function testResizeFileNaming() { $file_loc = self::copyTestImage('eastern.jpg'); $filename = TimberImageHelper::get_resize_file_rel($file_loc, 300, 500, 'default'); $upload_dir = wp_upload_dir(); $this->assertEquals($upload_dir['relative'] . $upload_dir['subdir'] . '/eastern-300x500-c-default.jpg', $filename); }