if err != nil {
		t.Errorf("exec.LookPath(%q): %v", pythonPath, err)
	}
	if p != pythonPath {
		t.Errorf("exec.LookPath(%q) = %q; want %q", pythonPath, p, pythonPath)
	}
}

func TestIllformedUTF16FileName(t *testing.T) {
	dir := t.TempDir()
	const sep = string(os.PathSeparator)
	if !strings.HasSuffix(dir, sep) {
		dir += sep
	}