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/*
* 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.
}