diff --git a/tests/BasicTestCase.php b/tests/BasicTestCase.php
index 322570d..4ed9090 100644
--- a/tests/BasicTestCase.php
+++ b/tests/BasicTestCase.php
@@ -17,6 +17,8 @@
 use Psr\Http\Message\RequestInterface;
 use PHPUnit\Framework\TestCase;
 
+error_reporting(E_ALL);
+
 abstract class BasicTestCase extends TestCase {
     /** @var GW2Api $api */
     protected $api;