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Add unit tests for bug #981: valid and invalid usage of ternary operator

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This commit is contained in:
Gael Guennebaud 2015-09-09 11:38:25 +02:00
parent 84e0c27b61
commit 680d318352
4 changed files with 43 additions and 0 deletions
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3
failtest/CMakeLists.txt
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@ -41,6 +41,9 @@ ei_add_failtest("ref_5")
ei_add_failtest("swap_1")
ei_add_failtest("swap_2")
ei_add_failtest("ternary_1")
ei_add_failtest("ternary_2")
ei_add_failtest("sparse_ref_1")
ei_add_failtest("sparse_ref_2")
ei_add_failtest("sparse_ref_3")

13
failtest/ternary_1.cpp Normal file
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@ -0,0 +1,13 @@
#include "../Eigen/Core"
using namespace Eigen;
int main(int argc,char **)
{
VectorXf a(10), b(10);
#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
b = argc>1 ? 2*a : -a;
#else
b = argc>1 ? 2*a : VectorXf(-a);
#endif
}

13
failtest/ternary_2.cpp Normal file
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@ -0,0 +1,13 @@
#include "../Eigen/Core"
using namespace Eigen;
int main(int argc,char **)
{
VectorXf a(10), b(10);
#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
b = argc>1 ? 2*a : a+a;
#else
b = argc>1 ? VectorXf(2*a) : VectorXf(a+a);
#endif
}

14
test/basicstuff.cpp
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@ -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)