Adding some Write-Progress output to It

[dlwyatt]

Potential fix for #321

I added a few blank lines to the console output at the beginning of Invoke-Pester, to make room for the Progress display. Tests that finish quickly may not wind up displaying any progress output at all, but long-running tests will provide the user with some feedback about what's happening.

[alx9r]

This change seems to be causing some pretty significant side-effects -- at least on my system. Here are the downsides:

• Much of the run-time the result of the latest few test runs are out of site below the bottom of the ISE console.
• The entire console contents jerks up and down as each test runs. The jerking is harsh enough that I have to avert my eyes to avoid discomfort.

[dlwyatt]

I'm not sure what you're referring to. I don't notice any jerking up and down in the ISE or powershell.exe. In both cases, the progress indicator appears at the top of the console / pane, while the most recent test results are at the bottom.

In any case, if you don't want to see that stuff, you can set $ProgressPreference to 'SilentlyContinue' before running Invoke-Pester.

[alx9r]

Hmm...I just restarted ISE and the symptoms aren't there. I think it might have something to do with multiple powershell sessions in ISE (i.e. using CTRL-T) or ISESteroids, or both. I noticed it throughout multiple restarts today, but I didn't realize it wasn't constant until now.