BD_Integratoren/test/test_Rod2d.cpp
2021-10-22 21:58:37 +02:00

47 lines
1.3 KiB
C++

//
// Created by jholder on 21.10.21.
//
#include "Rod2d.hpp"
#include <catch2/catch.hpp>
#include <Eigen/Dense>
TEST_CASE("Rods") {
Rod2d sphere(1);
Rod2d rod(2);
SECTION("Checking translation") {
rod.setPos(rod.getPos() + Eigen::Vector2d(1, -1));
auto newPos = rod.getPos();
REQUIRE(newPos[0] == 1);
REQUIRE(newPos[1] == -1);
REQUIRE(sphere.getDiff_Sqrt()(0,0) == 1.0);
REQUIRE(sphere.getDiff_Sqrt()(0,1) == 0.0);
REQUIRE(sphere.getDiff_Sqrt()(1,0) == 0.0);
REQUIRE(sphere.getDiff_Sqrt()(1,1) == 1.0);
}SECTION("Checking rotation") {
SECTION("Forwards == e 90"){
//
// =====
//
rod.setE({0, 1}); // Lab system is 90 degree rotated
auto test = Eigen::Vector2d ({1,0});
auto erg = (rod.getE_Base_matrix()*test).normalized();
auto e = rod.getE();
REQUIRE(erg.isApprox(e));
}
SECTION("Forwards == e 45"){
// o
// o
// o
rod.setE(Eigen::Vector2d ({1,1}).normalized()); // Lab system is 90 degree rotated
auto test = Eigen::Vector2d ({1,0});
auto erg = (rod.getE_Base_matrix()*test).normalized();
auto e = rod.getE();
REQUIRE(erg.isApprox(e));
}
}
}