81 lines
1.5 KiB
Go
81 lines
1.5 KiB
Go
package limit
|
|
|
|
import (
|
|
"context"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/redis/go-redis/v9"
|
|
|
|
"github.com/alicebob/miniredis/v2"
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestTokenLimit_WithCtx(t *testing.T) {
|
|
const (
|
|
total = 100
|
|
rate = 5
|
|
burst = 10
|
|
)
|
|
store, _ := CreateRedisWithClean(t)
|
|
l := NewTokenLimiter(rate, burst, store, "tokenlimit")
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
ok := l.AllowCtx(ctx)
|
|
assert.True(t, ok)
|
|
|
|
cancel()
|
|
for i := 0; i < total; i++ {
|
|
ok := l.AllowCtx(ctx)
|
|
assert.False(t, ok)
|
|
assert.False(t, l.monitorStarted)
|
|
}
|
|
}
|
|
|
|
func TestTokenLimit_Take(t *testing.T) {
|
|
store, _ := CreateRedisWithClean(t)
|
|
|
|
const (
|
|
total = 100
|
|
rate = 5
|
|
burst = 10
|
|
)
|
|
l := NewTokenLimiter(rate, burst, store, "tokenlimit")
|
|
var allowed int
|
|
for i := 0; i < total; i++ {
|
|
time.Sleep(time.Second / time.Duration(total))
|
|
if l.Allow() {
|
|
allowed++
|
|
}
|
|
}
|
|
|
|
assert.True(t, allowed >= burst+rate)
|
|
}
|
|
|
|
func TestTokenLimit_TakeBurst(t *testing.T) {
|
|
store, _ := CreateRedisWithClean(t)
|
|
|
|
const (
|
|
total = 100
|
|
rate = 5
|
|
burst = 10
|
|
)
|
|
l := NewTokenLimiter(rate, burst, store, "tokenlimit")
|
|
var allowed int
|
|
for i := 0; i < total; i++ {
|
|
if l.Allow() {
|
|
allowed++
|
|
}
|
|
}
|
|
|
|
assert.True(t, allowed >= burst)
|
|
}
|
|
|
|
// CreateRedisWithClean returns an in process redis.Redis and a clean function.
|
|
func CreateRedisWithClean(t *testing.T) (r *redis.Client, clean func()) {
|
|
mr := miniredis.RunT(t)
|
|
return redis.NewClient(&redis.Options{
|
|
Addr: mr.Addr(),
|
|
}), mr.Close
|
|
}
|