| /* |
| * 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 <audio_utils/LogPlot.h> |
| |
| #include <gtest/gtest.h> |
| |
| #include <iostream> |
| #include <vector> |
| |
| TEST(audio_utils_logplot, basic) { |
| static constexpr float data[] = {-61.4, -61.7, -56.2, -54.5, -47.7, -51.1, -49.7, -47.2, |
| -47.8, -42.3, -38.9, -40.5, -39.4, -33.9, -26.3, -20.9}; |
| std::vector<std::pair<float, bool>> vdata; |
| for (size_t i = 0; i < std::size(data); ++i) { |
| vdata.emplace_back(data[i], (i + 1) % 10 == 0); |
| } |
| |
| const std::string graphstr = audio_utils_log_plot(vdata.begin(), vdata.end()); |
| |
| // Show on host log, or if one of the asserts fails. |
| std::cerr << graphstr << std::endl; |
| |
| // Must have at least 3 rows. |
| const auto rows = count(graphstr.begin(), graphstr.end(), '\n'); |
| ASSERT_GE(rows, 3); |
| |
| // Approximate the number of cols (note top and bottom row are empty currently). |
| const auto cols = graphstr.size() / (rows - 2); |
| ASSERT_GE(cols, std::size(data) / 2); // Graph cols filled at least by half. |
| } |