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package graphdriver // import "github.com/docker/docker/daemon/graphdriver"
import (
"os"
"path/filepath"
"testing"
"gotest.tools/v3/assert"
)
func TestIsEmptyDir(t *testing.T) {
tmp, err := os.MkdirTemp("", "test-is-empty-dir")
assert.NilError(t, err)
defer os.RemoveAll(tmp)
d := filepath.Join(tmp, "empty-dir")
err = os.Mkdir(d, 0o755)
assert.NilError(t, err)
empty := isEmptyDir(d)
assert.Check(t, empty)
d = filepath.Join(tmp, "dir-with-subdir")
err = os.MkdirAll(filepath.Join(d, "subdir"), 0o755)
assert.NilError(t, err)
empty = isEmptyDir(d)
assert.Check(t, !empty)
d = filepath.Join(tmp, "dir-with-empty-file")
err = os.Mkdir(d, 0o755)
assert.NilError(t, err)
f, err := os.CreateTemp(d, "file")
assert.NilError(t, err)
defer f.Close()
empty = isEmptyDir(d)
assert.Check(t, !empty)
}
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