Merge pull request #908 from PowerShell/GetUniqueTests

Add Unit Test for Get-Unique

test/powershell/Get-Unique.Tests.ps1

@@ -1,3 +1,22 @@
+Describe "Get-Unique DRT Unit Tests" -Tags DRT{
+    It "Command get-unique works with AsString switch" {
+        $inputArray = "aa","aa","Aa","ba","BA","BA"
+        $results = $inputArray | Get-Unique -AsString 
+        
+        $results.Length | Should Be 4 
+               
+        $results[0] | Should Be "aa"
+        $results[1] | Should Be "Aa"
+        $results[2] | Should Be "ba"
+        $results[3] | Should Be "BA"
+
+        $results[0].GetType().FullName | Should be System.String
+        $results[1].GetType().FullName | Should be System.String
+        $results[2].GetType().FullName | Should be System.String
+        $results[3].GetType().FullName | Should be System.String
+    }
+}
+
 Describe "Get-Unique" {
     $sortedList1 = 1,2,2,3,3,4,5
     It "Should be able to use the Get-Unique cmdlet without error with inputObject switch" {
@@ -59,12 +78,12 @@ Describe "Get-Unique" {
 	$collection     = "a", "b", "b", "d"
 	$expectedOutput = "a", "b", "d"
 
-	$actual = Get-Unique -InputObject $collection
+	$actual = $collection | Get-Unique
 
-	$actual.Length | Should Be $collection.Length
+	$actual.Length | Should Be $expectedOutput.Length
 
-	$actual[0] | Should Be $collection[0]
-	$actual[1] | Should Be $collection[1]
-	$actual[2] | Should Be $collection[2]
+	$actual[0] | Should Be $expectedOutput[0]
+	$actual[1] | Should Be $expectedOutput[1]
+	$actual[2] | Should Be $expectedOutput[2]
     }
 }