fix test for empty list

6 jobs for CMakeTargetDebugging in 6 minutes and 46 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
failed #68321
Qt551 VS2013
CoMISo-VS2013-Qt-5.5.1-x64

00:01:04

failed #68322
IPOPT3129 VS2017
CoMISo-VS2017-Qt-5.10.1-x64

00:01:25

passed #68319
Linux
clang-c++11

00:05:17

passed #68318
Linux
gcc-c++11

00:06:46

passed #68320
Apple
macos-c++11

00:02:56

 
  Deploy
skipped #68323
trigger_build
 
Name Stage Failure
failed
CoMISo-VS2017-Qt-5.10.1-x64 Test
16>Done building project "small_quadratic_solver.vcxproj".
5> Creating library E:/gitlab/builds/9d73ae51/0/CoMISo/CoMISo/rel/Examples/small_AQP/Release/small_AQP.lib and object E:/gitlab/builds/9d73ae51/0/CoMISo/CoMISo/rel/Examples/small_AQP/Release/small_AQP.exp
5>small_AQP.vcxproj -> E:\gitlab\builds\9d73ae51\0\CoMISo\CoMISo\rel\Examples\small_AQP\Release\small_AQP.exe
5>Done building project "small_AQP.vcxproj".
18>------ Build started: Project: ALL_BUILD, Configuration: Release x64 ------
18>Building Custom Rule E:/gitlab/builds/9d73ae51/0/CoMISo/CoMISo/CMakeLists.txt
18>CMake does not need to re-run because E:/gitlab/builds/9d73ae51/0/CoMISo/CoMISo/rel/CMakeFiles/generate.stamp is up-to-date.
========== Build: 17 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
ERROR: Job failed: exit status 1
failed
CoMISo-VS2013-Qt-5.5.1-x64 Test
16>LINK : fatal error LNK1181: cannot open input file '..\..\Release\CoMISo.lib'
15>LINK : fatal error LNK1181: cannot open input file '..\..\Release\CoMISo.lib'
17>LINK : fatal error LNK1181: cannot open input file '..\..\Release\CoMISo.lib'
5>LINK : fatal error LNK1181: cannot open input file '..\..\Release\CoMISo.lib'
18>------ Build started: Project: ALL_BUILD, Configuration: Release x64 ------
18> Building Custom Rule E:/gitlab/builds/1900f1de/0/CoMISo/CoMISo/CMakeLists.txt
18> CMake does not need to re-run because E:/gitlab/builds/1900f1de/0/CoMISo/CoMISo/rel/CMakeFiles/generate.stamp is up-to-date.
========== Build: 2 succeeded, 16 failed, 0 up-to-date, 0 skipped ==========
ERROR: Job failed: exit status 1