SqlServerDsc: Fixes integration test fail to install default instance (…

…#1262)

- Changes to SqlServerDsc
   - During testing in AppVeyor the Build Worker is restarted in the install
     step to make sure the are no residual changes left from a previous SQL
     Server install on the Build Worker done by the AppVeyor Team (issue #1260).

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ## Unreleased
 
+- Changes to SqlServerDsc
+  - During testing in AppVeyor the Build Worker is restarted in the install
+    step to make sure the are no residual changes left from a previous SQL
+    Server install on the Build Worker done by the AppVeyor Team
+    ([issue #1260](https://github.com/PowerShell/SqlServerDsc/issues/1260)).
+
 ## 12.1.0.0
 
 - Changes to SqlServerDsc

appveyor.yml

@@ -5,6 +5,9 @@ version: 9.0.{build}.0
 image: Visual Studio 2017
 install:
     - git clone https://github.com/PowerShell/DscResource.Tests
+    - ps: Start-Sleep -Seconds 5
+    - ps: Restart-Computer -Force
+    - ps: Start-Sleep -Seconds 5
     - ps: Write-Verbose -Message "PowerShell version $($PSVersionTable.PSVersion)" -Verbose
     - ps: Import-Module "$env:APPVEYOR_BUILD_FOLDER\DscResource.Tests\AppVeyor.psm1"
     - ps: Invoke-AppveyorInstallTask