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55 lines
1.8 KiB
55 lines
1.8 KiB
# coding: utf-8
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"""Tests for the elpy.black module"""
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import unittest
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import os
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from elpy import blackutil
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from elpy.rpc import Fault
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from elpy.tests.support import BackendTestCase
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@unittest.skipIf(blackutil.BLACK_NOT_SUPPORTED,
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'black not supported for current python version')
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class BLACKTestCase(BackendTestCase):
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def setUp(self):
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if blackutil.BLACK_NOT_SUPPORTED:
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raise unittest.SkipTest
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def test_fix_code_should_throw_error_for_invalid_code(self):
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src = 'x = '
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self.assertRaises(Fault, blackutil.fix_code, src, os.getcwd())
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def test_fix_code(self):
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testdata = [
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('x= 123\n', 'x = 123\n'),
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('x=1; \ny=2 \n', 'x = 1\ny = 2\n'),
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]
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for src, expected in testdata:
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self._assert_format(src, expected)
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def test_perfect_code(self):
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testdata = [
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('x = 123\n', 'x = 123\n'),
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('x = 1\ny = 2\n', 'x = 1\ny = 2\n'),
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]
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for src, expected in testdata:
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self._assert_format(src, expected)
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def _assert_format(self, src, expected):
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new_block = blackutil.fix_code(src, os.getcwd())
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self.assertEqual(new_block, expected)
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def test_should_read_options_from_pyproject_toml(self):
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with open('pyproject.toml', 'w') as f:
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f.write('[tool.black]\nline-length = 10')
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self.addCleanup(os.remove, 'pyproject.toml')
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testdata = [('x= 123\n', 'x = 123\n'),
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('x=1; \ny=2 \n', 'x = 1\ny = 2\n'),
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('x, y, z, a, b, c = 123, 124, 125, 126, 127, 128',
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'x, y, z, a, b, c = (\n 123,\n 124,\n 125,'
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'\n 126,\n 127,\n 128,\n)\n')]
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for src, expected in testdata:
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self._assert_format(src, expected)
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