resources/Dependency.json

@@ -22,7 +22,7 @@
             ]
         },
         {
-            "Name": "PSGet",
+            "Name": "Existing",
             "Modules": [
                 "PowerShellGet"
             ]

src/Helper/Resolve-Dependency.ps1

@@ -66,19 +66,16 @@ function Resolve-Dependency {
         else {
             Write-Warning ("Could not find the dependency file: {0}" -f $DepFilePath)
         }
-        $res = @()
     }
 
     process {
         $SelectedDependency = $Dependency.Optional | Where-Object {$_.Name -match $Name}
-
+        $res = @()
         foreach ($Module in $SelectedDependency.Modules) {
             $res += Test-Module -Name $Module
         }
-        if ($res.count -eq 0) {
-            return $false
-        }
-        elseif ($res -contains $false) {
+        # return false if there was not module at all
+        if (($res -contains $false) -or ($res.Count -eq 0)) {
             return $false
         }
         else {

tests/Helper/01_Resolve-Dependency.Tests.ps1

@@ -44,7 +44,7 @@ Describe "Resolve-Dependency" {
     Context "Testing input variations" {
         Mock Get-ModuleBase {return "{0}\resources" -f $PWD}
         It "Should return true if all given dependencies exist" {
-            Resolve-Dependency -Name 'PSGet' | Should -Be $true
+            Resolve-Dependency -Name 'Existing' | Should -Be $true
         }
         It "Mixed results should return false" {
             Resolve-Dependency -Name 'PSGetMixed' | Should -Be $false