From 680d318352d0c740992a7e1d6ee5bac766487bbf Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Wed, 9 Sep 2015 11:38:25 +0200
Subject: Add unit tests for bug #981: valid and invalid usage of ternary
 operator

---
 test/basicstuff.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'test/basicstuff.cpp')

diff --git a/test/basicstuff.cpp b/test/basicstuff.cpp
index c6bbf19ee..99d91f9da 100644
--- a/test/basicstuff.cpp
+++ b/test/basicstuff.cpp
@@ -126,6 +126,20 @@ template<typename MatrixType> void basicStuff(const MatrixType& m)
   for(typename MatrixType::Index i=0;i<rows;++i)
     sm2.col(i).noalias() -= sm1.row(i);
   VERIFY_IS_APPROX(sm2,-sm1.transpose());
+  
+  // check ternary usage
+  {
+    bool b = internal::random<int>(0,10)>5;
+    m3 = b ? m1 : m2;
+    if(b) VERIFY_IS_APPROX(m3,m1);
+    else  VERIFY_IS_APPROX(m3,m2);
+    m3 = b ? -m1 : m2;
+    if(b) VERIFY_IS_APPROX(m3,-m1);
+    else  VERIFY_IS_APPROX(m3,m2);
+    m3 = b ? m1 : -m2;
+    if(b) VERIFY_IS_APPROX(m3,m1);
+    else  VERIFY_IS_APPROX(m3,-m2);
+  }
 }
 
 template<typename MatrixType> void basicStuffComplex(const MatrixType& m)
-- 
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