diff --git a/.scrutinizer.yml b/.scrutinizer.yml
index 4bcbdf37..548fa370 100644
--- a/.scrutinizer.yml
+++ b/.scrutinizer.yml
@@ -30,6 +30,7 @@ build:
 
     environment:
         variables:
+            XDEBUG_MODE: 'coverage'
             CI: 'true'
             TEST_OUTPUT_STYLE: 'pretty'
             COMPOSER_OPTIONS: '--optimize-autoloader'
@@ -37,7 +38,7 @@ build:
             COVERAGE_CLOVER_FILE_PATH: 'build/coverage/clover.xml'
             PHPCS_DISABLE_WARNING: "true"
         php:
-            version: "7.1"
+            version: "8.2"
         timezone: UTC
         postgresql: false
         redis: false
diff --git a/composer.json b/composer.json
index 7a7a438c..bb4edc6f 100644
--- a/composer.json
+++ b/composer.json
@@ -32,14 +32,21 @@
     "yoanm/symfony-jsonrpc-http-server": "JSON-RPC HTTP Symfony server Bundle"
   },
   "require": {
-    "php": ">=7.1",
+    "php": "^8.0",
     "ext-json": "*"
   },
   "require-dev": {
     "behat/behat": "~3.0",
     "squizlabs/php_codesniffer": "3.*",
-    "phpunit/phpunit": "^7.0 || ^8.0",
+    "phpunit/phpunit": "^9.6",
     "yoanm/php-unit-extended": "^1.0",
-    "yoanm/jsonrpc-server-doc-sdk": "^0.2"
+    "yoanm/jsonrpc-server-doc-sdk": "^0.2",
+    "phpspec/prophecy": "^1.17",
+    "phpspec/prophecy-phpunit": "^2.0"
+  },
+  "config": {
+    "allow-plugins": {
+      "phpstan/extension-installer": true
+    }
   }
 }
diff --git a/tests/Functional/App/Creator/ResponseCreator/BaseTestCase.php b/tests/Functional/App/Creator/ResponseCreator/BaseTestCase.php
index 6b20f3dc..37cd2c52 100644
--- a/tests/Functional/App/Creator/ResponseCreator/BaseTestCase.php
+++ b/tests/Functional/App/Creator/ResponseCreator/BaseTestCase.php
@@ -2,12 +2,15 @@
 namespace Tests\Functional\App\Creator\ResponseCreator;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\App\Creator\ResponseCreator;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcRequest;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcResponse;
 
 class BaseTestCase extends TestCase
 {
+    use ProphecyTrait;
+
     const DEFAULT_JSONRPC = '2.0';
     const DEFAULT_ID = '1234567890';
     const DEFAULT_METHOD = 'defaultMethod';
diff --git a/tests/Functional/App/Creator/ResponseCreator/CreateEmptyResponseTest.php b/tests/Functional/App/Creator/ResponseCreator/CreateEmptyResponseTest.php
index 7461043f..5414f84d 100644
--- a/tests/Functional/App/Creator/ResponseCreator/CreateEmptyResponseTest.php
+++ b/tests/Functional/App/Creator/ResponseCreator/CreateEmptyResponseTest.php
@@ -1,6 +1,8 @@
 <?php
 namespace Tests\Functional\App\Creator\ResponseCreator;
 
+use Prophecy\PhpUnit\ProphecyTrait;
+
 /**
  * @covers \Yoanm\JsonRpcServer\App\Creator\ResponseCreator
  *
@@ -11,6 +13,8 @@
  */
 class CreateEmptyResponseTest extends BaseTestCase
 {
+    use ProphecyTrait;
+
     /**
      * Should bind following properties  to response :
      *  - json-rpc version from request
diff --git a/tests/Functional/App/Creator/ResponseCreator/CreateErrorResponseTest.php b/tests/Functional/App/Creator/ResponseCreator/CreateErrorResponseTest.php
index 8e1b978b..7bba9f76 100644
--- a/tests/Functional/App/Creator/ResponseCreator/CreateErrorResponseTest.php
+++ b/tests/Functional/App/Creator/ResponseCreator/CreateErrorResponseTest.php
@@ -1,6 +1,7 @@
 <?php
 namespace Tests\Functional\App\Creator\ResponseCreator;
 
