+ dfxp_data_no_default_namespace = '''<?xml version="1.0" encoding="UTF-8"?>
+ <tt xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">
+ <body>
+ <div xml:lang="en">
+ <p begin="0" end="1">The first line</p>
+ </div>
+ </body>
+ </tt>'''
+ srt_data = '''1
+00:00:00,000 --> 00:00:01,000
+The first line
+
+'''
+ self.assertEqual(dfxp2srt(dfxp_data_no_default_namespace), srt_data)
+