Implement new test for checking module tags

Spaces in modules are not allowed. Wrote a pester test to avoid spaces in module tags

Author: AndiBellstedt

PSModuleDevelopment/tests/general/manifest.Tests.ps1

@@ -1,4 +1,4 @@
-Describe "Validating the module manifest" {
+Describe "Validating the module manifest" {
 	$moduleRoot = (Resolve-Path "$PSScriptRoot\..\..").Path
 	$manifest = ((Get-Content "$moduleRoot\PSModuleDevelopment.psd1") -join "`n") | Invoke-Expression
 	[version]$moduleVersion = Get-Item "$moduleRoot\PSModuleDevelopment.psm1" | Select-String -Pattern '\$script:PSModuleVersion = "(.*?)"' | ForEach-Object { $_.Matches[0].Groups[1].Value }
@@ -8,41 +8,47 @@
 			$count = (Compare-Object -ReferenceObject $files.BaseName -DifferenceObject $manifest.FunctionsToExport).Count
 			$count | Should be 0
 		}
-		
+
 		It "Exports none of its internal functions" {
 			$files = Get-ChildItem "$moduleRoot\internal\functions" -Recurse -File -Filter "*.ps1"
 			$files | Where-Object BaseName -In $manifest.FunctionsToExport | Should Be $null
 		}
-		
+
 		It "Has the same version as the psm1 file" {
 			([version]$manifest.ModuleVersion) | Should Be $moduleVersion
 		}
 	}
-	
+
 	Context "Individual file validation" {
 		It "The root module file exists" {
 			Test-Path "$moduleRoot\$($manifest.RootModule)" | Should Be $true
 		}
-		
+
 		foreach ($format in $manifest.FormatsToProcess)
 		{
 			It "The file $format should exist" {
 				Test-Path "$moduleRoot\$format" | Should Be $true
 			}
 		}
-		
+
 		foreach ($type in $manifest.TypesToProcess)
 		{
 			It "The file $type should exist" {
 				Test-Path "$moduleRoot\$type" | Should Be $true
 			}
 		}
-		
+
 		foreach ($assembly in $manifest.RequiredAssemblies)
 		{
 			It "The file $assembly should exist" {
 				Test-Path "$moduleRoot\$assembly" | Should Be $true
 			}
 		}
+
+		foreach ($tag in $manifest.PrivateData.PSData.Tags) {
+			It "Tags should have no spaces in name" {
+				$tag -match " " | Should -Be $false
+			}
+		}
 	}
-}
+}