from abjad import *


def test_append_01( ):
   '''Append one container to the right.'''

   t = Voice(Container(construct.run(2)) * 3)
   pitchtools.diatonicize(t)
   p = Beam(t[1])

   r'''\new Voice {
      {
         c'8
         d'8
      }
      {
         e'8 [
         f'8 ]
      }
      {
         g'8
         a'8
      }
   }'''

   assert t.format == "\\new Voice {\n\t{\n\t\tc'8\n\t\td'8\n\t}\n\t{\n\t\te'8 [\n\t\tf'8 ]\n\t}\n\t{\n\t\tg'8\n\t\ta'8\n\t}\n}"

   p.append(t[2])

   r'''\new Voice {
      {
         c'8
         d'8
      }
      {
         e'8 [
         f'8
      }
      {
         g'8
         a'8 ]
      }
   }'''

   assert t.format == "\\new Voice {\n\t{\n\t\tc'8\n\t\td'8\n\t}\n\t{\n\t\te'8 [\n\t\tf'8\n\t}\n\t{\n\t\tg'8\n\t\ta'8 ]\n\t}\n}"
 

def test_append_02( ):
   '''Append one leaf to the right.'''
   
   t = Voice(Container(construct.run(2)) * 3)
   pitchtools.diatonicize(t)
   p = Beam(t[1])

   r'''\new Voice {
      {
         c'8
         d'8
      }
      {
         e'8 [
         f'8 ]
      }
      {
         g'8
         a'8
      }
   }'''

   assert t.format == "\\new Voice {\n\t{\n\t\tc'8\n\t\td'8\n\t}\n\t{\n\t\te'8 [\n\t\tf'8 ]\n\t}\n\t{\n\t\tg'8\n\t\ta'8\n\t}\n}"

   p.append(t[2][0])

   r'''\new Voice {
      {
         c'8
         d'8
      }
      {
         e'8 [
         f'8
      }
      {
         g'8 ]
         a'8
      }
   }'''

   assert t.format == "\\new Voice {\n\t{\n\t\tc'8\n\t\td'8\n\t}\n\t{\n\t\te'8 [\n\t\tf'8\n\t}\n\t{\n\t\tg'8 ]\n\t\ta'8\n\t}\n}"
