fix notification chanels and more tests (#108)

* fix notification chanels and more tests

* fix code style

tests/Unit/SSHCommands/Nginx/DeleteNginxSiteCommandTest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Tests\Unit\SSHCommands\Nginx;
+
+use App\SSHCommands\Nginx\DeleteNginxSiteCommand;
+use Tests\TestCase;
+
+class DeleteNginxSiteCommandTest extends TestCase
+{
+    public function test_generate_command()
+    {
+        $command = new DeleteNginxSiteCommand('example.com', '/home/vito/example.com');
+
+        $expected = <<<'EOD'
+        rm -rf /home/vito/example.com
+
+        sudo rm /etc/nginx/sites-available/example.com
+
+        sudo rm /etc/nginx/sites-enabled/example.com
+
+        echo "Site deleted"
+        EOD;
+
+        $this->assertStringContainsString($expected, $command->content());
+    }
+}