Fix Issue #34: Testing 'Internal Server Error (500)'

composer.json

@@ -20,7 +20,7 @@
         "source": "https://github.com/there4/slim-test-helpers"
     },
     "require": {
-        "slim/slim": "3.*",
+        "slim/slim": "~3.1",
         "phpunit/phpunit": "^4.8|5.*",
         "phpunit/dbunit": "2.*",
         "illuminate/database": ">=4.0"

src/There4/Slim/Test/WebTestClient.php

@@ -102,9 +102,9 @@ private function request($method, $path, $data = array(), $optionalHeaders = arr
         $this->request  = new Request($method, $uri, $headers, $cookies, $serverParams, $body);
         $response = new Response();
 
-        // Invoke request
+        // Process request
         $app = $this->app;
-        $this->response = $app($this->request, $response);
+        $this->response = $app->process($this->request, $response);
 
         // Return the application output.
         return (string)$this->response->getBody();

tests/There4Test/Slim/Test/WebTestClientTest.php

@@ -140,4 +140,26 @@ private function getValidUri()
     {
         return '/testing';
     }
+
+    public function testInternalError()
+    {
+        $this->getSlimInstance()->get('/internalerror', function ($request, $response, $args) {
+            throw new \Exception('Testing /internalerror.');
+            return $response;
+        });
+
+        $container = $this->getSlimInstance()->getContainer();
+        $container['errorHandler'] = function ($c) {
+            return function ($request, $response, $exception) use ($c) {
+                $data = array('message' => 'Internal Server Error');
+                return $c['response']->withJson($data, 500);
+            };
+        };
+
+        $client = new WebTestClient($this->getSlimInstance());
+        $client->get('/internalerror');
+        self::assertEquals(500, $client->response->getStatusCode());
+        $data = json_decode($client->response->getBody());
+        self::assertEquals('Internal Server Error', $data->message);
+    }
 }