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcException;
 
@@ -11,6 +12,8 @@
  */
 class CreateErrorResponseTest extends BaseTestCase
 {
+    use ProphecyTrait;
+
     /**
      * Should handle error
      */
diff --git a/tests/Functional/App/Creator/ResponseCreator/CreateResultResponseTest.php b/tests/Functional/App/Creator/ResponseCreator/CreateResultResponseTest.php
index e4d1814b..c7440929 100644
--- a/tests/Functional/App/Creator/ResponseCreator/CreateResultResponseTest.php
+++ b/tests/Functional/App/Creator/ResponseCreator/CreateResultResponseTest.php
@@ -1,6 +1,8 @@
 <?php
 namespace Tests\Functional\App\Creator\ResponseCreator;
 
+use Prophecy\PhpUnit\ProphecyTrait;
+
 /**
  * @covers \Yoanm\JsonRpcServer\App\Creator\ResponseCreator
  *
@@ -8,6 +10,8 @@
  */
 class CreateResultResponseTest extends BaseTestCase
 {
+    use ProphecyTrait;
+
     /**
      * Should handle result
      */
diff --git a/tests/Functional/App/Dispatcher/JsonRpcServerDispatcherAwareTraitTest.php b/tests/Functional/App/Dispatcher/JsonRpcServerDispatcherAwareTraitTest.php
index 2a2b345d..2cce9ab1 100644
--- a/tests/Functional/App/Dispatcher/JsonRpcServerDispatcherAwareTraitTest.php
+++ b/tests/Functional/App/Dispatcher/JsonRpcServerDispatcherAwareTraitTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Dispatcher;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Dispatcher\JsonRpcServerDispatcherAwareTrait;
 use Yoanm\JsonRpcServer\Domain\Event\JsonRpcServerEvent;
@@ -14,6 +15,8 @@
  */
 class JsonRpcServerDispatcherAwareTraitTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcServerDispatcherAwareTrait|ConcreteDispatcherAware */
     private $dispatcherAware;
     /** @var JsonRpcServerDispatcherInterface|ObjectProphecy */
diff --git a/tests/Functional/App/Handler/ExceptionHandlerTest.php b/tests/Functional/App/Handler/ExceptionHandlerTest.php
index bf245c7c..7b6ec35f 100644
--- a/tests/Functional/App/Handler/ExceptionHandlerTest.php
+++ b/tests/Functional/App/Handler/ExceptionHandlerTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Handler;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Creator\ResponseCreator;
 use Yoanm\JsonRpcServer\App\Handler\ExceptionHandler;
@@ -15,6 +16,8 @@
  */
 class ExceptionHandlerTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var ExceptionHandler */
     private $exceptionHandler;
     /** @var ResponseCreator */
diff --git a/tests/Functional/App/Handler/ExceptionHandlerWithDispatcherTest.php b/tests/Functional/App/Handler/ExceptionHandlerWithDispatcherTest.php
index b45d1eee..005a28cc 100644
--- a/tests/Functional/App/Handler/ExceptionHandlerWithDispatcherTest.php
+++ b/tests/Functional/App/Handler/ExceptionHandlerWithDispatcherTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Creator\ResponseCreator;
 use Yoanm\JsonRpcServer\App\Handler\ExceptionHandler;
@@ -18,6 +19,8 @@
  */
 class ExceptionHandlerWithDispatcherTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var ExceptionHandler */
     private $exceptionHandler;
     /** @var ResponseCreator|ObjectProphecy */
diff --git a/tests/Functional/App/Handler/JsonRpcRequestHandlerTest.php b/tests/Functional/App/Handler/JsonRpcRequestHandlerTest.php
index 13bf9f91..36c8ad22 100644
--- a/tests/Functional/App/Handler/JsonRpcRequestHandlerTest.php
+++ b/tests/Functional/App/Handler/JsonRpcRequestHandlerTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Creator\ResponseCreator;
 use Yoanm\JsonRpcServer\App\Handler\JsonRpcRequestHandler;
@@ -19,6 +20,8 @@
  */
 class JsonRpcRequestHandlerTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcRequestHandler */
     private $requestHandler;
     /** @var JsonRpcMethodResolverInterface|ObjectProphecy */
diff --git a/tests/Functional/App/Handler/JsonRpcRequestHandlerWithDispatcherTest.php b/tests/Functional/App/Handler/JsonRpcRequestHandlerWithDispatcherTest.php
index 609a8206..e32760fc 100644
--- a/tests/Functional/App/Handler/JsonRpcRequestHandlerWithDispatcherTest.php
+++ b/tests/Functional/App/Handler/JsonRpcRequestHandlerWithDispatcherTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Creator\ResponseCreator;
 use Yoanm\JsonRpcServer\App\Handler\JsonRpcRequestHandler;
@@ -20,6 +21,8 @@
  */
 class JsonRpcRequestHandlerWithDispatcherTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcRequestHandler */
     private $requestHandler;
     /** @var JsonRpcMethodResolverInterface|ObjectProphecy */
diff --git a/tests/Functional/App/Serialization/JsonRpcCallDenormalizerTest.php b/tests/Functional/App/Serialization/JsonRpcCallDenormalizerTest.php
index 7de8b398..34303dba 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallDenormalizerTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallDenormalizerTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Tests\Functional\App\Serialization\Helper\DenormalizationValidatorTrait;
 use Tests\Functional\App\Serialization\Helper\RequestStringProviderTrait;
@@ -18,6 +19,8 @@
  */
 class JsonRpcCallDenormalizerTest extends TestCase
 {
+    use ProphecyTrait;
+
     use DenormalizationValidatorTrait;
     use RequestStringProviderTrait;
 
