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818 lines
21 KiB
Python
818 lines
21 KiB
Python
# Argument Clinic
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# Copyright 2012-2013 by Larry Hastings.
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# Licensed to the PSF under a contributor agreement.
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from test import support
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from unittest import TestCase
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import collections
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import inspect
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import os.path
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import sys
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import unittest
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clinic_path = os.path.join(os.path.dirname(__file__), '..', '..', 'Tools', 'clinic')
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clinic_path = os.path.normpath(clinic_path)
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if not os.path.exists(clinic_path):
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raise unittest.SkipTest(f'{clinic_path!r} path does not exist')
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sys.path.append(clinic_path)
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try:
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import clinic
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from clinic import DSLParser
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finally:
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del sys.path[-1]
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class FakeConverter:
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def __init__(self, name, args):
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self.name = name
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self.args = args
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class FakeConverterFactory:
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def __init__(self, name):
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self.name = name
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def __call__(self, name, default, **kwargs):
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return FakeConverter(self.name, kwargs)
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class FakeConvertersDict:
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def __init__(self):
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self.used_converters = {}
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def get(self, name, default):
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return self.used_converters.setdefault(name, FakeConverterFactory(name))
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c = clinic.Clinic(language='C', filename = "file")
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class FakeClinic:
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def __init__(self):
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self.converters = FakeConvertersDict()
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self.legacy_converters = FakeConvertersDict()
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self.language = clinic.CLanguage(None)
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self.filename = None
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self.destination_buffers = {}
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self.block_parser = clinic.BlockParser('', self.language)
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self.modules = collections.OrderedDict()
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self.classes = collections.OrderedDict()
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clinic.clinic = self
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self.name = "FakeClinic"
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self.line_prefix = self.line_suffix = ''
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self.destinations = {}
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self.add_destination("block", "buffer")
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self.add_destination("file", "buffer")
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self.add_destination("suppress", "suppress")
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d = self.destinations.get
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self.field_destinations = collections.OrderedDict((
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('docstring_prototype', d('suppress')),
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('docstring_definition', d('block')),
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('methoddef_define', d('block')),
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('impl_prototype', d('block')),
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('parser_prototype', d('suppress')),
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('parser_definition', d('block')),
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('impl_definition', d('block')),
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))
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def get_destination(self, name):
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d = self.destinations.get(name)
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if not d:
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sys.exit("Destination does not exist: " + repr(name))
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return d
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def add_destination(self, name, type, *args):
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if name in self.destinations:
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sys.exit("Destination already exists: " + repr(name))
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self.destinations[name] = clinic.Destination(name, type, self, *args)
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def is_directive(self, name):
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return name == "module"
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def directive(self, name, args):
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self.called_directives[name] = args
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_module_and_class = clinic.Clinic._module_and_class
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class ClinicWholeFileTest(TestCase):
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def test_eol(self):
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# regression test:
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# clinic's block parser didn't recognize
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# the "end line" for the block if it
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# didn't end in "\n" (as in, the last)
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# byte of the file was '/'.
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# so it would spit out an end line for you.
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# and since you really already had one,
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# the last line of the block got corrupted.
