add tests for Error message

Author: alfantp

src/ServiceManagement/ManagedCache/Commands.ManagedCache.Test/ScenarioTests/ManagedCacheTests.cs

@@ -50,5 +50,12 @@ public void TestManagedCacheNamedCacheDoNotExists()
         {
             this.RunPowerShellTest("Test-ManagedCacheNamedCacheDoNotExists");
         }
+
+        [Fact]
+        [Trait(Category.AcceptanceType, Category.CheckIn)]
+        public void TestRetirementWarningMessage()
+        {
+            this.RunPowerShellTest("Test-RetirementWarningMessage");
+        }
     }
 }

src/ServiceManagement/ManagedCache/Commands.ManagedCache.Test/ScenarioTests/ManagedCacheTests.ps1

@@ -54,7 +54,7 @@ function Test-ListLocationsSupportCaching
 {
     $allLocations = Get-AzureManagedCacheLocation
 
-    Assert-AreNotEqual 0 $allLocations.Count
+	Assert-AreNotEqual 0 $allLocations.Count
 
     $found = $FALSE
     foreach ($location in $allLocations)
@@ -68,6 +68,30 @@ function Test-ListLocationsSupportCaching
     Assert-True {$found}
 }
 
+
+########################## Cache Retirement Warning message test  #############################
+<#
+.SYNOPSIS
+List locations that support managed caching service
+#>
+function Test-RetirementWarningMessage
+{
+	$datetime = Get-Date            
+	$datetime.ToUniversalTime()
+	$cacheRetired = $datetime -gt "2016-12-01 00:00:00Z"
+    $allLocations = Get-AzureManagedCacheLocation
+    $warningText =  ""
+	if($cacheRetired)
+	{
+		$warningText =  "The Azure Managed Cache Service has been retired as of"
+	}
+	else
+	{
+		$warningText =  "The Azure Managed Cache Service will be retired on"
+	}
+    Assert-ThrowsContains {Get-AzureManagedCacheLocation} $warningText
+}
+
 ########################## Managed Cache (Named cache) Scenario Tests #############################
 <#
 .SYNOPSIS