From 25a3e65a685f66f04b83003f12cd97b91e646c20 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 26 Aug 2014 23:32:32 +0200
Subject: In SparseQR, calling factorize() without analyzePattern() was broken.

---
 test/sparseqr.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'test/sparseqr.cpp')

diff --git a/test/sparseqr.cpp b/test/sparseqr.cpp
index 1fe4a98ee..8e6887dd3 100644
--- a/test/sparseqr.cpp
+++ b/test/sparseqr.cpp
@@ -54,6 +54,8 @@ template<typename Scalar> void test_sparseqr_scalar()
   
   b = dA * DenseVector::Random(A.cols());
   solver.compute(A);
+  if(internal::random<float>(0,1)>0.5)
+    solver.factorize(A);  // this checks that calling analyzePattern is not needed if the pattern do not change.
   if (solver.info() != Success)
   {
     std::cerr << "sparse QR factorization failed\n";
-- 
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