function testOr()
{
$source = File_Archive::readMemory('', 'A.txt');
$source->next();
$predicate = File_Archive::predOr(File_Archive::predFalse(), File_Archive::predFalse(), File_Archive::predTrue());
$this->assertTrue($predicate->isTrue($source));
$predicate = File_Archive::predAnd(File_Archive::predFalse(), File_Archive::predFalse());
$this->assertFalse($predicate->isTrue($source));
}