diff --git a/config/app.php b/config/app.php
index fe0a97c1..8037479b 100644
--- a/config/app.php
+++ b/config/app.php
@@ -5,5 +5,11 @@
 return [
     // Service providers
     'providers' => [
+        \Engelsystem\Logger\LoggerServiceProvider::class,
+        \Engelsystem\Exceptions\ExceptionsServiceProvider::class,
+        \Engelsystem\Config\ConfigServiceProvider::class,
+        \Engelsystem\Routing\RoutingServiceProvider::class,
+        \Engelsystem\Renderer\RendererServiceProvider::class,
+        \Engelsystem\Database\DatabaseServiceProvider::class,
     ],
 ];
diff --git a/includes/autoload.php b/includes/autoload.php
index f51f89e4..0cd9d355 100644
--- a/includes/autoload.php
+++ b/includes/autoload.php
@@ -6,4 +6,4 @@ if (!is_readable(__DIR__ . '/../vendor/autoload.php')) {
 }
 
 // Include composer autoloader
-require_once __DIR__ . '/../vendor/autoload.php';
+$loader = require __DIR__ . '/../vendor/autoload.php';
diff --git a/includes/engelsystem_provider.php b/includes/engelsystem_provider.php
index 3067ab62..48206cb6 100644
--- a/includes/engelsystem_provider.php
+++ b/includes/engelsystem_provider.php
@@ -2,14 +2,8 @@
 
 use Engelsystem\Application;
 use Engelsystem\Config\Config;
-use Engelsystem\Database\Db;
 use Engelsystem\Exceptions\Handler as ExceptionHandler;
 use Engelsystem\Http\Request;
-use Engelsystem\Logger\EngelsystemLogger;
-use Engelsystem\Renderer\HtmlEngine;
-use Engelsystem\Renderer\Renderer;
-use Engelsystem\Routing\UrlGenerator;
-use Psr\Log\LoggerInterface;
 use Symfony\Component\HttpFoundation\Session\Session;
 use Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage;
 use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
@@ -21,78 +15,21 @@ require_once __DIR__ . '/autoload.php';
 
 
 /**
- * Initialize the application
+ * Initialize and bootstrap the application
  */
 $app = new Application(realpath(__DIR__ . DIRECTORY_SEPARATOR . '..'));
-
-
-/**
- * Bootstrap application
- */
 $appConfig = $app->make(Config::class);
-$appConfig->set(app('path.config') . '/app.php');
+$appConfig->set(require config_path('app.php'));
 $app->bootstrap($appConfig);
 
-/**
- * Load configuration
- */
-$config = new Config();
-$app->instance('config', $config);
-$config->set(require __DIR__ . '/../config/config.default.php');
-
-if (file_exists(__DIR__ . '/../config/config.php')) {
-    $config->set(array_replace_recursive(
-        $config->get(null),
-        require __DIR__ . '/../config/config.php'
-    ));
-}
-
 
 /**
  * Configure application
  */
-date_default_timezone_set($config->get('timezone'));
-
-
-/**
- * Initialize Request
- *
- * @var Request $request
- */
-$request = Request::createFromGlobals();
-$app->instance('request', $request);
-
-
-/**
- * Check for maintenance
- */
-if ($app->get('config')->get('maintenance')) {
-    echo file_get_contents(__DIR__ . '/../templates/maintenance.html');
-    die();
-}
-
-
-/**
- * Register UrlGenerator
- */
-$urlGenerator = new UrlGenerator();
-$app->instance('routing.urlGenerator', $urlGenerator);
+date_default_timezone_set($app->get('config')->get('timezone'));
 
-
-/**
- * Initialize renderer
- */
-$renderer = new Renderer();
-$app->instance('renderer', $renderer);
-$renderer->addRenderer(new HtmlEngine());
-
-
-/**
- * Register error handler
- */
-$errorHandler = new ExceptionHandler();
-$app->instance('error.handler', $errorHandler);
 if (config('environment') == 'development') {
+    $errorHandler = $app->get('error.handler');
     $errorHandler->setEnvironment(ExceptionHandler::ENV_DEVELOPMENT);
     ini_set('display_errors', true);
     error_reporting(E_ALL);
@@ -102,23 +39,21 @@ if (config('environment') == 'development') {
 
 
 /**
- * Connect to database
+ * Check for maintenance
  */
-Db::connect(
-    'mysql:host=' . config('database')['host'] . ';dbname=' . config('database')['db'] . ';charset=utf8',
-    config('database')['user'],
-    config('database')['pw']
-) || die('Error: Unable to connect to database');
-Db::getPdo()->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
-Db::getPdo()->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
+if ($app->get('config')->get('maintenance')) {
