Fix MsiPackage Integration Test Failures

README.md

@@ -577,6 +577,9 @@ The following parameters will be the same for each process in the set:
 
 ### Unreleased
 
+* Fixes issue where MsiPackage Integration tests fail to make an HTTPS
+  connection if Strong Crypto for .NET is not enabled.
+  [Issue #142](https://github.com/PowerShell/PSDscResources/issues/142)
 * Fix Custom DSC Resource Kit PSSA Rule Failures
 
 ### 2.10.0.0

Tests/Integration/MSFT_MsiPackage.EndToEnd.Tests.ps1

@@ -13,6 +13,14 @@ if ($PSVersionTable.PSVersion -lt [Version] '5.1')
     return
 }
 
+$script:testsFolderFilePath = Split-Path $PSScriptRoot -Parent
+$testHelperFolderFilePath = Join-Path -Path $testsFolderFilePath -ChildPath 'TestHelpers'
+$commonTestHelperFilePath = Join-Path -Path $testHelperFolderFilePath -ChildPath 'CommonTestHelper.psm1'
+Import-Module -Name $script:commonTestHelperFilePath
+
+# Make sure strong crypto is enabled in .NET for HTTPS tests
+Enable-StrongCryptoForDotNetFour
+
 Describe 'MsiPackage End to End Tests' {
     BeforeAll {
         # Import CommonTestHelper

Tests/Integration/MSFT_MsiPackage.Integration.Tests.ps1

@@ -17,6 +17,9 @@ $script:testEnvironment = Enter-DscResourceTestEnvironment `
     -DscResourceName 'MSFT_MsiPackage' `
     -TestType 'Unit'
 
+# Make sure strong crypto is enabled in .NET for HTTPS tests
+Enable-StrongCryptoForDotNetFour
+
 try
 {
     InModuleScope 'MSFT_MsiPackage' {

Tests/TestHelpers/CommonTestHelper.psm1

@@ -790,6 +790,46 @@ function Exit-DscResourceTestEnvironment
     Restore-TestEnvironment -TestEnvironment $TestEnvironment
 }
 
+<#
+    .SYNOPSIS
+        Enables strong crypto for .NET v4.0.30319
+#>
+function Enable-StrongCryptoForDotNetFour
+{
+    [OutputType([System.Boolean])]
+    [CmdletBinding()]
+    param()
+
+    $regBases = @(
+        'HKLM:\SOFTWARE\Microsoft'
+        'HKLM:\SOFTWARE\Wow6432Node'
+    )
+
+    $net4Suffix = 'Microsoft\.NetFramework\v4.0.30319'
+
+    foreach ($regBase in $regBases)
+    {
+        $regPath = Join-Path -Path $regBase -ChildPath $net4Suffix
+
+        if ($null -ne (Get-Item -Path $regPath -ErrorAction SilentlyContinue))
+        {
+            $useStrongCryptoProp = Get-ItemProperty -Path $regPath -Name 'SchUseStrongCrypto' -ErrorAction SilentlyContinue
+
+            if ($null -eq $useStrongCryptoProp -or $useStrongCryptoProp.SchUseStrongCrypto -ne 1)
+            {
+                Write-Verbose -Message "Setting property SchUseStrongCrypto at path '$regPath' to 1"
+
+                Set-ItemProperty -Path $regPath -Name 'SchUseStrongCrypto' -Value '1' -Type DWord -ErrorAction Stop
+            }
+        }
+        else
+        {
+            Write-Warning -Message "Failed to find registry key at path: $regPath. Skipping setting SchUseStrongCrypto to 1."
+            continue
+        }
+    }
+}
+
 Export-ModuleMember -Function @(
     'Test-GetTargetResourceResult', `
     'Wait-ScriptBlockReturnTrue', `
@@ -802,5 +842,6 @@ Export-ModuleMember -Function @(
     'Invoke-SetTargetResourceUnitTest', `
     'Invoke-TestTargetResourceUnitTest', `
     'Invoke-ExpectedMocksAreCalledTest', `
-    'Invoke-GenericUnitTest'
+    'Invoke-GenericUnitTest',
+    'Enable-StrongCryptoForDotNetFour'
 )