Add tests

Author: yutingc

Tests/Rules/AvoidPositionalParametersNoViolations.ps1

@@ -3,4 +3,5 @@ Get-ChildItem -Path "Tests"
 Clear-Host
 Split-Path -Path "Random" -leaf
 Get-Process | Where-Object {$_.handles -gt 200}
-get-service-computername localhost | where {($_.status -eq "Running") -and ($_.CanStop -eq $true)}
+get-service-computername localhost | where {($_.status -eq "Running") -and ($_.CanStop -eq $true)}
+1, 2, $null, 4 | ForEach-Object {"Hello"}