Try to mitigate random crashes in the tests (#428)

* Try to mitigate random crashes in the tests

* Use a delay

* Removed debug code

* Increase the number of test

Author: Nyholm

tests/Integration/LambdaClientTest.php

@@ -67,11 +67,11 @@ public function testInvokeWait(): void
 
         $results = [];
         $expected = [];
-        for ($i = 0; $i < 10; ++$i) {
+        for ($i = 0; $i < 27; ++$i) {
             $expected[] = '"hello ' . $i . '"';
             $results[] = $client->Invoke(new InvocationRequest([
                 'FunctionName' => 'Index',
-                'Payload' => \json_encode(['name' => $i]),
+                'Payload' => \json_encode(['name' => $i, 'delay' => 80 * ($i % 3)]),
             ]));
         }
 

tests/fixtures/lambda/index.js

@@ -1,3 +1,13 @@
 exports.handler = async (event) => {
-    return `hello ${event.name}`;
+    function wait(event){
+        return new Promise((resolve, reject) => {
+            setTimeout(() => resolve(`hello ${event.name}`), event.delay)
+        });
+    }
+
+    if (typeof(event.delay) === "undefined" || event.delay < 1) {
+        event.delay = 1;
+    }
+
+    return wait(event);
 };