Apply fixes from StyleCI

src/Writing/PostmanCollectionWriter.php

@@ -50,7 +50,7 @@ class PostmanCollectionWriter
                     'name' => $groupName,
                     'description' => '',
                     'item' => $routes->map(function ($route) {
-                        $mode = "raw";
+                        $mode = 'raw';
 
                         return [
                             'name' => $route['metadata']['title'] != '' ? $route['metadata']['title'] : url($route['uri']),
@@ -74,7 +74,7 @@ class PostmanCollectionWriter
                                     ->values()->all(),
                                 'body' => [
                                     'mode' => $mode,
-                                    $mode => json_encode($route['cleanBodyParameters'], JSON_PRETTY_PRINT)
+                                    $mode => json_encode($route['cleanBodyParameters'], JSON_PRETTY_PRINT),
                                 ],
                                 'description' => $route['metadata']['description'],
                                 'response' => [],

tests/GenerateDocumentationTest.php

@@ -292,7 +292,7 @@ class GenerateDocumentationTest extends TestCase
         $generatedCollection = json_decode(file_get_contents(__DIR__.'/../public/docs/collection.json'), true);
         // The Postman ID varies from call to call; erase it to make the test data reproducible.
         $generatedCollection['info']['_postman_id'] = '';
-        $fixtureCollection = json_decode(file_get_contents(__DIR__ . '/Fixtures/collection_custom_url.json'), true);
+        $fixtureCollection = json_decode(file_get_contents(__DIR__.'/Fixtures/collection_custom_url.json'), true);
         $this->assertEquals($fixtureCollection, $generatedCollection);
     }