Changes to SqlServerDsc

- Removed the local specific common test for compiling examples in this repository
  and instead opt-in for the common test in the DscResource.Tests repository (issue dsccommunity#669).

Tests/SqlServerDscCommon.Tests.ps1

@@ -1,75 +1,4 @@
-[CmdletBinding()]
-# Suppressing this because we need to generate a mocked credentials that will be passed along to the examples that are needed in the tests.
-[Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingConvertToSecureStringWithPlainText", "")]
-param()
-
 $script:moduleRoot = Split-Path $PSScriptRoot -Parent
 
 Describe 'SqlServerDsc module common tests' {
-    Context -Name 'When there are example file for resource' {
-            <#
-                For Appveyor builds copy the module to the system modules directory so it falls
-                in to a PSModulePath folder and is picked up correctly.
-            #>
-            if ($env:APPVEYOR)
-            {
-                $powershellModulePath = Join-Path -Path (($env:PSModulePath -split ';')[0]) -ChildPath 'SqlServerDsc'
-                Copy-item -Path $env:APPVEYOR_BUILD_FOLDER -Destination $powershellModulePath -Recurse -Force
-            }
-
-            $mockPassword = ConvertTo-SecureString '&iPm%M5q3K$Hhq=wcEK' -AsPlainText -Force
-            $mockCredential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList @('username', $mockPassword)
-            $mockConfigData = @{
-                AllNodes = @(
-                    @{
-                        NodeName = "localhost"
-                        PSDscAllowPlainTextPassword = $true
-                    }
-                )
-            }
-
-            $exampleFile = Get-ChildItem -Path "$script:moduleRoot\Examples\Resources" -Filter "*.ps1" -Recurse
-
-            foreach ($exampleToValidate in $exampleFile)
-            {
-                $exampleDescriptiveName = Join-Path -Path (Split-Path $exampleToValidate.Directory -Leaf) -ChildPath (Split-Path $exampleToValidate -Leaf)
-
-                It "Should compile MOFs for example '$exampleDescriptiveName' correctly" {
-                    {
-                        . $exampleToValidate.FullName
-
-                        $exampleCommand = Get-Command Example -ErrorAction SilentlyContinue
-                        if ($exampleCommand)
-                        {
-                            try
-                            {
-                                $params = @{}
-                                $exampleCommand.Parameters.Keys | Where-Object { $_ -like '*Account' -or ($_ -like '*Credential' -and $_ -ne 'PsDscRunAsCredential')  } | ForEach-Object -Process {
-                                    $params.Add($_, $mockCredential)
-                                }
-
-                                Example @params -ConfigurationData $mockConfigData -OutputPath 'TestDrive:\' -ErrorAction Continue -WarningAction SilentlyContinue | Out-Null
-                            }
-                            finally
-                            {
-                                # Remove the function we dot-sourced so next example file doesn't use the previous Example-function.
-                                Remove-Item function:Example
-                            }
-                        }
-                        else
-                        {
-                            throw "The example '$exampleDescriptiveName' does not contain a function 'Example'."
-                        }
-                    } | Should -Not -Throw
-                }
-        }
-
-        if ($env:APPVEYOR -eq $true)
-        {
-            Remove-item -Path $powershellModulePath -Recurse -Force -Confirm:$false
-
-            # Restore the module in 'memory' to ensure other tests after this test have access to it
-            Import-Module -Name "$script:moduleRoot\SqlServerDsc.psd1" -Global -Force
-        }
-    }
 }