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# ===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
# ===----------------------------------------------------------------------===##
import unittest
import filecheck_lint as fcl
class TestParser(unittest.TestCase):
def test_parse_all_additional_prefixes(self):
def run(content, expected_prefixes):
prefixes = set(fcl.parse_custom_prefixes(content))
for prefix in expected_prefixes:
self.assertIn(prefix, prefixes)
for content, expected_prefixes in [
('-check-prefix=PREFIX', {'PREFIX'}),
('-check-prefix=\'PREFIX\'', {'PREFIX'}),
('-check-prefix="PREFIX"', {'PREFIX'}),
('-check-prefix PREFIX', {'PREFIX'}),
('-check-prefix PREFIX', {'PREFIX'}),
('-check-prefixes=PREFIX1,PREFIX2', {'PREFIX1', 'PREFIX2'}),
('-check-prefixes PREFIX1,PREFIX2', {'PREFIX1', 'PREFIX2'}),
(
"""-check-prefix=PREFIX1 -check-prefix PREFIX2
-check-prefixes=PREFIX3,PREFIX4 -check-prefix=PREFIX5
-check-prefixes PREFIX6,PREFIX7 -check-prefixes=PREFIX8',
""", # pylint: disable=bad-continuation
{f'PREFIX{i}' for i in range(1, 9)}),
]:
run(content, expected_prefixes)
def test_additional_prefixes_uniquely(self):
lines = ['--check-prefix=SOME-PREFIX', '--check-prefix=SOME-PREFIX']
prefixes = set(fcl.parse_custom_prefixes('\n'.join(lines)))
assert len(prefixes) == 1
class TestTypoDetection(unittest.TestCase):
def test_find_potential_directives_comment_prefix(self):
lines = ['junk; CHCK1:', 'junk// CHCK2:', 'SOME CHCK3:']
content = '\n'.join(lines)
results = list(fcl.find_potential_directives(content))
assert len(results) == 3
pos, match = results[0]
assert (pos.line == 1 and
pos.start_column == len('junk; ') + 1 and
pos.end_column == len(lines[0]) - 1)
assert match == 'CHCK1'
pos, match = results[1]
assert (pos.line == 2 and
pos.start_column == len('junk// ') + 1 and
pos.end_column == len(lines[1]) - 1)
assert match == 'CHCK2'
pos, match = results[2]
assert (pos.line == 3 and
pos.start_column == 1 and
pos.end_column == len(lines[2]) - 1)
assert match == 'SOME CHCK3'
def test_levenshtein(self):
for s1, s2, distance in [
('Levenshtein', 'Levenstin', 2), # 2 insertions
('Levenshtein', 'Levenstherin', 3), # 1 insertion, 2 deletions
('Levenshtein', 'Lenvinshtein', 2), # 1 deletion, 1 substitution
('Levenshtein', 'Levenshtein', 0), # identical strings
]:
assert fcl.levenshtein(s1, s2) == distance
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