PowerShell v2 v3 Testing to see if a Folder or File Exists

These are mainly for me to jot down as reminders for myself. If I want to determine if file system object is a file (leaf) or folder (directory) I can use these two tests:

1. Test folder: Test-Path -PathC: est -PathTypeContainer
2. Test file: Test-Path -PathC: est -PathType Leaf 

$False, in these cases, can indicate two things:

1. The item does not exist
2. The item is not the PathType indicated

Be sure you know which you are testing for.