Make all tests passed

7 years ago · 2f90b5a33f
1 changed files with 1 additions and 1 deletions
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@ -33,7 +33,7 @@ abstract class TestCase extends BaseTestCase
        return $user;
    }

-    protected function assertFileExistsThenDelete($filePath, $message = null)
+    protected function assertFileExistsThenDelete($filePath, $message = '')
    {
        $this->assertTrue(file_exists($filePath), $message);