Test the 'Options Indexes' instruction within .htaccess. This instruction tells Apache to show the sub directories and files of a directory when there is no defined home page. Without this instruction in .htaccess file the browser would show a HTTP 404 error.

This test will call 'http://<domain>/htaccess/test_content/allowed/indexes/' where there is a .htaccess file with 'Options Indexes' enabled. The test will verify that the files within the directory (except for .htaccess) are listed/visible.

.htaccess File:
Options Indexes