forked from TrueCloudLab/frostfs-s3-gw
Alex Vanin
cf18158da4
Periodic white space XML writer sends XML header and white spaces to the io.Writer. Signed-off-by: Alex Vanin <a.vanin@yadro.com>
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
package handler
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/xml"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestPeriodicWriter(t *testing.T) {
|
|
const dur = 100 * time.Millisecond
|
|
const whitespaces = 8
|
|
expected := []byte(xml.Header)
|
|
for i := 0; i < whitespaces; i++ {
|
|
expected = append(expected, []byte(" ")...)
|
|
}
|
|
|
|
t.Run("writes data", func(t *testing.T) {
|
|
buf := bytes.NewBuffer(nil)
|
|
stop := periodicXMLWriter(buf, dur)
|
|
|
|
// N number of whitespaces + half durations to guarantee at least N writes in buffer
|
|
time.Sleep(whitespaces*dur + dur/2)
|
|
require.True(t, stop())
|
|
require.Equal(t, expected, buf.Bytes())
|
|
|
|
t.Run("no additional data after stop", func(t *testing.T) {
|
|
time.Sleep(2 * dur)
|
|
require.Equal(t, expected, buf.Bytes())
|
|
})
|
|
})
|
|
|
|
t.Run("does not write data", func(t *testing.T) {
|
|
buf := bytes.NewBuffer(nil)
|
|
stop := periodicXMLWriter(buf, dur)
|
|
time.Sleep(dur / 2)
|
|
require.False(t, stop())
|
|
require.Empty(t, buf.Bytes())
|
|
|
|
t.Run("disabled", func(t *testing.T) {
|
|
stop = periodicXMLWriter(buf, 0)
|
|
require.False(t, stop())
|
|
require.Empty(t, buf.Bytes())
|
|
})
|
|
})
|
|
}
|