Fix tests broken by removal of aliases

test/powershell/NativeLinuxCommands.Tests.ps1

@@ -1,30 +1,22 @@
 Describe "NativeLinuxCommands" {
     It "Should return a type of System.Object for hostname cmdlet" {
-    (hostname).GetType().BaseType | Should Be 'System.Object'
-	(hostname).GetType().Name | Should Be String
+        (hostname).GetType().BaseType | Should Be 'System.Object'
+        (hostname).GetType().Name | Should Be String
     }
 
     It "Should have not empty Name flags set for ps object" {
-	ps | foreach-object { $_.ProcessName | Should Not BeNullOrEmpty }
+        Get-Process | foreach-object { $_.ProcessName | Should Not BeNullOrEmpty }
     }
-	
-	It "Should find Application grep" -Skip:$IsWindows {
-    (get-command grep).CommandType | Should Be Application
+
+    It "Should find Application grep" -Skip:$IsWindows {
+        (get-command grep).CommandType | Should Be Application
     }
 
     It "Should pipe to grep and get result" -Skip:$IsWindows {
-    "hello world" | grep hello | Should Be "hello world"
+        "hello world" | grep hello | Should Be "hello world"
     }
-	
-	It "Should find Application touch" -Skip:$IsWindows {
-    (get-command touch).CommandType | Should Be Application
-    }
-	
-	It "Should find Alias ls" -Skip:$IsWindows {
-    (get-command ls).CommandType | Should Be Alias
-    }
-	
-	It "Should find Function mkdir" -Skip:$IsWindows {
-    (get-command mkdir).CommandType | Should Be Function
+
+    It "Should find Application touch" -Skip:$IsWindows {
+        (get-command touch).CommandType | Should Be Application
     }
 }