30 lines
524 B
Go
30 lines
524 B
Go
package helper
|
|
|
|
import (
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/shoenig/test/must"
|
|
)
|
|
|
|
func TestCluster_RandomStagger(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
input time.Duration
|
|
}{
|
|
{name: "positive", input: 1 * time.Second},
|
|
{name: "negative", input: -1 * time.Second},
|
|
{name: "zero", input: 0},
|
|
}
|
|
|
|
abs := func(d time.Duration) time.Duration {
|
|
return Max(d, -d)
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
result := RandomStagger(tc.input)
|
|
must.GreaterEq(t, result, 0)
|
|
must.LessEq(t, result, abs(tc.input))
|
|
}
|
|
}
|