<?php namespace Tests\Support\Config\Filters;
$customfilters->aliases['test-customfilter'] = Tests\Support\Filters\Customfilter::class;

<?php 
namespace Tests\Support\Config\Filters;

$customfilters->aliases['test-customfilter'] = \Tests\Support\Filters\Customfilter::class;

Correct class creation in custom filter
Correct class creation in custom filter

Signed-off-by: devorama <057a94c3eec2d3bbeda2bb18edd6039385c36f6a@users.noreply.github.com>
