text: # 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.line_joiner."""
  
  import textwrap
  import unittest
  
  from yapf.yapflib import line_joiner
  from yapf.yapflib import style
  
  from yapftests import yapf_test_helper
  
  
  class LineJoinerTest(yapf_test_helper.YAPFTest):
  
    @classmethod
    def setUpClass(cls):
      style.SetGlobalStyle(style.CreatePEP8Style())
  
    def _CheckLineJoining(self, code, join_lines):
      """Check that the given LogicalLines are joined as expected.
  
      Arguments:
        code: The code to check to see if we can join it.
        join_lines: True if we expect the lines to be joined.
      """
      llines = yapf_test_helper.ParseAndUnwrap(code)
      self.assertCodeEqual(line_joiner.CanMergeMultipleLines(llines), join_lines)
  
    def testSimpleSingleLineStatement(self):
      code = textwrap.dedent(u"""\
          if isinstance(a, int): continue
          """)
      self._CheckLineJoining(code, join_lines=True)
  
    def testSimpleMultipleLineStatement(self):
      code = textwrap.dedent(u"""\
          if isinstance(b, int):
              continue
          """)
      self._CheckLineJoining(code, join_lines=False)
  
    def testSimpleMultipleLineComplexStatement(self):
      code = textwrap.dedent(u"""\
          if isinstance(c, int):
              while True:
                  continue
          """)
      self._CheckLineJoining(code, join_lines=False)
  
    def testSimpleMultipleLineStatementWithComment(self):
      code = textwrap.dedent(u"""\
          if isinstance(d, int): continue  # We're pleased that d's an int.
          """)
      self._CheckLineJoining(code, join_lines=True)
  
    def testSimpleMultipleLineStatementWithLargeIndent(self):
      code = textwrap.dedent(u"""\
          if isinstance(e, int):    continue
          """)
      self._CheckLineJoining(code, join_lines=True)
  
    def testOverColumnLimit(self):
      code = textwrap.dedent(u"""\
          if instance(bbbbbbbbbbbbbbbbbbbbbbbbb, int): cccccccccccccccccccccccccc = ddddddddddddddddddddd
          """)  # noqa
      self._CheckLineJoining(code, join_lines=False)
  
  
  if __name__ == '__main__':
    unittest.main()
  