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Revision Autor Zeilennr. Zeile
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<?php declare(strict_types=1);
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/*
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 * This file is part of PHPUnit.
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 *
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 * (c) Sebastian Bergmann <sebastian@phpunit.de>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace PHPUnit\Framework;
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use function assert;
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use function count;
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use RecursiveIterator;
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/**
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 * @template-implements RecursiveIterator<int, Test>
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 *
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 * @internal This class is not covered by the backward compatibility promise for PHPUnit
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 */
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final class TestSuiteIterator implements RecursiveIterator
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{
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    /**
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     * @var int
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     */
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    private $position = 0;
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    /**
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     * @var Test[]
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     */
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    private $tests;
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    public function __construct(TestSuite $testSuite)
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    {
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        $this->tests = $testSuite->tests();
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    }
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    public function rewind(): void
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    {
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        $this->position = 0;
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    }
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    public function valid(): bool
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    {
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        return $this->position < count($this->tests);
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    }
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    public function key(): int
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    {
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        return $this->position;
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    }
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    public function current(): Test
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    {
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        return $this->tests[$this->position];
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    }
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    public function next(): void
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    {
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        $this->position++;
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    }
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    /**
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     * @throws NoChildTestSuiteException
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     */
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    public function getChildren(): self
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    {
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        if (!$this->hasChildren()) {
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            throw new NoChildTestSuiteException(
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                'The current item is not a TestSuite instance and therefore does not have any children.'
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            );
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        }
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        $current = $this->current();
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        assert($current instanceof TestSuite);
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        return new self($current);
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    }
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    public function hasChildren(): bool
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    {
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        return $this->valid() && $this->current() instanceof TestSuite;
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    }
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}