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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\Constraint;
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use function mb_stripos;
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use function mb_strtolower;
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use function sprintf;
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use function strpos;
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/**
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 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
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 */
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final class StringContains extends Constraint
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{
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    /**
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     * @var string
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     */
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    private $string;
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    /**
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     * @var bool
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     */
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    private $ignoreCase;
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    public function __construct(string $string, bool $ignoreCase = false)
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    {
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        $this->string     = $string;
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        $this->ignoreCase = $ignoreCase;
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    }
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    /**
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     * Returns a string representation of the constraint.
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     */
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    public function toString(): string
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    {
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        if ($this->ignoreCase) {
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            $string = mb_strtolower($this->string, 'UTF-8');
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        } else {
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            $string = $this->string;
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        }
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        return sprintf(
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            'contains "%s"',
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            $string
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        );
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    }
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    /**
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     * Evaluates the constraint for parameter $other. Returns true if the
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     * constraint is met, false otherwise.
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     *
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     * @param mixed $other value or object to evaluate
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     */
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    protected function matches($other): bool
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    {
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        if ('' === $this->string) {
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            return true;
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        }
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        if ($this->ignoreCase) {
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            /*
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             * We must use the multi byte safe version so we can accurately compare non latin upper characters with
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             * their lowercase equivalents.
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             */
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            return mb_stripos($other, $this->string, 0, 'UTF-8') !== false;
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        }
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        /*
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         * Use the non multi byte safe functions to see if the string is contained in $other.
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         *
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         * This function is very fast and we don't care about the character position in the string.
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         *
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         * Additionally, we want this method to be binary safe so we can check if some binary data is in other binary
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         * data.
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         */
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        return strpos($other, $this->string) !== false;
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    }
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}