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linux-packaging-mono/external/llvm-project/clang-tools-extra/unittests/include-fixer/FuzzySymbolIndexTests.cpp

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//===-- FuzzySymbolIndexTests.cpp - Fuzzy symbol index unit tests ---------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "FuzzySymbolIndex.h"
#include "gmock/gmock.h"
#include "llvm/Support/Regex.h"
#include "gtest/gtest.h"
using testing::ElementsAre;
using testing::Not;
namespace clang {
namespace include_fixer {
namespace {
TEST(FuzzySymbolIndexTest, Tokenize) {
EXPECT_THAT(FuzzySymbolIndex::tokenize("URLHandlerCallback"),
ElementsAre("url", "handler", "callback"));
EXPECT_THAT(FuzzySymbolIndex::tokenize("snake_case11"),
ElementsAre("snake", "case", "11"));
EXPECT_THAT(FuzzySymbolIndex::tokenize("__$42!!BOB\nbob"),
ElementsAre("42", "bob", "bob"));
}
MATCHER_P(MatchesSymbol, Identifier, "") {
llvm::Regex Pattern("^" + arg);
std::string err;
if (!Pattern.isValid(err)) {
*result_listener << "invalid regex: " << err;
return false;
}
auto Tokens = FuzzySymbolIndex::tokenize(Identifier);
std::string Target = llvm::join(Tokens.begin(), Tokens.end(), " ");
*result_listener << "matching against '" << Target << "'";
return llvm::Regex("^" + arg).match(Target);
}
TEST(FuzzySymbolIndexTest, QueryRegexp) {
auto QueryRegexp = [](const std::string &query) {
return FuzzySymbolIndex::queryRegexp(FuzzySymbolIndex::tokenize(query));
};
EXPECT_THAT(QueryRegexp("uhc"), MatchesSymbol("URLHandlerCallback"));
EXPECT_THAT(QueryRegexp("urhaca"), MatchesSymbol("URLHandlerCallback"));
EXPECT_THAT(QueryRegexp("uhcb"), Not(MatchesSymbol("URLHandlerCallback")))
<< "Non-prefix";
EXPECT_THAT(QueryRegexp("uc"), Not(MatchesSymbol("URLHandlerCallback")))
<< "Skip token";
EXPECT_THAT(QueryRegexp("uptr"), MatchesSymbol("unique_ptr"));
EXPECT_THAT(QueryRegexp("UniP"), MatchesSymbol("unique_ptr"));
}
} // namespace
} // namespace include_fixer
} // namespace clang