Lukas Zilka | a6ddd4a | 2019-01-04 15:37:46 +0100 | [diff] [blame] | 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 "actions/zlib-utils.h" |
| 18 | |
| 19 | #include <memory> |
| 20 | |
| 21 | #include "actions/actions_model_generated.h" |
| 22 | #include "utils/zlib/zlib.h" |
| 23 | #include "gmock/gmock.h" |
| 24 | #include "gtest/gtest.h" |
| 25 | |
| 26 | namespace libtextclassifier3 { |
| 27 | |
| 28 | namespace { |
| 29 | |
| 30 | TEST(ZlibUtilsTest, CompressModel) { |
| 31 | ActionsModelT model; |
| 32 | constexpr char kTestPattern1[] = "this is a test pattern"; |
| 33 | constexpr char kTestPattern2[] = "this is a second test pattern"; |
| 34 | model.rules.reset(new RulesModelT); |
| 35 | model.rules->rule.emplace_back(new RulesModel_::RuleT); |
| 36 | model.rules->rule.back()->pattern = kTestPattern1; |
| 37 | model.rules->rule.emplace_back(new RulesModel_::RuleT); |
| 38 | model.rules->rule.back()->pattern = kTestPattern2; |
| 39 | |
| 40 | // Compress the model. |
| 41 | EXPECT_TRUE(CompressActionsModel(&model)); |
| 42 | |
| 43 | // Sanity check that uncompressed field is removed. |
| 44 | EXPECT_TRUE(model.rules->rule[0]->pattern.empty()); |
| 45 | EXPECT_TRUE(model.rules->rule[1]->pattern.empty()); |
| 46 | // Pack and load the model. |
| 47 | flatbuffers::FlatBufferBuilder builder; |
| 48 | FinishActionsModelBuffer(builder, ActionsModel::Pack(builder, &model)); |
| 49 | const ActionsModel* compressed_model = GetActionsModel( |
| 50 | reinterpret_cast<const char*>(builder.GetBufferPointer())); |
| 51 | ASSERT_TRUE(compressed_model != nullptr); |
| 52 | |
| 53 | // Decompress the fields again and check that they match the original. |
| 54 | std::unique_ptr<ZlibDecompressor> decompressor = ZlibDecompressor::Instance(); |
| 55 | ASSERT_TRUE(decompressor != nullptr); |
| 56 | std::string uncompressed_pattern; |
| 57 | EXPECT_TRUE(decompressor->MaybeDecompress( |
| 58 | compressed_model->rules()->rule()->Get(0)->compressed_pattern(), |
| 59 | &uncompressed_pattern)); |
| 60 | EXPECT_EQ(uncompressed_pattern, kTestPattern1); |
| 61 | EXPECT_TRUE(decompressor->MaybeDecompress( |
| 62 | compressed_model->rules()->rule()->Get(1)->compressed_pattern(), |
| 63 | &uncompressed_pattern)); |
| 64 | EXPECT_EQ(uncompressed_pattern, kTestPattern2); |
| 65 | EXPECT_TRUE(DecompressActionsModel(&model)); |
| 66 | EXPECT_EQ(model.rules->rule[0]->pattern, kTestPattern1); |
| 67 | EXPECT_EQ(model.rules->rule[1]->pattern, kTestPattern2); |
| 68 | } |
| 69 | |
| 70 | } // namespace |
| 71 | |
| 72 | } // namespace libtextclassifier3 |