+    echo file_get_contents(__DIR__ . '/../templates/maintenance.html');
+    die();
+}
+
 
 /**
- * Init logger
+ * Initialize Request
+ *
+ * @var Request $request
  */
-$logger = new EngelsystemLogger();
-$app->instance('logger', $logger);
-$app->bind(LoggerInterface::class, 'logger');
-$app->bind(EngelsystemLogger::class, 'logger');
+$request = Request::createFromGlobals();
+$app->instance('request', $request);
 
 
 /**
diff --git a/src/Application.php b/src/Application.php
index b62b28a9..c9023c7b 100644
--- a/src/Application.php
+++ b/src/Application.php
@@ -54,7 +54,7 @@ class Application extends Container
     public function register($provider)
     {
         if (is_string($provider)) {
-            $provider = $this->get($provider);
+            $provider = $this->make($provider);
         }
 
         $this->serviceProviders[] = $provider;
diff --git a/src/Config/ConfigServiceProvider.php b/src/Config/ConfigServiceProvider.php
new file mode 100644
index 00000000..01b648df
--- /dev/null
+++ b/src/Config/ConfigServiceProvider.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Engelsystem\Config;
+
+use Engelsystem\Container\ServiceProvider;
+
+class ConfigServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $defaultConfigFile = config_path('config.default.php');
+        $configFile = config_path('config.php');
+
+        $config = $this->app->make(Config::class);
+        $this->app->instance('config', $config);
+
+        $config->set(require $defaultConfigFile);
+
+        if (file_exists($configFile)) {
+            $config->set(array_replace_recursive(
+                $config->get(null),
+                require $configFile
+            ));
+        }
+    }
+}
diff --git a/src/Database/DatabaseServiceProvider.php b/src/Database/DatabaseServiceProvider.php
new file mode 100644
index 00000000..364816cc
--- /dev/null
+++ b/src/Database/DatabaseServiceProvider.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Engelsystem\Database;
+
+use Engelsystem\Container\ServiceProvider;
+use Exception;
+use PDO;
+
+class DatabaseServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $config = $this->app->get('config');
+        Db::connect(
+            'mysql:host=' . $config->get('database')['host'] . ';dbname=' . $config->get('database')['db'] . ';charset=utf8',
+            $config->get('database')['user'],
+            $config->get('database')['pw']
+        ) || $this->exitOnError();
+
+        Db::getPdo()->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+        Db::getPdo()->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
+    }
+
+    /**
+     * @throws Exception
+     */
+    protected function exitOnError()
+    {
+        throw new Exception('Error: Unable to connect to database');
+    }
+}
diff --git a/src/Exceptions/ExceptionsServiceProvider.php b/src/Exceptions/ExceptionsServiceProvider.php
new file mode 100644
index 00000000..7755e1e7
--- /dev/null
+++ b/src/Exceptions/ExceptionsServiceProvider.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Engelsystem\Exceptions;
+
+use Engelsystem\Container\ServiceProvider;
+use Engelsystem\Exceptions\Handler as ExceptionHandler;
+
+class ExceptionsServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $errorHandler = $this->app->make(ExceptionHandler::class);
+        $this->app->instance('error.handler', $errorHandler);
+    }
+}
diff --git a/src/Logger/LoggerServiceProvider.php b/src/Logger/LoggerServiceProvider.php
new file mode 100644
index 00000000..cf22f383
--- /dev/null
+++ b/src/Logger/LoggerServiceProvider.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Engelsystem\Logger;
+
+use Engelsystem\Container\ServiceProvider;
+use Psr\Log\LoggerInterface;
+
+class LoggerServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $logger = $this->app->make(EngelsystemLogger::class);
+        $this->app->instance('logger', $logger);
+
+        $this->app->bind(LoggerInterface::class, 'logger');
+        $this->app->bind(EngelsystemLogger::class, 'logger');
+    }
+}
diff --git a/src/Renderer/RendererServiceProvider.php b/src/Renderer/RendererServiceProvider.php
new file mode 100644
index 00000000..3e8d69bc
--- /dev/null
