| /* |
| * 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/grammar/analyzer.h" |
| |
| #include "utils/grammar/testing/utils.h" |
| #include "utils/grammar/types.h" |
| #include "utils/grammar/utils/rules.h" |
| #include "utils/utf8/unicodetext.h" |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| |
| namespace libtextclassifier3::grammar { |
| namespace { |
| |
| using ::testing::SizeIs; |
| |
| class AnalyzerTest : public GrammarTest {}; |
| |
| TEST_F(AnalyzerTest, ParsesTextWithGrammar) { |
| RulesSetT model; |
| |
| // Add semantic values schema. |
| model.semantic_values_schema.assign(semantic_values_schema_.buffer().begin(), |
| semantic_values_schema_.buffer().end()); |
| |
| // Define rules and semantics. |
| Rules rules; |
| rules.Add("<month>", {"january"}, |
| static_cast<CallbackId>(DefaultCallback::kSemanticExpression), |
| /*callback_param=*/model.semantic_expression.size()); |
| model.semantic_expression.push_back(CreatePrimitiveConstExpression(1)); |
| |
| rules.Add("<month>", {"february"}, |
| static_cast<CallbackId>(DefaultCallback::kSemanticExpression), |
| /*callback_param=*/model.semantic_expression.size()); |
| model.semantic_expression.push_back(CreatePrimitiveConstExpression(2)); |
| |
| const int kMonth = 0; |
| rules.Add("<month_rule>", {"<month>"}, |
| static_cast<CallbackId>(DefaultCallback::kRootRule), kMonth); |
| rules.Finalize().Serialize(/*include_debug_information=*/false, &model); |
| const std::string model_buffer = PackFlatbuffer<RulesSet>(&model); |
| |
| Analyzer analyzer(unilib_.get(), |
| flatbuffers::GetRoot<RulesSet>(model_buffer.data())); |
| |
| { |
| auto maybe_results = analyzer.Parse( |
| UTF8ToUnicodeText("The month is January 2020", /*do_copy=*/false), |
| /*locales=*/{}, &arena_); |
| EXPECT_TRUE(maybe_results.ok()); |
| |
| const std::vector<EvaluatedDerivation> results = maybe_results.ValueOrDie(); |
| EXPECT_THAT(results, SizeIs(1)); |
| |
| // Check parse tree. |
| EXPECT_THAT( |
| results[0].derivation, |
| IsDerivation(kMonth /* rule_id */, 13 /* begin */, 20 /* end */)); |
| |
| // Check semantic result. |
| EXPECT_EQ(results[0].value->Value<int32>(), 1); |
| } |
| |
| { |
| auto maybe_results = |
| analyzer.Parse(UTF8ToUnicodeText("february", /*do_copy=*/false), |
| /*locales=*/{}, &arena_); |
| EXPECT_TRUE(maybe_results.ok()); |
| |
| const std::vector<EvaluatedDerivation> results = maybe_results.ValueOrDie(); |
| EXPECT_THAT(results, SizeIs(1)); |
| |
| // Check parse tree. |
| EXPECT_THAT(results[0].derivation, |
| IsDerivation(kMonth /* rule_id */, 0 /* begin */, 8 /* end */)); |
| |
| // Check semantic result. |
| EXPECT_EQ(results[0].value->Value<int32>(), 2); |
| } |
| } |
| |
| } // namespace |
| } // namespace libtextclassifier3::grammar |