From 4cdf5f23f9775c26ec9c2b516e7c65fd5857720c Mon Sep 17 00:00:00 2001
From: Nyholm <tobias.nyholm@gmail.com>
Date: Sat, 4 Sep 2021 19:12:18 -0700
Subject: [PATCH] Let LambdaRuntime::processNextEvent() return boolean

---
 src/Runtime/LambdaRuntime.php       | 7 ++++++-
 tests/Runtime/LambdaRuntimeTest.php | 6 ++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/Runtime/LambdaRuntime.php b/src/Runtime/LambdaRuntime.php
index a295e449d..0ad42b564 100755
--- a/src/Runtime/LambdaRuntime.php
+++ b/src/Runtime/LambdaRuntime.php
@@ -89,9 +89,10 @@ private function closeReturnHandler(): void
      *     $lambdaRuntime->processNextEvent(function ($event, Context $context) {
      *         return 'Hello ' . $event['name'] . '. We have ' . $context->getRemainingTimeInMillis()/1000 . ' seconds left';
      *     });
+     * @return bool true if event was successfully handled
      * @throws Exception
      */
-    public function processNextEvent($handler): void
+    public function processNextEvent($handler): bool
     {
         [$event, $context] = $this->waitNextInvocation();
         \assert($context instanceof Context);
@@ -104,7 +105,11 @@ public function processNextEvent($handler): void
             $this->sendResponse($context->getAwsRequestId(), $result);
         } catch (\Throwable $e) {
             $this->signalFailure($context->getAwsRequestId(), $e);
+
+            return false;
         }
+
+        return true;
     }
 
     /**
diff --git a/tests/Runtime/LambdaRuntimeTest.php b/tests/Runtime/LambdaRuntimeTest.php
index f72f0a56d..f91fd63c4 100644
--- a/tests/Runtime/LambdaRuntimeTest.php
+++ b/tests/Runtime/LambdaRuntimeTest.php
@@ -48,10 +48,11 @@ public function test basic behavior()
     {
         $this->givenAnEvent(['Hello' => 'world!']);
 
-        $this->runtime->processNextEvent(function () {
+        $output = $this->runtime->processNextEvent(function () {
             return ['hello' => 'world'];
         });
 
+        $this->assertTrue($output);
         $this->assertInvocationResult(['hello' => 'world']);
     }
 
@@ -73,10 +74,11 @@ public function test exceptions in the handler result in an invocation 
     {
         $this->givenAnEvent(['Hello' => 'world!']);
 
-        $this->runtime->processNextEvent(function () {
+        $output = $this->runtime->processNextEvent(function () {
             throw new \RuntimeException('This is an exception');
         });
 
+        $this->assertFalse($output);
         $this->assertInvocationErrorResult('RuntimeException', 'This is an exception');
         $this->assertErrorInLogs('RuntimeException', 'This is an exception');
     }