Fix tests for new datatypes

tests/AcarsTest.php

@@ -348,11 +348,9 @@ class AcarsTest extends TestCase
         $response->assertStatus(400);
 
         # Post an ACARS update
-        $acars = factory(App\Models\Acars::class)->make(
-            [
-                'id' => null,
-            ]
-        )->toArray();
+        $acars = factory(App\Models\Acars::class)->make(['pirep_id' => $pirep_id])->toArray();
+
+        $acars = $this->transformData($acars);
 
         $update = ['positions' => [$acars]];
         $response = $this->post($uri, $update);

tests/TestCase.php

@@ -116,9 +116,13 @@ class TestCase extends Illuminate\Foundation\Testing\TestCase
      * @param array $data
      * @return array
      */
-    protected function transformData(array $data): array
+    protected function transformData($data)
     {
         foreach($data as $key => $value) {
+            if(is_object($value)) {
+                $value = $this->transformData($value);
+            }
+
             if (is_subclass_of($value, App\Interfaces\Unit::class)) {
                 $data[$key] = $value->__toString();
             }