function testUInt()
{
$v = new Valid_UInt();
$v->disableFeedback();
$this->assertTrue($v->validate('0'));
$this->assertTrue($v->validate('1'));
$this->assertTrue($v->validate('2147483647'));
$this->assertFalse($v->validate('-1'));
// With a value lower than -2^31 it may imply a int overflow that may
// generate a positive int (in this case: 2^31-1).
$this->assertFalse($v->validate('-2147483649'));
$this->assertFalse($v->validate('0.5'));
$this->assertFalse($v->validate('toto'));
}
