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# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests for yapf.logical_line."""
import textwrap
import unittest
from lib2to3 import pytree
from lib2to3.pgen2 import token
from yapf.yapflib import format_token
from yapf.yapflib import logical_line
from yapf.yapflib import split_penalty
from yapftests import yapf_test_helper
class LogicalLineBasicTest(unittest.TestCase):
def testConstruction(self):
toks = _MakeFormatTokenList([(token.DOT, '.'), (token.VBAR, '|')])
lline = logical_line.LogicalLine(20, toks)
self.assertEqual(20, lline.depth)
self.assertEqual(['DOT', 'VBAR'], [tok.name for tok in lline.tokens])
def testFirstLast(self):
toks = _MakeFormatTokenList([(token.DOT, '.'), (token.LPAR, '('),
(token.VBAR, '|')])
lline = logical_line.LogicalLine(20, toks)
self.assertEqual(20, lline.depth)
self.assertEqual('DOT', lline.first.name)
self.assertEqual('VBAR', lline.last.name)
def testAsCode(self):
toks = _MakeFormatTokenList([(token.DOT, '.'), (token.LPAR, '('),
(token.VBAR, '|')])
lline = logical_line.LogicalLine(2, toks)
self.assertEqual(' . ( |', lline.AsCode())
def testAppendToken(self):
lline = logical_line.LogicalLine(0)
lline.AppendToken(_MakeFormatTokenLeaf(token.LPAR, '('))
lline.AppendToken(_MakeFormatTokenLeaf(token.RPAR, ')'))
self.assertEqual(['LPAR', 'RPAR'], [tok.name for tok in lline.tokens])
def testAppendNode(self):
lline = logical_line.LogicalLine(0)
lline.AppendNode(pytree.Leaf(token.LPAR, '('))
lline.AppendNode(pytree.Leaf(token.RPAR, ')'))
self.assertEqual(['LPAR', 'RPAR'], [tok.name for tok in lline.tokens])
class LogicalLineFormattingInformationTest(yapf_test_helper.YAPFTest):
def testFuncDef(self):
code = textwrap.dedent(r"""
def f(a, b):
pass
""")
llines = yapf_test_helper.ParseAndUnwrap(code)
f = llines[0].tokens[1]
self.assertFalse(f.can_break_before)
self.assertFalse(f.must_break_before)
self.assertEqual(f.split_penalty, split_penalty.UNBREAKABLE)
lparen = llines[0].tokens[2]
self.assertFalse(lparen.can_break_before)
self.assertFalse(lparen.must_break_before)
self.assertEqual(lparen.split_penalty, split_penalty.UNBREAKABLE)
def _MakeFormatTokenLeaf(token_type, token_value):
return format_token.FormatToken(pytree.Leaf(token_type, token_value))
def _MakeFormatTokenList(token_type_values):
return [
_MakeFormatTokenLeaf(token_type, token_value)
for token_type, token_value in token_type_values
]
if __name__ == '__main__':
unittest.main()