<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Framework\MockObject\Rule;

use PHPUnit\Framework\ExpectationFailedException;
use PHPUnit\Framework\MockObject\Invocation as BaseInvocation;

/**
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
final class InvokedAtLeastOnce extends InvocationOrder
{
    public function toString(): string
    {
        return 'invoked at least once';
    }

    /**
     * Verifies that the current expectation is valid. If everything is OK the
     * code should just return, if not it must throw an exception.
     *
     * @throws ExpectationFailedException
     */
    public function verify(): void
    {
        $count = $this->numberOfInvocations();

        if ($count < 1) {
            throw new ExpectationFailedException(
                'Expected invocation at least once but it never occurred.',
            );
        }
    }

    public function matches(BaseInvocation $invocation): bool
    {
        return true;
    }
}
