content: # 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 yapf_third_party._ylib2to3 import pytree
  from yapf_third_party._ylib2to3.pgen2 import token
  
  from yapf.pytree import split_penalty
  from yapf.yapflib import format_token
  from yapf.yapflib import logical_line
  
  from yapftests import yapf_test_helper
  
  
  class LogicalLineBasicTest(yapf_test_helper.YAPFTest):
  
    def testConstruction(self):
      toks = _MakeFormatTokenList([(token.DOT, '.', 'DOT'),
                                   (token.VBAR, '|', '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, '.', 'DOT'),
                                   (token.LPAR, '(', 'LPAR'),
                                   (token.VBAR, '|', '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, '.', 'DOT'),
                                   (token.LPAR, '(', 'LPAR'),
                                   (token.VBAR, '|', 'VBAR')])
      lline = logical_line.LogicalLine(2, toks)
      self.assertEqual('    . ( |', lline.AsCode())
  
    def testAppendToken(self):
      lline = logical_line.LogicalLine(0)
      lline.AppendToken(_MakeFormatTokenLeaf(token.LPAR, '(', 'LPAR'))
      lline.AppendToken(_MakeFormatTokenLeaf(token.RPAR, ')', 'RPAR'))
      self.assertEqual(['LPAR', 'RPAR'], [tok.name for tok in lline.tokens])
  
  
  class LogicalLineFormattingInformationTest(yapf_test_helper.YAPFTest):
  
    def testFuncDef(self):
      code = textwrap.dedent("""\
          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, name):
    return format_token.FormatToken(pytree.Leaf(token_type, token_value), name)
  
  
  def _MakeFormatTokenList(token_type_values):
    return [
        _MakeFormatTokenLeaf(token_type, token_value, token_name)
        for token_type, token_value, token_name in token_type_values
    ]
  
  
  if __name__ == '__main__':
    unittest.main()
  