test suite was not recognizing test file

src/pester-tests/Test-Get-Alias.Tests.ps1

@@ -1,15 +1,14 @@
 $here = Split-Path -Parent $MyInvocation.MyCommand.Path
-$sut = "test-" + (Split-Path -Leaf $MyInvocation.MyCommand.Path).Replace(".Tests.", ".")
+$sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path).Replace(".Tests.", ".")
 . "$here\$sut"
 
 Describe "Get-Alias" {
-    It "should return 3 objects" {
+    It "should return an array of 3 objects" {
 		$val =  Microsoft.PowerShell.Utility\Get-Alias a*
         $val.CommandType | Should Not BeNullOrEmpty
-        $val.Name | Should Not BeNullOrEmpty
-        $val.ModuleName | Should BeNullOrEmpty
+        $val.Name 	 | Should Not BeNullOrEmpty
+        $val.ModuleName  | Should BeNullOrEmpty
 
-        $val.Name[0] | Should Be "ac"
-        $val.Name[1] | Should Be "asnp"
+        $val.GetType().BaseType.Name | Should Be "Array"
     }
 }

src/pester-tests/Test-Get-Alias.ps1

@@ -0,0 +1,3 @@
+function test-Get-Alias{
+    return Get-Alias a*
+}