change namespace and cleanup code

tests/Accounts/ServiceInstantiationTest.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Bitinflow\Accounts\Tests;
+
+use Bitinflow\Accounts\BitinflowAccounts;
+use Bitinflow\Accounts\Facades\BitinflowAccounts as BitinflowAccountsFacade;
+use Bitinflow\Accounts\Tests\TestCases\TestCase;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class ServiceInstantiationTest extends TestCase
+{
+
+    public function testInstance(): void
+    {
+        $this->assertInstanceOf(BitinflowAccounts::class, app(BitinflowAccounts::class));
+    }
+
+    public function testFacade(): void
+    {
+        $this->assertInstanceOf(BitinflowAccounts::class, BitinflowAccountsFacade::getFacadeRoot());
+    }
+}