Fixes schema collection bug (#569)

* Fixes schema collection bug

Author: cnizzardini

src/Lib/OpenApi/SchemaProperty.php

@@ -122,8 +122,11 @@ public function toArray(): array
             $vars['enum'] = array_values($vars['enum']);
         }
 
-        if (!empty($vars['items'])) {
-            $vars['items'] = (object)reset($vars['items']);
+        if (!empty($vars['items']) && $vars['type'] === 'array' && count($vars['items']) === 1) {
+            $item = reset($vars['items']);
+            if (is_array($item) && $item['type'] === 'object') {
+                $vars['items'] = (object)$item;
+            }
         }
 
         return $vars;

tests/TestCase/Lib/MediaType/GenericTest.php

@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 namespace SwaggerBake\Test\TestCase\Lib\MediaType;
 
@@ -36,7 +37,7 @@ public function setUp(): void
                 'controllers' => ['\SwaggerBakeTest\App\\'],
                 'entities' => ['\SwaggerBakeTest\App\\'],
                 'tables' => ['\SwaggerBakeTest\App\\'],
-            ]
+            ],
         ], SWAGGER_BAKE_TEST_APP);
     }
 
@@ -47,7 +48,7 @@ public function test_collection(): void
         $schema = (new Generic($swagger))->buildSchema('#/components/schemas/thing', 'array');
         $this->assertEquals(
             '#/x-swagger-bake/components/schemas/Generic-Collection',
-            $schema->getAllOf()[0]['$ref']
+            $schema->getAllOf()[0]['$ref'],
         );
         $this->assertArrayHasKey('data', $schema->getProperties());
     }
@@ -70,7 +71,7 @@ public function test_collection_with_associations(): void
                     ->setName('PostalCode')
                     ->setProperties([
                         (new SchemaProperty())->setName('id'),
-                        (new SchemaProperty())->setName('PostalCode')
+                        (new SchemaProperty())->setName('PostalCode'),
                     ]),
             ]);
 
@@ -81,8 +82,11 @@ public function test_collection_with_associations(): void
         $this->assertArrayHasKey('PostalCode', $items['properties']);
         $this->assertEquals(
             '#/x-swagger-bake/components/schemas/Generic-Collection',
-            $schema->getAllOf()[0]['$ref']
+            $schema->getAllOf()[0]['$ref'],
         );
         $this->assertArrayHasKey('data', $schema->getProperties());
+
+        $arr = json_decode(json_encode($schema->toArray()), true);
+        $this->assertArrayHasKey('Country', $arr['properties']['data']['items']['properties']);
     }
-}
+}