fix handling of input and add example

Author: SteveL-MSFT

dsc/examples/psscript.dsc.yaml

@@ -1,10 +1,25 @@
 # Example configuration mixing native app resources with classic PS resources
 $schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
+parameters:
+  myName:
+    type: string
+    defaultValue: Steve
+  myObject:
+    type: object
+    defaultValue:
+      color: green
+      number: 10
 resources:
 - name: Use PS script
   type: Microsoft.DSC.Transitional/PowerShellScript
   properties:
+    input:
+      - name: "[parameters('myName')]"
+      - object: "[parameters('myObject')]"
     getScript: |
+      param($inputArray)
+
       Write-Warning "This is a warning message"
       # any output will be collected and returned
-      $PSVersionTable
+      "My name is " + $inputArray[0].name
+      "My color is " + $inputArray[1].object.color

resources/PSScript/psscript.dsc.resource.json

@@ -71,7 +71,7 @@
                     "type": ["string", "boolean", "integer", "object", "array", "null"]
                 },
                 "output": {
-                    "type": ["object", "null"]
+                    "type": ["array", "null"]
                 },
                 "_inDesiredState": {
                     "type": ["boolean", "null"],

resources/PSScript/psscript.tests.ps1

@@ -260,9 +260,9 @@ Describe 'Tests for PSScript resource' {
         $configPath = Join-Path $PSScriptRoot '../../dsc/examples/psscript.dsc.yaml'
         $result = dsc config get -f $configPath 2> $TestDrive/error.txt | ConvertFrom-Json -Depth 10
         $LASTEXITCODE | Should -Be 0 -Because (Get-Content $TestDrive/error.txt -Raw | Out-String)
-        $result.results[0].result.actualState.output.Count | Should -Be 1 -Because ($result | ConvertTo-Json -Depth 10 | Out-String)
-        $result.results[0].result.actualState.output[0].PSEdition | Should -BeExactly 'Core'
-        $result.results[0].result.actualState.output[0].PSVersion.Major | Should -Be 7
+        $result.results[0].result.actualState.output.Count | Should -Be 2 -Because ($result | ConvertTo-Json -Depth 10 | Out-String)
+        $result.results[0].result.actualState.output[0] | Should -BeExactly 'My name is Steve'
+        $result.results[0].result.actualState.output[1] | Should -BeExactly 'My color is green'
     }
 
     It 'Input can be a string for <resourceType>' -TestCases $testCases {

resources/PSScript/winpsscript.dsc.resource.json

@@ -51,7 +51,8 @@
     "exitCodes": {
         "0": "Success",
         "1": "PowerShell script execution failed",
-        "2": "PowerShell exception occurred"
+        "2": "PowerShell exception occurred",
+        "3": "Script had errors"
     },
     "schema": {
         "embedded": {
@@ -70,7 +71,7 @@
                     "type": ["string", "boolean", "integer", "object", "array", "null"]
                 },
                 "output": {
-                    "type": ["object", "null"]
+                    "type": ["array", "null"]
                 },
                 "_inDesiredState": {
                     "type": ["boolean", "null"],