/usr/share/gocode/src/github.com/hashicorp/memberlist/suspicion_test.go is in golang-github-hashicorp-memberlist-dev 0.1.0-2.
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 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | 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) {
t.Skip("Skipping timing-dependent test.")
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")
}
}
|