func Example() {
// run a bench for 1 minute, tracking latencies from 1µs to 1 minute
bench := buster.Bench{
Duration: 1 * time.Minute,
MinLatency: 1 * time.Microsecond,
MaxLatency: 1 * time.Minute,
}
r := bench.Run(
10, // concurrent workers
1000, // 1000 ops/sec total
func(id int, gen *buster.Generator) error { // the job to be run
client := &http.Client{}
return gen.Do(func() error {
// perform a GET request
resp, err := client.Get("http://www.google.com/")
if err != nil {
return err
}
// read the body
io.Copy(ioutil.Discard, resp.Body)
return resp.Body.Close()
})
},
)
fmt.Println(r)
}
func TestBenchRunErrors(t *testing.T) {
bench := buster.Bench{
Duration: 1 * time.Second,
MinLatency: 1 * time.Millisecond,
MaxLatency: 1 * time.Second,
}
r := bench.Run(10, 100, func(id int, gen *buster.Generator) error {
return errors.New("woo hoo")
})
if v, want := len(r.Errors), 10; v != want {
t.Fatalf("Error count was %d, but expected %d", v, want)
}
}
func TestBenchRunFailures(t *testing.T) {
bench := buster.Bench{
Duration: 1 * time.Second,
MinLatency: 1 * time.Millisecond,
MaxLatency: 1 * time.Second,
}
r := bench.Run(10, 1000, func(id int, gen *buster.Generator) error {
return gen.Do(func() error {
return errors.New("woo hoo")
})
})
if r.Failure == 0 {
t.Errorf("Failure count was 0, but expected %d", r.Failure)
}
}
func TestBenchRun(t *testing.T) {
bench := buster.Bench{
Duration: 1 * time.Second,
MinLatency: 1 * time.Millisecond,
MaxLatency: 1 * time.Second,
}
r := bench.Run(10, 1000, func(id int, gen *buster.Generator) error {
return gen.Do(func() error {
return nil
})
})
if v, want := r.Concurrency, 10; v != want {
t.Errorf("Concurrency was %d, but expected %d", v, want)
}
}