Add Unit Test for Write-Progress

test/powershell/Write-Progress.Tests.ps1

@@ -0,0 +1,45 @@
+Describe "Write-Progress DRT Unit Tests" -Tags DRT{
+    It "Should be able to throw exception when missing mandatory parameters" {
+        try
+        {
+            Write-Progress $null
+            Throw "Execution OK"
+        }
+        catch
+        {
+            $_.FullyQualifiedErrorId | Should Be 'ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.WriteProgressCommand'
+        }
+    }
+
+    It "Should be able to throw exception when running Write-Progress with bad percentage" {
+        try
+        {
+            write-progress -activity 'myactivity' -status 'mystatus' -percent 101
+            Throw "Execution OK"
+        }
+        catch
+        {
+            $_.FullyQualifiedErrorId | Should Be 'ParameterArgumentValidationError,Microsoft.PowerShell.Commands.WriteProgressCommand'
+        }
+    }
+
+    It "Should be able to throw exception when running Write-Progress with bad parent id " {
+        try
+        {
+            write-progress -activity 'myactivity' -status 'mystatus' -id 1 -parentid -2
+            Throw "Execution OK"
+        }
+        catch
+        {
+            $_.FullyQualifiedErrorId | Should Be 'ParameterArgumentValidationError,Microsoft.PowerShell.Commands.WriteProgressCommand'
+        }
+    }
+
+    It "all mandatory params works" {
+        { write-progress -activity 'myactivity' -status 'mystatus' } | Should Not Throw 
+    }
+
+    It "all params works" {
+        { write-progress -activity 'myactivity' -status 'mystatus' -id 1 -parentId 2 -completed:$false -current 'current' -sec 1 -percent 1 } | Should Not Throw 
+    }
+}