| Server IP : 185.124.137.235 / Your IP : 216.73.216.250 Web Server : LiteSpeed System : Linux id-dci-web1986.main-hosting.eu 5.14.0-611.26.1.el9_7.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jan 29 05:24:47 EST 2026 x86_64 User : u686484674 ( 686484674) PHP Version : 8.0.30 Disable Function : system, exec, shell_exec, passthru, mysql_list_dbs, ini_alter, dl, symlink, link, chgrp, leak, popen, apache_child_terminate, virtual, mb_send_mail MySQL : OFF | cURL : ON | WGET : ON | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /proc/./self/root/opt/go/pkg/mod/github.com/hashicorp/memberlist@v0.5.1/ |
Upload File : |
// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package memberlist
import (
"testing"
"time"
)
func TestSuspicion_remainingSuspicionTime(t *testing.T) {
cases := []struct {
n int32
k int32
elapsed time.Duration
min time.Duration
max time.Duration
expected time.Duration
}{
{0, 3, 0, 2 * time.Second, 30 * time.Second, 30 * time.Second},
{1, 3, 2 * time.Second, 2 * time.Second, 30 * time.Second, 14 * time.Second},
{2, 3, 3 * time.Second, 2 * time.Second, 30 * time.Second, 4810 * time.Millisecond},
{3, 3, 4 * time.Second, 2 * time.Second, 30 * time.Second, -2 * time.Second},
{4, 3, 5 * time.Second, 2 * time.Second, 30 * time.Second, -3 * time.Second},
{5, 3, 10 * time.Second, 2 * time.Second, 30 * time.Second, -8 * time.Second},
}
for i, c := range cases {
remaining := remainingSuspicionTime(c.n, c.k, c.elapsed, c.min, c.max)
if remaining != c.expected {
t.Errorf("case %d: remaining %9.6f != expected %9.6f", i, remaining.Seconds(), c.expected.Seconds())
}
}
}
func TestSuspicion_Timer(t *testing.T) {
const k = 3
const min = 500 * time.Millisecond
const max = 2 * time.Second
type pair struct {
from string
newInfo bool
}
cases := []struct {
numConfirmations int
from string
confirmations []pair
expected time.Duration
}{
{
0,
"me",
[]pair{},
max,
},
{
1,
"me",
[]pair{
pair{"me", false},
pair{"foo", true},
},
1250 * time.Millisecond,
},
{
1,
"me",
[]pair{
pair{"me", false},
pair{"foo", true},
pair{"foo", false},
pair{"foo", false},
},
1250 * time.Millisecond,
},
{
2,
"me",
[]pair{
pair{"me", false},
pair{"foo", true},
pair{"bar", true},
},
810 * time.Millisecond,
},
{
3,
"me",
[]pair{
pair{"me", false},
pair{"foo", true},
pair{"bar", true},
pair{"baz", true},
},
min,
},
{
3,
"me",
[]pair{
pair{"me", false},
pair{"foo", true},
pair{"bar", true},
pair{"baz", true},
pair{"zoo", false},
},
min,
},
}
for i, c := range cases {
ch := make(chan time.Duration, 1)
start := time.Now()
f := func(numConfirmations int) {
if numConfirmations != c.numConfirmations {
t.Errorf("case %d: bad %d != %d", i, numConfirmations, c.numConfirmations)
}
ch <- time.Now().Sub(start)
}
// Create the timer and add the requested confirmations. Wait
// the fudge amount to help make sure we calculate the timeout
// overall, and don't accumulate extra time.
s := newSuspicion(c.from, k, min, max, f)
fudge := 25 * time.Millisecond
for _, p := range c.confirmations {
time.Sleep(fudge)
if s.Confirm(p.from) != p.newInfo {
t.Fatalf("case %d: newInfo mismatch for %s", i, p.from)
}
}
// Wait until right before the timeout and make sure the
// timer hasn't fired.
already := time.Duration(len(c.confirmations)) * fudge
time.Sleep(c.expected - already - fudge)
select {
case d := <-ch:
t.Fatalf("case %d: should not have fired (%9.6f)", i, d.Seconds())
default:
}
// Wait through the timeout and a little after and make sure it
// fires.
time.Sleep(2 * fudge)
select {
case <-ch:
default:
t.Fatalf("case %d: should have fired", i)
}
// Confirm after to make sure it handles a negative remaining
// time correctly and doesn't fire again.
s.Confirm("late")
time.Sleep(c.expected + 2*fudge)
select {
case d := <-ch:
t.Fatalf("case %d: should not have fired (%9.6f)", i, d.Seconds())
default:
}
}
}
func TestSuspicion_Timer_ZeroK(t *testing.T) {
ch := make(chan struct{}, 1)
f := func(int) {
ch <- struct{}{}
}
// This should select the min time since there are no expected
// confirmations to accelerate the timer.
s := newSuspicion("me", 0, 25*time.Millisecond, 30*time.Second, f)
if s.Confirm("foo") {
t.Fatalf("should not provide new information")
}
select {
case <-ch:
case <-time.After(50 * time.Millisecond):
t.Fatalf("should have fired")
}
}
func TestSuspicion_Timer_Immediate(t *testing.T) {
ch := make(chan struct{}, 1)
f := func(int) {
ch <- struct{}{}
}
// This should underflow the timeout and fire immediately.
s := newSuspicion("me", 1, 100*time.Millisecond, 30*time.Second, f)
time.Sleep(200 * time.Millisecond)
s.Confirm("foo")
// Wait a little while since the function gets called in a goroutine.
select {
case <-ch:
case <-time.After(25 * time.Millisecond):
t.Fatalf("should have fired")
}
}