Files
allwpilib/wpimath/src/test/native/cpp/FormatterTest.cpp
Tyler Veness 0ef8a4e1df [wpimath] Support formatting more Eigen types (#4391)
Added an Eigen::SparseMatrix formatter.

Also modified the Eigen::Matrix formatter to support Eigen::MatrixXd.
Eigen::MatrixXd sets both dimension template arguments to -1, so they
can't be used for iteration. rows() and cols() are now used instead.

rows() and cols() are constexpr for statically sized matrices, so
there's no performance loss there.
2022-09-02 01:00:05 -07:00

47 lines
1.3 KiB
C++

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#include <vector>
#include <fmt/format.h>
#include "frc/fmt/Eigen.h"
#include "frc/fmt/Units.h"
#include "gtest/gtest.h"
#include "units/velocity.h"
TEST(FormatterTest, Eigen) {
Eigen::Matrix<double, 3, 2> A{{0.0, 1.0}, {2.0, 3.0}, {4.0, 5.0}};
EXPECT_EQ(
" 0.000000 1.000000\n"
" 2.000000 3.000000\n"
" 4.000000 5.000000",
fmt::format("{}", A));
Eigen::MatrixXd B{{0.0, 1.0}, {2.0, 3.0}, {4.0, 5.0}};
EXPECT_EQ(
" 0.000000 1.000000\n"
" 2.000000 3.000000\n"
" 4.000000 5.000000",
fmt::format("{}", B));
Eigen::SparseMatrix<double> C{3, 2};
std::vector<Eigen::Triplet<double>> triplets;
triplets.emplace_back(0, 1, 1.0);
triplets.emplace_back(1, 0, 2.0);
triplets.emplace_back(1, 1, 3.0);
triplets.emplace_back(2, 0, 4.0);
triplets.emplace_back(2, 1, 5.0);
C.setFromTriplets(triplets.begin(), triplets.end());
EXPECT_EQ(
" 0.000000 1.000000\n"
" 2.000000 3.000000\n"
" 4.000000 5.000000",
fmt::format("{}", C));
}
TEST(FormatterTest, Units) {
EXPECT_EQ("4 mps", fmt::format("{}", 4_mps));
}