open-consul/agent/consul/autopilot/promotion_test.go

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2017-12-12 00:38:52 +00:00
package autopilot
import (
"testing"
"time"
"github.com/hashicorp/raft"
"github.com/pascaldekloe/goe/verify"
)
func TestPromotion(t *testing.T) {
config := &Config{
LastContactThreshold: 5 * time.Second,
MaxTrailingLogs: 100,
ServerStabilizationTime: 3 * time.Second,
}
cases := []struct {
name string
conf *Config
health OperatorHealthReply
servers []raft.Server
promotions []raft.Server
}{
{
name: "one stable voter, no promotions",
conf: config,
health: OperatorHealthReply{
Servers: []ServerHealth{
{
ID: "a",
Healthy: true,
StableSince: time.Now().Add(-10 * time.Second),
},
},
},
servers: []raft.Server{
{ID: "a", Suffrage: raft.Voter},
},
promotions: []raft.Server{},
},
{
name: "one stable nonvoter, should be promoted",
conf: config,
health: OperatorHealthReply{
Servers: []ServerHealth{
{
ID: "a",
Healthy: true,
StableSince: time.Now().Add(-10 * time.Second),
},
{
ID: "b",
Healthy: true,
StableSince: time.Now().Add(-10 * time.Second),
},
},
},
servers: []raft.Server{
{ID: "a", Suffrage: raft.Voter},
{ID: "b", Suffrage: raft.Nonvoter},
},
promotions: []raft.Server{
{ID: "b", Suffrage: raft.Nonvoter},
},
},
{
name: "unstable servers, neither should be promoted",
conf: config,
health: OperatorHealthReply{
Servers: []ServerHealth{
{
ID: "a",
Healthy: true,
StableSince: time.Now().Add(-10 * time.Second),
},
{
ID: "b",
Healthy: false,
StableSince: time.Now().Add(-10 * time.Second),
},
{
ID: "c",
Healthy: true,
StableSince: time.Now().Add(-1 * time.Second),
},
},
},
servers: []raft.Server{
{ID: "a", Suffrage: raft.Voter},
{ID: "b", Suffrage: raft.Nonvoter},
{ID: "c", Suffrage: raft.Nonvoter},
},
promotions: []raft.Server{},
},
}
for _, tc := range cases {
promotions := PromoteStableServers(tc.conf, tc.health, tc.servers)
verify.Values(t, tc.name, tc.promotions, promotions)
}
}