+++ b/src/Renderer/RendererServiceProvider.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Engelsystem\Renderer;
+
+use Engelsystem\Container\ServiceProvider;
+
+class RendererServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $this->registerRenderer();
+        $this->registerHtmlEngine();
+    }
+
+    public function boot()
+    {
+        $renderer = $this->app->get('renderer');
+
+        foreach ($this->app->tagged('renderer.engine') as $engine) {
+            $renderer->addRenderer($engine);
+        }
+    }
+
+    protected function registerRenderer()
+    {
+        $renderer = $this->app->make(Renderer::class);
+        $this->app->instance('renderer', $renderer);
+    }
+
+    protected function registerHtmlEngine()
+    {
+        $htmlEngine = $this->app->make(HtmlEngine::class);
+        $this->app->instance('renderer.htmlEngine', $htmlEngine);
+        $this->app->tag('renderer.htmlEngine', ['renderer.engine']);
+    }
+}
diff --git a/src/Routing/RoutingServiceProvider.php b/src/Routing/RoutingServiceProvider.php
new file mode 100644
index 00000000..b7db1383
--- /dev/null
+++ b/src/Routing/RoutingServiceProvider.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Engelsystem\Routing;
+
+use Engelsystem\Container\ServiceProvider;
+
+class RoutingServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $urlGenerator = $this->app->make(UrlGenerator::class);
+        $this->app->instance('routing.urlGenerator', $urlGenerator);
+    }
+}
diff --git a/tests/Feature/Database/DatabaseServiceProviderConnectionTest.php b/tests/Feature/Database/DatabaseServiceProviderConnectionTest.php
new file mode 100644
index 00000000..dd1ce729
--- /dev/null
+++ b/tests/Feature/Database/DatabaseServiceProviderConnectionTest.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Engelsystem\Test\Database;
+
+use Engelsystem\Application;
+use Engelsystem\Config\Config;
+use Engelsystem\Database\DatabaseServiceProvider;
+use PHPUnit\Framework\TestCase;
+use PHPUnit_Framework_MockObject_MockObject;
+
+class DatabaseServiceProviderConnectionTest extends TestCase
+{
+    /**
+     * @covers \Engelsystem\Database\DatabaseServiceProvider::register()
+     */
+    public function testRegister()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|Config $config */
+        $config = $this->getMockBuilder(Config::class)
+            ->getMock();
+
+        /** @var PHPUnit_Framework_MockObject_MockObject|Application $app */
+        $app = $this->getMockBuilder(Application::class)
+            ->setMethods(['get'])
+            ->getMock();
+        Application::setInstance($app);
+
+        $app->expects($this->once())
+            ->method('get')
+            ->with('config')
+            ->willReturn($config);
+
+        $config->expects($this->atLeastOnce())
+            ->method('get')
+            ->with('database')
+            ->willReturn($this->getDbConfig());
+
+        $serviceProvider = new DatabaseServiceProvider($app);
+        $serviceProvider->register();
+    }
+
+    private function getDbConfig()
+    {
+        $configValues = require __DIR__ . '/../../../config/config.default.php';
+        $configFile = __DIR__ . '/../../../config/config.php';
+
+        if (file_exists($configFile)) {
+            $configValues = array_replace_recursive($configValues, require $configFile);
+        }
+
+        return $configValues['database'];
+    }
+}
diff --git a/tests/Unit/Config/ConfigServiceProviderTest.php b/tests/Unit/Config/ConfigServiceProviderTest.php
new file mode 100644
index 00000000..26128e79
--- /dev/null
+++ b/tests/Unit/Config/ConfigServiceProviderTest.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Engelsystem\Test\Config;
+
+use Engelsystem\Application;
+use Engelsystem\Config\Config;
+use Engelsystem\Config\ConfigServiceProvider;
+use PHPUnit\Framework\TestCase;
+use PHPUnit_Framework_MockObject_MockObject;
+
+class ConfigServiceProviderTest extends TestCase
+{
+    /**
+     * @covers \Engelsystem\Config\ConfigServiceProvider::register()
+     */
+    public function testRegister()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|Config $config */
+        $config = $this->getMockBuilder(Config::class)
