diff --git a/Tests/Public/Import-ZertoVpg.Tests.ps1 b/Tests/Public/Import-ZertoVpg.Tests.ps1
index 50d2f9d..bd91e77 100644
--- a/Tests/Public/Import-ZertoVpg.Tests.ps1
+++ b/Tests/Public/Import-ZertoVpg.Tests.ps1
@@ -16,4 +16,24 @@ Describe $file.BaseName -Tag 'Unit' {
         $null = [System.Management.Automation.PSParser]::Tokenize($contents, [ref]$errors)
         $errors | Should -HaveCount 0
     }
-}
\ No newline at end of file
+
+    Context "$($file.BaseName)::Parameter Unit Tests" {
+
+        It "Has a mandatory string array parameter for the settings file to import" {
+            Get-Command $file.BaseName | Should -HaveParameter settingsFile
+            Get-Command $file.BaseName | Should -HaveParameter settingsFile -Mandatory
+            Get-Command $file.BaseName | Should -HaveParameter settingsFile -Type String[]
+        }
+
+        It "Will not accecpt a Null or Empty string for the settings file" {
+            {Import-ZertoVpg -settingsFile $null} | Should -Throw
+            {Import-ZertoVpg -settingsFile ""} | Should -Throw
+            {Import-ZertoVpg -settingsFile @()} | Should -Throw
+        }
+
+    }
+
+    Context "$($file.BaseName)::Function Unit Tests" {
+
+    }
+}
diff --git a/ZertoApiWrapper/Public/Import-ZertoVpg.ps1 b/ZertoApiWrapper/Public/Import-ZertoVpg.ps1
index bbc45ef..48a72cc 100644
--- a/ZertoApiWrapper/Public/Import-ZertoVpg.ps1
+++ b/ZertoApiWrapper/Public/Import-ZertoVpg.ps1
@@ -8,6 +8,7 @@ function Import-ZertoVpg {
             ValueFromPipeline = $true,
             ValueFromPipelineByPropertyName = $true
         )]
+        [ValidateNotNullOrEmpty()]
         [Alias("FullName")]
         [string[]]$settingsFile
     )