mirror of https://github.com/status-im/consul.git
98 lines
2.5 KiB
Go
98 lines
2.5 KiB
Go
package testrpc
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import (
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"testing"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/testutil/retry"
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)
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type rpcFn func(string, interface{}, interface{}) error
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// WaitForLeader ensures we have a leader and a node registration.
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func WaitForLeader(t *testing.T, rpc rpcFn, dc string) {
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var out structs.IndexedNodes
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retry.Run(t, func(r *retry.R) {
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args := &structs.DCSpecificRequest{Datacenter: dc}
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if err := rpc("Catalog.ListNodes", args, &out); err != nil {
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r.Fatalf("Catalog.ListNodes failed: %v", err)
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}
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if !out.QueryMeta.KnownLeader {
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r.Fatalf("No leader")
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}
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if out.Index < 2 {
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r.Fatalf("Consul index should be at least 2")
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}
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})
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}
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// WaitUntilNoLeader ensures no leader is present, useful for testing lost leadership.
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func WaitUntilNoLeader(t *testing.T, rpc rpcFn, dc string) {
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var out structs.IndexedNodes
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retry.Run(t, func(r *retry.R) {
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args := &structs.DCSpecificRequest{Datacenter: dc}
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if err := rpc("Catalog.ListNodes", args, &out); err == nil {
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r.Fatalf("It still has a leader: %#v", out)
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}
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if out.QueryMeta.KnownLeader {
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r.Fatalf("Has still a leader")
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}
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})
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}
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type waitOption struct {
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Token string
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}
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func WithToken(token string) waitOption {
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return waitOption{Token: token}
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}
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// WaitForTestAgent ensures we have a node with serfHealth check registered
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func WaitForTestAgent(t *testing.T, rpc rpcFn, dc string, options ...waitOption) {
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var nodes structs.IndexedNodes
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var checks structs.IndexedHealthChecks
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// first extra arg is an optional acl token
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var token string
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for _, opt := range options {
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if opt.Token != "" {
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token = opt.Token
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}
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}
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retry.Run(t, func(r *retry.R) {
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dcReq := &structs.DCSpecificRequest{
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Datacenter: dc,
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QueryOptions: structs.QueryOptions{Token: token},
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}
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if err := rpc("Catalog.ListNodes", dcReq, &nodes); err != nil {
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r.Fatalf("Catalog.ListNodes failed: %v", err)
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}
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if len(nodes.Nodes) == 0 {
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r.Fatalf("No registered nodes")
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}
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// This assumes that there is a single agent per dc, typically a TestAgent
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nodeReq := &structs.NodeSpecificRequest{
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Datacenter: dc,
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Node: nodes.Nodes[0].Node,
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QueryOptions: structs.QueryOptions{Token: token},
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}
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if err := rpc("Health.NodeChecks", nodeReq, &checks); err != nil {
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r.Fatalf("Health.NodeChecks failed: %v", err)
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}
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var found bool
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for _, check := range checks.HealthChecks {
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if check.CheckID == "serfHealth" {
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found = true
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break
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}
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}
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if !found {
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r.Fatalf("serfHealth check not found")
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}
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})
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}
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