fix notification chanels and more tests (#108)

* fix notification chanels and more tests

* fix code style

tests/Unit/SSHCommands/Supervisor/InstallSupervisorCommandTest.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Tests\Unit\SSHCommands\Supervisor;
+
+use App\SSHCommands\Supervisor\InstallSupervisorCommand;
+use Tests\TestCase;
+
+class InstallSupervisorCommandTest extends TestCase
+{
+    public function test_generate_command()
+    {
+        $command = new InstallSupervisorCommand();
+
+        $expected = <<<'EOD'
+        sudo DEBIAN_FRONTEND=noninteractive apt-get install supervisor -y
+
+        sudo service supervisor enable
+
+        sudo service supervisor start
+        EOD;
+
+        $this->assertStringContainsString($expected, $command->content());
+    }
+}