Files
allwpilib/wpilibc/src/test/native/cpp/trajectory/CentripetalAccelerationConstraintTest.cpp
2019-09-28 15:40:56 -07:00

44 lines
1.5 KiB
C++

/*----------------------------------------------------------------------------*/
/* Copyright (c) 2019 FIRST. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
/*----------------------------------------------------------------------------*/
#include <memory>
#include <vector>
#include <units/units.h>
#include "frc/trajectory/constraint/CentripetalAccelerationConstraint.h"
#include "frc/trajectory/constraint/TrajectoryConstraint.h"
#include "gtest/gtest.h"
#include "trajectory/TestTrajectory.h"
using namespace frc;
TEST(CentripetalAccelerationConstraintTest, Constraint) {
const auto maxCentripetalAcceleration = 7_fps_sq;
std::vector<std::unique_ptr<TrajectoryConstraint>> constraints;
constraints.emplace_back(std::make_unique<CentripetalAccelerationConstraint>(
maxCentripetalAcceleration));
auto trajectory = TestTrajectory::GetTrajectory(std::move(constraints));
units::second_t time = 0_s;
units::second_t dt = 20_ms;
units::second_t duration = trajectory.TotalTime();
while (time < duration) {
const Trajectory::State point = trajectory.Sample(time);
time += dt;
auto centripetalAcceleration =
units::math::pow<2>(point.velocity) * point.curvature / 1_rad;
EXPECT_TRUE(centripetalAcceleration <
maxCentripetalAcceleration + 0.05_mps_sq);
}
}