Integration Tests for all Providers (#1)

Fixed FileProvider returning an illegal index.

Now working with docker secrets.

Started implementing drone

Reviewed-on: #1
Co-Authored-By: Abel Hoogeveen <abel@i15.nl>
Co-Committed-By: Abel Hoogeveen <abel@i15.nl>

.drone.yml

@@ -0,0 +1,41 @@
+kind: pipeline
+type: docker
+name: test
+
+services:
+  - name: cache
+    image: redis
+
+steps:
+  - name: composer
+    image: composer:latest
+    commands:
+      - composer install
+
+  - name: dummyprovidertest
+    image: registry.i15.nl/i15/fuzephp:7.4-alpine
+    commands:
+      - docker-php-ext-enable xdebug
+      - vendor/bin/phpunit -c test/phpunit.xml
+    environment:
+      OBJECTSTORAGE_PROVIDER: DummyProvider
+
+  - name: fileprovidertest
+    image: registry.i15.nl/i15/fuzephp:7.4-alpine
+    commands:
+      - docker-php-ext-enable xdebug
+      - vendor/bin/phpunit -c test/phpunit.xml
+    environment:
+      OBJECTSTORAGE_PROVIDER: FileProvider
+
+  - name: redisprovidertest
+    image: registry.i15.nl/i15/fuzephp:7.4-alpine
+    commands:
+      - docker-php-ext-enable xdebug
+      - vendor/bin/phpunit -c test/phpunit.xml
+    environment:
+      OBJECTSTORAGE_PROVIDER: RedisProvider
+      OBJECTSTORAGE_REDIS_HOST: cache
+
+image_pull_secrets:
+  - dockerconfig

src/FuzeWorks/ObjectStorage/Provider/FileProvider.php

@@ -114,7 +114,11 @@ class FileProvider implements iObjectStorageProvider
 
     public function getIndex(): array
     {
-        return $this->index;
+        $out = [];
+        foreach ($this->index as $key => $val)
+            $out[] = $key;
+
+        return $out;
     }
 
     public function getItem(string $key)