diff --git a/src/Entity/Model/Revision.php b/src/Entity/Model/Revision.php
index 472e2c44..b758773a 100644
--- a/src/Entity/Model/Revision.php
+++ b/src/Entity/Model/Revision.php
@@ -80,7 +80,7 @@ public function validatePlacesInTransitions(ExecutionContextInterface $context,
      */
     public function validateStartTransitions(ExecutionContextInterface $context, $payload): void
     {
-        if (count($this->transitions) === 0) {
+        if (0 === count($this->transitions)) {
             return;
         }
 
diff --git a/tests/Model/Generator/StateTest.php b/tests/Model/Generator/StateTest.php
index 6faea4b8..c1701da3 100644
--- a/tests/Model/Generator/StateTest.php
+++ b/tests/Model/Generator/StateTest.php
@@ -3,14 +3,9 @@
 namespace Tienvx\Bundle\MbtBundle\Tests\Model\Generator;
 
 use PHPUnit\Framework\TestCase;
-use SingleColorPetrinet\Model\Color;
-use SingleColorPetrinet\Model\ColorInterface;
 use Tienvx\Bundle\MbtBundle\Exception\OutOfRangeException;
-use Tienvx\Bundle\MbtBundle\Model\Bug\Step;
-use Tienvx\Bundle\MbtBundle\Model\Bug\StepInterface;
 use Tienvx\Bundle\MbtBundle\Model\Generator\State;
 use Tienvx\Bundle\MbtBundle\Model\Generator\StateInterface;
-use Tienvx\Bundle\MbtBundle\Model\Model\Revision\CommandInterface;
 
 /**
  * @covers \Tienvx\Bundle\MbtBundle\Model\Generator\State