diff --git a/.travis.yml b/.travis.yml
index d59c90e..a727d54 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,6 +16,45 @@ jobs:
       env: SYMFONY_VERSION="5.0.*"
     - php: '7.4'
       env: SYMFONY_VERSION="5.0.*"
+    - stage: test-functional
+      php: '7.4'
+      env:
+        - SYMFONY_VERSION="3.4.*"
+        - BRANCH=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}
+      services: docker
+      before_script:
+        - wget https://get.symfony.com/cli/installer -O - | bash
+        - sudo mv /home/travis/.symfony/bin/symfony /usr/local/bin/symfony
+      script:
+        - composer run-script phpunit-functional
+      after_success:
+        - docker ps
+    - stage: test-functional
+      php: '7.4'
+      env:
+        - SYMFONY_VERSION="4.4.*"
+        - BRANCH=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}
+      services: docker
+      before_script:
+        - wget https://get.symfony.com/cli/installer -O - | bash
+        - sudo mv /home/travis/.symfony/bin/symfony /usr/local/bin/symfony
+      script:
+        - composer run-script phpunit-functional
+      after_success:
+        - docker ps
+    - stage: test-functional
+      php: '7.4'
+      env:
+        - SYMFONY_VERSION="5.0.*"
+        - BRANCH=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}
+      services: docker
+      before_script:
+        - wget https://get.symfony.com/cli/installer -O - | bash
+        - sudo mv /home/travis/.symfony/bin/symfony /usr/local/bin/symfony
+      script:
+        - composer run-script phpunit-functional
+      after_success:
+        - docker ps
 
 before_install:
   - composer global require hirak/prestissimo
diff --git a/README.md b/README.md
index 06ffba3..0fe5649 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,13 @@
 # auxmoney OpentracingBundle - Jaeger
 
+![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/auxmoney/OpentracingBundle-Jaeger)
+![Travis (.org)](https://img.shields.io/travis/auxmoney/OpentracingBundle-Jaeger)
+![Coveralls github](https://img.shields.io/coveralls/github/auxmoney/OpentracingBundle-Jaeger)
+![Codacy Badge](https://api.codacy.com/project/badge/Grade/dd11fb9bdbe54affb1946a03af5f432a)
+![Code Climate maintainability](https://img.shields.io/codeclimate/maintainability/auxmoney/OpentracingBundle-Jaeger)
+![Scrutinizer code quality (GitHub/Bitbucket)](https://img.shields.io/scrutinizer/quality/g/auxmoney/OpentracingBundle-Jaeger)
+![GitHub](https://img.shields.io/github/license/auxmoney/OpentracingBundle-Jaeger)
+
 This symfony bundle provides a tracer implementation for [Jaeger](https://www.jaegertracing.io/) for the [auxmoney OpentracingBundle](https://github.com/auxmoney/OpentracingBundle-core).
 
 Please have a look at [the central documentation](https://github.com/auxmoney/OpentracingBundle-core) for installation and usage instructions.
diff --git a/Tests/Functional/FunctionalTest.php b/Tests/Functional/FunctionalTest.php
new file mode 100644
index 0000000..8fa693f
--- /dev/null
+++ b/Tests/Functional/FunctionalTest.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Auxmoney\OpentracingBundle\Tests\Functional;
+
+use Symfony\Component\Process\Process;
+
+class FunctionalTest extends JaegerFunctionalTest
+{
+    public function testSuccessfulTracing(): void
+    {
+        $this->setUpTestProject('default');
+
+        $p = new Process(['symfony', 'console', 'test:jaeger'], 'build/testproject');
+        $p->mustRun();
+        $output = $p->getOutput();
+        $traceId = substr($output, 0, strpos($output, ':'));
+        self::assertNotEmpty($traceId);
+
+        $spans = $this->getSpansFromTrace($this->getTraceFromJaegerAPI($traceId));
+        self::assertCount(1, $spans);
+        self::assertSame('test:jaeger', $spans[0]['operationName']);
+    }
+}
diff --git a/Tests/Functional/TestProjectFiles/default/src/Command/TestCommand.php b/Tests/Functional/TestProjectFiles/default/src/Command/TestCommand.php
new file mode 100644
index 0000000..ed4e974
--- /dev/null
+++ b/Tests/Functional/TestProjectFiles/default/src/Command/TestCommand.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Command;
+
+use Auxmoney\OpentracingBundle\Internal\Opentracing;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use const OpenTracing\Formats\TEXT_MAP;
+
+class TestCommand extends Command
+{
+    private $opentracing;
+
+    public function __construct(Opentracing $opentracing)
+    {
+        parent::__construct('test:jaeger');
+        $this->setDescription('some fancy command description');
+        $this->opentracing = $opentracing;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $carrier = [];
+        $this->opentracing->getTracerInstance()->inject($this->opentracing->getTracerInstance()->getActiveSpan()->getContext(), TEXT_MAP, $carrier);
+        $output->writeln(current($carrier));
+        return 0;
+    }
+}
diff --git a/composer.json b/composer.json
index 07ffd3d..65e2890 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,11 @@
     "phpstan/phpstan": "^0.12",
     "squizlabs/php_codesniffer": "^3.5",
     "phpmd/phpmd": "^2.7",
-    "php-coveralls/php-coveralls": "^2.2"
+    "php-coveralls/php-coveralls": "^2.2",
+    "symfony/filesystem": "*",
+    "symfony/process": "*",
+    "symfony/yaml": "*",
+    "mtdowling/jmespath.php": "^2.5"
   },
   "autoload": {
     "psr-4": {
@@ -49,7 +53,14 @@
     ],
     "phpmd": "vendor/bin/phpmd . text cleancode,codesize,controversial,design,naming,unusedcode --exclude vendor,Tests",
     "phpcs": "vendor/bin/phpcs",
-    "phpunit": "phpdbg -qrr vendor/bin/phpunit --colors=never",
+    "phpunit": "phpdbg -qrr vendor/bin/phpunit --colors=never --testsuite=unit",
+    "phpunit-functional": [
+      "vendor/auxmoney/opentracing-bundle-core/Tests/Functional/Scripts/checkEnvironment.sh",
+      "vendor/auxmoney/opentracing-bundle-core/Tests/Functional/Scripts/setup.sh",
+      "vendor/auxmoney/opentracing-bundle-core/Tests/Functional/Scripts/createResetPoint.sh",
+      "vendor/bin/phpunit --colors=never --testsuite=functional --no-coverage",
+      "vendor/auxmoney/opentracing-bundle-core/Tests/Functional/Scripts/teardown.sh"
+    ],
     "phpstan": "vendor/bin/phpstan analyse --no-progress"
   }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 82e4438..0e78075 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -20,6 +20,12 @@
     <testsuites>
         <testsuite name="unit">
             <directory>./Tests/</directory>
+            <exclude>./Tests/Functional</exclude>
+        </testsuite>
+        <testsuite name="functional">
+            <directory>./Tests/Functional/</directory>
+            <exclude>./Tests/Functional/Scripts</exclude>
+            <exclude>./Tests/Functional/TestProjectFiles</exclude>
         </testsuite>
     </testsuites>