old_contents: """Test parsing of single entries."""
  
  import bibpy
  
  # TODO: Test both parsers
  
  
  def test_single_comment():
      s = "This is a comment"
      comments = bibpy.read_string(s, 'bibtex').comments
  
      assert comments[0] == s
  
  
  def test_single_comment_entry():
      contents = " I can write whatever I want here "
      s = "@comment{ I can write whatever I want here }"
      comment_entries = bibpy.read_string(s, 'bibtex').comment_entries
  
      assert type(comment_entries[0]) is bibpy.entry.Comment
      assert comment_entries[0].value == contents
  
  
  def test_single_string_entry():
      variable = "var"
      value = "March"
      s = "@string{ " + variable + " = " + value + " }"
      strings = bibpy.read_string(s, 'bibtex').strings
  
      assert type(strings[0]) is bibpy.entry.String
      assert strings[0].variable == variable
      assert strings[0].value == value
  
  
  def test_single_preamble_entry():
      contents = "$1$ LaTeX code $\sqrt{2}"
      s = "@preamble( " + contents + " )"
      preambles = bibpy.read_string(s, 'bibtex').preambles
  
      assert type(preambles[0]) is bibpy.entry.Preamble
      assert preambles[0].value == contents
  
  
  def test_single_entry():
      s = "@article{example_key,author={McLovin'}," +\
          "title={Hawaiian Organ Donation}}"
  
      entries = bibpy.read_string(s, 'bibtex').entries
  
      assert type(entries[0]) is bibpy.entry.Entry
      assert entries[0].bibtype == 'article'
      assert entries[0].bibkey == 'example_key'
      assert entries[0].author == 'McLovin\''
      assert entries[0].title == 'Hawaiian Organ Donation'
  
  
  def test_single_string_expr():
      s = 'var1 # " report on the " # Var_2 # " Conglomerate"'
  
      assert bibpy.parser.parse_string_expr(s) == ['var1', " report on the ",
                                                   'Var_2', " Conglomerate"]
      assert bibpy.parser.parse_string_expr('') == ''
  
new_contents: """Test parsing of single entries."""
  
  import bibpy
  
  # TODO: Test both parsers
  
  
  def test_single_comment():
      s = "This is a comment"
      comments = bibpy.read_string(s, 'bibtex').comments
  
      assert comments[0] == s
  
  
  def test_single_comment_entry():
      contents = " I can write whatever I want here "
      s = "@comment{ I can write whatever I want here }"
      comment_entries = bibpy.read_string(s, 'bibtex').comment_entries
  
      assert type(comment_entries[0]) is bibpy.entry.Comment
      assert comment_entries[0].value == contents
  
  
  def test_single_string_entry():
      variable = "var"
      value = "March"
      s = "@string{ " + variable + " = " + value + " }"
      strings = bibpy.read_string(s, 'bibtex').strings
  
      assert type(strings[0]) is bibpy.entry.String
      assert strings[0].variable == variable
      assert strings[0].value == value
  
  
  def test_single_preamble_entry():
      contents = "$1$ LaTeX code $\sqrt{2}"
      s = "@preamble( " + contents + " )"
      preambles = bibpy.read_string(s, 'bibtex').preambles
  
      assert type(preambles[0]) is bibpy.entry.Preamble
      assert preambles[0].value == contents
  
  
  def test_single_capitalized_preamble_entry():
      contents = "$1$ LaTeX code $\sqrt{2}"
      s = "@Preamble( " + contents + " )"
      preambles = bibpy.read_string(s, 'bibtex').preambles
  
      assert type(preambles[0]) is bibpy.entry.Preamble
      assert preambles[0].value == contents
  
  
  def test_single_entry():
      s = "@article{example_key,author={McLovin'}," +\
          "title={Hawaiian Organ Donation}}"
  
      entries = bibpy.read_string(s, 'bibtex').entries
  
      assert type(entries[0]) is bibpy.entry.Entry
      assert entries[0].bibtype == 'article'
      assert entries[0].bibkey == 'example_key'
      assert entries[0].author == 'McLovin\''
      assert entries[0].title == 'Hawaiian Organ Donation'
  
  
  def test_single_string_expr():
      s = 'var1 # " report on the " # Var_2 # " Conglomerate"'
  
      assert bibpy.parser.parse_string_expr(s) == ['var1', " report on the ",
                                                   'Var_2', " Conglomerate"]
      assert bibpy.parser.parse_string_expr('') == ''
  
subject: Add test for parsing case-insensitive entry types