Method test_parse

Lib/test/test_pyrepl/test_pyrepl.py:1471–1525

(self)

                self.assertEqual(completer.get_path_and_prefix(name), expected)

    def test_parse(self):
        cases = (
            ('import ', (None, '')),
            ('import foo', (None, 'foo')),
            ('import foo,', (None, '')),
            ('import foo, ', (None, '')),
            ('import foo, bar', (None, 'bar')),
            ('import foo, bar, baz', (None, 'baz')),
            ('import foo as bar,', (None, '')),
            ('import foo as bar, ', (None, '')),
            ('import foo as bar, baz', (None, 'baz')),
            ('import a.', (None, 'a.')),
            ('import a.b', (None, 'a.b')),
            ('import a.b.', (None, 'a.b.')),
            ('import a.b.c', (None, 'a.b.c')),
            ('import a.b.c, foo', (None, 'foo')),
            ('import a.b.c, foo.bar', (None, 'foo.bar')),
            ('import a.b.c, foo.bar,', (None, '')),
            ('import a.b.c, foo.bar, ', (None, '')),
            ('from foo', ('foo', None)),
            ('from a.', ('a.', None)),
            ('from a.b', ('a.b', None)),
            ('from a.b.', ('a.b.', None)),
            ('from a.b.c', ('a.b.c', None)),
            ('from foo import ', ('foo', '')),
            ('from foo import a', ('foo', 'a')),
            ('from ', ('', None)),
            ('from . import a', ('.', 'a')),
            ('from .foo import a', ('.foo', 'a')),
            ('from ..foo import a', ('..foo', 'a')),
            ('from foo import (', ('foo', '')),
            ('from foo import ( ', ('foo', '')),
            ('from foo import (a', ('foo', 'a')),
            ('from foo import (a,', ('foo', '')),
            ('from foo import (a, ', ('foo', '')),
            ('from foo import (a, c', ('foo', 'c')),
            ('from foo import (a as b, c', ('foo', 'c')),
        )
        for code, parsed in cases:
            parser = ImportParser(code)
            actual = parser.parse()
            with self.subTest(code=code):
                self.assertEqual(actual, parsed)
            # The parser should not get tripped up by any
            # other preceding statements
            _code = f'import xyz\n{code}'
            parser = ImportParser(_code)
            actual = parser.parse()
            with self.subTest(code=_code):
                self.assertEqual(actual, parsed)
            _code = f'import xyz;{code}'
            parser = ImportParser(_code)
            actual = parser.parse()
            with self.subTest(code=_code):
                self.assertEqual(actual, parsed)

    def test_parse_error(self):
        cases = (