def test_from_diff_multiple(self):
self.assertEqual(
matcher.MatchInfo.from_diff('metavar', 'a\nb\nc\n', '1\nb\n3\n'),
matcher.MatchInfo(
match.Match(),
bindings={
'metavar.0':
matcher.BoundValue(
match.SpanMatch(
string='a\n',
span=(0, 2),
)),
'metavar.1':
matcher.BoundValue(
match.SpanMatch(
string='c\n',
span=(4, 6),
)),
},
replacements={
'metavar.0': formatting.LiteralTemplate('1\n'),
'metavar.1': formatting.LiteralTemplate('3\n'),
},
),
)
def test_missing_template(self):
self.assertEqual(
formatting.rewrite_templates(
parsed_file.ParsedFile('abc', path='path', pragmas=()),
collections.OrderedDict([('foo', match.SpanMatch('',
(-1, -1))),
('bar', match.SpanMatch('a',
(0, 1)))]),
{
# swap foo and bar
'foo': formatting.RegexTemplate(r'bar=\g<bar>'),
'bar': formatting.RegexTemplate(r'foo=\g<foo>'),
}),
# foo is never matched, bar is replaced with foo=<non-match>,
# which is treated as ''.
{'bar': 'foo='})
def test_missing(self):
for template in [r'\1', r'\g<x>']:
with self.subTest(template=template):
with self.assertRaises(KeyError):
formatting.RegexTemplate(r'\1').substitute_match(
parsed_file.ParsedFile('', path='path', pragmas=()),
match.SpanMatch('', (0, 0)), {})
def test_string_match(self):
self.assertEqual(
formatting.rewrite_templates(
parsed_file.ParsedFile('abc', path='path', pragmas=()),
collections.OrderedDict([
('foo', match.SpanMatch('abc', (0, 3))),
('bar', match.StringMatch('xyz'))
]), {'foo': formatting.ShTemplate(r'$bar')}), {'foo': 'xyz'})
def test_named_template(self):
self.assertEqual(
formatting.rewrite_templates(
parsed_file.ParsedFile('abc', path='path', pragmas=()),
collections.OrderedDict([('foo', match.SpanMatch('b',
(1, 2)))]),
{'foo': formatting.RegexTemplate(r'x\g<foo>x')}),
{'foo': 'xbx'})
def test_from_diff_change(self):
self.assertEqual(
matcher.MatchInfo.from_diff('metavar', 'a\nb\n', 'a\nc\n'),
matcher.MatchInfo(
match.Match(),
bindings={
'metavar.0':
matcher.BoundValue(
match.SpanMatch(
string='b\n',
span=(2, 4),
))
},
replacements={'metavar.0': formatting.LiteralTemplate('c\n')},
),
)
def test_matches(self):
parsed = matcher.parse_ast('xy = 2', '<string>')
matches = list(
matcher.find_iter(
base_matchers.MatchesRegex(r'^(?P<name>.)(.)$',
base_matchers.Bind('inner')),
parsed))
# There is only one AST node of length >= 2 (which the regex requires): xy.
self.assertEqual(matches, [
matcher.MatchInfo(
mock.ANY, {
'inner': mock.ANY,
'name': matcher.BoundValue(match.SpanMatch('x', (0, 1))),
})
])
[matchinfo] = matches
self.assertEqual(matchinfo.match.span, (0, 2))
self.assertEqual(matchinfo.match, matchinfo.bindings['inner'].value)
def test_present_named(self):
self.assertEqual(
formatting.RegexTemplate(r'\g<x>').substitute_match(
parsed_file.ParsedFile('a', path='path', pragmas=()),
match.SpanMatch('', (0, 0)),
{'x': match.SpanMatch('a', (0, 1))}), 'a')
def test_extra(self):
self.assertEqual(
formatting.RegexTemplate('').substitute_match(
parsed_file.ParsedFile('b', path='path', pragmas=()),
match.SpanMatch('', (0, 0)),
{'a': match.SpanMatch('b', (0, 1))}), '')