Added test for += and -= operators.

This commit is contained in:
Atgeirr Flø Rasmussen 2014-03-26 12:03:44 +01:00
parent 37a23825c4
commit 60ff38adc6

View File

@ -190,3 +190,32 @@ BOOST_AUTO_TEST_CASE(Addition)
BOOST_CHECK(*j3b == ADB::M((*j1b) * 2)); BOOST_CHECK(*j3b == ADB::M((*j1b) * 2));
} }
} }
BOOST_AUTO_TEST_CASE(AssignAddSubtractOperators)
{
typedef AutoDiffBlock<double> ADB;
ADB::V vx(3);
vx << 0.2, 1.2, 13.4;
ADB::V vy(3);
vy << 1.0, 2.2, 3.4;
std::vector<ADB::V> vals{ vx, vy };
std::vector<ADB> vars = ADB::variables(vals);
const ADB x = vars[0];
const ADB y = vars[1];
ADB z = x;
z += y;
ADB sum = x + y;
const double tolerance = 1e-14;
BOOST_CHECK(z.value().isApprox(sum.value(), tolerance));
BOOST_CHECK(z.derivative()[0].isApprox(sum.derivative()[0], tolerance));
BOOST_CHECK(z.derivative()[1].isApprox(sum.derivative()[1], tolerance));
z -= y;
BOOST_CHECK(z.value().isApprox(x.value(), tolerance));
BOOST_CHECK(z.derivative()[0].isApprox(x.derivative()[0], tolerance));
BOOST_CHECK(z.derivative()[1].isApprox(x.derivative()[1], tolerance));
}