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bug #1617: add unit tests for empty triangular solve.

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This commit is contained in:
Gael Guennebaud 2019-01-16 15:24:59 +01:00
parent 502f717980
commit aeffdf909e
2 changed files with 26 additions and 0 deletions
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13
test/product_trsolve.cpp
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@ -71,6 +71,19 @@ template<typename Scalar,int Size, int Cols> void trsolve(int size=Size,int cols
int c = internal::random<int>(0,cols-1);
VERIFY_TRSM(rmLhs.template triangularView<Lower>(), rmRhs.col(c));
VERIFY_TRSM(cmLhs.template triangularView<Lower>(), rmRhs.col(c));
if(Size==Dynamic)
{
cmLhs.resize(0,0);
cmRhs.resize(0,cmRhs.cols());
Matrix<Scalar,Size,Cols,colmajor> res = cmLhs.template triangularView<Lower>().solve(cmRhs);
VERIFY_IS_EQUAL(res.rows(),0);
VERIFY_IS_EQUAL(res.cols(),cmRhs.cols());
res = cmRhs;
cmLhs.template triangularView<Lower>().solveInPlace(res);
VERIFY_IS_EQUAL(res.rows(),0);
VERIFY_IS_EQUAL(res.cols(),cmRhs.cols());
}
}
EIGEN_DECLARE_TEST(product_trsolve)

13
test/sparse_solvers.cpp
View File

@ -98,6 +98,19 @@ template<typename Scalar> void sparse_solvers(int rows, int cols)
initSparse<Scalar>(density, refMat2, m2, ForceNonZeroDiag|MakeLowerTriangular, &zeroCoords, &nonzeroCoords);
VERIFY_IS_APPROX(refMat2.template triangularView<Lower>().solve(vec2),
m2.template triangularView<Lower>().solve(vec3));
// test empty triangular matrix
{
m2.resize(0,0);
refMatB.resize(0,refMatB.cols());
DenseMatrix res = m2.template triangularView<Lower>().solve(refMatB);
VERIFY_IS_EQUAL(res.rows(),0);
VERIFY_IS_EQUAL(res.cols(),refMatB.cols());
res = refMatB;
m2.template triangularView<Lower>().solveInPlace(res);
VERIFY_IS_EQUAL(res.rows(),0);
VERIFY_IS_EQUAL(res.cols(),refMatB.cols());
}
}
}