package testrpc import ( "testing" "github.com/hashicorp/consul/agent/structs" "github.com/hashicorp/consul/sdk/testutil/retry" ) type rpcFn func(string, interface{}, interface{}) error // WaitForLeader ensures we have a leader and a node registration. func WaitForLeader(t *testing.T, rpc rpcFn, dc string) { var out structs.IndexedNodes retry.Run(t, func(r *retry.R) { args := &structs.DCSpecificRequest{Datacenter: dc} if err := rpc("Catalog.ListNodes", args, &out); err != nil { r.Fatalf("Catalog.ListNodes failed: %v", err) } if !out.QueryMeta.KnownLeader { r.Fatalf("No leader") } if out.Index < 2 { r.Fatalf("Consul index should be at least 2") } }) } // WaitUntilNoLeader ensures no leader is present, useful for testing lost leadership. func WaitUntilNoLeader(t *testing.T, rpc rpcFn, dc string) { var out structs.IndexedNodes retry.Run(t, func(r *retry.R) { args := &structs.DCSpecificRequest{Datacenter: dc} if err := rpc("Catalog.ListNodes", args, &out); err == nil { r.Fatalf("It still has a leader: %#v", out) } if out.QueryMeta.KnownLeader { r.Fatalf("Has still a leader") } }) } type waitOption struct { Token string WaitForAntiEntropySync bool } func WithToken(token string) waitOption { return waitOption{Token: token} } func WaitForAntiEntropySync() waitOption { return waitOption{WaitForAntiEntropySync: true} } // WaitForTestAgent ensures we have a node with serfHealth check registered func WaitForTestAgent(t *testing.T, rpc rpcFn, dc string, options ...waitOption) { var nodes structs.IndexedNodes var checks structs.IndexedHealthChecks var ( token string waitForAntiEntropySync bool ) for _, opt := range options { if opt.Token != "" { token = opt.Token } if opt.WaitForAntiEntropySync { waitForAntiEntropySync = true } } retry.Run(t, func(r *retry.R) { dcReq := &structs.DCSpecificRequest{ Datacenter: dc, QueryOptions: structs.QueryOptions{Token: token}, } if err := rpc("Catalog.ListNodes", dcReq, &nodes); err != nil { r.Fatalf("Catalog.ListNodes failed: %v", err) } if len(nodes.Nodes) == 0 { r.Fatalf("No registered nodes") } if waitForAntiEntropySync { if len(nodes.Nodes[0].TaggedAddresses) == 0 { r.Fatalf("Not synced via anti entropy yet") } } // This assumes that there is a single agent per dc, typically a TestAgent nodeReq := &structs.NodeSpecificRequest{ Datacenter: dc, Node: nodes.Nodes[0].Node, QueryOptions: structs.QueryOptions{Token: token}, } if err := rpc("Health.NodeChecks", nodeReq, &checks); err != nil { r.Fatalf("Health.NodeChecks failed: %v", err) } var found bool for _, check := range checks.HealthChecks { if check.CheckID == "serfHealth" { found = true break } } if !found { r.Fatalf("serfHealth check not found") } }) } // WaitForActiveCARoot polls until the server returns an active Connect root CA // with the same ID field as expect. If expect is nil, it just waits until _any_ // active root is returned. This is useful because initializing CA happens after // raft leadership is gained so WaitForLeader isn't sufficient to be sure that // the CA is fully initialized. func WaitForActiveCARoot(t *testing.T, rpc rpcFn, dc string, expect *structs.CARoot) { retry.Run(t, func(r *retry.R) { args := &structs.DCSpecificRequest{ Datacenter: dc, } var reply structs.IndexedCARoots if err := rpc("ConnectCA.Roots", args, &reply); err != nil { r.Fatalf("err: %v", err) } var root *structs.CARoot for _, r := range reply.Roots { if r.ID == reply.ActiveRootID { root = r break } } if root == nil { r.Fatal("no active root") } if expect != nil && root.ID != expect.ID { r.Fatalf("current active root is %s; waiting for %s", root.ID, expect.ID) } }) }