open-consul/consul/merge_test.go

161 lines
3.0 KiB
Go

package consul
import (
"strings"
"testing"
"github.com/hashicorp/consul/types"
"github.com/hashicorp/serf/serf"
)
func makeNode(dc, name, id string, server bool) *serf.Member {
var role string
if server {
role = "consul"
} else {
role = "node"
}
return &serf.Member{
Name: name,
Tags: map[string]string{
"role": role,
"dc": dc,
"id": id,
"port": "8300",
"build": "0.7.5",
"vsn": "2",
"vsn_max": "3",
"vsn_min": "2",
},
}
}
func TestMerge_LAN(t *testing.T) {
cases := []struct {
members []*serf.Member
expect string
}{
// Client in the wrong datacenter.
{
members: []*serf.Member{
makeNode("dc2",
"node1",
"96430788-246f-4379-94ce-257f7429e340",
false),
},
expect: "wrong datacenter",
},
// Server in the wrong datacenter.
{
members: []*serf.Member{
makeNode("dc2",
"node1",
"96430788-246f-4379-94ce-257f7429e340",
true),
},
expect: "wrong datacenter",
},
// Node ID conflict with delegate's ID.
{
members: []*serf.Member{
makeNode("dc1",
"node1",
"ee954a2f-80de-4b34-8780-97b942a50a99",
true),
},
expect: "with this agent's ID",
},
// Cluster with existing conflicting node IDs.
{
members: []*serf.Member{
makeNode("dc1",
"node1",
"6185913b-98d7-4441-bd8f-f7f7d854a4af",
true),
makeNode("dc1",
"node2",
"6185913b-98d7-4441-bd8f-f7f7d854a4af",
true),
},
expect: "with member",
},
// Good cluster.
{
members: []*serf.Member{
makeNode("dc1",
"node1",
"6185913b-98d7-4441-bd8f-f7f7d854a4af",
true),
makeNode("dc1",
"node2",
"cda916bc-a357-4a19-b886-59419fcee50c",
true),
},
expect: "",
},
}
delegate := &lanMergeDelegate{
dc: "dc1",
nodeID: types.NodeID("ee954a2f-80de-4b34-8780-97b942a50a99"),
nodeName: "node0",
}
for i, c := range cases {
if err := delegate.NotifyMerge(c.members); c.expect == "" {
if err != nil {
t.Fatalf("case %d: err: %v", i+1, err)
}
} else {
if err == nil || !strings.Contains(err.Error(), c.expect) {
t.Fatalf("case %d: err: %v", i+1, err)
}
}
}
}
func TestMerge_WAN(t *testing.T) {
cases := []struct {
members []*serf.Member
expect string
}{
// Not a server
{
members: []*serf.Member{
makeNode("dc2",
"node1",
"96430788-246f-4379-94ce-257f7429e340",
false),
},
expect: "not a server",
},
// Good cluster.
{
members: []*serf.Member{
makeNode("dc2",
"node1",
"6185913b-98d7-4441-bd8f-f7f7d854a4af",
true),
makeNode("dc3",
"node2",
"cda916bc-a357-4a19-b886-59419fcee50c",
true),
},
expect: "",
},
}
delegate := &wanMergeDelegate{}
for i, c := range cases {
if err := delegate.NotifyMerge(c.members); c.expect == "" {
if err != nil {
t.Fatalf("case %d: err: %v", i+1, err)
}
} else {
if err == nil || !strings.Contains(err.Error(), c.expect) {
t.Fatalf("case %d: err: %v", i+1, err)
}
}
}
}