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c = clinic.Clinic(clinic.CLanguage(None), filename="file")
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raw = "/*[clinic]\nfoo\n[clinic]*/"
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cooked = c.parse(raw).splitlines()
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end_line = cooked[2].rstrip()
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# this test is redundant, it's just here explicitly to catch
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# the regression test so we don't forget what it looked like
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self.assertNotEqual(end_line, "[clinic]*/[clinic]*/")
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self.assertEqual(end_line, "[clinic]*/")
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class ClinicGroupPermuterTest(TestCase):
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def _test(self, l, m, r, output):
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computed = clinic.permute_optional_groups(l, m, r)
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self.assertEqual(output, computed)
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def test_range(self):
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self._test([['start']], ['stop'], [['step']],
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(
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('stop',),
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('start', 'stop',),
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('start', 'stop', 'step',),
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))
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def test_add_window(self):
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self._test([['x', 'y']], ['ch'], [['attr']],
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(
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('ch',),
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('ch', 'attr'),
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('x', 'y', 'ch',),
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('x', 'y', 'ch', 'attr'),
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))
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def test_ludicrous(self):
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self._test([['a1', 'a2', 'a3'], ['b1', 'b2']], ['c1'], [['d1', 'd2'], ['e1', 'e2', 'e3']],
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(
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('c1',),
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('b1', 'b2', 'c1'),
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('b1', 'b2', 'c1', 'd1', 'd2'),
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('a1', 'a2', 'a3', 'b1', 'b2', 'c1'),
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('a1', 'a2', 'a3', 'b1', 'b2', 'c1', 'd1', 'd2'),
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('a1', 'a2', 'a3', 'b1', 'b2', 'c1', 'd1', 'd2', 'e1', 'e2', 'e3'),
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))
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def test_right_only(self):
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self._test([], [], [['a'],['b'],['c']],
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(
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(),
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('a',),
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('a', 'b'),
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('a', 'b', 'c')
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))
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def test_have_left_options_but_required_is_empty(self):
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def fn():
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clinic.permute_optional_groups(['a'], [], [])
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self.assertRaises(AssertionError, fn)
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class ClinicLinearFormatTest(TestCase):
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def _test(self, input, output, **kwargs):
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computed = clinic.linear_format(input, **kwargs)
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self.assertEqual(output, computed)
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def test_empty_strings(self):
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self._test('', '')
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def test_solo_newline(self):
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self._test('\n', '\n')
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def test_no_substitution(self):
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self._test("""
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abc
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""", """
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abc
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""")
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def test_empty_substitution(self):
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self._test("""
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abc
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{name}
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def
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""", """
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abc
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def
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""", name='')
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def test_single_line_substitution(self):
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self._test("""
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abc
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{name}
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def
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""", """
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abc
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GARGLE
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def
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""", name='GARGLE')
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def test_multiline_substitution(self):
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self._test("""
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abc
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{name}
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def
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""", """
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abc
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bingle
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bungle
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def
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""", name='bingle\nbungle\n')
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class InertParser:
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def __init__(self, clinic):
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pass
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def parse(self, block):
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pass
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class CopyParser:
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def __init__(self, clinic):
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pass
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def parse(self, block):
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block.output = block.input
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class ClinicBlockParserTest(TestCase):
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def _test(self, input, output):
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language = clinic.CLanguage(None)
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blocks = list(clinic.BlockParser(input, language))
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writer = clinic.BlockPrinter(language)
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for block in blocks:
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writer.print_block(block)
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output = writer.f.getvalue()
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assert output == input, "output != input!\n\noutput " + repr(output) + "\n\n input " + repr(input)
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def round_trip(self, input):
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return self._test(input, input)
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def test_round_trip_1(self):
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self.round_trip("""
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verbatim text here
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lah dee dah
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""")
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def test_round_trip_2(self):
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self.round_trip("""
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verbatim text here
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lah dee dah
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/*[inert]
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abc
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[inert]*/
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def
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/*[inert checksum: 7b18d017f89f61cf17d47f92749ea6930a3f1deb]*/
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xyz
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""")
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def _test_clinic(self, input, output):
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language = clinic.CLanguage(None)
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c = clinic.Clinic(language, filename="file")
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c.parsers['inert'] = InertParser(c)
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c.parsers['copy'] = CopyParser(c)
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computed = c.parse(input)
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self.assertEqual(output, computed)
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def test_clinic_1(self):
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self._test_clinic("""
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verbatim text here
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lah dee dah
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/*[copy input]
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def
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[copy start generated code]*/
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abc
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/*[copy end generated code: output=03cfd743661f0797 input=7b18d017f89f61cf]*/
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xyz
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""", """
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verbatim text here
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lah dee dah
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/*[copy input]
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def
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[copy start generated code]*/
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def
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/*[copy end generated code: output=7b18d017f89f61cf input=7b18d017f89f61cf]*/
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xyz
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""")
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class ClinicParserTest(TestCase):
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def test_trivial(self):
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parser = DSLParser(FakeClinic())
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block = clinic.Block("module os\nos.access")
