Add test for \addlyrics

Author: eoma

tests/test_xml.py

@@ -33,6 +33,9 @@ def test_tuplet():
 def test_lyrics_simple_lyricsto():
     compare_output('lyrics_simple_lyricsto')
 
+def test_lyrics_simple_addlyrics():
+    compare_output('lyrics_simple_addlyrics')
+
 def ly_to_xml(filename):
     """Read Lilypond file and return XML string."""
     writer = ly.musicxml.writer()

tests/test_xml_files/lyrics_simple_addlyrics.ly

@@ -0,0 +1,27 @@
+\version "2.19.55"
+
+\header {
+  title = "lyrics simple addlyrics"
+}
+
+verseOne = \lyricmode {
+ \set stanza = "v1"
+ My long sing song for voice one
+}
+verseTwo = \lyricmode {
+ \set stanza = "v2"
+ This is verse two, the last verse
+}
+
+\score {
+  \new Staff {
+    \relative c' {
+      \clef treble
+      c'32 c c16 c8 c4 c2 |
+      c1 |
+    }
+  }
+  \addlyrics \verseOne
+  \addlyrics \verseTwo
+  \layout { }
+}