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| 1 | +/** |
| 2 | + * @file MileageTest.cpp |
| 3 | + * @brief 走行距離の測定用クラスのテスト |
| 4 | + * @author molpui0726 |
| 5 | + */ |
| 6 | + |
| 7 | +#include <cmath> |
| 8 | +#include <gtest/gtest.h> |
| 9 | +#include "Mileage.h" |
| 10 | + |
| 11 | +namespace etrobocon2025_test { |
| 12 | + TEST(MileageTest, CalculateMileagePlus) |
| 13 | + { |
| 14 | + int32_t rightAngle = 30; |
| 15 | + int32_t leftAngle = 40; |
| 16 | + |
| 17 | + // 計算過程 |
| 18 | + // 1.右車輪の累計走行距離を算出 |
| 19 | + // double rightWheelMileage = 2.0 * rightAngle * radius * M_PI / 360.0; |
| 20 | + // M_PI = 3.14: rightWheelMileage = 2.0 * 30.0 * 28.0 * 3.14 / 360.0 = 14.6533... |
| 21 | + // M_PI = 3.15: rightWheelMileage = 2.0 * 30.0 * 28.0 * 3.15 / 360.0 = 14.70 |
| 22 | + // 2.左車輪の累計走行距離を算出 |
| 23 | + // double leftWheelMileage = 2.0 * leftAngle * radius * M_PI / 360.0; |
| 24 | + // M_PI = 3.14: leftWheelMileage = 2.0 * 40.0 * 28.0 * 3.14 / 360.0 = 19.53777... |
| 25 | + // M_PI = 3.15: leftWheelMileage = 2.0 * 40.0 * 28.0 * 3.15 / 360.0 = 19.60 |
| 26 | + // 3.両車輪の累計走行距離の平均を算出 |
| 27 | + // double expected = (rightWheelMileage + leftWheelMileage) / 2.0; |
| 28 | + // M_PI = 3.14: (14.6533... + 19.5377...) / 2 = 17.09555... |
| 29 | + // M_PI = 3.15: (14.70 + 19.60) / 2 = 17.15 |
| 30 | + double expected_min = 17.09555; |
| 31 | + double expected_max = 17.15; |
| 32 | + |
| 33 | + // actual: 17.104227 |
| 34 | + double actual = Mileage::calculateMileage(rightAngle, leftAngle); |
| 35 | + |
| 36 | + // M_PIが3.14で計算した値よりも大きいアサーションと、3.15で計算した値よりも小さいアサーションを両方満たすか |
| 37 | + EXPECT_LT(expected_min, actual); |
| 38 | + EXPECT_GT(expected_max, actual); |
| 39 | + } |
| 40 | + |
| 41 | + TEST(MileageTest, CalculateMileageMinus) |
| 42 | + { |
| 43 | + int32_t rightAngle = -30; |
| 44 | + int32_t leftAngle = -40; |
| 45 | + double expected_min = -17.15; |
| 46 | + double expected_max = -17.09555; |
| 47 | + double actual = Mileage::calculateMileage(rightAngle, leftAngle); |
| 48 | + EXPECT_LT(expected_min, actual); |
| 49 | + EXPECT_GT(expected_max, actual); |
| 50 | + } |
| 51 | + |
| 52 | + TEST(MileageTest, CalculateMileageZero) |
| 53 | + { |
| 54 | + int32_t rightAngle = 0; |
| 55 | + int32_t leftAngle = 0; |
| 56 | + double expected = 0.0; |
| 57 | + double actual = Mileage::calculateMileage(rightAngle, leftAngle); |
| 58 | + EXPECT_DOUBLE_EQ(expected, actual); |
| 59 | + } |
| 60 | +} // namespace etrobocon2025_test |
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