query_vars crashes rewrite_rules_array

Hi Guys,

Want something pretty simple, basically wanna redirect every page to the index.php so i can dynamically load it there. So added this to my function.php

add_filter('rewrite_rules_array', 'slug_rewrite_rules_flush');

function slug_rewrite_rules_flush($rules) {

	$newrules = array();

	$new_rules['(.*)/?$'] = 'index.php?test=test';

	return $new_rules+$rules;
}

No problem, worked fine. However, I also want to be able to use the test variable I’m sending along. So added a query_vars hook.

add_filter('query_vars','slug_rewrite_vars');

function slug_rewrite_vars($vars) {

	$vars[] = 'test';

	return $vars;
}

Problem is that when I add this, I get a totally white page, not errors, nothing. When I change ‘test’ inside the slug_rewrite_vars function to anything not related to test. So for example:

add_filter('query_vars','slug_rewrite_vars');

function slug_rewrite_vars($vars) {

	$vars[] = 'ChangedThisVariable';

	return $vars;
}

…then it works again, but of course I cannot $_GET the test variable. Anyone knows what I’m doing wrong?