diff --git a/tests/Functional/App/Serialization/JsonRpcCallResponseNormalizerTest.php b/tests/Functional/App/Serialization/JsonRpcCallResponseNormalizerTest.php
index 39f136c4..db277ab4 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallResponseNormalizerTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallResponseNormalizerTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Serialization;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Tests\Functional\App\Serialization\Helper\JsonRpcCallResponseProviderTrait;
 use Tests\Functional\App\Serialization\Helper\NormalizationHelperTrait;
@@ -17,6 +18,8 @@
  */
 class JsonRpcCallResponseNormalizerTest extends TestCase
 {
+    use ProphecyTrait;
+
     use JsonRpcCallResponseProviderTrait;
     use NormalizationHelperTrait;
 
diff --git a/tests/Functional/App/Serialization/JsonRpcCallSerializer/DecodeTest.php b/tests/Functional/App/Serialization/JsonRpcCallSerializer/DecodeTest.php
index a6645a30..27f255e5 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallSerializer/DecodeTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallSerializer/DecodeTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Serialization\JsonRpcCallSerializer;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Tests\Functional\App\Serialization\Helper\RequestStringProviderTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
@@ -18,6 +19,8 @@
  */
 class DecodeTest extends TestCase
 {
+    use ProphecyTrait;
+
     use RequestStringProviderTrait;
 
     /** @var JsonRpcCallSerializer */
diff --git a/tests/Functional/App/Serialization/JsonRpcCallSerializer/DenormalizeTest.php b/tests/Functional/App/Serialization/JsonRpcCallSerializer/DenormalizeTest.php
index 7e916138..7adbb599 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallSerializer/DenormalizeTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallSerializer/DenormalizeTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Tests\Functional\App\Serialization\Helper\RequestStringProviderTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
@@ -18,6 +19,8 @@
  */
 class DenormalizeTest extends TestCase
 {
+    use ProphecyTrait;
+
     use RequestStringProviderTrait;
 
     /** @var JsonRpcCallSerializer */
diff --git a/tests/Functional/App/Serialization/JsonRpcCallSerializer/DeserializeTest.php b/tests/Functional/App/Serialization/JsonRpcCallSerializer/DeserializeTest.php
index 80585441..cb3a3752 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallSerializer/DeserializeTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallSerializer/DeserializeTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Tests\Functional\App\Serialization\Helper\RequestStringProviderTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
@@ -18,6 +19,8 @@
  */
 class DeserializeTest extends TestCase
 {
+    use ProphecyTrait;
+
     use RequestStringProviderTrait;
 
