Invoke-Formatter: Accept input from pipeline (#1763)

* Invoke-Formatter: Accept input from pipeline

* other params as well

Author: bergmeister

Engine/Commands/InvokeFormatterCommand.cs

@@ -25,14 +25,14 @@ public class InvokeFormatterCommand : PSCmdlet, IOutputWriter
         ///
         /// *NOTE*: Unlike ScriptBlock parameter, the ScriptDefinition parameter require a string value.
         /// </summary>
-        [ParameterAttribute(Mandatory = true, Position = 1)]
+        [ParameterAttribute(Mandatory = true, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, Position = 1)]
         [ValidateNotNull]
         public string ScriptDefinition { get; set; }
 
         /// <summary>
         /// A settings hashtable or a path to a PowerShell data file (.psd1) file that contains the settings.
         /// </summary>
-        [Parameter(Mandatory = false, Position = 2)]
+        [Parameter(Mandatory = false, ValueFromPipelineByPropertyName = true, Position = 2)]
         [ValidateNotNull]
         public object Settings { get; set; } = defaultSettingsPreset;
 
@@ -44,7 +44,7 @@ public class InvokeFormatterCommand : PSCmdlet, IOutputWriter
         /// end column number. These numbers must be greater than 0.
         /// </summary>
         /// <returns></returns>
-        [Parameter(Mandatory = false, Position = 3)]
+        [Parameter(Mandatory = false, ValueFromPipelineByPropertyName = true, Position = 3)]
         [ValidateNotNull]
         [ValidateCount(4, 4)]
         public int[] Range { get; set; }

Tests/Engine/InvokeFormatter.tests.ps1

@@ -14,6 +14,19 @@ Describe "Invoke-Formatter Cmdlet" {
         }
     }
 
+    Context 'Accept Value from Pipeline' {
+        It 'Value from Pipeline' {
+            'foo' | Invoke-Formatter | Should -Be 'foo'
+        }
+        It 'Value from Pipeline by Property Name with just the mandatory ScriptDefinition parameter' {
+            [pscustomobject]@{ 'ScriptDefinition' = 'foo' } | Invoke-Formatter | Should -Be 'foo'
+        }
+        It 'Value from Pipeline by Property Name with all parameters' {
+            [pscustomobject]@{ ScriptDefinition = 'foo'; Settings = @(); Range = 1, 1, 1, 4 } |
+                Invoke-Formatter | Should -Be 'foo'
+        }
+    }
+
     Context "When positional parameters are given" {
         It "Should use the positional parameters" {
             $def = @"