+            ->getMock();
+
+        /** @var PHPUnit_Framework_MockObject_MockObject|Application $app */
+        $app = $this->getMockBuilder(Application::class)
+            ->setMethods(['make', 'instance', 'get'])
+            ->getMock();
+        Application::setInstance($app);
+
+        $app->expects($this->once())
+            ->method('make')
+            ->with(Config::class)
+            ->willReturn($config);
+
+        $app->expects($this->once())
+            ->method('instance')
+            ->with('config', $config);
+
+        $app->expects($this->atLeastOnce())
+            ->method('get')
+            ->with('path.config')
+            ->willReturn(__DIR__ . '/../../../config');
+
+        $config->expects($this->exactly(2))
+            ->method('set')
+            ->withAnyParameters();
+
+        $config->expects($this->once())
+            ->method('get')
+            ->with(null)
+            ->willReturn([]);
+
+        $serviceProvider = new ConfigServiceProvider($app);
+        $serviceProvider->register();
+    }
+}
diff --git a/tests/Unit/Database/DatabaseServiceProviderTest.php b/tests/Unit/Database/DatabaseServiceProviderTest.php
new file mode 100644
index 00000000..d0e3e164
--- /dev/null
+++ b/tests/Unit/Database/DatabaseServiceProviderTest.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Engelsystem\Test\Database;
+
+use Engelsystem\Application;
+use Engelsystem\Config\Config;
+use Engelsystem\Database\DatabaseServiceProvider;
+use Exception;
+use PHPUnit\Framework\TestCase;
+use PHPUnit_Framework_MockObject_MockObject;
+
+class DatabaseServiceProviderTest extends TestCase
+{
+    /**
+     * @covers \Engelsystem\Database\DatabaseServiceProvider::register()
+     * @covers \Engelsystem\Database\DatabaseServiceProvider::exitOnError()
+     */
+    public function testRegister()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|Config $config */
+        $config = $this->getMockBuilder(Config::class)
+            ->getMock();
+
+        /** @var PHPUnit_Framework_MockObject_MockObject|Application $app */
+        $app = $this->getMockBuilder(Application::class)
+            ->setMethods(['get'])
+            ->getMock();
+
+        $app->expects($this->once())
+            ->method('get')
+            ->with('config')
+            ->willReturn($config);
+
+        $config->expects($this->atLeastOnce())
+            ->method('get')
+            ->with('database')
+            ->willReturn([
+                'host' => 'localhost',
+                'db'   => 'database',
+                'user' => 'user',
+                'pw'   => 'password',
+            ]);
+
+        $serviceProvider = new DatabaseServiceProvider($app);
+        $this->expectException(Exception::class);
+
+        $serviceProvider->register();
+    }
+}
diff --git a/tests/Unit/Exceptions/ExceptionsServiceProviderTest.php b/tests/Unit/Exceptions/ExceptionsServiceProviderTest.php
new file mode 100644
index 00000000..26eddb75
--- /dev/null
+++ b/tests/Unit/Exceptions/ExceptionsServiceProviderTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Engelsystem\Test\Exceptions;
+
+use Engelsystem\Application;
+use Engelsystem\Exceptions\ExceptionsServiceProvider;
+use Engelsystem\Exceptions\Handler as ExceptionHandler;
+use PHPUnit\Framework\TestCase;
+use PHPUnit_Framework_MockObject_MockObject;
+
+class ExceptionsServiceProviderTest extends TestCase
+{
+    /**
+     * @covers \Engelsystem\Exceptions\ExceptionsServiceProvider::register()
+     */
+    public function testRegister()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|ExceptionHandler $exceptionHandler */
+        $exceptionHandler = $this->getMockBuilder(ExceptionHandler::class)
+            ->getMock();
+
+        /** @var PHPUnit_Framework_MockObject_MockObject|Application $app */
+        $app = $this->getMockBuilder(Application::class)
+            ->setMethods(['make', 'instance'])
+            ->getMock();
+
+        $app->expects($this->once())
+            ->method('make')
+            ->with(ExceptionHandler::class)
+            ->willReturn($exceptionHandler);
+
+        $app->expects($this->once())
+            ->method('instance')
