fixed_compatibility_codeception_with_phpunit.patch

diff --git a/src/Codeception/Test/Cest.php b/src/Codeception/Test/Cest.php
index 20f51f5..133951d 100644
--- a/src/Codeception/Test/Cest.php
+++ b/src/Codeception/Test/Cest.php
@@ -150,7 +150,7 @@ protected function executeTestMethod($I)
         $this->invoke($this->testMethod, [$I, $this->scenario]);
     }
 
-    public function toString()
+    public function toString() : string
     {
         return sprintf('%s: %s', ReflectionHelper::getClassShortName($this->getTestClass()), Message::ucfirst($this->getFeature()));
     }
diff --git a/src/Codeception/Test/Test.php b/src/Codeception/Test/Test.php
index 773f7a3..c00a421 100644
--- a/src/Codeception/Test/Test.php
+++ b/src/Codeception/Test/Test.php
@@ -55,7 +55,7 @@
      *
      * @return mixed
      */
-    abstract public function toString();
+    abstract public function toString() : string;
 
     /**
      * Runs a test and collects its result in a TestResult instance.
@@ -64,7 +64,7 @@
      * @param  \PHPUnit\Framework\TestResult $result
      * @return \PHPUnit\Framework\TestResult
      */
-    final public function run(\PHPUnit\Framework\TestResult $result = null)
+    final public function run(\PHPUnit\Framework\TestResult $result = null) : \PHPUnit\Framework\TestResult
     {
         $this->testResult = $result;