Tests for the CSV import fix

#1007

app/Services/AirportService.php

@@ -101,7 +101,7 @@ class AirportService extends Service
         }
 
         // Don't lookup the airport, so just add in something generic
-        if (!setting('general.auto_airport_lookup')) {
+        if (!setting('general.auto_airport_lookup', false)) {
             $airport = new Airport([
                 'id'   => $icao,
                 'icao' => $icao,

app/Services/ImportExport/FlightImporter.php

@@ -51,8 +51,13 @@ class FlightImporter extends ImportExport
         'fields'               => 'nullable',
     ];
 
+    /** @var AirportService */
     private $airportSvc;
+
+    /** @var FareService */
     private $fareSvc;
+
+    /** @var FlightService  */
     private $flightSvc;
 
     /**

app/Services/ImportService.php

@@ -117,12 +117,7 @@ class ImportService extends Service
 
             // turn it into a collection and run some filtering
             $row = collect($row)->map(function ($val, $index) {
-                $val = trim($val);
-                if ($val === '') {
-                    return;
-                }
-
-                return $val;
+                return trim($val);
             })->toArray();
 
             // Try to validate