public function testFetchByInput()
{
$utxo = new Utxo(new OutPoint(new Buffer('a', 32), 0), new TransactionOutput(1, new Script()));
$wantOutpoint = $utxo->getOutPoint();
$input = new TransactionInput($wantOutpoint, new Script(), 0);
$view = new UtxoView([$utxo]);
$result = $view->fetchByInput($input);
$this->assertSame($utxo, $result);
}
/**
* @param UtxoView $utxoView
* @param TransactionInterface $tx
* @return ScriptValidationInterface
*/
public function queue(UtxoView $utxoView, TransactionInterface $tx)
{
for ($i = 0, $c = count($tx->getInputs()); $i < $c; $i++) {
$output = $utxoView->fetchByInput($tx->getInput($i))->getOutput();
$witness = isset($tx->getWitnesses()[$i]) ? $tx->getWitness($i) : null;
$this->results[] = $this->consensus->verify($tx, $output->getScript(), $i, $output->getValue(), $witness);
}
return $this;
}
/**
* @param UtxoView $utxoView
* @param TransactionInterface $tx
* @return ScriptValidationInterface
*/
public function queue(UtxoView $utxoView, TransactionInterface $tx)
{
$hex = $tx->getHex();
$t = ['txid' => spl_object_hash($tx), 'tx' => $hex, 'scripts' => []];
for ($i = 0, $c = count($tx->getInputs()); $i < $c; $i++) {
$output = $utxoView->fetchByInput($tx->getInput($i))->getOutput();
$witness = isset($tx->getWitnesses()[$i]) ? $tx->getWitness($i) : null;
$t['scripts'][] = $output->getScript()->getHex();
}
$this->results[] = $t;
return $this;
}
/**
* @param UtxoView $view
* @param TransactionInterface $tx
* @param int $spendHeight
* @return $this
*/
public function checkContextualInputs(UtxoView $view, TransactionInterface $tx, $spendHeight)
{
$valueIn = gmp_init(0);
for ($i = 0, $nInputs = count($tx->getInputs()); $i < $nInputs; $i++) {
/*if ($out->isCoinbase()) {
// todo: cb / height
if ($spendHeight - $out->getHeight() < $this->params->coinbaseMaturityAge()) {
return false;
}
}*/
$value = gmp_init($view->fetchByInput($tx->getInput($i))->getOutput()->getValue(), 10);
$valueIn = $this->math->add($valueIn, $value);
$this->consensus->checkAmount($valueIn);
}
$valueOut = gmp_init(0);
foreach ($tx->getOutputs() as $output) {
$valueOut = $this->math->add($valueOut, gmp_init($output->getValue(), 10));
$this->consensus->checkAmount($valueOut);
}
if ($this->math->cmp($valueIn, $valueOut) < 0) {
throw new \RuntimeException('Value-in is less than value-out');
}
$fee = $this->math->sub($valueIn, $valueOut);
$this->consensus->checkAmount($fee);
return $this;
}
