102 lines
1.7 KiB
Go
102 lines
1.7 KiB
Go
package ratelimiter
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import (
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"sync"
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"testing"
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"time"
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)
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func TestRateLimiter_Limit_Errors(t *testing.T) {
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type TestCase struct {
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Name string
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Conf Config
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N int
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ErrCount int
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DT time.Duration
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}
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cases := []TestCase{
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{
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Name: "no burst, no wait",
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Conf: Config{
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BurstLimit: 0,
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FillPeriod: 100 * time.Millisecond,
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MaxWaitCount: 0,
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},
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N: 32,
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ErrCount: 31,
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DT: 100 * time.Millisecond,
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}, {
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Name: "no wait",
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Conf: Config{
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BurstLimit: 10,
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FillPeriod: 100 * time.Millisecond,
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MaxWaitCount: 0,
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},
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N: 32,
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ErrCount: 22,
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DT: 0,
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}, {
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Name: "no burst",
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Conf: Config{
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BurstLimit: 0,
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FillPeriod: 10 * time.Millisecond,
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MaxWaitCount: 10,
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},
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N: 32,
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ErrCount: 22,
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DT: 100 * time.Millisecond,
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}, {
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Name: "burst and wait",
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Conf: Config{
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BurstLimit: 10,
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FillPeriod: 10 * time.Millisecond,
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MaxWaitCount: 10,
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},
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N: 32,
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ErrCount: 12,
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DT: 100 * time.Millisecond,
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},
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}
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for _, tc := range cases {
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wg := sync.WaitGroup{}
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l := New(tc.Conf)
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errs := make([]error, tc.N)
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t0 := time.Now()
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for i := 0; i < tc.N; i++ {
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wg.Add(1)
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go func(i int) {
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errs[i] = l.Limit()
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wg.Done()
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}(i)
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}
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wg.Wait()
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dt := time.Since(t0)
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errCount := 0
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for _, err := range errs {
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if err != nil {
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errCount++
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}
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}
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if errCount != tc.ErrCount {
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t.Fatalf("%s: Expected %d errors but got %d.",
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tc.Name, tc.ErrCount, errCount)
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}
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if dt < tc.DT {
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t.Fatal(tc.Name, dt, tc.DT)
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}
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if dt > tc.DT+10*time.Millisecond {
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t.Fatal(tc.Name, dt, tc.DT)
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}
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}
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}
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