show registered snapins on appveyor build

src/Helper/Test-Module.ps1

@@ -89,8 +89,8 @@ Could not find the required {0} called {1}. Please install the required {0} to r
                 else {
                     if ($StopIfFails) {
                         Write-Error -Message $Message -ErrorAction Stop -Category NotInstalled
-                        return $false
                     }
+                    return $false
                 }
             }
 

tests/Helper/01_Test-Module.Tests.ps1

@@ -32,7 +32,8 @@ Describe "Test-ModuleName" {
     }
     Context "Working with PSSnapins" {
         It "Loading first PSSnaping should not throw " {
-            $Snap = Get-PSSnapin -Registered | Select-Object -First 1
+            $Snap = Get-PSSnapin -Registered
+            $Snap
             { $loaded = Test-Module -Name $Snap.Name -Type PSSnapin } | Should -Not -Throw
             Remove-PSSnapin -Name $Snap.Name
         }