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add reshape test for const and static-size matrix

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yoco 2014-01-18 23:27:53 +08:00
parent 150796337a
commit 24e1c0f2a1
1 changed files with 36 additions and 25 deletions
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61
test/reshape.cpp
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@ -12,14 +12,8 @@
using Eigen::Map; using Eigen::Map;
using Eigen::MatrixXi; using Eigen::MatrixXi;
void dynamic_reshape_all_size(int row, int col) { template <typename MatType>
// create matrix(row, col) and filled with 0, 1, 2, ... void dynamic_reshape_all_size(MatType m, int row, int col) {
Eigen::MatrixXi m(row, col);
for(int r = 0; r < row; ++r)
for(int c = 0; c < col; ++c)
m(r, c) = col * c + r;
// for all possible shape
for(int new_r = 1; new_r <= row * col; ++new_r) { for(int new_r = 1; new_r <= row * col; ++new_r) {
// skip invalid shape // skip invalid shape
if(row * col % new_r != 0) if(row * col % new_r != 0)
@ -34,25 +28,42 @@ void dynamic_reshape_all_size(int row, int col) {
// just test a 4x4 matrix, enumerate all combination manually, // just test a 4x4 matrix, enumerate all combination manually,
// so I don't have to do template-meta-programming here. // so I don't have to do template-meta-programming here.
void static_reshape_all_size() { template <typename MatType>
// create matrix(row, col) and filled with 0, 1, 2, ... void static_reshape_all_size(MatType m) {
int row = 4; VERIFY_IS_EQUAL((m.template reshape< 1, 16>()), Map<MatrixXi>(m.data(), 1, 16));
int col = 4; VERIFY_IS_EQUAL((m.template reshape< 2, 8>()), Map<MatrixXi>(m.data(), 2, 8));
Eigen::MatrixXi m(row, col); VERIFY_IS_EQUAL((m.template reshape< 4, 4>()), Map<MatrixXi>(m.data(), 4, 4));
for(int r = 0; r < row; ++r) VERIFY_IS_EQUAL((m.template reshape< 8, 2>()), Map<MatrixXi>(m.data(), 8, 2));
for(int c = 0; c < col; ++c) VERIFY_IS_EQUAL((m.template reshape<16, 1>()), Map<MatrixXi>(m.data(), 16, 1));
m(r, c) = col * c + r;
// reshape and compare
VERIFY_IS_EQUAL((m.reshape< 1, 16>()), Map<MatrixXi>(m.data(), 1, 16));
VERIFY_IS_EQUAL((m.reshape< 2, 8>()), Map<MatrixXi>(m.data(), 2, 8));
VERIFY_IS_EQUAL((m.reshape< 4, 4>()), Map<MatrixXi>(m.data(), 4, 4));
VERIFY_IS_EQUAL((m.reshape< 8, 2>()), Map<MatrixXi>(m.data(), 8, 2));
VERIFY_IS_EQUAL((m.reshape<16, 1>()), Map<MatrixXi>(m.data(), 16, 1));
} }
void test_reshape() void test_reshape()
{ {
CALL_SUBTEST(dynamic_reshape_all_size(4, 4)); // create matrix(row, col) and filled with 0, 1, 2, ...
CALL_SUBTEST(static_reshape_all_size()); // for all possible shape
int row = 4;
int col = 4;
Eigen::MatrixXi mx(row, col);
Eigen::Matrix4i m4(row, col);
for(int r = 0; r < row; ++r) {
for(int c = 0; c < col; ++c) {
mx(r, c) = col * c + r;
m4(r, c) = col * c + r;
}
}
// test dynamic-size matrix
CALL_SUBTEST(dynamic_reshape_all_size(mx, 4, 4));
CALL_SUBTEST(static_reshape_all_size(mx));
// test static-size matrix
CALL_SUBTEST(dynamic_reshape_all_size(m4, 4, 4));
CALL_SUBTEST(static_reshape_all_size(m4));
// test dynamic-size const matrix
CALL_SUBTEST(dynamic_reshape_all_size(static_cast<const Eigen::MatrixXi>(mx), 4, 4));
CALL_SUBTEST(static_reshape_all_size(static_cast<const Eigen::MatrixXi>(mx)));
// test static-size const matrix
CALL_SUBTEST(dynamic_reshape_all_size(static_cast<const Eigen::Matrix4i>(m4), 4, 4));
CALL_SUBTEST(static_reshape_all_size(static_cast<const Eigen::Matrix4i>(m4)));
} }