Added test cases. Unfortunately, iterative methods cannot converge in such a...

Added test cases. Unfortunately, iterative methods cannot converge in such a short time, we did not test on the accuracy
2 jobs for master in 5 minutes (queued for 9 minutes and 13 seconds)
Status Job ID Name Coverage
  Test
passed #8581
gnu

00:02:31

passed #8582
intel

00:02:29