feat(#99): add test for Get-NovaCliConsoleReadKeyReader functionality

- verify default console read delegate returns correct type
- ensure delegate output matches expected format

Author: stiwicourage

tests/CoverageGaps.Cli.Tests.ps1

@@ -852,6 +852,15 @@ Describe 'Coverage gaps for CLI and installed-version internals' {
         }
     }
 
+    It 'Get-NovaCliConsoleReadKeyReader returns the default console read delegate' {
+        InModuleScope $script:moduleName {
+            $reader = Get-NovaCliConsoleReadKeyReader
+
+            $reader | Should -BeOfType 'scriptblock'
+            ($reader.ToString()).Trim() | Should -Be '[Console]::ReadKey($true)'
+        }
+    }
+
     It 'Invoke-NovaCliConsoleReadKey invokes the shared console reader delegate' {
         InModuleScope $script:moduleName {
             Mock Get-NovaCliConsoleReadKeyReader {