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#define BOOST_TEST_MODULE TestYoungLaplace
#include <boost/test/unit_test.hpp>
#include <array>
#include <opendrop/younglaplace.hpp>
using namespace opendrop::younglaplace;
namespace tt = boost::test_tools;
BOOST_AUTO_TEST_CASE(test_young_laplace_shape_call)
{
YoungLaplaceShape<double> shape(0.21);
double s[] = {-0.2, -0.1, 0.0, 0.1, 0.2, 0.4, 0.8, 1.6, 3.2};
double r[] = {
-1.98671000e-1,
-9.98334690e-2,
0.00000000e+0,
9.98334690e-2,
1.98671000e-1,
3.89470759e-1,
7.18911827e-1,
1.03671685e+0,
3.53242294e-1,
};
double z[] = {
1.99230742e-2,
4.99518094e-3,
0.00000000e+0,
4.99518094e-3,
1.99230742e-2,
7.87805625e-2,
3.01185635e-1,
1.01682486e+0,
2.40649189e+0,
};
for (size_t i = 0; i < sizeof(s)/sizeof(*s); i++) {
auto x = shape(s[i]);
BOOST_TEST(x[0] == r[i], tt::tolerance(1e-3));
BOOST_TEST(x[1] == z[i], tt::tolerance(1e-3));
}
}
BOOST_AUTO_TEST_CASE(test_young_laplace_shape_copy_constructor)
{
YoungLaplaceShape<double> shape1(0.123);
// Do some calculations to populate its cache.
shape1(0.5);
// Copy constructor;
YoungLaplaceShape<double> shape2 = shape1;
for (int i = 0; i < 10; i++) {
auto x1 = shape1(i/10.0);
auto x2 = shape2(i/10.0);
BOOST_TEST(x1[0] == x2[0]);
BOOST_TEST(x1[1] == x2[1]);
}
}
BOOST_AUTO_TEST_CASE(test_young_laplace_shape_copy_assignment)
{
YoungLaplaceShape<double> shape1(0.123);
YoungLaplaceShape<double> shape2(0.456);
// Do some calculations to populate their cache.
shape1(0.5);
shape2(0.5);
// Copy assignment.
shape1 = shape2;
for (int i = 0; i < 10; i++) {
auto x1 = shape1(i/10.0);
auto x2 = shape2(i/10.0);
BOOST_TEST(x1[0] == x2[0]);
BOOST_TEST(x1[1] == x2[1]);
}
}
BOOST_AUTO_TEST_CASE(test_young_laplace_zinv)
{
YoungLaplaceShape<double> shape(0.21);
double s[] = {0.0, 0.1, 0.2, 0.4, 0.8, 1.6, 3.2};
double z[] = {
0.00000000e+0,
4.99518094e-3,
1.99230742e-2,
7.87805625e-2,
3.01185635e-1,
1.01682486e+0,
2.40649189e+0,
};
for (size_t i = 0; i < sizeof(s)/sizeof(*s); i++) {
// z_inv() uses linear interpolation so is not very precise.
BOOST_TEST(shape.z_inv(z[i]) == s[i], tt::tolerance(5e-2));
}
}
BOOST_AUTO_TEST_CASE(test_young_laplace_zinv_outside_domain)
{
YoungLaplaceShape<double> shape(0.21);
BOOST_CHECK_THROW(shape.z_inv(-1), std::domain_error);
BOOST_CHECK_THROW(shape.z_inv(100000), std::domain_error);
}
BOOST_AUTO_TEST_CASE(test_young_laplace_closest)
{
using namespace boost::math::differentiation;
YoungLaplaceShape<double> shape(0.21);
BOOST_TEST(shape.closest(0.73, 0.27) == 0.786139, tt::tolerance(1e-5));
BOOST_TEST(shape.closest(0.0, -1.0) == 0.0, tt::tolerance(1e-10));
}
BOOST_AUTO_TEST_CASE(test_young_laplace_volume)
{
YoungLaplaceShape<double> shape(0.21);
BOOST_TEST(shape.volume(4.0) == 5.53648, tt::tolerance(1e-3));
}
BOOST_AUTO_TEST_CASE(test_young_laplace_surface_area)
{
YoungLaplaceShape<double> shape(0.21);
BOOST_TEST(shape.surface_area(4.0) == 15.9890, tt::tolerance(1e-3));
}
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