code style fix

add command tests

tests/Feature/SSHCommands/Nginx/ChangeNginxPHPVersionCommandTest.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Tests\Feature\SSHCommands\Nginx;
+
+use App\SSHCommands\Nginx\ChangeNginxPHPVersionCommand;
+use Tests\TestCase;
+
+class ChangeNginxPHPVersionCommandTest extends TestCase
+{
+    public function test_generate_command()
+    {
+        $command = new ChangeNginxPHPVersionCommand('example.com', '7.1', '8.2');
+
+        $expected = <<<'EOD'
+        if ! sudo sed -i 's/php7.1/php8.2/g' /etc/nginx/sites-available/example.com; then
+            echo 'VITO_SSH_ERROR' && exit 1
+        fi
+
+        if ! sudo service nginx restart; then
+            echo 'VITO_SSH_ERROR' && exit 1
+        fi
+
+        echo "PHP Version Changed to 8.2"
+        EOD;
+
+        $this->assertStringContainsString($expected, $command->content());
+    }
+}