/usr/share/gocode/src/github.com/hashicorp/memberlist/integ_test.go is in golang-github-hashicorp-memberlist-dev 0.0~git20160329.0.88ac4de-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | package memberlist
import (
"fmt"
"log"
"os"
"testing"
"time"
)
// CheckInteg will skip a test if integration testing is not enabled.
func CheckInteg(t *testing.T) {
if !IsInteg() {
t.SkipNow()
}
}
// IsInteg returns a boolean telling you if we're in integ testing mode.
func IsInteg() bool {
return os.Getenv("INTEG_TESTS") != ""
}
// Tests the memberlist by creating a cluster of 100 nodes
// and checking that we get strong convergence of changes.
func TestMemberlist_Integ(t *testing.T) {
CheckInteg(t)
num := 16
var members []*Memberlist
secret := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
eventCh := make(chan NodeEvent, num)
addr := "127.0.0.1"
for i := 0; i < num; i++ {
c := DefaultLANConfig()
c.Name = fmt.Sprintf("%s:%d", addr, 12345+i)
c.BindAddr = addr
c.BindPort = 12345 + i
c.ProbeInterval = 20 * time.Millisecond
c.ProbeTimeout = 100 * time.Millisecond
c.GossipInterval = 20 * time.Millisecond
c.PushPullInterval = 200 * time.Millisecond
c.SecretKey = secret
if i == 0 {
c.Events = &ChannelEventDelegate{eventCh}
}
m, err := Create(c)
if err != nil {
t.Fatalf("unexpected err: %s", err)
}
members = append(members, m)
defer m.Shutdown()
if i > 0 {
last := members[i-1]
num, err := m.Join([]string{last.config.Name})
if num == 0 || err != nil {
t.Fatalf("unexpected err: %s", err)
}
}
}
// Wait and print debug info
breakTimer := time.After(250 * time.Millisecond)
WAIT:
for {
select {
case e := <-eventCh:
if e.Event == NodeJoin {
log.Printf("[DEBUG] Node join: %v (%d)", *e.Node, members[0].NumMembers())
} else {
log.Printf("[DEBUG] Node leave: %v (%d)", *e.Node, members[0].NumMembers())
}
case <-breakTimer:
break WAIT
}
}
for idx, m := range members {
got := m.NumMembers()
if got != num {
t.Errorf("bad num members at idx %d. Expected %d. Got %d.",
idx, num, got)
}
}
}
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