Created PreviewGenerator module

module/PreviewGenerator/test/ConfigProviderTest.php

@@ -0,0 +1,26 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\PreviewGenerator;
+
+use PHPUnit\Framework\TestCase;
+use Shlinkio\Shlink\PreviewGenerator\ConfigProvider;
+
+class ConfigProviderTest extends TestCase
+{
+    /** @var ConfigProvider */
+    private $configProvider;
+
+    public function setUp(): void
+    {
+        $this->configProvider = new ConfigProvider();
+    }
+
+    /** @test */
+    public function configIsReturned(): void
+    {
+        $config = ($this->configProvider)();
+
+        $this->assertArrayHasKey('dependencies', $config);
+    }
+}