Xray-core/app/router/strategy_leastload_test.go

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package router
import (
"testing"
)
/*
Split into multiple package, need to be tested separately
func TestSelectLeastLoad(t *testing.T) {
settings := &StrategyLeastLoadConfig{
HealthCheck: &HealthPingConfig{
SamplingCount: 10,
},
Expected: 1,
MaxRTT: int64(time.Millisecond * time.Duration(800)),
}
strategy := NewLeastLoadStrategy(settings)
// std 40
strategy.PutResult("a", time.Millisecond*time.Duration(60))
strategy.PutResult("a", time.Millisecond*time.Duration(140))
strategy.PutResult("a", time.Millisecond*time.Duration(60))
strategy.PutResult("a", time.Millisecond*time.Duration(140))
// std 60
strategy.PutResult("b", time.Millisecond*time.Duration(40))
strategy.PutResult("b", time.Millisecond*time.Duration(160))
strategy.PutResult("b", time.Millisecond*time.Duration(40))
strategy.PutResult("b", time.Millisecond*time.Duration(160))
// std 0, but >MaxRTT
strategy.PutResult("c", time.Millisecond*time.Duration(1000))
strategy.PutResult("c", time.Millisecond*time.Duration(1000))
strategy.PutResult("c", time.Millisecond*time.Duration(1000))
strategy.PutResult("c", time.Millisecond*time.Duration(1000))
expected := "a"
actual := strategy.SelectAndPick([]string{"a", "b", "c", "untested"})
if actual != expected {
t.Errorf("expected: %v, actual: %v", expected, actual)
}
}
func TestSelectLeastLoadWithCost(t *testing.T) {
settings := &StrategyLeastLoadConfig{
HealthCheck: &HealthPingConfig{
SamplingCount: 10,
},
Costs: []*StrategyWeight{
{Match: "a", Value: 9},
},
Expected: 1,
}
strategy := NewLeastLoadStrategy(settings, nil)
// std 40, std+c 120
strategy.PutResult("a", time.Millisecond*time.Duration(60))
strategy.PutResult("a", time.Millisecond*time.Duration(140))
strategy.PutResult("a", time.Millisecond*time.Duration(60))
strategy.PutResult("a", time.Millisecond*time.Duration(140))
// std 60
strategy.PutResult("b", time.Millisecond*time.Duration(40))
strategy.PutResult("b", time.Millisecond*time.Duration(160))
strategy.PutResult("b", time.Millisecond*time.Duration(40))
strategy.PutResult("b", time.Millisecond*time.Duration(160))
expected := "b"
actual := strategy.SelectAndPick([]string{"a", "b", "untested"})
if actual != expected {
t.Errorf("expected: %v, actual: %v", expected, actual)
}
}
*/
func TestSelectLeastExpected(t *testing.T) {
strategy := &LeastLoadStrategy{
settings: &StrategyLeastLoadConfig{
Baselines: nil,
Expected: 3,
},
}
nodes := []*node{
{Tag: "a", RTTDeviationCost: 100},
{Tag: "b", RTTDeviationCost: 200},
{Tag: "c", RTTDeviationCost: 300},
{Tag: "d", RTTDeviationCost: 350},
}
expected := 3
ns := strategy.selectLeastLoad(nodes)
if len(ns) != expected {
t.Errorf("expected: %v, actual: %v", expected, len(ns))
}
}
func TestSelectLeastExpected2(t *testing.T) {
strategy := &LeastLoadStrategy{
settings: &StrategyLeastLoadConfig{
Baselines: nil,
Expected: 3,
},
}
nodes := []*node{
{Tag: "a", RTTDeviationCost: 100},
{Tag: "b", RTTDeviationCost: 200},
}
expected := 2
ns := strategy.selectLeastLoad(nodes)
if len(ns) != expected {
t.Errorf("expected: %v, actual: %v", expected, len(ns))
}
}
func TestSelectLeastExpectedAndBaselines(t *testing.T) {
strategy := &LeastLoadStrategy{
settings: &StrategyLeastLoadConfig{
Baselines: []int64{200, 300, 400},
Expected: 3,
},
}
nodes := []*node{
{Tag: "a", RTTDeviationCost: 100},
{Tag: "b", RTTDeviationCost: 200},
{Tag: "c", RTTDeviationCost: 250},
{Tag: "d", RTTDeviationCost: 300},
{Tag: "e", RTTDeviationCost: 310},
}
expected := 3
ns := strategy.selectLeastLoad(nodes)
if len(ns) != expected {
t.Errorf("expected: %v, actual: %v", expected, len(ns))
}
}
func TestSelectLeastExpectedAndBaselines2(t *testing.T) {
strategy := &LeastLoadStrategy{
settings: &StrategyLeastLoadConfig{
Baselines: []int64{200, 300, 400},
Expected: 3,
},
}
nodes := []*node{
{Tag: "a", RTTDeviationCost: 500},
{Tag: "b", RTTDeviationCost: 600},
{Tag: "c", RTTDeviationCost: 700},
{Tag: "d", RTTDeviationCost: 800},
{Tag: "e", RTTDeviationCost: 900},
}
expected := 3
ns := strategy.selectLeastLoad(nodes)
if len(ns) != expected {
t.Errorf("expected: %v, actual: %v", expected, len(ns))
}
}
func TestSelectLeastLoadBaselines(t *testing.T) {
strategy := &LeastLoadStrategy{
settings: &StrategyLeastLoadConfig{
Baselines: []int64{200, 400, 600},
Expected: 0,
},
}
nodes := []*node{
{Tag: "a", RTTDeviationCost: 100},
{Tag: "b", RTTDeviationCost: 200},
{Tag: "c", RTTDeviationCost: 300},
}
expected := 1
ns := strategy.selectLeastLoad(nodes)
if len(ns) != expected {
t.Errorf("expected: %v, actual: %v", expected, len(ns))
}
}
func TestSelectLeastLoadBaselinesNoQualified(t *testing.T) {
strategy := &LeastLoadStrategy{
settings: &StrategyLeastLoadConfig{
Baselines: []int64{200, 400, 600},
Expected: 0,
},
}
nodes := []*node{
{Tag: "a", RTTDeviationCost: 800},
{Tag: "b", RTTDeviationCost: 1000},
}
expected := 0
ns := strategy.selectLeastLoad(nodes)
if len(ns) != expected {
t.Errorf("expected: %v, actual: %v", expected, len(ns))
}
}