf("resp: %v", err)
}
// Get the session
id := resp.(string)
_, session, err := fsm.state.SessionGet(id)
if err != nil {
t.Fatalf("err: %v", err)
}
if session == nil {
t.Fatalf("missing")
}
// Verify the session
if session.ID != id {
t.Fatalf("bad: %v", *session)
}
if session.Node != "foo" {
t.Fatalf("bad: %v", *session)
}
if session.Checks[0] != "web" {
t.Fatalf("bad: %v", *session)
}
// Try to destroy
destroy := structs.SessionRequest{
Datacenter: "dc1",
Op: structs.SessionDestroy,
Session: structs.Session{
ID: id,
},
}
buf, err = structs.Encode(structs.SessionRequestType, destroy)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
_, session, err = fsm.state.SessionGet(id)
if err != nil {
t.Fatalf("err: %v", err)
}
if session != nil {
t.Fatalf("should be destroyed")
}
}
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func TestFSM_KVSLock(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
fsm.state.EnsureNode(1, structs.Node{"foo", "127.0.0.1"})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
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fsm.state.SessionCreate(2, session)
req := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSLock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
// Verify key is locked
_, d, err := fsm.state.KVSGet("/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("missing")
}
if d.LockIndex != 1 {
t.Fatalf("bad: %v", *d)
}
if d.Session != session.ID {
t.Fatalf("bad: %v", *d)
}
}
func TestFSM_KVSUnlock(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
fsm.state.EnsureNode(1, structs.Node{"foo", "127.0.0.1"})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
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fsm.state.SessionCreate(2, session)
req := structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSLock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
req = structs.KVSRequest{
Datacenter: "dc1",
Op: structs.KVSUnlock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err = structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
// Verify key is unlocked
_, d, err := fsm.state.KVSGet("/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("missing")
}
if d.LockIndex != 1 {
t.Fatalf("bad: %v", *d)
}
if d.Session != "" {
t.Fatalf("bad: %v", *d)
}
}
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func TestFSM_ACL_Set_Delete(t *testing.T) {
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path, err := ioutil.TempDir("", "fsm")
if err != nil {
t.Fatalf("err: %v", err)
}
fsm, err := NewFSM(path, os.Stderr)
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if err != nil {
t.Fatalf("err: %v", err)
}
defer fsm.Close()
// Create a new ACL
req := structs.ACLRequest{
Datacenter: "dc1",
Op: structs.ACLSet,
ACL: structs.ACL{
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ID: generateUUID(),
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Name: "User token",
Type: structs.ACLTypeClient,
},
}
buf, err := structs.Encode(structs.ACLRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if err, ok := resp.(error); ok {
t.Fatalf("resp: %v", err)
}
// Get the ACL
id := resp.(string)
_, acl, err := fsm.state.ACLGet(id)
if err != nil {
t.Fatalf("err: %v", err)
}
if acl == nil {
t.Fatalf("missing")
}
// Verify the ACL
if acl.ID != id {
t.Fatalf("bad: %v", *acl)
}
if acl.Name != "User token" {
t.Fatalf("bad: %v", *acl)
}
if acl.Type != structs.ACLTypeClient {
t.Fatalf("bad: %v", *acl)
}
// Try to destroy
destroy := structs.ACLRequest{
Datacenter: "dc1",
Op: structs.ACLDelete,
ACL: structs.ACL{
ID: id,
},
}
buf, err = structs.Encode(structs.ACLRequestType, destroy)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != nil {
t.Fatalf("resp: %v", resp)
}
_, acl, err = fsm.state.ACLGet(id)
if err != nil {
t.Fatalf("err: %v", err)
}
if acl != nil {
t.Fatalf("should be destroyed")
}
}