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parser.parse(block)
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module, function = block.signatures
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self.assertEqual("access", function.name)
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self.assertEqual("os", module.name)
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def test_ignore_line(self):
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block = self.parse("#\nmodule os\nos.access")
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module, function = block.signatures
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self.assertEqual("access", function.name)
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self.assertEqual("os", module.name)
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def test_param(self):
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function = self.parse_function("module os\nos.access\n path: int")
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self.assertEqual("access", function.name)
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self.assertEqual(2, len(function.parameters))
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p = function.parameters['path']
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self.assertEqual('path', p.name)
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self.assertIsInstance(p.converter, clinic.int_converter)
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def test_param_default(self):
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function = self.parse_function("module os\nos.access\n follow_symlinks: bool = True")
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p = function.parameters['follow_symlinks']
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self.assertEqual(True, p.default)
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def test_param_with_continuations(self):
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function = self.parse_function("module os\nos.access\n follow_symlinks: \\\n bool \\\n =\\\n True")
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p = function.parameters['follow_symlinks']
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self.assertEqual(True, p.default)
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def test_param_default_expression(self):
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function = self.parse_function("module os\nos.access\n follow_symlinks: int(c_default='MAXSIZE') = sys.maxsize")
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p = function.parameters['follow_symlinks']
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self.assertEqual(sys.maxsize, p.default)
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self.assertEqual("MAXSIZE", p.converter.c_default)
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s = self.parse_function_should_fail("module os\nos.access\n follow_symlinks: int = sys.maxsize")
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self.assertEqual(s, "Error on line 0:\nWhen you specify a named constant ('sys.maxsize') as your default value,\nyou MUST specify a valid c_default.\n")
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def test_param_no_docstring(self):
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function = self.parse_function("""
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module os
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os.access
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follow_symlinks: bool = True
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something_else: str = ''""")
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p = function.parameters['follow_symlinks']
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self.assertEqual(3, len(function.parameters))
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self.assertIsInstance(function.parameters['something_else'].converter, clinic.str_converter)
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def test_param_default_parameters_out_of_order(self):
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s = self.parse_function_should_fail("""
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module os
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os.access
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follow_symlinks: bool = True
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something_else: str""")
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self.assertEqual(s, """Error on line 0:
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Can't have a parameter without a default ('something_else')
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after a parameter with a default!
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""")
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def disabled_test_converter_arguments(self):
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function = self.parse_function("module os\nos.access\n path: path_t(allow_fd=1)")
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p = function.parameters['path']
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self.assertEqual(1, p.converter.args['allow_fd'])
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def test_function_docstring(self):
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function = self.parse_function("""
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module os
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os.stat as os_stat_fn
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path: str
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Path to be examined
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Perform a stat system call on the given path.""")
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self.assertEqual("""
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stat($module, /, path)
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--
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Perform a stat system call on the given path.
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path
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Path to be examined
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""".strip(), function.docstring)
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def test_explicit_parameters_in_docstring(self):
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function = self.parse_function("""
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module foo
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foo.bar
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x: int
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Documentation for x.
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y: int
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This is the documentation for foo.
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Okay, we're done here.
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""")
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self.assertEqual("""
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bar($module, /, x, y)
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--
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This is the documentation for foo.
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x
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Documentation for x.
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Okay, we're done here.
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""".strip(), function.docstring)
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def test_parser_regression_special_character_in_parameter_column_of_docstring_first_line(self):
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function = self.parse_function("""
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module os
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os.stat
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path: str
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This/used to break Clinic!
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""")
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self.assertEqual("stat($module, /, path)\n--\n\nThis/used to break Clinic!", function.docstring)
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def test_c_name(self):
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function = self.parse_function("module os\nos.stat as os_stat_fn")
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self.assertEqual("os_stat_fn", function.c_basename)
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def test_return_converter(self):
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function = self.parse_function("module os\nos.stat -> int")
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self.assertIsInstance(function.return_converter, clinic.int_return_converter)
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def test_star(self):
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function = self.parse_function("module os\nos.access\n *\n follow_symlinks: bool = True")
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p = function.parameters['follow_symlinks']
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self.assertEqual(inspect.Parameter.KEYWORD_ONLY, p.kind)
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self.assertEqual(0, p.group)
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def test_group(self):
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function = self.parse_function("module window\nwindow.border\n [\n ls : int\n ]\n /\n")
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p = function.parameters['ls']
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self.assertEqual(1, p.group)
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def test_left_group(self):
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function = self.parse_function("""
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module curses
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curses.addch
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[
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y: int
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Y-coordinate.
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x: int
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X-coordinate.
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]
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ch: char
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Character to add.
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[
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attr: long
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Attributes for the character.
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]
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/
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""")
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for name, group in (
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('y', -1), ('x', -1),
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('ch', 0),
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('attr', 1),
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):
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p = function.parameters[name]
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self.assertEqual(p.group, group)
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self.assertEqual(p.kind, inspect.Parameter.POSITIONAL_ONLY)
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self.assertEqual(function.docstring.strip(), """
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addch([y, x,] ch, [attr])
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y
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Y-coordinate.
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x
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X-coordinate.
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ch
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Character to add.
