frostfs-node/pkg/util/sync/key_locker_test.go
Ekaterina Lebedeva a685fcdc96
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[#1317] go.mod: Use range over int
Since Go 1.22 a "for" statement with a "range" clause is able
to iterate through integer values from zero to an upper limit.

gopatch script:
@@
var i, e expression
@@
-for i := 0; i <= e - 1; i++ {
+for i := range e {
    ...
}

@@
var i, e expression
@@
-for i := 0; i <= e; i++ {
+for i := range e + 1 {
    ...
}

@@
var i, e expression
@@
-for i := 0; i < e; i++ {
+for i := range e {
    ...
}

Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>
2024-09-03 13:00:54 +03:00

32 lines
561 B
Go

package sync
import (
"context"
"testing"
"time"
"github.com/stretchr/testify/require"
"golang.org/x/sync/errgroup"
)
func TestKeyLocker(t *testing.T) {
taken := false
eg, _ := errgroup.WithContext(context.Background())
keyLocker := NewKeyLocker[int]()
for range 100 {
eg.Go(func() error {
keyLocker.Lock(0)
defer keyLocker.Unlock(0)
require.False(t, taken)
taken = true
require.True(t, taken)
time.Sleep(10 * time.Millisecond)
taken = false
require.False(t, taken)
return nil
})
}
require.NoError(t, eg.Wait())
}