Rework doctor command

tests/SPC/doctor/CheckListHandlerTest.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\Tests\doctor;
+
+use PHPUnit\Framework\TestCase;
+use SPC\doctor\CheckListHandler;
+
+/**
+ * @internal
+ */
+final class CheckListHandlerTest extends TestCase
+{
+    public function testRunChecksReturnsListOfCheck(): void
+    {
+        $list = new CheckListHandler();
+
+        $this->assertCount(6, $list->runChecks());
+    }
+}