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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.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 UnwrappedLines 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.
"""
uwlines = yapf_test_helper.ParseAndUnwrap(code)
self.assertCodeEqual(line_joiner.CanMergeMultipleLines(uwlines), 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
""")
self._CheckLineJoining(code, join_lines=False)
if __name__ == '__main__':
unittest.main()