djavu-asus/emacs/elpa/elpy-20230803.1455/elpy/tests/test_yapf.py

   1 # coding: utf-8
   2 """Tests for the elpy.yapf module"""
   3
   4 import unittest
   5 import os
   6
   7 from elpy import yapfutil
   8 from elpy.rpc import Fault
   9 from elpy.tests.support import BackendTestCase
  10
  11
  12 @unittest.skipIf(yapfutil.YAPF_NOT_SUPPORTED,
  13                  'yapf not supported for current python version')
  14 class YAPFTestCase(BackendTestCase):
  15     def setUp(self):
  16         if yapfutil.YAPF_NOT_SUPPORTED:
  17             raise unittest.SkipTest
  18
  19     def test_fix_code_should_throw_error_for_invalid_code(self):
  20         src = 'x = '
  21         self.assertRaises(Fault, yapfutil.fix_code, src, os.getcwd())
  22
  23     def test_fix_code_should_throw_error_without_yapf_installed(self):
  24         yapf = yapfutil.yapf_api
  25         yapfutil.yapf_api = None
  26         src = 'x=       123\n', 'x = 123\n'
  27         with self.assertRaises(Fault):
  28             yapfutil.fix_code(src, os.getcwd())
  29         yapfutil.yapf_api = yapf
  30
  31     def test_fix_code(self):
  32         testdata = [
  33             ('x=       123\n', 'x = 123\n'),
  34             ('x=1; \ny=2 \n', 'x = 1\ny = 2\n'),
  35         ]
  36         for src, expected in testdata:
  37             self._assert_format(src, expected)
  38
  39     def _assert_format(self, src, expected):
  40         new_block = yapfutil.fix_code(src, os.getcwd())
  41         self.assertEqual(new_block, expected)