diff --git a/src/Symfony/Component/Workflow/Tests/Validator/StateMachineValidatorTest.php b/src/Symfony/Component/Workflow/Tests/Validator/StateMachineValidatorTest.php
index 149d7d58f8..dccbf38304 100644
--- a/src/Symfony/Component/Workflow/Tests/Validator/StateMachineValidatorTest.php
+++ b/src/Symfony/Component/Workflow/Tests/Validator/StateMachineValidatorTest.php
@@ -94,6 +94,9 @@ class StateMachineValidatorTest extends TestCase
 
         (new StateMachineValidator())->validate($definition, 'foo');
 
+        // the test simply ensures that the validation does not fail (i.e. it does not throw any exceptions)
+        $this->addToAssertionCount(1);
+
         // The graph looks like:
         //
         // +----+     +----+     +---+
diff --git a/src/Symfony/Component/Workflow/Tests/Validator/WorkflowValidatorTest.php b/src/Symfony/Component/Workflow/Tests/Validator/WorkflowValidatorTest.php
index 60b2c7150e..245617b682 100644
--- a/src/Symfony/Component/Workflow/Tests/Validator/WorkflowValidatorTest.php
+++ b/src/Symfony/Component/Workflow/Tests/Validator/WorkflowValidatorTest.php
@@ -28,6 +28,9 @@ class WorkflowValidatorTest extends TestCase
         $definition = $this->createSimpleWorkflowDefinition();
 
         (new WorkflowValidator(true))->validate($definition, 'foo');
+
+        // the test simply ensures that the validation does not fail (i.e. it does not throw any exceptions)
+        $this->addToAssertionCount(1);
     }
 
     /**
@@ -60,5 +63,8 @@ class WorkflowValidatorTest extends TestCase
         $definition = new Definition($places, $transitions);
 
         (new WorkflowValidator())->validate($definition, 'foo');
+
+        // the test simply ensures that the validation does not fail (i.e. it does not throw any exceptions)
+        $this->addToAssertionCount(1);
     }
 }