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test_parser.py
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test_parser.py
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# Copyright (C) 2016 Adrien Vergé
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
import yaml
from yamllint.parser import (line_generator, token_or_comment_generator,
token_or_comment_or_line_generator,
Line, Token, Comment)
class ParserTestCase(unittest.TestCase):
def test_line_generator(self):
e = list(line_generator(''))
self.assertEqual(len(e), 1)
self.assertEqual(e[0].line_no, 1)
self.assertEqual(e[0].start, 0)
self.assertEqual(e[0].end, 0)
e = list(line_generator('\n'))
self.assertEqual(len(e), 2)
e = list(line_generator(' \n'))
self.assertEqual(len(e), 2)
self.assertEqual(e[0].line_no, 1)
self.assertEqual(e[0].start, 0)
self.assertEqual(e[0].end, 1)
e = list(line_generator('\n\n'))
self.assertEqual(len(e), 3)
e = list(line_generator('---\n'
'this is line 1\n'
'line 2\n'
'\n'
'3\n'))
self.assertEqual(len(e), 6)
self.assertEqual(e[0].line_no, 1)
self.assertEqual(e[0].content, '---')
self.assertEqual(e[2].content, 'line 2')
self.assertEqual(e[3].content, '')
self.assertEqual(e[5].line_no, 6)
e = list(line_generator('test with\n'
'no newline\n'
'at the end'))
self.assertEqual(len(e), 3)
self.assertEqual(e[2].line_no, 3)
self.assertEqual(e[2].content, 'at the end')
def test_token_or_comment_generator(self):
e = list(token_or_comment_generator(''))
self.assertEqual(len(e), 2)
self.assertIsNone(e[0].prev)
self.assertIsInstance(e[0].curr, yaml.Token)
self.assertIsInstance(e[0].next, yaml.Token)
self.assertEqual(e[1].prev, e[0].curr)
self.assertEqual(e[1].curr, e[0].next)
self.assertIsNone(e[1].next)
e = list(token_or_comment_generator('---\n'
'k: v\n'))
self.assertEqual(len(e), 9)
self.assertIsInstance(e[3].curr, yaml.KeyToken)
self.assertIsInstance(e[5].curr, yaml.ValueToken)
e = list(token_or_comment_generator('# start comment\n'
'- a\n'
'- key: val # key=val\n'
'# this is\n'
'# a block \n'
'# comment\n'
'- c\n'
'# end comment\n'))
self.assertEqual(len(e), 21)
self.assertIsInstance(e[1], Comment)
self.assertEqual(e[1], Comment(1, 1, '# start comment', 0))
self.assertEqual(e[11], Comment(3, 13, '# key=val', 0))
self.assertEqual(e[12], Comment(4, 1, '# this is', 0))
self.assertEqual(e[13], Comment(5, 1, '# a block ', 0))
self.assertEqual(e[14], Comment(6, 1, '# comment', 0))
self.assertEqual(e[18], Comment(8, 1, '# end comment', 0))
e = list(token_or_comment_generator('---\n'
'# no newline char'))
self.assertEqual(e[2], Comment(2, 1, '# no newline char', 0))
e = list(token_or_comment_generator('# just comment'))
self.assertEqual(e[1], Comment(1, 1, '# just comment', 0))
e = list(token_or_comment_generator('\n'
' # indented comment\n'))
self.assertEqual(e[1], Comment(2, 4, '# indented comment', 0))
e = list(token_or_comment_generator('\n'
'# trailing spaces \n'))
self.assertEqual(e[1], Comment(2, 1, '# trailing spaces ', 0))
e = [c for c in
token_or_comment_generator('# block\n'
'# comment\n'
'- data # inline comment\n'
'# block\n'
'# comment\n'
'- k: v # inline comment\n'
'- [ l, ist\n'
'] # inline comment\n'
'- { m: ap\n'
'} # inline comment\n'
'# block comment\n'
'- data # inline comment\n')
if isinstance(c, Comment)]
self.assertEqual(len(e), 10)
self.assertFalse(e[0].is_inline())
self.assertFalse(e[1].is_inline())
self.assertTrue(e[2].is_inline())
self.assertFalse(e[3].is_inline())
self.assertFalse(e[4].is_inline())
self.assertTrue(e[5].is_inline())
self.assertTrue(e[6].is_inline())
self.assertTrue(e[7].is_inline())
self.assertFalse(e[8].is_inline())
self.assertTrue(e[9].is_inline())
def test_token_or_comment_or_line_generator(self):
e = list(token_or_comment_or_line_generator('---\n'
'k: v # k=v\n'))
self.assertEqual(len(e), 13)
self.assertIsInstance(e[0], Token)
self.assertIsInstance(e[0].curr, yaml.StreamStartToken)
self.assertIsInstance(e[1], Token)
self.assertIsInstance(e[1].curr, yaml.DocumentStartToken)
self.assertIsInstance(e[2], Line)
self.assertIsInstance(e[3].curr, yaml.BlockMappingStartToken)
self.assertIsInstance(e[4].curr, yaml.KeyToken)
self.assertIsInstance(e[6].curr, yaml.ValueToken)
self.assertIsInstance(e[8], Comment)
self.assertIsInstance(e[9], Line)
self.assertIsInstance(e[12], Line)