package api import ( "context" "github.com/stretchr/testify/assert" "strings" "testing" "time" ) func TestAPI_SessionCreateDestroy(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() id, meta, err := session.Create(nil, nil) if err != nil { t.Fatalf("err: %v", err) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } if id == "" { t.Fatalf("invalid: %v", id) } meta, err = session.Destroy(id, nil) if err != nil { t.Fatalf("err: %v", err) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } } func TestAPI_SessionCreateRenewDestroy(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() se := &SessionEntry{ TTL: "10s", } id, meta, err := session.Create(se, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } if id == "" { t.Fatalf("invalid: %v", id) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } renew, meta, err := session.Renew(id, nil) if err != nil { t.Fatalf("err: %v", err) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } if renew == nil { t.Fatalf("should get session") } if renew.ID != id { t.Fatalf("should have matching id") } if renew.TTL != "10s" { t.Fatalf("should get session with TTL") } } func TestAPI_SessionCreateRenewDestroyRenew(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() entry := &SessionEntry{ Behavior: SessionBehaviorDelete, TTL: "500s", // disable ttl } id, meta, err := session.Create(entry, nil) if err != nil { t.Fatalf("err: %v", err) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } if id == "" { t.Fatalf("invalid: %v", id) } // Extend right after create. Everything should be fine. entry, _, err = session.Renew(id, nil) if err != nil { t.Fatalf("err: %v", err) } if entry == nil { t.Fatal("session unexpectedly vanished") } // Simulate TTL loss by manually destroying the session. meta, err = session.Destroy(id, nil) if err != nil { t.Fatalf("err: %v", err) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } // Extend right after delete. The 404 should proxy as a nil. entry, _, err = session.Renew(id, nil) if err != nil { t.Fatalf("err: %v", err) } if entry != nil { t.Fatal("session still exists") } } func TestAPI_SessionCreateDestroyRenewPeriodic(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() entry := &SessionEntry{ Behavior: SessionBehaviorDelete, TTL: "500s", // disable ttl } id, meta, err := session.Create(entry, nil) if err != nil { t.Fatalf("err: %v", err) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } if id == "" { t.Fatalf("invalid: %v", id) } // This only tests Create/Destroy/RenewPeriodic to avoid the more // difficult case of testing all of the timing code. // Simulate TTL loss by manually destroying the session. meta, err = session.Destroy(id, nil) if err != nil { t.Fatalf("err: %v", err) } if meta.RequestTime == 0 { t.Fatalf("bad: %v", meta) } // Extend right after delete. The 404 should terminate the loop quickly and return ErrSessionExpired. errCh := make(chan error, 1) doneCh := make(chan struct{}) go func() { errCh <- session.RenewPeriodic("1s", id, nil, doneCh) }() defer close(doneCh) select { case <-time.After(1 * time.Second): t.Fatal("timedout: missing session did not terminate renewal loop") case err = <-errCh: if err != ErrSessionExpired { t.Fatalf("err: %v", err) } } } func TestAPI_SessionRenewPeriodic_Cancel(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() entry := &SessionEntry{ Behavior: SessionBehaviorDelete, TTL: "500s", // disable ttl } t.Run("done channel", func(t *testing.T) { id, _, err := session.Create(entry, nil) if err != nil { t.Fatalf("err: %v", err) } errCh := make(chan error, 1) doneCh := make(chan struct{}) go func() { errCh <- session.RenewPeriodic("1s", id, nil, doneCh) }() close(doneCh) select { case <-time.After(1 * time.Second): t.Fatal("renewal loop didn't terminate") case err = <-errCh: if err != nil { t.Fatalf("err: %v", err) } } sess, _, err := session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } if sess != nil { t.Fatalf("session was not expired") } }) t.Run("context", func(t *testing.T) { id, _, err := session.Create(entry, nil) if err != nil { t.Fatalf("err: %v", err) } ctx, cancel := context.WithCancel(context.Background()) wo := new(WriteOptions).WithContext(ctx) errCh := make(chan error, 1) go func() { errCh <- session.RenewPeriodic("1s", id, wo, nil) }() cancel() select { case <-time.After(1 * time.Second): t.Fatal("renewal loop didn't terminate") case err = <-errCh: if err == nil || !strings.Contains(err.Error(), "context canceled") { t.Fatalf("err: %v", err) } } // See comment in session.go for why the session isn't removed // in this case. sess, _, err := session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } if sess == nil { t.Fatalf("session should not be expired") } }) } func TestAPI_SessionInfo(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() id, _, err := session.Create(nil, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) info, qm, err := session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } if qm.LastIndex == 0 { t.Fatalf("bad: %v", qm) } if !qm.KnownLeader { t.Fatalf("bad: %v", qm) } if info.CreateIndex == 0 { t.Fatalf("bad: %v", info) } info.CreateIndex = 0 want := &SessionEntry{ ID: id, Node: s.Config.NodeName, NodeChecks: []string{"serfHealth"}, LockDelay: 15 * time.Second, Behavior: SessionBehaviorRelease, } if info.ID != want.ID { t.Fatalf("bad ID: %s", info.ID) } if info.Node != want.Node { t.Fatalf("bad Node: %s", info.Node) } if info.LockDelay != want.LockDelay { t.Fatalf("bad LockDelay: %d", info.LockDelay) } if info.Behavior != want.Behavior { t.Fatalf("bad Behavior: %s", info.Behavior) } if len(info.NodeChecks) != len(want.NodeChecks) { t.Fatalf("expected %d nodechecks, got %d", len(want.NodeChecks), len(info.NodeChecks)) } if info.NodeChecks[0] != want.NodeChecks[0] { t.Fatalf("expected nodecheck %s, got %s", want.NodeChecks, info.NodeChecks) } } func TestAPI_SessionInfo_NoChecks(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() id, _, err := session.CreateNoChecks(nil, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) info, qm, err := session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } if qm.LastIndex == 0 { t.Fatalf("bad: %v", qm) } if !qm.KnownLeader { t.Fatalf("bad: %v", qm) } if info.CreateIndex == 0 { t.Fatalf("bad: %v", info) } info.CreateIndex = 0 want := &SessionEntry{ ID: id, Node: s.Config.NodeName, NodeChecks: []string{}, LockDelay: 15 * time.Second, Behavior: SessionBehaviorRelease, } if info.ID != want.ID { t.Fatalf("bad ID: %s", info.ID) } if info.Node != want.Node { t.Fatalf("bad Node: %s", info.Node) } if info.LockDelay != want.LockDelay { t.Fatalf("bad LockDelay: %d", info.LockDelay) } if info.Behavior != want.Behavior { t.Fatalf("bad Behavior: %s", info.Behavior) } assert.Equal(t, want.Checks, info.Checks) assert.Equal(t, want.NodeChecks, info.NodeChecks) } func TestAPI_SessionNode(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() id, _, err := session.Create(nil, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) info, qm, err := session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } sessions, qm, err := session.Node(info.Node, nil) if err != nil { t.Fatalf("err: %v", err) } if len(sessions) != 1 { t.Fatalf("bad: %v", sessions) } if qm.LastIndex == 0 { t.Fatalf("bad: %v", qm) } if !qm.KnownLeader { t.Fatalf("bad: %v", qm) } } func TestAPI_SessionList(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) session := c.Session() id, _, err := session.Create(nil, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) sessions, qm, err := session.List(nil) if err != nil { t.Fatalf("err: %v", err) } if len(sessions) != 1 { t.Fatalf("bad: %v", sessions) } if qm.LastIndex == 0 { t.Fatalf("bad: %v", qm) } if !qm.KnownLeader { t.Fatalf("bad: %v", qm) } } func TestAPI_SessionNodeChecks(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) // Node check that doesn't exist should yield error on creation se := SessionEntry{ NodeChecks: []string{"dne"}, } session := c.Session() id, _, err := session.Create(&se, nil) if err == nil { t.Fatalf("should have failed") } // Empty node check should lead to serf check se.NodeChecks = []string{} id, _, err = session.Create(&se, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) info, qm, err := session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } if qm.LastIndex == 0 { t.Fatalf("bad: %v", qm) } if !qm.KnownLeader { t.Fatalf("bad: %v", qm) } if info.CreateIndex == 0 { t.Fatalf("bad: %v", info) } info.CreateIndex = 0 want := &SessionEntry{ ID: id, Node: s.Config.NodeName, NodeChecks: []string{"serfHealth"}, LockDelay: 15 * time.Second, Behavior: SessionBehaviorRelease, } want.Namespace = info.Namespace assert.Equal(t, want, info) // Register a new node with a non-serf check cr := CatalogRegistration{ Datacenter: "dc1", Node: "foo", ID: "e0155642-135d-4739-9853-a1ee6c9f945b", Address: "127.0.0.2", Checks: HealthChecks{ &HealthCheck{ Node: "foo", CheckID: "foo:alive", Name: "foo-liveness", Status: HealthPassing, Notes: "foo is alive and well", }, }, } catalog := c.Catalog() if _, err := catalog.Register(&cr, nil); err != nil { t.Fatalf("err: %v", err) } // If a custom node check is provided, it should overwrite serfHealth default se.Node = "foo" se.NodeChecks = []string{"foo:alive"} id, _, err = session.Create(&se, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) info, qm, err = session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } if qm.LastIndex == 0 { t.Fatalf("bad: %v", qm) } if !qm.KnownLeader { t.Fatalf("bad: %v", qm) } if info.CreateIndex == 0 { t.Fatalf("bad: %v", info) } info.CreateIndex = 0 want = &SessionEntry{ ID: id, Node: "foo", NodeChecks: []string{"foo:alive"}, LockDelay: 15 * time.Second, Behavior: SessionBehaviorRelease, } want.Namespace = info.Namespace assert.Equal(t, want, info) } func TestAPI_SessionServiceChecks(t *testing.T) { t.Parallel() c, s := makeClient(t) defer s.Stop() s.WaitForSerfCheck(t) // Node check that doesn't exist should yield error on creation se := SessionEntry{ ServiceChecks: []ServiceCheck{ {"dne", ""}, }, } session := c.Session() id, _, err := session.Create(&se, nil) if err == nil { t.Fatalf("should have failed") } // Register a new service with a check cr := CatalogRegistration{ Datacenter: "dc1", Node: s.Config.NodeName, SkipNodeUpdate: true, Service: &AgentService{ Kind: ServiceKindTypical, ID: "redisV2", Service: "redis", Port: 1235, Address: "198.18.1.2", }, Checks: HealthChecks{ &HealthCheck{ Node: s.Config.NodeName, CheckID: "redis:alive", Status: HealthPassing, ServiceID: "redisV2", }, }, } catalog := c.Catalog() if _, err := catalog.Register(&cr, nil); err != nil { t.Fatalf("err: %v", err) } // If a custom check is provided, it should be present in session info se.ServiceChecks = []ServiceCheck{ {"redis:alive", ""}, } id, _, err = session.Create(&se, nil) if err != nil { t.Fatalf("err: %v", err) } defer session.Destroy(id, nil) info, qm, err := session.Info(id, nil) if err != nil { t.Fatalf("err: %v", err) } if qm.LastIndex == 0 { t.Fatalf("bad: %v", qm) } if !qm.KnownLeader { t.Fatalf("bad: %v", qm) } if info.CreateIndex == 0 { t.Fatalf("bad: %v", info) } info.CreateIndex = 0 want := &SessionEntry{ ID: id, Node: s.Config.NodeName, ServiceChecks: []ServiceCheck{{"redis:alive", ""}}, NodeChecks: []string{"serfHealth"}, LockDelay: 15 * time.Second, Behavior: SessionBehaviorRelease, } want.Namespace = info.Namespace assert.Equal(t, want, info) }