do not use steps like: * "3" is visible with command "ip r | wc -l"

That is non debugable at all, you get message like:

"3" was not visible with "ip r | wc -l", output was:
4

Create step instead, which would log the output, example matching stile of "is visible":

* "3" lines are visible with command "ip r"

which could output error message like:

Command "ip r" did not print 3 lines, but 4:
...
...
...
...