diff --git a/src/Bundle/ChillMainBundle/Test/PrepareCircleTrait.php b/src/Bundle/ChillMainBundle/Test/PrepareCircleTrait.php
deleted file mode 100644
index 8cbe9337c..000000000
--- a/src/Bundle/ChillMainBundle/Test/PrepareCircleTrait.php
+++ /dev/null
@@ -1,47 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * Chill is a software for social workers
- *
- * For the full copyright and license information, please view
- * the LICENSE file that was distributed with this source code.
- */
-
-namespace Chill\MainBundle\Test;
-
-/**
- * A trait to prepare center.
- *
- * **Usage :** You must set up trait with `setUpTrait` before use
- * and use tearDownTrait after usage.
- *
- * @codeCoverageIgnore
- */
-trait PrepareCircleTrait
-{
-    private $circleProphet;
-
-    /**
-     * prepare a mocked center, with and id and name given.
-     *
-     * @param int $id
-     * @param string $name
-     *
-     * @return \Chill\MainBundle\Entity\Center
-     */
-    protected function prepareCircle($id, $name)
-    {
-        if (null === $this->circleProphet) {
-            $this->circleProphet = new \Prophecy\Prophet();
-        }
-
-        $scope = $this->circleProphet->prophesize();
-        $scope->willExtend('\\' . \Chill\MainBundle\Entity\Scope::class);
-        $scope->getId()->willReturn($id);
-        $scope->getName()->willReturn($name);
-
-        return $scope->reveal();
-    }
-}
diff --git a/src/Bundle/ChillMainBundle/Test/PrepareScopeTrait.php b/src/Bundle/ChillMainBundle/Test/PrepareScopeTrait.php
index 4ac86af79..dbd1825d8 100644
--- a/src/Bundle/ChillMainBundle/Test/PrepareScopeTrait.php
+++ b/src/Bundle/ChillMainBundle/Test/PrepareScopeTrait.php
@@ -11,6 +11,8 @@ declare(strict_types=1);
 
 namespace Chill\MainBundle\Test;
 
+use Chill\MainBundle\Entity\Scope;
+
 /**
  * A trait to prepare center.
  *
@@ -18,25 +20,24 @@ namespace Chill\MainBundle\Test;
  * and use tearDownTrait after usage.
  *
  * @codeCoverageIgnore
- *
- * @deprecated use PrepareCircleTrait instead
  */
 trait PrepareScopeTrait
 {
-    use PrepareCircleTrait;
-
     /**
-     * prepare a mocked center, with and id and name given.
+     * prepare a mocked scope, with and id and name given.
      *
-     * @param int $id
-     * @param string $name
-     *
-     * @return \Chill\MainBundle\Entity\Center
-     *
-     * @deprecated
+     * The name will be present in both lang `fr` and `en`.
      */
-    protected function prepareScope($id, $name)
+    protected function prepareScope(int $id, string $name): Scope
     {
-        return $this->prepareCircle($id, $name);
+        $scope = new Scope();
+        // set the name
+        $scope->setName(['fr' => $name, 'en' => $name]);
+        $reflection = new \ReflectionClass($scope);
+        $idProperty = $reflection->getProperty('id');
+        $idProperty->setAccessible(true);
+        $idProperty->setValue($scope, $id);
+
+        return $scope;
     }
 }
diff --git a/src/Bundle/ChillMainBundle/Tests/Security/Authorization/AuthorizationHelperTest.php b/src/Bundle/ChillMainBundle/Tests/Security/Authorization/AuthorizationHelperTest.php
index 3f0e6a71d..02d7fce80 100644
--- a/src/Bundle/ChillMainBundle/Tests/Security/Authorization/AuthorizationHelperTest.php
+++ b/src/Bundle/ChillMainBundle/Tests/Security/Authorization/AuthorizationHelperTest.php
@@ -18,13 +18,12 @@ use Chill\MainBundle\Entity\HasScopeInterface;
 use Chill\MainBundle\Entity\HasScopesInterface;
 use Chill\MainBundle\Entity\Scope;
 use Chill\MainBundle\Entity\User;
+use Chill\MainBundle\Security\Authorization\AuthorizationHelper;
 use Chill\MainBundle\Test\PrepareCenterTrait;
 use Chill\MainBundle\Test\PrepareScopeTrait;
 use Chill\MainBundle\Test\PrepareUserTrait;
-use Chill\MainBundle\Test\ProphecyTrait;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
-use Symfony\Component\Security\Core\Role\Role;
-use function array_map;
 use function in_array;
 
 /**
@@ -198,24 +197,6 @@ final class AuthorizationHelperTest extends KernelTestCase
         ];
     }
 
-    public function testFindUsersReaching()
-    {
-        $centerA = self::$kernel->getContainer()
-            ->get('doctrine.orm.entity_manager')
-            ->getRepository(Center::class)
-            ->findOneByName('Center A');
-
-        $users = $this->getAuthorizationHelper()
-            ->findUsersReaching(
-                'CHILL_PERSON_SEE',
-                $centerA
-            );
-
-        $usernames = array_map(static fn (User $u) => $u->getUsername(), $users);
-
-        $this->assertContains('center a_social', $usernames);
-    }
-
     public function testGetParentRoles()
     {
         $parentRoles = $this->getAuthorizationHelper()
@@ -272,7 +253,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasCenterInterface::class);
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasScopeInterface::class);
         $entity->getCenter()->willReturn($center);
@@ -338,7 +319,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement(HasCentersInterface::class);
         $entity->willImplement(HasScopesInterface::class);
         $entity->getCenters()->willReturn([$centerA, $centerB]);
@@ -360,7 +341,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement(HasCentersInterface::class);
         $entity->getCenters()->willReturn([$center, $centerB]);
 
@@ -379,7 +360,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasCenterInterface::class);
         $entity->getCenter()->willReturn($center);
 
@@ -403,7 +384,7 @@ final class AuthorizationHelperTest extends KernelTestCase
         ]);
 
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasCenterInterface::class);
         $entity->getCenter()->willReturn($center);
 
@@ -427,7 +408,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasCenterInterface::class);
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasScopeInterface::class);
         $entity->getCenter()->willReturn($centerB);
@@ -448,7 +429,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasCenterInterface::class);
         $entity->getCenter()->willReturn($center);
 
@@ -467,7 +448,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasCenterInterface::class);
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasScopeInterface::class);
         $entity->getCenter()->willReturn($center);
@@ -499,7 +480,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement('\\' . \Chill\MainBundle\Entity\HasCenterInterface::class);
         $entity->getCenter()->willReturn($centerA);
 
@@ -519,7 +500,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement(HasCenterInterface::class);
         $entity->willImplement(HasScopeInterface::class);
         $entity->getCenter()->willReturn($center);
@@ -543,7 +524,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement(HasCentersInterface::class);
         $entity->willImplement(HasScopesInterface::class);
         $entity->getCenters()->willReturn([$centerA, $centerB]);
@@ -566,7 +547,7 @@ final class AuthorizationHelperTest extends KernelTestCase
             ],
         ]);
         $helper = $this->getAuthorizationHelper();
-        $entity = $this->getProphet()->prophesize();
+        $entity = $this->prophesize();
         $entity->willImplement(HasCentersInterface::class);
         $entity->getCenters()->willReturn([$centerB, $centerC]);
 
@@ -579,6 +560,6 @@ final class AuthorizationHelperTest extends KernelTestCase
     private function getAuthorizationHelper()
     {
         return self::$container
-            ->get('chill.main.security.authorization.helper');
+            ->get(AuthorizationHelper::class);
     }
 }