Fix console warnings in Should-BeEquivalent.Tests.ps1

[fflaten]

PR Summary

Removes "Getting default equivalency options" warning spam in tests.ps1 ouptut. Fixed by providing default options by... well, default in Should-BeEquivalent.Tests.ps1.

Also replaces some calls to New-Object

PR Checklist

• PR has meaningful title
• Summary describes changes
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• Tests are added/update (if required)
• Documentation is updated/added (if required)

[nohwnd]

Clever. I would not think about doing it this way. Can the warning now be removed from the assertion and throw when the options are not provided?

[fflaten]

Yes, I can update the PR tomorrow unless you've already fixed it by then.

[nohwnd]

I won't, too many other things to fix before psconf :D

[fflaten]

Changed to only check if parameter was not provided (allows null). PSDefaultParameters-trick didn't work for nested Compare-Equivalent calls even if I set the default option for the caller, e.g.Compare-DictionaryEquivalent.

Didn't bother to troubleshoot further after I noticed title change on issue #2477 planning to remove this code 🙂