1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "utils/regex-match.h" 18 19 #include <memory> 20 21 #include "utils/utf8/unilib.h" 22 #include "gmock/gmock.h" 23 #include "gtest/gtest.h" 24 25 namespace libtextclassifier3 { 26 namespace { 27 28 class LuaVerifierTest : public testing::Test { 29 protected: 30 LuaVerifierTest() : INIT_UNILIB_FOR_TESTING(unilib_) {} 31 UniLib unilib_; 32 }; 33 34 #ifdef TC3_UNILIB_ICU 35 TEST_F(LuaVerifierTest, HandlesSimpleVerification) { 36 EXPECT_TRUE(VerifyMatch(/*context=*/"", /*matcher=*/nullptr, "return true;")); 37 } 38 39 TEST_F(LuaVerifierTest, HandlesCustomVerification) { 40 UnicodeText pattern = UTF8ToUnicodeText("(\\d{16})", 41 /*do_copy=*/true); 42 UnicodeText message = UTF8ToUnicodeText("cc: 4012888888881881", 43 /*do_copy=*/true); 44 const std::string verifier = R"( 45 function luhn(candidate) 46 local sum = 0 47 local num_digits = string.len(candidate) 48 local parity = num_digits % 2 49 for pos = 1,num_digits do 50 d = tonumber(string.sub(candidate, pos, pos)) 51 if pos % 2 ~= parity then 52 d = d * 2 53 end 54 if d > 9 then 55 d = d - 9 56 end 57 sum = sum + d 58 end 59 return (sum % 10) == 0 60 end 61 return luhn(match[1].text); 62 )"; 63 auto regex_pattern = unilib_.CreateRegexPattern(pattern); 64 ASSERT_TRUE(regex_pattern != nullptr); 65 auto matcher = regex_pattern->Matcher(message); 66 ASSERT_TRUE(matcher != nullptr); 67 int status = UniLib::RegexMatcher::kNoError; 68 ASSERT_TRUE(matcher->Find(&status) && 69 status == UniLib::RegexMatcher::kNoError); 70 71 EXPECT_TRUE(VerifyMatch(message.ToUTF8String(), matcher.get(), verifier)); 72 } 73 #endif 74 75 } // namespace 76 } // namespace libtextclassifier3 77