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package s3api
import (
"github.com/chrislusf/seaweedfs/weed/pb/s3_pb"
"github.com/chrislusf/seaweedfs/weed/s3api/s3_constants"
"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
"net/http"
"sync"
"sync/atomic"
"testing"
)
type TestLimitCase struct {
actionName string
limitType string
bucketLimitValue int64
globalLimitValue int64
routineCount int
reqBytes int64
successCount int64
}
var (
bucket = "/test"
action = s3_constants.ACTION_READ
TestLimitCases = []*TestLimitCase{
{action, s3_constants.LimitTypeCount, 5, 5, 6, 1024, 5},
{action, s3_constants.LimitTypeCount, 6, 6, 6, 1024, 6},
{action, s3_constants.LimitTypeCount, 5, 6, 6, 1024, 5},
{action, s3_constants.LimitTypeBytes, 1024, 1024, 6, 200, 5},
{action, s3_constants.LimitTypeBytes, 1200, 1200, 6, 200, 6},
{action, s3_constants.LimitTypeBytes, 11990, 11990, 60, 200, 59},
{action, s3_constants.LimitTypeBytes, 11790, 11990, 70, 200, 58},
}
)
func TestLimit(t *testing.T) {
for _, tc := range TestLimitCases {
circuitBreakerConfig := &s3_pb.S3CircuitBreakerConfig{
Global: &s3_pb.S3CircuitBreakerOptions{
Enabled: true,
Actions: map[string]int64{
s3_constants.Concat(tc.actionName, tc.limitType): tc.globalLimitValue,
s3_constants.Concat(tc.actionName, tc.limitType): tc.globalLimitValue,
},
},
Buckets: map[string]*s3_pb.S3CircuitBreakerOptions{
bucket: {
Enabled: true,
Actions: map[string]int64{
s3_constants.Concat(tc.actionName, tc.limitType): tc.bucketLimitValue,
},
},
},
}
circuitBreaker := &CircuitBreaker{
counters: make(map[string]*int64),
limitations: make(map[string]int64),
}
err := circuitBreaker.loadCircuitBreakerConfig(circuitBreakerConfig)
if err != nil {
t.Fatal(err)
}
successCount := doLimit(circuitBreaker, tc.routineCount, &http.Request{ContentLength: tc.reqBytes})
if successCount != tc.successCount {
t.Errorf("successCount not equal, expect=%d, actual=%d", tc.successCount, successCount)
}
}
}
func doLimit(circuitBreaker *CircuitBreaker, routineCount int, r *http.Request) int64 {
var successCounter int64
resultCh := make(chan []func(), routineCount)
var wg sync.WaitGroup
for i := 0; i < routineCount; i++ {
wg.Add(1)
go func() {
defer wg.Done()
rollbackFn, errCode := circuitBreaker.limit(r, bucket, action)
if errCode == s3err.ErrNone {
atomic.AddInt64(&successCounter, 1)
}
resultCh <- rollbackFn
}()
}
wg.Wait()
close(resultCh)
for fns := range resultCh {
for _, fn := range fns {
fn()
}
}
return successCounter
}
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