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# -*- coding: utf-8 -*-
"""
Pygments tests with example files
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:copyright: 2006-2008 by Georg Brandl.
:license: BSD, see LICENSE for more details.
"""
import os
import unittest
from pygments import highlight
from pygments.lexers import get_lexer_for_filename, get_lexer_by_name
from pygments.token import Error
from pygments.util import ClassNotFound
# generate methods
def test_example_files():
testdir = os.path.dirname(__file__)
for fn in os.listdir(os.path.join(testdir, 'examplefiles')):
absfn = os.path.join(testdir, 'examplefiles', fn)
if not os.path.isfile(absfn):
continue
try:
lx = get_lexer_for_filename(absfn)
except ClassNotFound:
if "_" not in fn:
raise AssertionError('file %r has no registered extension, '
'nor is of the form <lexer>_filename '
'for overriding, thus no lexer found.'
% fn)
try:
name, rest = fn.split("_", 1)
lx = get_lexer_by_name(name)
except ClassNotFound:
raise AssertionError('no lexer found for file %r' % fn)
yield check_lexer, lx, absfn
def check_lexer(lx, absfn):
text = open(absfn, 'U').read()
text = text.strip('\n') + '\n'
try:
text = text.decode('utf-8')
except UnicodeError:
text = text.decode('latin1')
ntext = []
for type, val in lx.get_tokens(text):
ntext.append(val)
assert type != Error, 'lexer %s generated error token for %s' % \
(lx, absfn)
if u''.join(ntext) != text:
raise AssertionError('round trip failed for ' + absfn)
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