code: def test_adding():
      unsafe = '<script type="application/x-some-script">alert("foo");</script>'
      safe = Markup("<em>username</em>")
      assert unsafe + safe == text_type(escape(unsafe)) + text_type(
          safe
      )
  
imports: import pytest
  from markupsafe import escape
  from markupsafe import escape_silent
  from markupsafe import Markup
  from markupsafe._compat import PY2
  from markupsafe._compat import text_type
label_desc: Use image node_id 1 for calling a global function with example usage: test_adding() without return types