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import os

import json

import subprocess

import semmle.path_filters

from tests import test_utils

class ExtractorPatternsTest(test_utils.ExtractorTest):

def __init__(self, name):

super(ExtractorPatternsTest, self).__init__(name)

def test(self):

repo_dir = subprocess.Popen(["git", "rev-parse", "--show-toplevel"], stdout=subprocess.PIPE).communicate()[0].rstrip().decode("utf-8")

test_file_path = os.path.abspath(os.path.join(repo_dir, "..", "unit-tests", "files", "pattern-matching", "patterns.json"))

with open(test_file_path) as test_file:

test_patterns = json.load(test_file)

for test_pattern in test_patterns:

pattern = test_pattern["pattern"]

regex = semmle.path_filters.glob_to_regex(pattern)

for matching_path in test_pattern["should_match"]:

self.assertTrue(regex.match(matching_path), "Pattern \"%s\" did not match path \"%s\"." % (pattern, matching_path))

for matching_path in test_pattern["shouldnt_match"]:

self.assertFalse(regex.match(matching_path), "Pattern \"%s\" matched path \"%s\"." % (pattern, matching_path))

def test_escape_prefix(self):

semmle.path_filters.glob_to_regex("x", prefix="foo\\")