diff --git a/.travis.yml b/.travis.yml
index 9e284ba..b77a6ba 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,6 +19,8 @@ jobs:
         # dependencies for phpstan
         - composer require --dev "symfony/symfony" "laravel/framework" "drupal/drupal"
       script:
+        # Unit test
+        - ./vendor/bin/phpunit
         # Static analyzer check
         - ./vendor/bin/phpstan analyze -c .phpstan.neon --level=4 --no-progress Bootstraps Bridges Laravel || true
         # Check the code style
diff --git a/composer.json b/composer.json
index 90577c6..4d922c5 100644
--- a/composer.json
+++ b/composer.json
@@ -7,9 +7,13 @@
         "symfony/http-kernel": "^2.6|^3.0|^4",
         "ringcentral/psr7": "^1.2"
     },
+    "require-dev": {
+        "phpunit/phpunit": "^5.7"
+    },
     "autoload": {
         "psr-4": {
-            "PHPPM\\": ""
+            "PHPPM\\": "",
+            "PHPPM\\Tests\\": "tests"
         }
     }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
new file mode 100644
index 0000000..6bb5742
--- /dev/null
+++ b/phpunit.xml.dist
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         bootstrap="tests/bootstrap.php"
+>
+
+    <testsuites>
+        <testsuite name="PHP-PM-HttpKernel Test Suite">
+            <directory>tests/</directory>
+        </testsuite>
+    </testsuites>
+
+</phpunit>
\ No newline at end of file
diff --git a/tests/HttpKernelTest.php b/tests/HttpKernelTest.php
new file mode 100644
index 0000000..468f134
--- /dev/null
+++ b/tests/HttpKernelTest.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace PHPPM\Tests;
+
+use PHPUnit\Framework\TestCase;
+use PHPPM\Bridges\HttpKernel;
+use Psr\Http\Message\ServerRequestInterface;
+
+class HttpKernelTest extends TestCase
+{
+    /**
+     * @runInSeparateProcess
+     */
+    public function testNoBootstrap()
+    {
+        $bridge = new HttpKernel();
+        $request = $this
+            ->getMockBuilder(ServerRequestInterface::class)
+            ->getMock();
+        $response = $bridge->handle($request);
+        $this->assertEquals(500, $response->getStatusCode());
+        $this->assertEquals('Application not configured during bootstrap', (string)$response->getBody());
+    }
+}
diff --git a/tests/SymfonyBootstrapTest.php b/tests/SymfonyBootstrapTest.php
new file mode 100644
index 0000000..ef5ad13
--- /dev/null
+++ b/tests/SymfonyBootstrapTest.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace PHPPM\Tests;
+
+use PHPUnit\Framework\TestCase;
+use PHPPM\Bridges\HttpKernel;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\UploadedFileInterface;
+
+class SymfonyBootstrapTest extends TestCase
+{
+
+    /**
+     * @runInSeparateProcess
+     */
+    public function testGetRequest()
+    {
+        putenv('APP_KERNEL_NAMESPACE=PHPPM\\Tests\\SymfonyMocks\\');
+        $bridge = new HttpKernel();
+        $bridge->bootstrap('Symfony', 'test', true);
+
+        $request = $this->getMockBuilder(ServerRequestInterface::class)->getMock();
+        $request->method('getHeader')->with('Cookie')->willReturn([]);
+        $request->method('getQueryParams')->willReturn([]);
+        $request->method('getUploadedFiles')->willReturn([]);
+        $request->method('getMethod')->willReturn('GET');
+
+        $response = $bridge->handle($request);
+        $this->assertEquals(200, $response->getStatusCode());
+        $this->assertEquals('Success', (string)$response->getBody());
+    }
+
+    /**
+     * @runInSeparateProcess
+     */
+    public function testFileUpload()
+    {
+        putenv('APP_KERNEL_NAMESPACE=PHPPM\\Tests\\SymfonyMocks\\');
+        $bridge = new HttpKernel();
+        $bridge->bootstrap('Symfony', 'test', true);
+
+        $fileOK = $this->getMockBuilder(UploadedFileInterface::class)->getMock();
+        $fileOK->method('getClientFilename')->willReturn('testOK.pdf');
+        $fileOK->method('getClientMediaType')->willReturn('pdf');
+        $fileOK->method('getSize')->willReturn(1000);
+        $fileOK->method('getError')->willReturn(UPLOAD_ERR_OK);
+
+        $fileErr = $this->getMockBuilder(UploadedFileInterface::class)->getMock();
+        $fileErr->method('getClientFilename')->willReturn('testErr.pdf');
+        $fileErr->method('getClientMediaType')->willReturn('pdf');
+        $fileErr->method('getSize')->willReturn(0);
+        $fileErr->method('getError')->willReturn(UPLOAD_ERR_NO_FILE);
+
+        $request = $this->getMockBuilder(ServerRequestInterface::class)->getMock();