     /** @var JsonRpcCallSerializer */
diff --git a/tests/Functional/App/Serialization/JsonRpcCallSerializer/EncodeTest.php b/tests/Functional/App/Serialization/JsonRpcCallSerializer/EncodeTest.php
index bd9dbfe2..4b95e2dd 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallSerializer/EncodeTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallSerializer/EncodeTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Serialization\JsonRpcCallSerializer;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallResponseNormalizer;
@@ -15,6 +16,8 @@
  */
 class EncodeTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcCallSerializer */
     private $jsonRpcCallSerializer;
     /** @var JsonRpcCallDenormalizer|ObjectProphecy */
diff --git a/tests/Functional/App/Serialization/JsonRpcCallSerializer/NormalizeTest.php b/tests/Functional/App/Serialization/JsonRpcCallSerializer/NormalizeTest.php
index bda5ecdb..ea724cd0 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallSerializer/NormalizeTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallSerializer/NormalizeTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Serialization\JsonRpcCallSerializer;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Tests\Functional\App\Serialization\Helper\JsonRpcCallResponseProviderTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
@@ -17,6 +18,8 @@
  */
 class NormalizeTest extends TestCase
 {
+    use ProphecyTrait;
+
     use JsonRpcCallResponseProviderTrait;
 
     /** @var JsonRpcCallSerializer */
diff --git a/tests/Functional/App/Serialization/JsonRpcCallSerializer/SerializeTest.php b/tests/Functional/App/Serialization/JsonRpcCallSerializer/SerializeTest.php
index c263f99d..eb3de28a 100644
--- a/tests/Functional/App/Serialization/JsonRpcCallSerializer/SerializeTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcCallSerializer/SerializeTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Serialization\JsonRpcCallSerializer;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Tests\Functional\App\Serialization\Helper\JsonRpcCallResponseProviderTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
@@ -17,6 +18,8 @@
  */
 class SerializeTest extends TestCase
 {
+    use ProphecyTrait;
+
     use JsonRpcCallResponseProviderTrait;
 
     /** @var JsonRpcCallSerializer */
diff --git a/tests/Functional/App/Serialization/JsonRpcRequestDenormalizerTest.php b/tests/Functional/App/Serialization/JsonRpcRequestDenormalizerTest.php
index 613ea60d..70e1c603 100644
--- a/tests/Functional/App/Serialization/JsonRpcRequestDenormalizerTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcRequestDenormalizerTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Serialization;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcRequestDenormalizer;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcInvalidRequestException;
 
@@ -13,6 +14,8 @@
  */
 class JsonRpcRequestDenormalizerTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcRequestDenormalizer */
     private $requestDenormalizer;
 
diff --git a/tests/Functional/App/Serialization/JsonRpcResponseNormalizerTest.php b/tests/Functional/App/Serialization/JsonRpcResponseNormalizerTest.php
index 5ac33e18..767d30b7 100644
--- a/tests/Functional/App/Serialization/JsonRpcResponseNormalizerTest.php
+++ b/tests/Functional/App/Serialization/JsonRpcResponseNormalizerTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\App\Serialization;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcResponseNormalizer;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcException;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcResponse;
@@ -14,6 +15,8 @@
  */
 class JsonRpcResponseNormalizerTest extends TestCase
 {
+    use ProphecyTrait;
+
     const EXPECTED_KEY_JSONRPC_VERSION = 'jsonrpc';
     const EXPECTED_KEY_ID = 'id';
     const EXPECTED_KEY_RESULT = 'result';
diff --git a/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessedEventTest.php b/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessedEventTest.php
index 2db72995..83fd711d 100644
--- a/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessedEventTest.php
+++ b/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessedEventTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Event\Acknowledge;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Event\Acknowledge\OnBatchSubRequestProcessedEvent;
 
