function testMaxDepth()
{
$source = File_Archive::readMemory('', 'A/B/C/1/A.txt');
$source->next();
$predicate = File_Archive::predMaxDepth(4);
$this->assertTrue($predicate->isTrue($source));
$predicate = File_Archive::predMaxDepth(3);
$this->assertFalse($predicate->isTrue($source));
}