[Runtime] Fix test for env var names

Author: maxhelias

Tests/phpt/runtime-options.php

@@ -1,13 +1,15 @@
 <?php
 
 $_SERVER['APP_RUNTIME_OPTIONS'] = [
-    'env_var_names' => [
-        'env_key' => 'ENV_MODE',
-        'debug_key' => 'DEBUG_MODE',
-    ],
+    'env_var_name' => 'ENV_MODE',
+    'debug_var_name' => 'DEBUG_MODE',
 ];
 require __DIR__.'/autoload.php';
 
 return function (array $context): void {
-    echo 'Env mode ', $context['ENV_MODE'], ', debug mode ', $context['DEBUG_MODE'];
+    if (isset($context['APP_ENV']) || isset($context['APP_DEBUG'])) {
+        echo 'An error occurred on the variable name options.';
+    } else {
+        echo 'Env mode ', $context['ENV_MODE'], ', debug mode ', $context['DEBUG_MODE'];
+    }
 };