Added tests for Import feature

app/Models/Asset.php

@@ -43,16 +43,16 @@ class Asset extends Depreciable
 
     /**
      * Run after the checkout acceptance was declined by the user
-     * 
+     *
      * @param  User   $acceptedBy
      * @param  string $signature
-     */ 
+     */
     public function declinedCheckout(User $declinedBy, $signature)
     {
       $this->assigned_to = null;
       $this->assigned_type = null;
-      $this->accepted = null;      
-      $this->save();        
+      $this->accepted = null;
+      $this->save();
     }
 
     /**
@@ -369,7 +369,7 @@ class Asset extends Depreciable
         if ($this->save()) {
             if (is_int($admin)) {
                 $checkedOutBy = User::findOrFail($admin);
-            } elseif (get_class($admin) === \App\Models\User::class) {
+            } elseif ($admin && get_class($admin) === \App\Models\User::class) {
                 $checkedOutBy = $admin;
             } else {
                 $checkedOutBy = auth()->user();
@@ -1695,7 +1695,7 @@ class Asset extends Depreciable
                         });
                     });
                 }
-            
+
 
             /**
              * THIS CLUNKY BIT IS VERY IMPORTANT
@@ -1716,7 +1716,7 @@ class Asset extends Depreciable
              * assets.location would fail, as that field doesn't exist -- plus we're already searching
              * against those relationships earlier in this method.
              *
-             * - snipe 
+             * - snipe
              *
              */