Expand test coverage.

app/Import/Prerequisites/SpectrePrerequisites.php

@@ -35,6 +35,16 @@ class SpectrePrerequisites implements PrerequisitesInterface
     /** @var User The current user */
     private $user;
 
+    /**
+     * SpectrePrerequisites constructor.
+     */
+    public function __construct()
+    {
+        if ('testing' === config('app.env')) {
+            Log::warning(sprintf('%s should not be instantiated in the TEST environment!', get_class($this)));
+        }
+    }
+
     /**
      * Returns view name that allows user to fill in prerequisites.
      *