Add some additional test coverage and clean up modification service and suspension service

tests/Integration/Services/Servers/SuspensionServiceTest.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace Pterodactyl\Tests\Integration\Services\Servers;
+
+use Mockery;
+use InvalidArgumentException;
+use Pterodactyl\Services\Servers\SuspensionService;
+use Pterodactyl\Tests\Integration\IntegrationTestCase;
+use Pterodactyl\Repositories\Wings\DaemonServerRepository;
+
+class SuspensionServiceTest extends IntegrationTestCase
+{
+    /** @var \Mockery\MockInterface */
+    private $repository;
+
+    /**
+     * Setup test instance.
+     */
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->repository = Mockery::mock(DaemonServerRepository::class);
+        $this->app->instance(DaemonServerRepository::class, $this->repository);
+    }
+
+    public function testServerIsSuspendedAndUnsuspended()
+    {
+        $server = $this->createServerModel(['suspended' => false]);
+
+        $this->repository->expects('setServer')->twice()->andReturnSelf();
+        $this->repository->expects('suspend')->with(false)->andReturnUndefined();
+
+        $this->getService()->toggle($server, SuspensionService::ACTION_SUSPEND);
+
+        $server->refresh();
+        $this->assertTrue($server->suspended);
+
+        $this->repository->expects('suspend')->with(true)->andReturnUndefined();
+
+        $this->getService()->toggle($server, SuspensionService::ACTION_UNSUSPEND);
+
+        $server->refresh();
+        $this->assertFalse($server->suspended);
+    }
+
+    public function testNoActionIsTakenIfSuspensionStatusIsUnchanged()
+    {
+        $server = $this->createServerModel(['suspended' => false]);
+
+        $this->getService()->toggle($server, SuspensionService::ACTION_UNSUSPEND);
+
+        $server->refresh();
+        $this->assertFalse($server->suspended);
+
+        $server->update(['suspended' => true]);
+        $this->getService()->toggle($server, SuspensionService::ACTION_SUSPEND);
+
+        $server->refresh();
+        $this->assertTrue($server->suspended);
+    }
+
+    public function testExceptionIsThrownIfInvalidActionsArePassed()
+    {
+        $server = $this->createServerModel();
+
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('Expected one of: "suspend", "unsuspend". Got: "foo"');
+
+        $this->getService()->toggle($server, 'foo');
+    }
+
+    /**
+     * @return \Pterodactyl\Services\Servers\SuspensionService
+     */
+    private function getService()
+    {
+        return $this->app->make(SuspensionService::class);
+    }
+}