# Copyright 2015 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests for yapf.line_joiner."""
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import textwrap
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import unittest
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from yapf.yapflib import line_joiner
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from yapf.yapflib import style
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from yapftests import yapf_test_helper
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class LineJoinerTest(yapf_test_helper.YAPFTest):
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@classmethod
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def setUpClass(cls):
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style.SetGlobalStyle(style.CreatePEP8Style())
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def _CheckLineJoining(self, code, join_lines):
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"""Check that the given UnwrappedLines are joined as expected.
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Arguments:
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code: The code to check to see if we can join it.
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join_lines: True if we expect the lines to be joined.
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"""
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uwlines = yapf_test_helper.ParseAndUnwrap(code)
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self.assertCodeEqual(line_joiner.CanMergeMultipleLines(uwlines), join_lines)
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def testSimpleSingleLineStatement(self):
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code = textwrap.dedent(u"""\
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if isinstance(a, int): continue
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""")
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self._CheckLineJoining(code, join_lines=True)
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def testSimpleMultipleLineStatement(self):
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code = textwrap.dedent(u"""\
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if isinstance(b, int):
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continue
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""")
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self._CheckLineJoining(code, join_lines=False)
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def testSimpleMultipleLineComplexStatement(self):
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code = textwrap.dedent(u"""\
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if isinstance(c, int):
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while True:
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continue
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""")
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self._CheckLineJoining(code, join_lines=False)
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def testSimpleMultipleLineStatementWithComment(self):
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code = textwrap.dedent(u"""\
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if isinstance(d, int): continue # We're pleased that d's an int.
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""")
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self._CheckLineJoining(code, join_lines=True)
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def testSimpleMultipleLineStatementWithLargeIndent(self):
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code = textwrap.dedent(u"""\
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if isinstance(e, int): continue
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""")
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self._CheckLineJoining(code, join_lines=True)
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def testOverColumnLimit(self):
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code = textwrap.dedent(u"""\
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if instance(bbbbbbbbbbbbbbbbbbbbbbbbb, int): cccccccccccccccccccccccccc = ddddddddddddddddddddd
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""")
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self._CheckLineJoining(code, join_lines=False)
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if __name__ == '__main__':
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unittest.main()
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