0ef88538c6
Summary: * Consolidate use of std::regex for testing to testharness.cc, to minimize Facebook linters constantly flagging uses in non-production code. * Improve syntax and error messages for asserting some string matches a regex in tests. * Add a public Regex wrapper class to encapsulate existing usage in ObjectRegistry. * Remove unnecessary include <regex> * Put warnings that use of Regex in production code could cause bad performance or stack overflow. Intended follow-up work: * Replace std::regex with another underlying implementation like RE2 * Improve ObjectRegistry interface in terms of possibly confusing literal string matching vs. regex and in terms of reporting invalid regex. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8740 Test Plan: tests updated, basic unit test for public Regex, and some manual testing of temporary changes to see example error messages: utilities/backupable/backupable_db_test.cc:917: Failure 000010_1162373755_138626.blob (child.name) does not match regex [0-9]+_[0-9]+_[0-9]+[.]blobHAHAHA (pattern) db/db_basic_test.cc:74: Failure R3SHSBA8C4U0CIMV2ZB0 (sid3) does not match regex [0-9A-Z]{20}HAHAHA Reviewed By: mrambacher Differential Revision: D30706246 Pulled By: pdillinger fbshipit-source-id: ba845e8f563ccad39bdb58f44f04e9da8f78c3fd
111 lines
3.4 KiB
C++
111 lines
3.4 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "test_util/testharness.h"
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#include <regex>
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#include <string>
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#include <thread>
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namespace ROCKSDB_NAMESPACE {
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namespace test {
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#ifdef OS_WIN
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#include <windows.h>
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std::string GetPidStr() { return std::to_string(GetCurrentProcessId()); }
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#else
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std::string GetPidStr() { return std::to_string(getpid()); }
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#endif
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::testing::AssertionResult AssertStatus(const char* s_expr, const Status& s) {
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if (s.ok()) {
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return ::testing::AssertionSuccess();
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} else {
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return ::testing::AssertionFailure() << s_expr << std::endl
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<< s.ToString();
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}
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}
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std::string TmpDir(Env* env) {
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std::string dir;
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Status s = env->GetTestDirectory(&dir);
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EXPECT_OK(s);
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return dir;
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}
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std::string PerThreadDBPath(std::string dir, std::string name) {
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size_t tid = std::hash<std::thread::id>()(std::this_thread::get_id());
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return dir + "/" + name + "_" + GetPidStr() + "_" + std::to_string(tid);
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}
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std::string PerThreadDBPath(std::string name) {
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return PerThreadDBPath(test::TmpDir(), name);
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}
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std::string PerThreadDBPath(Env* env, std::string name) {
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return PerThreadDBPath(test::TmpDir(env), name);
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}
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int RandomSeed() {
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const char* env = getenv("TEST_RANDOM_SEED");
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int result = (env != nullptr ? atoi(env) : 301);
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if (result <= 0) {
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result = 301;
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}
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return result;
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}
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TestRegex::TestRegex(const std::string& pattern)
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: impl_(std::make_shared<Impl>(pattern)), pattern_(pattern) {}
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TestRegex::TestRegex(const char* pattern)
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: impl_(std::make_shared<Impl>(pattern)), pattern_(pattern) {}
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const std::string& TestRegex::GetPattern() const { return pattern_; }
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// Sorry about code duplication with regex.cc, but it doesn't support LITE
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// due to exception handling
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class TestRegex::Impl : public std::regex {
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public:
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using std::regex::basic_regex;
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};
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bool TestRegex::Matches(const std::string& str) const {
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if (impl_) {
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return std::regex_match(str, *impl_);
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} else {
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// Should not call Matches on unset Regex
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assert(false);
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return false;
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}
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}
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::testing::AssertionResult AssertMatchesRegex(const char* str_expr,
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const char* pattern_expr,
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const std::string& str,
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const TestRegex& pattern) {
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if (pattern.Matches(str)) {
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return ::testing::AssertionSuccess();
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} else if (TestRegex("\".*\"").Matches(pattern_expr)) {
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// constant regex string
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return ::testing::AssertionFailure()
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<< str << " (" << str_expr << ")" << std::endl
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<< "does not match regex " << pattern.GetPattern();
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} else {
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// runtime regex string
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return ::testing::AssertionFailure()
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<< str << " (" << str_expr << ")" << std::endl
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<< "does not match regex" << std::endl
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<< pattern.GetPattern() << " (" << pattern_expr << ")";
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}
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}
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} // namespace test
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} // namespace ROCKSDB_NAMESPACE
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