Execute(Vim8 Process ID parsing should work):
AssertEqual 123, ale#job#ParseVim8ProcessID('process 123 run')
AssertEqual 347, ale#job#ParseVim8ProcessID('process 347 failed')
AssertEqual 789, ale#job#ParseVim8ProcessID('process 789 dead')
AssertEqual 0, ale#job#ParseVim8ProcessID('no process')