120 lines
4.2 KiB
Python
120 lines
4.2 KiB
Python
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# coding=utf-8
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"""Tests for augment.rename."""
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# Copyright 2017 Google LLC
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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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# https://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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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import ast
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import unittest
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from pasta.augment import rename
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from pasta.base import scope
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from pasta.base import test_utils
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class RenameTest(test_utils.TestCase):
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def test_rename_external_in_import(self):
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src = 'import aaa.bbb.ccc\naaa.bbb.ccc.foo()'
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('import xxx.yyy.ccc\nxxx.yyy.ccc.foo()'))
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb.ccc', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('import xxx.yyy\nxxx.yyy.foo()'))
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t = ast.parse(src)
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self.assertFalse(rename.rename_external(t, 'bbb', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse(src))
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def test_rename_external_in_import_with_asname(self):
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src = 'import aaa.bbb.ccc as ddd\nddd.foo()'
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('import xxx.yyy.ccc as ddd\nddd.foo()'))
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def test_rename_external_in_import_multiple_aliases(self):
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src = 'import aaa, aaa.bbb, aaa.bbb.ccc'
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('import aaa, xxx.yyy, xxx.yyy.ccc'))
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def test_rename_external_in_importfrom(self):
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src = 'from aaa.bbb.ccc import ddd\nddd.foo()'
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('from xxx.yyy.ccc import ddd\nddd.foo()'))
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb.ccc', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('from xxx.yyy import ddd\nddd.foo()'))
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t = ast.parse(src)
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self.assertFalse(rename.rename_external(t, 'bbb', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse(src))
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def test_rename_external_in_importfrom_alias(self):
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src = 'from aaa.bbb import ccc\nccc.foo()'
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb.ccc', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('from xxx import yyy\nyyy.foo()'))
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def test_rename_external_in_importfrom_alias_with_asname(self):
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src = 'from aaa.bbb import ccc as abc\nabc.foo()'
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t = ast.parse(src)
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self.assertTrue(rename.rename_external(t, 'aaa.bbb.ccc', 'xxx.yyy'))
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self.checkAstsEqual(t, ast.parse('from xxx import yyy as abc\nabc.foo()'))
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def test_rename_reads_name(self):
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src = 'aaa.bbb()'
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t = ast.parse(src)
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sc = scope.analyze(t)
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self.assertTrue(rename._rename_reads(sc, t, 'aaa', 'xxx'))
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self.checkAstsEqual(t, ast.parse('xxx.bbb()'))
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def test_rename_reads_name_as_attribute(self):
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src = 'aaa.bbb()'
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t = ast.parse(src)
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sc = scope.analyze(t)
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rename._rename_reads(sc, t, 'aaa', 'xxx.yyy')
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self.checkAstsEqual(t, ast.parse('xxx.yyy.bbb()'))
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def test_rename_reads_attribute(self):
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src = 'aaa.bbb.ccc()'
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t = ast.parse(src)
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sc = scope.analyze(t)
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rename._rename_reads(sc, t, 'aaa.bbb', 'xxx.yyy')
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self.checkAstsEqual(t, ast.parse('xxx.yyy.ccc()'))
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def test_rename_reads_noop(self):
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src = 'aaa.bbb.ccc()'
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t = ast.parse(src)
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sc = scope.analyze(t)
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rename._rename_reads(sc, t, 'aaa.bbb.ccc.ddd', 'xxx.yyy')
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rename._rename_reads(sc, t, 'bbb.aaa', 'xxx.yyy')
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self.checkAstsEqual(t, ast.parse(src))
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def suite():
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result = unittest.TestSuite()
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result.addTests(unittest.makeSuite(RenameTest))
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return result
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if __name__ == '__main__':
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unittest.main()
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