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go-zero/core/queue/multiqueuepusher_test.go

40 lines
840 B
Go

package queue
import (
"fmt"
"math"
"strconv"
"testing"
"github.com/stretchr/testify/assert"
)
func TestMultiQueuePusher(t *testing.T) {
const numPushers = 100
var pushers []Pusher
var mockedPushers []*mockedPusher
for i := 0; i < numPushers; i++ {
p := &mockedPusher{
name: "pusher:" + strconv.Itoa(i),
}
pushers = append(pushers, p)
mockedPushers = append(mockedPushers, p)
}
pusher := NewMultiQueuePusher(pushers)
assert.True(t, len(pusher.Name()) > 0)
for i := 0; i < 1000; i++ {
_ = pusher.Push("item")
}
var counts []int
for _, p := range mockedPushers {
counts = append(counts, p.count)
}
mean := calcMean(counts)
variance := calcVariance(mean, counts)
assert.True(t, math.Abs(mean-1000*(1-failProba)) < 10)
assert.True(t, variance < 100, fmt.Sprintf("too big variance - %.2f", variance))
}