go-common/library/stat/summary/summary_test.go
2019-04-22 18:49:16 +08:00

70 lines
1.5 KiB
Go

package summary
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestSummaryMinInterval(t *testing.T) {
count := New(time.Second/2, 10)
tk1 := time.NewTicker(5 * time.Millisecond)
defer tk1.Stop()
for i := 0; i < 100; i++ {
<-tk1.C
count.Add(2)
}
v, c := count.Value()
t.Logf("count value: %d, %d\n", v, c)
// 10% of error when bucket is 10
if v < 190 || v > 210 {
t.Errorf("expect value in [90-110] get %d", v)
}
// 10% of error when bucket is 10
if c < 90 || c > 110 {
t.Errorf("expect value in [90-110] get %d", v)
}
}
func TestSummary(t *testing.T) {
s := New(time.Second, 10)
t.Run("add", func(t *testing.T) {
s.Add(1)
v, c := s.Value()
assert.Equal(t, v, int64(1))
assert.Equal(t, c, int64(1))
})
time.Sleep(time.Millisecond * 110)
t.Run("add2", func(t *testing.T) {
s.Add(1)
v, c := s.Value()
assert.Equal(t, v, int64(2))
assert.Equal(t, c, int64(2))
})
time.Sleep(time.Millisecond * 900) // expire one bucket, 110 + 900
t.Run("expire", func(t *testing.T) {
v, c := s.Value()
assert.Equal(t, v, int64(1))
assert.Equal(t, c, int64(1))
s.Add(1)
v, c = s.Value()
assert.Equal(t, v, int64(2)) // expire one bucket
assert.Equal(t, c, int64(2)) // expire one bucket
})
time.Sleep(time.Millisecond * 1100)
t.Run("expire_all", func(t *testing.T) {
v, c := s.Value()
assert.Equal(t, v, int64(0))
assert.Equal(t, c, int64(0))
})
t.Run("reset", func(t *testing.T) {
s.Reset()
v, c := s.Value()
assert.Equal(t, v, int64(0))
assert.Equal(t, c, int64(0))
})
}