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79 lines
2.4 KiB
79 lines
2.4 KiB
#include "gtest/gtest.h"
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#include "Eigen/Sparse"
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#include "src/exceptions/InvalidArgumentException.h"
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#include <cstdint>
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TEST(EigenSparseMatrixTest, BasicReadWriteTest) {
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// 25 rows, 50 non zero entries
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Eigen::SparseMatrix<int, 1> esm(25, 25);
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int values[50] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
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10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
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30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47, 48, 49
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};
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int position_row[50] = {
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, /* first row empty, one full row 25 minus the diagonal entry */
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4, 4, /* one empty row, then first and last column */
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13, 13, 13, 13, /* a few empty rows, middle columns */
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24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
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24, 24, 24, 24, 24, 24, 24, 24, 24, 24 /* second to last row */
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};
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int position_col[50] = {
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1, 3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
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21, 22, 23, 24, 25, /* first row empty, one full row a 25 */
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1, 25, /* one empty row, then first and last column */
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16, 17, 18, 19, /* a few empty rows, middle columns */
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2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
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14, 15, 16, 17, 18, 19, 20, 21, 22, 23 /* second to last row */
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};
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typedef Eigen::Triplet<double> ETd;
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std::vector<ETd> tripletList;
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tripletList.reserve(50);
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for (int i = 0; i < 50; ++i) {
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ASSERT_NO_THROW(tripletList.push_back(ETd(position_row[i] - 1, position_col[i] - 1, values[i])));
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}
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ASSERT_NO_THROW(esm.setFromTriplets(tripletList.begin(), tripletList.end()));
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for (int i = 0; i < 50; ++i) {
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Eigen::SparseMatrix<int, 1>::InnerIterator it(esm, position_row[i] - 1);
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ASSERT_EQ(values[i], esm.coeff(position_row[i] - 1, position_col[i] - 1));
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}
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// test for a few of the empty rows
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for (int row = 15; row < 24; ++row) {
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for (int col = 1; col <= 25; ++col) {
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ASSERT_EQ(0, esm.coeff(row - 1, col - 1));
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}
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}
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}
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TEST(EigenSparseMatrixTest, BoundaryTest) {
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Eigen::SparseMatrix<int, 1> esm(10, 10);
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esm.reserve(100);
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int values[100];
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for (uint_fast32_t i = 0; i < 100; ++i) {
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values[i] = i;
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}
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for (uint_fast32_t row = 0; row < 10; ++row) {
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for (uint_fast32_t col = 0; col < 10; ++col) {
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ASSERT_NO_THROW(esm.insert(row, col) = values[row * 10 + col]);
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}
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}
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for (uint_fast32_t row = 0; row < 10; ++row) {
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for (uint_fast32_t col = 0; col < 10; ++col) {
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ASSERT_EQ(values[row * 10 + col], esm.coeff(row, col));
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}
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}
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}
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