+            ->with('error.handler', $exceptionHandler);
+
+        $serviceProvider = new ExceptionsServiceProvider($app);
+        $serviceProvider->register();
+    }
+}
diff --git a/tests/Unit/Logger/LoggerServiceProviderTest.php b/tests/Unit/Logger/LoggerServiceProviderTest.php
new file mode 100644
index 00000000..5143d236
--- /dev/null
+++ b/tests/Unit/Logger/LoggerServiceProviderTest.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Engelsystem\Test\Logger;
+
+use Engelsystem\Application;
+use Engelsystem\Logger\EngelsystemLogger;
+use Engelsystem\Logger\LoggerServiceProvider;
+use PHPUnit\Framework\TestCase;
+use PHPUnit_Framework_MockObject_MockObject;
+use Psr\Log\LoggerInterface;
+
+class LoggerServiceProviderTest extends TestCase
+{
+    /**
+     * @covers \Engelsystem\Logger\LoggerServiceProvider::register()
+     */
+    public function testRegister()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|EngelsystemLogger $logger */
+        $logger = $this->getMockBuilder(EngelsystemLogger::class)
+            ->getMock();
+
+        /** @var PHPUnit_Framework_MockObject_MockObject|Application $app */
+        $app = $this->getMockBuilder(Application::class)
+            ->setMethods(['make', 'instance', 'bind'])
+            ->getMock();
+
+        $app->expects($this->once())
+            ->method('make')
+            ->with(EngelsystemLogger::class)
+            ->willReturn($logger);
+
+        $app->expects($this->once())
+            ->method('instance')
+            ->with('logger', $logger);
+
+        $app->expects($this->atLeastOnce())
+            ->method('bind')
+            ->withConsecutive(
+                [LoggerInterface::class, 'logger'],
+                [EngelsystemLogger::class, 'logger']
+            );
+
+        $serviceProvider = new LoggerServiceProvider($app);
+        $serviceProvider->register();
+    }
+}
diff --git a/tests/Unit/Renderer/RendererServiceProviderTest.php b/tests/Unit/Renderer/RendererServiceProviderTest.php
new file mode 100644
index 00000000..f9044d8b
--- /dev/null
+++ b/tests/Unit/Renderer/RendererServiceProviderTest.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Engelsystem\Test\Logger;
+
+use Engelsystem\Renderer\EngineInterface;
+use Engelsystem\Renderer\HtmlEngine;
+use Engelsystem\Renderer\Renderer;
+use Engelsystem\Renderer\RendererServiceProvider;
+use Engelsystem\Test\Unit\ServiceProviderTest;
+use PHPUnit_Framework_MockObject_MockObject;
+
+class RendererServiceProviderTest extends ServiceProviderTest
+{
+    /**
+     * @covers \Engelsystem\Renderer\RendererServiceProvider::register()
+     * @covers \Engelsystem\Renderer\RendererServiceProvider::registerRenderer()
+     * @covers \Engelsystem\Renderer\RendererServiceProvider::registerHtmlEngine()
+     */
+    public function testRegister()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|Renderer $renderer */
+        $renderer = $this->getMockBuilder(Renderer::class)
+            ->getMock();
+        /** @var PHPUnit_Framework_MockObject_MockObject|HtmlEngine $htmlEngine */
+        $htmlEngine = $this->getMockBuilder(HtmlEngine::class)
+            ->getMock();
+
+        $app = $this->getApp(['make', 'instance', 'tag']);
+
+        $app->expects($this->exactly(2))
+            ->method('make')
+            ->withConsecutive(
+                [Renderer::class],
+                [HtmlEngine::class]
+            )->willReturnOnConsecutiveCalls(
+                $renderer,
+                $htmlEngine
+            );
+
+        $app->expects($this->exactly(2))
+            ->method('instance')
+            ->withConsecutive(
+                ['renderer', $renderer],
+                ['renderer.htmlEngine', $htmlEngine]
+            );
+
+        $this->setExpects($app, 'tag', ['renderer.htmlEngine', ['renderer.engine']]);
+
+        $serviceProvider = new RendererServiceProvider($app);
+        $serviceProvider->register();
+    }
+
+    /**
+     * @covers \Engelsystem\Renderer\RendererServiceProvider::boot()
+     */
+    public function testBoot()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|Renderer $renderer */
+        $renderer = $this->getMockBuilder(Renderer::class)