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attr
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Attributes for the character.
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""".strip())
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def test_nested_groups(self):
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function = self.parse_function("""
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module curses
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curses.imaginary
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[
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[
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y1: int
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Y-coordinate.
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y2: int
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Y-coordinate.
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]
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x1: int
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X-coordinate.
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x2: int
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X-coordinate.
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]
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ch: char
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Character to add.
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[
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attr1: long
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Attributes for the character.
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attr2: long
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Attributes for the character.
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attr3: long
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Attributes for the character.
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[
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attr4: long
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Attributes for the character.
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attr5: long
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Attributes for the character.
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attr6: long
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Attributes for the character.
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]
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]
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/
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""")
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for name, group in (
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('y1', -2), ('y2', -2),
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('x1', -1), ('x2', -1),
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('ch', 0),
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('attr1', 1), ('attr2', 1), ('attr3', 1),
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('attr4', 2), ('attr5', 2), ('attr6', 2),
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):
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p = function.parameters[name]
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self.assertEqual(p.group, group)
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self.assertEqual(p.kind, inspect.Parameter.POSITIONAL_ONLY)
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self.assertEqual(function.docstring.strip(), """
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imaginary([[y1, y2,] x1, x2,] ch, [attr1, attr2, attr3, [attr4, attr5,
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attr6]])
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y1
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Y-coordinate.
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y2
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Y-coordinate.
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x1
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X-coordinate.
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x2
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X-coordinate.
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ch
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Character to add.
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attr1
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Attributes for the character.
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attr2
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Attributes for the character.
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attr3
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Attributes for the character.
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attr4
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Attributes for the character.
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attr5
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Attributes for the character.
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attr6
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Attributes for the character.
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""".strip())
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def parse_function_should_fail(self, s):
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with support.captured_stdout() as stdout:
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with self.assertRaises(SystemExit):
|
|
self.parse_function(s)
|
|
return stdout.getvalue()
|
|
|
|
def test_disallowed_grouping__two_top_groups_on_left(self):
|
|
s = self.parse_function_should_fail("""
|
|
module foo
|
|
foo.two_top_groups_on_left
|
|
[
|
|
group1 : int
|
|
]
|
|
[
|
|
group2 : int
|
|
]
|
|
param: int
|
|
""")
|
|
self.assertEqual(s,
|
|
('Error on line 0:\n'
|
|
'Function two_top_groups_on_left has an unsupported group configuration. (Unexpected state 2.b)\n'))
|
|
|
|
def test_disallowed_grouping__two_top_groups_on_right(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.two_top_groups_on_right
|
|
param: int
|
|
[
|
|
group1 : int
|
|
]
|
|
[
|
|
group2 : int
|
|
]
|
|
""")
|
|
|
|
def test_disallowed_grouping__parameter_after_group_on_right(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.parameter_after_group_on_right
|
|
param: int
|
|
[
|
|
[
|
|
group1 : int
|
|
]
|
|
group2 : int
|
|
]
|
|
""")
|
|
|
|
def test_disallowed_grouping__group_after_parameter_on_left(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.group_after_parameter_on_left
|
|
[
|
|
group2 : int
|
|
[
|
|
group1 : int
|
|
]
|
|
]
|
|
param: int
|
|
""")
|
|
|
|
def test_disallowed_grouping__empty_group_on_left(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.empty_group
|
|
[
|
|
[
|
|
]
|
|
group2 : int
|
|
]
|
|
param: int
|
|
""")
|
|
|
|
def test_disallowed_grouping__empty_group_on_right(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.empty_group
|
|
param: int
|
|
[
|
|
[
|
|
]
|
|
group2 : int
|
|
]
|
|
""")
|
|
|
|
def test_no_parameters(self):
|
|
function = self.parse_function("""
|
|
module foo
|
|
foo.bar
|
|
|
|
Docstring
|
|
|
|
""")
|
|
self.assertEqual("bar($module, /)\n--\n\nDocstring", function.docstring)
|
|
self.assertEqual(1, len(function.parameters)) # self!
