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bug #978: add unit test for zero-sized products

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This commit is contained in:
Gael Guennebaud 2015-03-06 16:12:08 +01:00
parent 87681e508f
commit d23fcc0672
1 changed files with 28 additions and 2 deletions
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30
test/product_extra.cpp
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@ -110,7 +110,32 @@ void mat_mat_scalar_scalar_product()
VERIFY_IS_APPROX(dNdxy.transpose()*dNdxy*det*wt, det*wt*dNdxy.transpose()*dNdxy);
}
void zero_sized_objects()
template <typename MatrixType>
void zero_sized_objects(const MatrixType& m)
{
Index rows = m.rows();
Index cols = m.cols();
{
MatrixType res, a(rows,0), b(0,cols);
VERIFY_IS_APPROX( (res=a*b), MatrixType::Zero(rows,cols) );
VERIFY_IS_APPROX( (res=a*a.transpose()), MatrixType::Zero(rows,rows) );
VERIFY_IS_APPROX( (res=b.transpose()*b), MatrixType::Zero(cols,cols) );
VERIFY_IS_APPROX( (res=b.transpose()*a.transpose()), MatrixType::Zero(cols,rows) );
}
{
MatrixType res, a(rows,cols), b(cols,0);
res = a*b;
VERIFY(res.rows()==rows && res.cols()==0);
b.resize(0,rows);
res = b*a;
VERIFY(res.rows()==0 && res.cols()==cols);
}
}
void bug_127()
{
// Bug 127
//
@ -171,7 +196,8 @@ void test_product_extra()
CALL_SUBTEST_2( mat_mat_scalar_scalar_product() );
CALL_SUBTEST_3( product_extra(MatrixXcf(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2), internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))) );
CALL_SUBTEST_4( product_extra(MatrixXcd(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2), internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))) );
CALL_SUBTEST_1( zero_sized_objects(MatrixXf(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) );
}
CALL_SUBTEST_5( zero_sized_objects() );
CALL_SUBTEST_5( bug_127() );
CALL_SUBTEST_6( unaligned_objects() );
}