Fix bugs reported by Timothy Hunter:

 * CholeskyWithoutSqrt with 1x1 matrices
 * .part<Diagonal>()
Updated unit tests to handle these cases

1 files changed, 2 insertions, 0 deletions

diff --git a/test/triangular.cpp b/test/triangular.cpp
index 22a19f974..2ada0dd90 100644
--- a/test/triangular.cpp
+++ b/test/triangular.cpp
@@ -81,6 +81,8 @@ template<typename MatrixType> void triangular(const MatrixType& m)
   m1.template part<Eigen::Lower>() = (m2.transpose() * m2).lazy();
   VERIFY_IS_APPROX(m3.template part<Eigen::Lower>(), m1);
 
+  VERIFY_IS_APPROX(m3.template part<Diagonal>(), m3.diagonal().asDiagonal());
+
   m1 = MatrixType::Random(rows, cols);
   for (int i=0; i<rows; ++i)
     while (ei_abs2(m1(i,i))<1e-3) m1(i,i) = ei_random<Scalar>();