 /**
@@ -13,6 +14,8 @@
  */
 class OnBatchSubRequestProcessedEventTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageAnItemPosition()
     {
         $itemPosition = 23;
diff --git a/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessingEventTest.php b/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessingEventTest.php
index 35b74876..fbd75b60 100644
--- a/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessingEventTest.php
+++ b/tests/Functional/Domain/Event/Acknowledge/OnBatchSubRequestProcessingEventTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Event\Acknowledge;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Event\Acknowledge\OnBatchSubRequestProcessingEvent;
 
 /**
@@ -13,6 +14,8 @@
  */
 class OnBatchSubRequestProcessingEventTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageAnItemPosition()
     {
         $itemPosition = 23;
diff --git a/tests/Functional/Domain/Event/Acknowledge/OnRequestReceivedEventTest.php b/tests/Functional/Domain/Event/Acknowledge/OnRequestReceivedEventTest.php
index 6e2dbb60..1a5aeb55 100644
--- a/tests/Functional/Domain/Event/Acknowledge/OnRequestReceivedEventTest.php
+++ b/tests/Functional/Domain/Event/Acknowledge/OnRequestReceivedEventTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Event\Acknowledge;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Event\Acknowledge\OnRequestReceivedEvent;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcCall;
 
@@ -13,6 +14,8 @@
  */
 class OnRequestReceivedEventTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageACallStringAndDenormalizedCall()
     {
         $callString = 'my-call-string';
diff --git a/tests/Functional/Domain/Event/Acknowledge/OnResponseSendingEventTest.php b/tests/Functional/Domain/Event/Acknowledge/OnResponseSendingEventTest.php
index e85b3227..0df3ac3d 100644
--- a/tests/Functional/Domain/Event/Acknowledge/OnResponseSendingEventTest.php
+++ b/tests/Functional/Domain/Event/Acknowledge/OnResponseSendingEventTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Event\Acknowledge;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Event\Acknowledge\OnResponseSendingEvent;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcCall;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcCallResponse;
@@ -14,6 +15,8 @@
  */
 class OnResponseSendingEventTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageAResponseStringAndNormalizedResponseCall()
     {
         $responseString = 'my-call-string';
diff --git a/tests/Functional/Domain/Event/Action/OnExceptionEventTest.php b/tests/Functional/Domain/Event/Action/OnExceptionEventTest.php
index 9b187313..0b726e66 100644
--- a/tests/Functional/Domain/Event/Action/OnExceptionEventTest.php
+++ b/tests/Functional/Domain/Event/Action/OnExceptionEventTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Event\Action;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Event\Action\OnExceptionEvent;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcRequest;
 
