text: # -*- coding: utf-8 -*-
  """
      Pygments HTML formatter tests
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
      :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
      :license: BSD, see LICENSE for details.
  """
  
  from __future__ import print_function
  
  import io
  import os
  import re
  import unittest
  import tempfile
  from os.path import join, dirname, isfile
  
  from pygments.util import StringIO
  from pygments.lexers import PythonLexer
  from pygments.formatters import HtmlFormatter, NullFormatter
  from pygments.formatters.html import escape_html
  
  import support
  
  TESTFILE, TESTDIR = support.location(__file__)
  
  with io.open(TESTFILE, encoding='utf-8') as fp:
      tokensource = list(PythonLexer().get_tokens(fp.read()))
  
  
  class HtmlFormatterTest(unittest.TestCase):
      def test_correct_output(self):
          hfmt = HtmlFormatter(nowrap=True)
          houtfile = StringIO()
          hfmt.format(tokensource, houtfile)
  
          nfmt = NullFormatter()
          noutfile = StringIO()
          nfmt.format(tokensource, noutfile)
  
          stripped_html = re.sub('<.*?>', '', houtfile.getvalue())
          escaped_text = escape_html(noutfile.getvalue())
          self.assertEqual(stripped_html, escaped_text)
  
      def test_external_css(self):
          # test correct behavior
          # CSS should be in /tmp directory
          fmt1 = HtmlFormatter(full=True, cssfile='fmt1.css', outencoding='utf-8')
          # CSS should be in TESTDIR (TESTDIR is absolute)
          fmt2 = HtmlFormatter(full=True, cssfile=join(TESTDIR, 'fmt2.css'),
                               outencoding='utf-8')
          tfile = tempfile.NamedTemporaryFile(suffix='.html')
          fmt1.format(tokensource, tfile)
          try:
              fmt2.format(tokensource, tfile)
              self.assertTrue(isfile(join(TESTDIR, 'fmt2.css')))
          except IOError:
              # test directory not writable
              pass
          tfile.close()
  
          self.assertTrue(isfile(join(dirname(tfile.name), 'fmt1.css')))
          os.unlink(join(dirname(tfile.name), 'fmt1.css'))
          try:
              os.unlink(join(TESTDIR, 'fmt2.css'))
          except OSError:
              pass
  
      def test_all_options(self):
          def check(optdict):
              outfile = StringIO()
              fmt = HtmlFormatter(**optdict)
              fmt.format(tokensource, outfile)
  
          for optdict in [
              dict(nowrap=True),
              dict(linenos=True, full=True),
              dict(linenos=True, linespans='L'),
              dict(hl_lines=[1, 5, 10, 'xxx']),
              dict(hl_lines=[1, 5, 10], noclasses=True),
          ]:
              check(optdict)
  
          for linenos in [False, 'table', 'inline']:
              for noclasses in [False, True]:
                  for linenospecial in [0, 5]:
                      for anchorlinenos in [False, True]:
                          optdict = dict(
                              linenos=linenos,
                              noclasses=noclasses,
                              linenospecial=linenospecial,
                              anchorlinenos=anchorlinenos,
                          )
                          check(optdict)
  
      def test_linenos(self):
          optdict = dict(linenos=True)
          outfile = StringIO()
          fmt = HtmlFormatter(**optdict)
          fmt.format(tokensource, outfile)
          html = outfile.getvalue()
          self.assertTrue(re.search("<pre>\s+1\s+2\s+3", html))
  
      def test_linenos_with_startnum(self):
          optdict = dict(linenos=True, linenostart=5)
          outfile = StringIO()
          fmt = HtmlFormatter(**optdict)
          fmt.format(tokensource, outfile)
          html = outfile.getvalue()
          self.assertTrue(re.search("<pre>\s+5\s+6\s+7", html))
  
      def test_lineanchors(self):
          optdict = dict(lineanchors="foo")
          outfile = StringIO()
          fmt = HtmlFormatter(**optdict)
          fmt.format(tokensource, outfile)
          html = outfile.getvalue()
          self.assertTrue(re.search("<pre><a name=\"foo-1\">", html))
  
      def test_lineanchors_with_startnum(self):
          optdict = dict(lineanchors="foo", linenostart=5)
          outfile = StringIO()
          fmt = HtmlFormatter(**optdict)
          fmt.format(tokensource, outfile)
          html = outfile.getvalue()
          self.assertTrue(re.search("<pre><a name=\"foo-5\">", html))
  
      def test_valid_output(self):
          # test all available wrappers
          fmt = HtmlFormatter(full=True, linenos=True, noclasses=True,
                              outencoding='utf-8')
  
          handle, pathname = tempfile.mkstemp('.html')
          tfile = os.fdopen(handle, 'w+b')
          fmt.format(tokensource, tfile)
          tfile.close()
          catname = os.path.join(TESTDIR, 'dtds', 'HTML4.soc')
          try:
              import subprocess
              po = subprocess.Popen(['nsgmls', '-s', '-c', catname, pathname],
                                    stdout=subprocess.PIPE)
              ret = po.wait()
              output = po.stdout.read()
              po.stdout.close()
          except OSError:
              # nsgmls not available
              pass
          else:
              if ret:
                  print(output)
              self.assertFalse(ret, 'nsgmls run reported errors')
  
          os.unlink(pathname)
  
      def test_get_style_defs(self):
          fmt = HtmlFormatter()
          sd = fmt.get_style_defs()
          self.assertTrue(sd.startswith('.'))
  
          fmt = HtmlFormatter(cssclass='foo')
          sd = fmt.get_style_defs()
          self.assertTrue(sd.startswith('.foo'))
          sd = fmt.get_style_defs('.bar')
          self.assertTrue(sd.startswith('.bar'))
          sd = fmt.get_style_defs(['.bar', '.baz'])
          fl = sd.splitlines()[0]
          self.assertTrue('.bar' in fl and '.baz' in fl)
  
      def test_unicode_options(self):
          fmt = HtmlFormatter(title=u'Föö',
                              cssclass=u'bär',
                              cssstyles=u'div:before { content: \'bäz\' }',
                              encoding='utf-8')
          handle, pathname = tempfile.mkstemp('.html')
          tfile = os.fdopen(handle, 'w+b')
          fmt.format(tokensource, tfile)
          tfile.close()
  
      def test_ctags(self):
          try:
              import ctags
          except ImportError:
              # we can't check without the ctags module, but at least check the exception
              self.assertRaises(RuntimeError, HtmlFormatter, tagsfile='support/tags')
          else:
              # this tagfile says that test_ctags() is on line 165, even if it isn't
              # anymore in the actual source
              fmt = HtmlFormatter(tagsfile='support/tags', lineanchors='L',
                                  tagurlformat='%(fname)s%(fext)s')
              outfile = StringIO()
              fmt.format(tokensource, outfile)
              self.assertTrue('<a href="test_html_formatter.py#L-165">test_ctags</a>'
                              in outfile.getvalue())
  
      def test_filename(self):
          optdict = dict(filename="test.py")
          outfile = StringIO()
          fmt = HtmlFormatter(**optdict)
          fmt.format(tokensource, outfile)
          html = outfile.getvalue()
          self.assertTrue(re.search("<span class=\"filename\">test.py</span><pre>", html))
  