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Add more checks to cover bug that was in operator -=.

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This commit is contained in:
Atgeirr Flø Rasmussen 2014-03-26 12:25:11 +01:00
parent 60ff38adc6
commit 347016a066
1 changed files with 14 additions and 0 deletions
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14
tests/test_block.cpp
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@ -195,6 +195,7 @@ BOOST_AUTO_TEST_CASE(AssignAddSubtractOperators)
{
typedef AutoDiffBlock<double> ADB;
// Basic testing of += and -=.
ADB::V vx(3);
vx << 0.2, 1.2, 13.4;
@ -218,4 +219,17 @@ BOOST_AUTO_TEST_CASE(AssignAddSubtractOperators)
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));
// Testing the case when the left hand side has empty() jacobian.
ADB yconst = ADB::constant(vy);
z = yconst;
z -= x;
ADB diff = yconst - x;
BOOST_CHECK(z.value().isApprox(diff.value(), tolerance));
BOOST_CHECK(z.derivative()[0].isApprox(diff.derivative()[0], tolerance));
BOOST_CHECK(z.derivative()[1].isApprox(diff.derivative()[1], tolerance));
z += x;
BOOST_CHECK(z.value().isApprox(yconst.value(), tolerance));
BOOST_CHECK(z.derivative()[0].isApprox(Eigen::Matrix<double, 3, 3>::Zero()));
BOOST_CHECK(z.derivative()[1].isApprox(Eigen::Matrix<double, 3, 3>::Zero()));
}