+        $request->method('getHeader')->with('Cookie')->willReturn([]);
+        $request->method('getQueryParams')->willReturn([]);
+        $request->method('getUploadedFiles')->willReturn([$fileOK, $fileErr]);
+        $request->method('getMethod')->willReturn('POST');
+
+        $response = $bridge->handle($request);
+        $this->assertEquals(201, $response->getStatusCode());
+        $this->assertEquals('Uploaded files: testOK.pdf,NULL', (string)$response->getBody());
+    }
+
+    /**
+     * @runInSeparateProcess
+     */
+    public function testPostJSON()
+    {
+        putenv('APP_KERNEL_NAMESPACE=PHPPM\\Tests\\SymfonyMocks\\');
+        $bridge = new HttpKernel();
+        $bridge->bootstrap('Symfony', 'test', true);
+
+        $_SERVER["CONTENT_TYPE"] = 'application/json';
+        $request = $this->getMockBuilder(ServerRequestInterface::class)->getMock();
+        $request->method('getHeader')->with('Cookie')->willReturn([]);
+        $request->method('getQueryParams')->willReturn([]);
+        $request->method('getUploadedFiles')->willReturn([]);
+        $request->method('getBody')->willReturn('{"some_json_array":[{"map1":"value1"},{"map2":"value2"}]}');
+        $request->method('getMethod')->willReturn('POST');
+
+        $response = $bridge->handle($request);
+        $this->assertEquals(201, $response->getStatusCode());
+        $this->assertEquals('Received JSON: {"some_json_array":[{"map1":"value1"},{"map2":"value2"}]}', (string)$response->getBody());
+    }
+}
diff --git a/tests/SymfonyMocks/Container.php b/tests/SymfonyMocks/Container.php
new file mode 100644
index 0000000..9f27388
--- /dev/null
+++ b/tests/SymfonyMocks/Container.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace PHPPM\Tests\SymfonyMocks;
+
+class Container
+{
+    public function has($service)
+    {
+        return false;
+    }
+}
diff --git a/tests/SymfonyMocks/Kernel.php b/tests/SymfonyMocks/Kernel.php
new file mode 100644
index 0000000..6e1c75e
--- /dev/null
+++ b/tests/SymfonyMocks/Kernel.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace PHPPM\Tests\SymfonyMocks;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class Kernel
+{
+    private $bundlesInitialized = false;
+    private $containerInitialized = false;
+
+    public function __construct($env, $debug)
+    {
+    }
+
+    public function initializeBundles()
+    {
+        $this->bundlesInitialized = true;
+    }
+
+    public function initializeContainer()
+    {
+        $this->containerInitialized = true;
+    }
+
+    public function getBundles()
+    {
+        if (!$this->bundlesInitialized) {
+            throw new \Exception('Bundles not initialized');
+        }
+
+        return [];
+    }
+
+    public function getContainer()
+    {
+        if (!$this->containerInitialized) {
+            throw new \Exception('Container not initialized');
+        }
+
+        return new Container();
+    }
+
+    public function handle(Request $request)
+    {
+        if (!$this->bundlesInitialized) {
+            throw new \Exception('Bundles not initialized');
+        }
+        if (!$this->containerInitialized) {
+            throw new \Exception('Container not initialized');
+        }
+
+        if ($request->getMethod() == 'POST') {
+            if (count($request->files->all()) > 0) {
+                $mappedFileNames = array_map(function ($f) {
+                    if (!isset($f)) {
+                        return 'NULL';
+                    }
+                    return $f->getClientOriginalName();
+                }, $request->files->all());
+                return new Response('Uploaded files: '.implode(',', $mappedFileNames), 201);
+            }
+            if ($request->getContentType() == 'json') {
+                $body = json_decode($request->getContent(), true);
+                if ($request->getContent() == null || !$body) {
+                    throw new \Exception('Invalid JSON body');
+                }
+                return new Response('Received JSON: '.$request->getContent(), 201);
+            }
+        } elseif ($request->getMethod() == 'GET') {
+            // Simple get request
+            return new Response('Success', 200);
+        }
+    }
+}
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..0ec8857
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,3 @@
+<?php
+
+require __DIR__ . ' /../vendor/autoload.php';