From 11e253bc101d804c1e2dfea90f3c8256700324d4 Mon Sep 17 00:00:00 2001
From: "David J. Luitz" <tux008@googlemail.com>
Date: Thu, 30 Dec 2010 15:16:23 +0100
Subject: [Sparse] Added regression tests for the two bugfixes, the code passes
 all sparse_product tests

---
 test/sparse_product.cpp | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'test/sparse_product.cpp')

diff --git a/test/sparse_product.cpp b/test/sparse_product.cpp
index ce42c5f52..da4ecc306 100644
--- a/test/sparse_product.cpp
+++ b/test/sparse_product.cpp
@@ -137,6 +137,31 @@ template<typename SparseMatrixType> void sparse_product(const SparseMatrixType&
   }
 }
 
+// New test for Bug in SparseTimeDenseProduct
+template<typename SparseMatrixType, typename DenseMatrixType> void sparse_product_regression_test()
+{
+	// This code does not compile with afflicted versions of the bug
+/*	SparseMatrixType sm1(3,2);
+	DenseMatrixType m2(2,2);
+	sm1.setZero();
+	m2.setZero();
+
+	DenseMatrixType m3 = sm1*m2;
+	*/
+
+
+	// This code produces a segfault with afflicted versions of another SparseTimeDenseProduct
+	// bug
+	
+	SparseMatrixType sm2(20000,2);
+	DenseMatrixType m3(2,2);
+	sm2.setZero();
+	m3.setZero();
+	DenseMatrixType m4(sm2*m3);
+
+	VERIFY_IS_APPROX( m4(0,0), 0.0 );
+}
+
 void test_sparse_product()
 {
   for(int i = 0; i < g_repeat; i++) {
@@ -145,5 +170,7 @@ void test_sparse_product()
     CALL_SUBTEST_1( sparse_product(SparseMatrix<double>(33, 33)) );
 
     CALL_SUBTEST_3( sparse_product(DynamicSparseMatrix<double>(8, 8)) );
+
+    CALL_SUBTEST_4( (sparse_product_regression_test<SparseMatrix<double,RowMajor>, Matrix<double, Dynamic, Dynamic, RowMajor> >()) );
   }
 }
-- 
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