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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\MockObject;
use function strtolower;
use Exception;
use PHPUnit\Framework\MockObject\Builder\InvocationMocker;
use PHPUnit\Framework\MockObject\Rule\InvocationOrder;
use Throwable;
/**
* @internal This class is not covered by the backward compatibility promise for PHPUnit
*/
final class InvocationHandler
{
/**
* @var Matcher[]
*/
private $matchers = [];
/**
* @var Matcher[]
*/
private $matcherMap = [];
/**
* @var ConfigurableMethod[]
*/
private $configurableMethods;
/**
* @var bool
*/
private $returnValueGeneration;
/**
* @var Throwable
*/
private $deferredError;
public function __construct(array $configurableMethods, bool $returnValueGeneration)
{
$this->configurableMethods = $configurableMethods;
$this->returnValueGeneration = $returnValueGeneration;
}
public function hasMatchers(): bool
{
foreach ($this->matchers as $matcher) {
if ($matcher->hasMatchers()) {
return true;
}
}
return false;
}
/**
* Looks up the match builder with identification $id and returns it.
*
* @param string $id The identification of the match builder
*/
public function lookupMatcher(string $id): ?Matcher
{
if (isset($this->matcherMap[$id])) {
return $this->matcherMap[$id];
}
return null;
}
/**
* Registers a matcher with the identification $id. The matcher can later be
* looked up using lookupMatcher() to figure out if it has been invoked.
*
* @param string $id The identification of the matcher
* @param Matcher $matcher The builder which is being registered
*
* @throws MatcherAlreadyRegisteredException
*/
public function registerMatcher(string $id, Matcher $matcher): void
{
if (isset($this->matcherMap[$id])) {
throw new MatcherAlreadyRegisteredException($id);
}
$this->matcherMap[$id] = $matcher;
}
public function expects(InvocationOrder $rule): InvocationMocker
{
$matcher = new Matcher($rule);
$this->addMatcher($matcher);
return new InvocationMocker(
$this,
$matcher,
...$this->configurableMethods
);
}
/**
* @throws Exception
* @throws RuntimeException
*/
public function invoke(Invocation $invocation)
{
$exception = null;
$hasReturnValue = false;
$returnValue = null;
foreach ($this->matchers as $match) {
try {
if ($match->matches($invocation)) {
$value = $match->invoked($invocation);
if (!$hasReturnValue) {
$returnValue = $value;
$hasReturnValue = true;
}
}
} catch (Exception $e) {
$exception = $e;
}
}
if ($exception !== null) {
throw $exception;
}
if ($hasReturnValue) {
return $returnValue;
}
if (!$this->returnValueGeneration) {
$exception = new ReturnValueNotConfiguredException($invocation);
if (strtolower($invocation->getMethodName()) === '__tostring') {
$this->deferredError = $exception;
return '';
}
throw $exception;
}
return $invocation->generateReturnValue();
}
public function matches(Invocation $invocation): bool
{
foreach ($this->matchers as $matcher) {
if (!$matcher->matches($invocation)) {
return false;
}
}
return true;
}
/**
* @throws Throwable
*/
public function verify(): void
{
foreach ($this->matchers as $matcher) {
$matcher->verify();
}
if ($this->deferredError) {
throw $this->deferredError;
}
}
private function addMatcher(Matcher $matcher): void
{
$this->matchers[] = $matcher;
}
}
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