UnitTests are now located in tests directory & tiny improvements

tests/Fixtures/Attachment/Attachment.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Fixtures\Attachment;
+
+class Attachment
+{
+    /**
+     * @var string $fileName
+     */
+    public $fileName;
+
+    /**
+     * @var string $content
+     */
+    public $contentType;
+
+    /**
+     * @var string $content
+     */
+    public $content;
+
+    /**
+     * Attachment constructor.
+     *
+     * @param string $fileName
+     * @param string $contentType
+     * @param string $content
+     */
+    public function __construct($fileName, $contentType, $content)
+    {
+        $this->fileName = $fileName;
+        $this->contentType = $contentType;
+        $this->content = $content;
+    }
+}