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Added some sparse_matrix_vector_multiply() unit tests.

This commit is contained in:
Davis King 2012-11-24 16:20:10 -05:00
parent 6b2b213d9e
commit f3b154dfe6
1 changed files with 46 additions and 0 deletions
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46
dlib/test/sparse_vector.cpp
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@ -67,6 +67,50 @@ namespace
// ----------------------------------------------------------------------------------------
void test_sparse_matrix_vector_multiply1()
{
print_spinner();
std::map<unsigned long,double> sv;
sv[2] = 8;
sv[6] = 2.3;
matrix<double,10,1> v;
v = 0;
v(2) = 8;
v(6) = 2.3;
matrix<double,0,1> r1, r2;
r1 = gaussian_randm(4,10)*v;
r2 = sparse_matrix_vector_multiply(gaussian_randm(4,std::numeric_limits<long>::max()),sv);
DLIB_TEST(max(abs(r1-r2)) < 1e-15);
}
// ----------------------------------------------------------------------------------------
void test_sparse_matrix_vector_multiply2()
{
std::vector<std::pair<unsigned long,double> > sv;
sv.push_back(make_pair(6, 1.42));
sv.push_back(make_pair(3, 5));
matrix<double,9,1> v;
v = 0;
v(3) = 5;
v(6) = 1.42;
matrix<double,0,1> r1, r2;
r1 = gaussian_randm(3,9)*v;
r2 = sparse_matrix_vector_multiply(gaussian_randm(3,std::numeric_limits<long>::max()),sv);
DLIB_TEST(max(abs(r1-r2)) < 1e-15);
}
// ----------------------------------------------------------------------------------------
class sparse_vector_tester : public tester
{
@ -194,6 +238,8 @@ namespace
}
test_sparse_matrix_vector_multiplies();
test_sparse_matrix_vector_multiply1();
test_sparse_matrix_vector_multiply2();
}
};