+            ->getMock();
+        /** @var PHPUnit_Framework_MockObject_MockObject|EngineInterface $engine1 */
+        $engine1 = $this->getMockForAbstractClass(EngineInterface::class);
+        /** @var PHPUnit_Framework_MockObject_MockObject|EngineInterface $engine2 */
+        $engine2 = $this->getMockForAbstractClass(EngineInterface::class);
+
+        $app = $this->getApp(['get', 'tagged']);
+
+        $engines = [$engine1, $engine2];
+
+        $this->setExpects($app, 'get', ['renderer'], $renderer);
+        $this->setExpects($app, 'tagged', ['renderer.engine'], $engines);
+
+        $invocation = $renderer
+            ->expects($this->exactly(count($engines)))
+            ->method('addRenderer');
+        call_user_func_array([$invocation, 'withConsecutive'], $engines);
+
+        $serviceProvider = new RendererServiceProvider($app);
+        $serviceProvider->boot();
+    }
+}
diff --git a/tests/Unit/Routing/RoutingServiceProviderTest.php b/tests/Unit/Routing/RoutingServiceProviderTest.php
new file mode 100644
index 00000000..4f1cd5fc
--- /dev/null
+++ b/tests/Unit/Routing/RoutingServiceProviderTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Engelsystem\Test\Routing;
+
+use Engelsystem\Application;
+use Engelsystem\Routing\RoutingServiceProvider;
+use Engelsystem\Routing\UrlGenerator;
+use PHPUnit\Framework\TestCase;
+use PHPUnit_Framework_MockObject_MockObject;
+
+class RoutingServiceProviderTest extends TestCase
+{
+    /**
+     * @covers \Engelsystem\Routing\RoutingServiceProvider::register()
+     */
+    public function testRegister()
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|UrlGenerator $urlGenerator */
+        $urlGenerator = $this->getMockBuilder(UrlGenerator::class)
+            ->getMock();
+
+        /** @var PHPUnit_Framework_MockObject_MockObject|Application $app */
+        $app = $this->getMockBuilder(Application::class)
+            ->setMethods(['make', 'instance'])
+            ->getMock();
+
+        $app->expects($this->once())
+            ->method('make')
+            ->with(UrlGenerator::class)
+            ->willReturn($urlGenerator);
+
+        $app->expects($this->once())
+            ->method('instance')
+            ->with('routing.urlGenerator', $urlGenerator);
+
+        $serviceProvider = new RoutingServiceProvider($app);
+        $serviceProvider->register();
+    }
+}
diff --git a/tests/Unit/ServiceProviderTest.php b/tests/Unit/ServiceProviderTest.php
new file mode 100644
index 00000000..be843742
--- /dev/null
+++ b/tests/Unit/ServiceProviderTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Engelsystem\Test\Unit;
+
+use Engelsystem\Application;
+use PHPUnit\Framework\TestCase;
+use PHPUnit_Framework_MockObject_MockObject;
+
+abstract class ServiceProviderTest extends TestCase
+{
+    /**
+     * @param array $methods
+     * @return Application|PHPUnit_Framework_MockObject_MockObject
+     */
+    protected function getApp($methods = ['make', 'instance'])
+    {
+        /** @var PHPUnit_Framework_MockObject_MockObject|Application $app */
+        return $this->getMockBuilder(Application::class)
+            ->setMethods($methods)
+            ->getMock();
+    }
+
+    /**
+     * @param PHPUnit_Framework_MockObject_MockObject $object
+     * @param string                                  $method
+     * @param array                                   $arguments
+     * @param mixed                                   $return
+     */
+    protected function setExpects($object, $method, $arguments, $return = null)
+    {
+        $invocation = $object->expects($this->once())
+            ->method($method);
+        call_user_func_array([$invocation, 'with'], $arguments);
+
+        if (!is_null($return)) {
+            $invocation->willReturn($return);
+        }
+    }
+}
diff --git a/tests/autoload.php b/tests/autoload.php
new file mode 100644
index 00000000..3168ce3d
--- /dev/null
+++ b/tests/autoload.php
@@ -0,0 +1,8 @@
+<?php
+
+use Composer\Autoload\ClassLoader;
+
+require_once __DIR__ . '/../includes/autoload.php';
+
+/** @var $loader ClassLoader */
+$loader->addPsr4('Engelsystem\\Test\\', __DIR__ . '/');