@@ -13,6 +14,8 @@
  */
 class OnExceptionEventTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageAnException()
     {
         $exception = new \Exception('my-message');
diff --git a/tests/Functional/Domain/Event/Action/OnMethodFailureEventTest.php b/tests/Functional/Domain/Event/Action/OnMethodFailureEventTest.php
index 67602d80..3fab7895 100644
--- a/tests/Functional/Domain/Event/Action/OnMethodFailureEventTest.php
+++ b/tests/Functional/Domain/Event/Action/OnMethodFailureEventTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Event\Action;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\Domain\Event\Action\OnMethodFailureEvent;
 use Yoanm\JsonRpcServer\Domain\JsonRpcMethodInterface;
@@ -16,6 +17,8 @@
  */
 class OnMethodFailureEventTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageAResultFromAMethodAndARequest()
     {
         $exception = new \Exception('my-message');
diff --git a/tests/Functional/Domain/Event/Action/OnMethodSuccessEventTest.php b/tests/Functional/Domain/Event/Action/OnMethodSuccessEventTest.php
index 32b56cc7..b16f3901 100644
--- a/tests/Functional/Domain/Event/Action/OnMethodSuccessEventTest.php
+++ b/tests/Functional/Domain/Event/Action/OnMethodSuccessEventTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Event\Action;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\Domain\Event\Action\OnMethodSuccessEvent;
 use Yoanm\JsonRpcServer\Domain\JsonRpcMethodInterface;
@@ -16,6 +17,8 @@
  */
 class OnMethodSuccessEventTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageAResultFromAMethodAndARequest()
     {
         $result = 'my-result';
diff --git a/tests/Functional/Domain/Exception/JsonRpcExceptionTest.php b/tests/Functional/Domain/Exception/JsonRpcExceptionTest.php
index b01bf41d..a994cb00 100644
--- a/tests/Functional/Domain/Exception/JsonRpcExceptionTest.php
+++ b/tests/Functional/Domain/Exception/JsonRpcExceptionTest.php
@@ -1,7 +1,8 @@
 <?php
-namespace Tests\Technical\Domain\Exception;
+namespace Tests\Functional\Domain\Exception;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcException;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcExceptionTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldHandleACode()
     {
         $code = 4321;
diff --git a/tests/Functional/Domain/Exception/JsonRpcInternalErrorExceptionTest.php b/tests/Functional/Domain/Exception/JsonRpcInternalErrorExceptionTest.php
index 36f601d1..50455cbb 100644
--- a/tests/Functional/Domain/Exception/JsonRpcInternalErrorExceptionTest.php
+++ b/tests/Functional/Domain/Exception/JsonRpcInternalErrorExceptionTest.php
@@ -1,7 +1,8 @@
 <?php
-namespace Tests\Technical\Domain\Exception;
+namespace Tests\Functional\Domain\Exception;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcInternalErrorException;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcInternalErrorExceptionTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldHaveTheRightJsonRpcErrorCode()
     {
         $exception = new JsonRpcInternalErrorException();
diff --git a/tests/Functional/Domain/Exception/JsonRpcInvalidParamsExceptionTest.php b/tests/Functional/Domain/Exception/JsonRpcInvalidParamsExceptionTest.php
index 6fcdc708..82b97d25 100644
--- a/tests/Functional/Domain/Exception/JsonRpcInvalidParamsExceptionTest.php
+++ b/tests/Functional/Domain/Exception/JsonRpcInvalidParamsExceptionTest.php
@@ -1,7 +1,8 @@
 <?php
-namespace Tests\Technical\Domain\Exception;
+namespace Tests\Functional\Domain\Exception;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcInvalidParamsException;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcInvalidParamsExceptionTest extends TestCase
 {
+    use ProphecyTrait;
+
     const DEFAULT_MESSAGE = 'default-message';
     const DEFAULT_PATH = 'my-path';
 
diff --git a/tests/Functional/Domain/Exception/JsonRpcInvalidRequestExceptionTest.php b/tests/Functional/Domain/Exception/JsonRpcInvalidRequestExceptionTest.php
index 4bc0dd92..5c319c44 100644
--- a/tests/Functional/Domain/Exception/JsonRpcInvalidRequestExceptionTest.php
+++ b/tests/Functional/Domain/Exception/JsonRpcInvalidRequestExceptionTest.php
@@ -1,7 +1,8 @@
 <?php
-namespace Tests\Technical\Domain\Exception;
+namespace Tests\Functional\Domain\Exception;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcInvalidRequestException;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcInvalidRequestExceptionTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldHaveTheRightJsonRpcErrorCode()
     {
         $exception = new JsonRpcInvalidRequestException('my-content');
diff --git a/tests/Functional/Domain/Exception/JsonRpcMethodNotFoundExceptionTest.php b/tests/Functional/Domain/Exception/JsonRpcMethodNotFoundExceptionTest.php
index 20478c12..2061fb2f 100644
--- a/tests/Functional/Domain/Exception/JsonRpcMethodNotFoundExceptionTest.php
+++ b/tests/Functional/Domain/Exception/JsonRpcMethodNotFoundExceptionTest.php
@@ -1,7 +1,8 @@
 <?php
-namespace Tests\Technical\Domain\Exception;
+namespace Tests\Functional\Domain\Exception;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcMethodNotFoundException;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcMethodNotFoundExceptionTest extends TestCase
 {
+    use ProphecyTrait;
+
     const DEFAULT_METHOD = 'default-method';
 
