ConvertTo-CimInstance add parameters for ClassName and Namespace

CHANGELOG.md

@@ -18,6 +18,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `Assert-ElevatedUser`
   - Add new parameter `ErrorMessage` to allow custom error messages.
+- `ConvertTo-CimInstance`
+  - Add parameters for `ClassName` and `Namespace` for custom values. Fixes [#128](https://github.com/dsccommunity/DscResource.Common/issues/128)
 
 ### Fixed
 

source/Public/ConvertTo-CimInstance.ps1

@@ -10,6 +10,16 @@
     .PARAMETER Hashtable
         A hashtable with the values to convert.
 
+    .PARAMETER ClassName
+        The ClassName of the CimInstance to create.
+
+        Default value is to 'MSFT_KeyValuePair'.
+
+    .PARAMETER Namespace
+        The Namespace of the CimInstance to create.
+
+        Default value is to 'root/microsoft/Windows/DesiredStateConfiguration'.
+
     .OUTPUTS
         System.Object[]
 
@@ -29,16 +39,26 @@ function ConvertTo-CimInstance
     [OutputType([System.Object[]])]
     param
     (
-        [Parameter(Mandatory = $true, ValueFromPipeline = $true, ParameterSetName = 'Hashtable')]
+        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
         [System.Collections.Hashtable]
-        $Hashtable
+        $Hashtable,
+
+        [Parameter()]
+        [ValidateNotNullOrEmpty()]
+        [System.String]
+        $ClassName = 'MSFT_KeyValuePair',
+
+        [Parameter()]
+        [ValidateNotNullOrEmpty()]
+        [System.String]
+        $Namespace = 'root/microsoft/Windows/DesiredStateConfiguration'
     )
 
     process
     {
         foreach ($item in $Hashtable.GetEnumerator())
         {
-            New-CimInstance -ClassName 'MSFT_KeyValuePair' -Namespace 'root/microsoft/Windows/DesiredStateConfiguration' -Property @{
+            New-CimInstance -ClassName $ClassName -Namespace $Namespace -Property @{
                 Key   = $item.Key
                 Value = if ($item.Value -is [array])
                 {

tests/Unit/Public/ConvertTo-CimInstance.Tests.ps1

@@ -55,33 +55,88 @@ Describe 'ConvertTo-CimInstance' -Skip:(-not ($IsWindows -or $PSEdition -eq 'Des
         }
     }
 
-    Context 'When the array contains the expected record count' {
-        It 'Should not throw exception' {
-            {
-                $script:result = [Microsoft.Management.Infrastructure.CimInstance[]] (
-                    $hashtable | ConvertTo-CimInstance
-                )
-            } | Should -Not -Throw
-        }
+    Context 'When parameters ''ClassName'' and ''Namespace'' are not supplied' {
+        Context 'When the array contains the expected record count' {
+            It 'Should not throw exception' {
+                {
+                    $script:result = [Microsoft.Management.Infrastructure.CimInstance[]] (
+                        $hashtable | ConvertTo-CimInstance
+                    )
+                } | Should -Not -Throw
+            }
 
-        It "Should record count should be $($hashTable.Count)" {
-            $script:result.Count | Should -Be $hashtable.Count
-        }
+            It 'Should record count should be correct' {
+                $script:result.Count | Should -Be $hashtable.Count
+            }
 
-        It 'Should return result of type CimInstance[]' {
-            $script:result.GetType().Name | Should -Be 'CimInstance[]'
-        }
+            It 'Should return result of type CimInstance[]' {
+                $script:result.GetType().Name | Should -Be 'CimInstance[]'
+            }
 
-        It 'Should return value "k1" in the CimInstance array should be "v1"' {
-            ($script:result | Where-Object Key -eq k1).Value | Should -Be 'v1'
-        }
+            It 'Should return value "k1" in the CimInstance array should be "v1"' {
+                ($script:result | Where-Object Key -eq k1).Value | Should -Be 'v1'
+            }
 
-        It 'Should return value "k2" in the CimInstance array should be "100"' {
-            ($script:result | Where-Object Key -eq k2).Value | Should -Be 100
+            It 'Should return value "k2" in the CimInstance array should be "100"' {
+                ($script:result | Where-Object Key -eq k2).Value | Should -Be 100
+            }
+
+            It 'Should return value "k3" in the CimInstance array should be "1,2,3"' {
+                ($script:result | Where-Object Key -eq k3).Value | Should -Be '1,2,3'
+            }
+
+            It 'Should be the correct ''ClassName''' {
+                $script:result.CimSystemProperties.ClassName[0] | Should -Be 'MSFT_KeyValuePair'
+            }
+
+            It 'Should be the correct ''Namespace''' {
+                $script:result.CimSystemProperties.Namespace[0] | Should -Be 'root/microsoft/Windows/DesiredStateConfiguration'
+            }
         }
+    }
 
-        It 'Should return value "k3" in the CimInstance array should be "1,2,3"' {
-            ($script:result | Where-Object Key -eq k3).Value | Should -Be '1,2,3'
+    Context 'When parameters ''ClassName'' and ''Namespace'' are supplied' {
+        Context 'When the array contains the expected record count' {
+            It 'Should not throw exception' {
+                $mockCimInstanceParams = @{
+                    ClassName = 'MSFT_TaskNamedValue'
+                    Namespace = 'Root/Microsoft/Windows/TaskScheduler'
+                }
+
+                {
+                    $script:result = [Microsoft.Management.Infrastructure.CimInstance[]] (
+                        $hashtable | ConvertTo-CimInstance @mockCimInstanceParams
+                    )
+                } | Should -Not -Throw
+            }
+
+            It 'Should record count should be correct' {
+                $script:result.Count | Should -Be $hashtable.Count
+            }
+
+            It 'Should return result of type CimInstance[]' {
+                $script:result.GetType().Name | Should -Be 'CimInstance[]'
+            }
+
+            It 'Should return value "k1" in the CimInstance array should be "v1"' {
+                ($script:result | Where-Object Key -eq k1).Value | Should -Be 'v1'
+            }
+
+            It 'Should return value "k2" in the CimInstance array should be "100"' {
+                ($script:result | Where-Object Key -eq k2).Value | Should -Be 100
+            }
+
+            It 'Should return value "k3" in the CimInstance array should be "1,2,3"' {
+                ($script:result | Where-Object Key -eq k3).Value | Should -Be '1,2,3'
+            }
+
+            It 'Should be the correct ''ClassName''' {
+                $script:result.CimSystemProperties.ClassName[0] | Should -Be 'MSFT_TaskNamedValue'
+            }
+
+            It 'Should be the correct ''Namespace''' {
+                $script:result.CimSystemProperties.Namespace[0] | Should -Be 'Root/Microsoft/Windows/TaskScheduler'
+            }
         }
     }
 }