|
|
|
|
def test_init_with_no_parameters(self):
|
|
function = self.parse_function("""
|
|
module foo
|
|
class foo.Bar "unused" "notneeded"
|
|
foo.Bar.__init__
|
|
|
|
Docstring
|
|
|
|
""", signatures_in_block=3, function_index=2)
|
|
# self is not in the signature
|
|
self.assertEqual("Bar()\n--\n\nDocstring", function.docstring)
|
|
# but it *is* a parameter
|
|
self.assertEqual(1, len(function.parameters))
|
|
|
|
def test_illegal_module_line(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar => int
|
|
/
|
|
""")
|
|
|
|
def test_illegal_c_basename(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar as 935
|
|
/
|
|
""")
|
|
|
|
def test_single_star(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
*
|
|
*
|
|
""")
|
|
|
|
def test_parameters_required_after_star_without_initial_parameters_or_docstring(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
*
|
|
""")
|
|
|
|
def test_parameters_required_after_star_without_initial_parameters_with_docstring(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
*
|
|
Docstring here.
|
|
""")
|
|
|
|
def test_parameters_required_after_star_with_initial_parameters_without_docstring(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
this: int
|
|
*
|
|
""")
|
|
|
|
def test_parameters_required_after_star_with_initial_parameters_and_docstring(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
this: int
|
|
*
|
|
Docstring.
|
|
""")
|
|
|
|
def test_single_slash(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
/
|
|
/
|
|
""")
|
|
|
|
def test_mix_star_and_slash(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
x: int
|
|
y: int
|
|
*
|
|
z: int
|
|
/
|
|
""")
|
|
|
|
def test_parameters_not_permitted_after_slash_for_now(self):
|
|
self.parse_function_should_fail("""
|
|
module foo
|
|
foo.bar
|
|
/
|
|
x: int
|
|
""")
|
|
|
|
def test_function_not_at_column_0(self):
|
|
function = self.parse_function("""
|
|
module foo
|
|
foo.bar
|
|
x: int
|
|
Nested docstring here, goeth.
|
|
*
|
|
y: str
|
|
Not at column 0!
|
|
""")
|
|
self.assertEqual("""
|
|
bar($module, /, x, *, y)
|
|
--
|
|
|
|
Not at column 0!
|
|
|
|
x
|
|
Nested docstring here, goeth.
|
|
""".strip(), function.docstring)
|
|
|
|
def test_directive(self):
|
|
c = FakeClinic()
|
|
parser = DSLParser(c)
|
|
parser.flag = False
|
|
parser.directives['setflag'] = lambda : setattr(parser, 'flag', True)
|
|
block = clinic.Block("setflag")
|
|
parser.parse(block)
|
|
self.assertTrue(parser.flag)
|
|
|
|
def test_legacy_converters(self):
|
|
block = self.parse('module os\nos.access\n path: "s"')
|
|
module, function = block.signatures
|
|
self.assertIsInstance((function.parameters['path']).converter, clinic.str_converter)
|
|
|
|
def parse(self, text):
|
|
c = FakeClinic()
|
|
parser = DSLParser(c)
|
|
block = clinic.Block(text)
|
|
parser.parse(block)
|
|
return block
|
|
|
|
def parse_function(self, text, signatures_in_block=2, function_index=1):
|
|
block = self.parse(text)
|
|
s = block.signatures
|
|
self.assertEqual(len(s), signatures_in_block)
|
|
assert isinstance(s[0], clinic.Module)
|
|
assert isinstance(s[function_index], clinic.Function)
|
|
return s[function_index]
|
|
|
|
def test_scaffolding(self):
|
|
# test repr on special values
|
|
self.assertEqual(repr(clinic.unspecified), '<Unspecified>')
|
|
self.assertEqual(repr(clinic.NULL), '<Null>')
|
|
|
|
# test that fail fails
|
|
with support.captured_stdout() as stdout:
|
|
with self.assertRaises(SystemExit):
|
|
clinic.fail('The igloos are melting!', filename='clown.txt', line_number=69)
|
|
self.assertEqual(stdout.getvalue(), 'Error in file "clown.txt" on line 69:\nThe igloos are melting!\n')
|
|
|
|
|
|
class ClinicExternalTest(TestCase):
|
|
maxDiff = None
|
|
|
|
def test_external(self):
|
|
source = support.findfile('clinic.test')
|
|
with open(source, 'r', encoding='utf-8') as f:
|
|
original = f.read()
|
|
with support.temp_dir() as testdir:
|
|
testfile = os.path.join(testdir, 'clinic.test.c')
|
|
with open(testfile, 'w', encoding='utf-8') as f:
|
|
f.write(original)
|
|
clinic.parse_file(testfile, force=True)
|
|
with open(testfile, 'r', encoding='utf-8') as f:
|
|
result = f.read()
|
|
self.assertEqual(result, original)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|