diff --git a/src/TestCase.php b/src/TestCase.php
index f21dc59..4de0177 100644
--- a/src/TestCase.php
+++ b/src/TestCase.php
@@ -33,6 +33,7 @@ protected function setUp()
     public function assertPromiseFulfills(PromiseInterface $promise, $timeout = null)
     {
         $failMessage = 'Failed asserting that promise fulfills. ';
+        $this->addToAssertionCount(1);
 
         try {
             return $this->waitForPromise($promise, $timeout);
@@ -41,7 +42,6 @@ public function assertPromiseFulfills(PromiseInterface $promise, $timeout = null
         } catch (Exception $exception) {
             $this->fail($failMessage . 'Promise was rejected.');
         }
-        $this->addToAssertionCount(1);
     }
 
     /**
@@ -75,13 +75,14 @@ public function assertPromiseFulfillsWith(PromiseInterface $promise, $value, $ti
      */
     public function assertPromiseRejects(PromiseInterface $promise, $timeout = null)
     {
+        $this->addToAssertionCount(1);
+
         try {
             $this->waitForPromise($promise, $timeout);
         } catch (Exception $exception) {
             return $exception;
         }
 
-        $this->addToAssertionCount(1);
         $this->fail('Failed asserting that promise rejects. Promise was fulfilled.');
     }
 
@@ -96,9 +97,7 @@ public function assertPromiseRejectsWith(PromiseInterface $promise, $reasonExcep
         $reason = $this->assertPromiseRejects($promise, $timeout);
 
         $this->assertInstanceOf(
-            $reasonExceptionClass,
-            $reason,
-            'Failed asserting that promise rejects with a specified reason.'
+            $reasonExceptionClass, $reason, 'Failed asserting that promise rejects with a specified reason.'
         );
     }