| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "utils/regex-match.h" |
| |
| #include <memory> |
| |
| #include "utils/jvm-test-utils.h" |
| #include "utils/utf8/unicodetext.h" |
| #include "utils/utf8/unilib.h" |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| |
| namespace libtextclassifier3 { |
| namespace { |
| |
| class RegexMatchTest : public testing::Test { |
| protected: |
| RegexMatchTest() : unilib_(libtextclassifier3::CreateUniLibForTesting()) {} |
| std::unique_ptr<UniLib> unilib_; |
| }; |
| |
| #ifndef TC3_DISABLE_LUA |
| TEST_F(RegexMatchTest, HandlesSimpleVerification) { |
| EXPECT_TRUE(VerifyMatch(/*context=*/"", /*matcher=*/nullptr, "return true;")); |
| } |
| #endif // TC3_DISABLE_LUA |
| |
| #ifndef TC3_DISABLE_LUA |
| TEST_F(RegexMatchTest, HandlesCustomVerification) { |
| UnicodeText pattern = UTF8ToUnicodeText("(\\d{16})", |
| /*do_copy=*/true); |
| UnicodeText message = UTF8ToUnicodeText("cc: 4012888888881881", |
| /*do_copy=*/true); |
| const std::string verifier = R"( |
| function luhn(candidate) |
| local sum = 0 |
| local num_digits = string.len(candidate) |
| local parity = num_digits % 2 |
| for pos = 1,num_digits do |
| d = tonumber(string.sub(candidate, pos, pos)) |
| if pos % 2 ~= parity then |
| d = d * 2 |
| end |
| if d > 9 then |
| d = d - 9 |
| end |
| sum = sum + d |
| end |
| return (sum % 10) == 0 |
| end |
| return luhn(match[1].text); |
| )"; |
| const std::unique_ptr<UniLib::RegexPattern> regex_pattern = |
| unilib_->CreateRegexPattern(pattern); |
| ASSERT_TRUE(regex_pattern != nullptr); |
| const std::unique_ptr<UniLib::RegexMatcher> matcher = |
| regex_pattern->Matcher(message); |
| ASSERT_TRUE(matcher != nullptr); |
| int status = UniLib::RegexMatcher::kNoError; |
| ASSERT_TRUE(matcher->Find(&status) && |
| status == UniLib::RegexMatcher::kNoError); |
| |
| EXPECT_TRUE(VerifyMatch(message.ToUTF8String(), matcher.get(), verifier)); |
| } |
| #endif // TC3_DISABLE_LUA |
| |
| TEST_F(RegexMatchTest, RetrievesMatchGroupTest) { |
| UnicodeText pattern = |
| UTF8ToUnicodeText("never gonna (?:give (you) up|let (you) down)", |
| /*do_copy=*/true); |
| const std::unique_ptr<UniLib::RegexPattern> regex_pattern = |
| unilib_->CreateRegexPattern(pattern); |
| ASSERT_TRUE(regex_pattern != nullptr); |
| UnicodeText message = |
| UTF8ToUnicodeText("never gonna give you up - never gonna let you down"); |
| const std::unique_ptr<UniLib::RegexMatcher> matcher = |
| regex_pattern->Matcher(message); |
| ASSERT_TRUE(matcher != nullptr); |
| int status = UniLib::RegexMatcher::kNoError; |
| |
| ASSERT_TRUE(matcher->Find(&status) && |
| status == UniLib::RegexMatcher::kNoError); |
| EXPECT_THAT(GetCapturingGroupText(matcher.get(), 0).value(), |
| testing::Eq("never gonna give you up")); |
| EXPECT_THAT(GetCapturingGroupText(matcher.get(), 1).value(), |
| testing::Eq("you")); |
| EXPECT_FALSE(GetCapturingGroupText(matcher.get(), 2).has_value()); |
| |
| ASSERT_TRUE(matcher->Find(&status) && |
| status == UniLib::RegexMatcher::kNoError); |
| EXPECT_THAT(GetCapturingGroupText(matcher.get(), 0).value(), |
| testing::Eq("never gonna let you down")); |
| EXPECT_FALSE(GetCapturingGroupText(matcher.get(), 1).has_value()); |
| EXPECT_THAT(GetCapturingGroupText(matcher.get(), 2).value(), |
| testing::Eq("you")); |
| } |
| |
| } // namespace |
| } // namespace libtextclassifier3 |