TST: Rewrite the test that checks the universal SIMD intrinsic (pack)
TST: Rewrite the test that checks the universal SIMD intrinsic (pack)

charris/numpy,mhvk/numpy,anntzer/numpy,mattip/numpy,anntzer/numpy,endolith/numpy,endolith/numpy,anntzer/numpy,pdebuyl/numpy,numpy/numpy,mhvk/numpy,anntzer/numpy,numpy/numpy,pdebuyl/numpy,rgommers/numpy,mhvk/numpy,mattip/numpy,mhvk/numpy,mattip/numpy,mattip/numpy,mhvk/numpy,endolith/numpy,numpy/numpy,charris/numpy,pdebuyl/numpy,numpy/numpy,rgommers/numpy,rgommers/numpy,endolith/numpy,rgommers/numpy,charris/numpy,charris/numpy,pdebuyl/numpy