     public function testShouldHaveTheRightJsonRpcErrorCode()
diff --git a/tests/Functional/Domain/Exception/JsonRpcParseErrorExceptionTest.php b/tests/Functional/Domain/Exception/JsonRpcParseErrorExceptionTest.php
index c4de936a..4c7b8364 100644
--- a/tests/Functional/Domain/Exception/JsonRpcParseErrorExceptionTest.php
+++ b/tests/Functional/Domain/Exception/JsonRpcParseErrorExceptionTest.php
@@ -1,7 +1,8 @@
 <?php
-namespace Tests\Technical\Domain\Exception;
+namespace Tests\Functional\Domain\Exception;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcParseErrorException;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcParseErrorExceptionTest extends TestCase
 {
+    use ProphecyTrait;
+
     const DEFAULT_CONTENT = 'default-content';
 
     public function testShouldHaveTheRightJsonRpcErrorCode()
diff --git a/tests/Functional/Domain/Model/JsonRpcCallResponseTest.php b/tests/Functional/Domain/Model/JsonRpcCallResponseTest.php
index 80632941..6d69ea54 100644
--- a/tests/Functional/Domain/Model/JsonRpcCallResponseTest.php
+++ b/tests/Functional/Domain/Model/JsonRpcCallResponseTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Model;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcCallResponse;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcResponse;
 
@@ -12,6 +13,8 @@
  */
 class JsonRpcCallResponseTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageBatchProperty()
     {
         $this->assertTrue((new JsonRpcCallResponse(true))->isBatch());
diff --git a/tests/Functional/Domain/Model/JsonRpcCallTest.php b/tests/Functional/Domain/Model/JsonRpcCallTest.php
index b3f5e6ee..09067e60 100644
--- a/tests/Functional/Domain/Model/JsonRpcCallTest.php
+++ b/tests/Functional/Domain/Model/JsonRpcCallTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Model;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcCall;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcRequest;
 
@@ -12,6 +13,8 @@
  */
 class JsonRpcCallTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testShouldManageBatchProperty()
     {
         $this->assertTrue((new JsonRpcCall(true))->isBatch());
diff --git a/tests/Functional/Domain/Model/JsonRpcRequestTest.php b/tests/Functional/Domain/Model/JsonRpcRequestTest.php
index ef654bfe..85716b2b 100644
--- a/tests/Functional/Domain/Model/JsonRpcRequestTest.php
+++ b/tests/Functional/Domain/Model/JsonRpcRequestTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Model;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcRequest;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcRequestTest extends TestCase
 {
+
+    use ProphecyTrait;
     use IdProviderTrait;
 
     public function testShouldHaveMethodAndJsonRpcVersion()
diff --git a/tests/Functional/Domain/Model/JsonRpcResponseTest.php b/tests/Functional/Domain/Model/JsonRpcResponseTest.php
index 748899c5..924d51bb 100644
--- a/tests/Functional/Domain/Model/JsonRpcResponseTest.php
+++ b/tests/Functional/Domain/Model/JsonRpcResponseTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Functional\Domain\Model;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcExceptionInterface;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcResponse;
 
@@ -12,6 +13,8 @@
  */
 class JsonRpcResponseTest extends TestCase
 {
+
+    use ProphecyTrait;
     use IdProviderTrait;
 
     public function testShouldHaveAJsonRpcVersion()
diff --git a/tests/Functional/Infra/Endpoint/JsonRpcEndpointTest.php b/tests/Functional/Infra/Endpoint/JsonRpcEndpointTest.php
index 611c7f88..2f666f3d 100644
--- a/tests/Functional/Infra/Endpoint/JsonRpcEndpointTest.php
+++ b/tests/Functional/Infra/Endpoint/JsonRpcEndpointTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Handler\ExceptionHandler;
 use Yoanm\JsonRpcServer\App\Handler\JsonRpcRequestHandler;
@@ -20,6 +21,8 @@
  */
 class JsonRpcEndpointTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcEndpoint */
     private $endpoint;
     /** @var JsonRpcCallSerializer|ObjectProphecy */
diff --git a/tests/Functional/Infra/Endpoint/JsonRpcEndpointWithDispatcherTest.php b/tests/Functional/Infra/Endpoint/JsonRpcEndpointWithDispatcherTest.php
index 14fc876e..cb9b53ef 100644
--- a/tests/Functional/Infra/Endpoint/JsonRpcEndpointWithDispatcherTest.php
+++ b/tests/Functional/Infra/Endpoint/JsonRpcEndpointWithDispatcherTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Handler\ExceptionHandler;
 use Yoanm\JsonRpcServer\App\Handler\JsonRpcRequestHandler;
@@ -24,6 +25,8 @@
  */
 class JsonRpcEndpointWithDispatcherTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcEndpoint */
     private $endpoint;
     /** @var JsonRpcCallSerializer|ObjectProphecy */
diff --git a/tests/Technical/App/Creator/ResponseCreatorTest.php b/tests/Technical/App/Creator/ResponseCreatorTest.php
index e42b4d59..efdb1a5e 100644
--- a/tests/Technical/App/Creator/ResponseCreatorTest.php
+++ b/tests/Technical/App/Creator/ResponseCreatorTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Technical\App\Creator;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\App\Creator\ResponseCreator;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcInternalErrorException;
 
