assert.Equal(t, m.Mode(), 0o750)

	body, _ := io.ReadAll(f)
	// Contents should be copied
	assert.Equal(t, body, []byte("hello world"))
}

func TestCopy(t *testing.T) {
	copyTest(t, Copy)
}

func TestAtomicCopy(t *testing.T) {
	copyTest(t, AtomicCopy)
}

func TestAtomicWrite(t *testing.T) {
	d := t.TempDir()
	file := filepath.Join(d, "test")
	data := []byte("hello world")
	err := AtomicWrite(file, data, 0o750)