# 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.unwrapped_line."""
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import textwrap
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import unittest
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from lib2to3 import pytree
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from lib2to3.pgen2 import token
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from yapf.yapflib import format_token
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from yapf.yapflib import split_penalty
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from yapf.yapflib import unwrapped_line
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from yapftests import yapf_test_helper
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class UnwrappedLineBasicTest(unittest.TestCase):
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def testConstruction(self):
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toks = _MakeFormatTokenList([(token.DOT, '.'), (token.VBAR, '|')])
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uwl = unwrapped_line.UnwrappedLine(20, toks)
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self.assertEqual(20, uwl.depth)
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self.assertEqual(['DOT', 'VBAR'], [tok.name for tok in uwl.tokens])
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def testFirstLast(self):
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toks = _MakeFormatTokenList([(token.DOT, '.'), (token.LPAR, '('),
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(token.VBAR, '|')])
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uwl = unwrapped_line.UnwrappedLine(20, toks)
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self.assertEqual(20, uwl.depth)
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self.assertEqual('DOT', uwl.first.name)
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self.assertEqual('VBAR', uwl.last.name)
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def testAsCode(self):
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toks = _MakeFormatTokenList([(token.DOT, '.'), (token.LPAR, '('),
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(token.VBAR, '|')])
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uwl = unwrapped_line.UnwrappedLine(2, toks)
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self.assertEqual(' . ( |', uwl.AsCode())
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def testAppendToken(self):
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uwl = unwrapped_line.UnwrappedLine(0)
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uwl.AppendToken(_MakeFormatTokenLeaf(token.LPAR, '('))
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uwl.AppendToken(_MakeFormatTokenLeaf(token.RPAR, ')'))
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self.assertEqual(['LPAR', 'RPAR'], [tok.name for tok in uwl.tokens])
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def testAppendNode(self):
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uwl = unwrapped_line.UnwrappedLine(0)
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uwl.AppendNode(pytree.Leaf(token.LPAR, '('))
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uwl.AppendNode(pytree.Leaf(token.RPAR, ')'))
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self.assertEqual(['LPAR', 'RPAR'], [tok.name for tok in uwl.tokens])
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class UnwrappedLineFormattingInformationTest(yapf_test_helper.YAPFTest):
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def testFuncDef(self):
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code = textwrap.dedent(r"""
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def f(a, b):
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pass
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""")
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uwlines = yapf_test_helper.ParseAndUnwrap(code)
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f = uwlines[0].tokens[1]
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self.assertFalse(f.can_break_before)
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self.assertFalse(f.must_break_before)
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self.assertEqual(f.split_penalty, split_penalty.UNBREAKABLE)
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lparen = uwlines[0].tokens[2]
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self.assertFalse(lparen.can_break_before)
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self.assertFalse(lparen.must_break_before)
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self.assertEqual(lparen.split_penalty, split_penalty.UNBREAKABLE)
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def _MakeFormatTokenLeaf(token_type, token_value):
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return format_token.FormatToken(pytree.Leaf(token_type, token_value))
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def _MakeFormatTokenList(token_type_values):
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return [
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_MakeFormatTokenLeaf(token_type, token_value)
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for token_type, token_value in token_type_values
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]
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if __name__ == '__main__':
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unittest.main()
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