t.Fatalf("len(small) is %d, less than %d", len(small), len(all))
	}
	for i, n := range all {
		if small[i] != n {
			t.Errorf("small read %q mismatch: %v", small[i], n)
		}
	}
}

func TestReaddirNValues(t *testing.T) {
	if testing.Short() {
		t.Skip("test.short; skipping")
	}
	t.Parallel()

	dir := t.TempDir()
	for i := 1; i <= 105; i++ {
		f, err := Create(filepath.Join(dir, fmt.Sprintf("%d", i)))