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package utils
import (
"bytes"
"testing"
)
func TestOnceWriter(t *testing.T) {
innerWriter := bytes.NewBuffer(nil)
counter := 0
onceWriter := NewOnceWriter(innerWriter, func() {
counter += 1
})
_, _ = onceWriter.Write([]byte("hello"))
_, _ = onceWriter.Write([]byte("hello"))
if counter != 1 {
t.Errorf("expected counter to be 1, got %d", counter)
}
}
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