@@ -10,6 +11,8 @@
  */
 class ResponseCreatorTest extends TestCase
 {
+    use ProphecyTrait;
+
     const DEFAULT_JSONRPC = '2.0';
     const DEFAULT_ID = '1234567890';
     const DEFAULT_METHOD = 'defaultMethod';
diff --git a/tests/Technical/App/Serialization/JsonRpcRequestDenormalizerTest.php b/tests/Technical/App/Serialization/JsonRpcRequestDenormalizerTest.php
index 52a92706..71adcaab 100644
--- a/tests/Technical/App/Serialization/JsonRpcRequestDenormalizerTest.php
+++ b/tests/Technical/App/Serialization/JsonRpcRequestDenormalizerTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Technical\App\Serialization;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcRequestDenormalizer;
 use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcInvalidRequestException;
 
@@ -13,6 +14,8 @@
  */
 class JsonRpcRequestDenormalizerTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcRequestDenormalizer */
     private $requestDenormalizer;
 
diff --git a/tests/Technical/Domain/Model/JsonRpcRequestTest.php b/tests/Technical/Domain/Model/JsonRpcRequestTest.php
index e1afeaa4..88b72033 100644
--- a/tests/Technical/Domain/Model/JsonRpcRequestTest.php
+++ b/tests/Technical/Domain/Model/JsonRpcRequestTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Technical\Domain\Model;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcRequest;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcRequestTest extends TestCase
 {
+
+    use ProphecyTrait;
     use IdProviderTrait;
 
     /**
diff --git a/tests/Technical/Domain/Model/JsonRpcResponseTest.php b/tests/Technical/Domain/Model/JsonRpcResponseTest.php
index e85d7f9b..f9f2aff0 100644
--- a/tests/Technical/Domain/Model/JsonRpcResponseTest.php
+++ b/tests/Technical/Domain/Model/JsonRpcResponseTest.php
@@ -2,6 +2,7 @@
 namespace Tests\Technical\Domain\Model;
 
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Yoanm\JsonRpcServer\Domain\Model\JsonRpcResponse;
 
 /**
@@ -11,6 +12,8 @@
  */
 class JsonRpcResponseTest extends TestCase
 {
+
+    use ProphecyTrait;
     use IdProviderTrait;
 
     /**
diff --git a/tests/Technical/Infra/Endpoint/JsonRpcEndpointTest.php b/tests/Technical/Infra/Endpoint/JsonRpcEndpointTest.php
index b7502e29..e77a5b30 100644
--- a/tests/Technical/Infra/Endpoint/JsonRpcEndpointTest.php
+++ b/tests/Technical/Infra/Endpoint/JsonRpcEndpointTest.php
@@ -3,6 +3,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use Yoanm\JsonRpcServer\App\Handler\ExceptionHandler;
 use Yoanm\JsonRpcServer\App\Handler\JsonRpcRequestHandler;
@@ -21,6 +22,8 @@
  */
 class JsonRpcEndpointTest extends TestCase
 {
+    use ProphecyTrait;
+
     /** @var JsonRpcEndpoint */
     private $endpoint;
     /** @var JsonRpcCallSerializer|ObjectProphecy */