RegexGeneratorTest.php
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RegexGeneratorTest.php
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	<?php
	namespace Eris\Generator;

	use Eris\Random\RandomRange;
	use Eris\Random\RandSource;

	class RegexGeneratorTest extends \PHPUnit\Framework\TestCase
	{
	/**
	* @var int
	*/
	private $size;
	/**
	* @var RandomRange
	*/
	private $rand;

	public static function supportedRegexes()
	{
	return [
	// [".{0,100}"] sometimes generates NULL
	["[a-z0-9]{24}"],
	["[a-z]{1,5}"],
	["^[a-z]$"],
	["a\|b\|c"],
	["\d\s\w"],
	];
	}

	protected function setUp(): void
	{
	$this->size = 10;
	$this->rand = new RandomRange(new RandSource());
	}

	/**
	* @dataProvider supportedRegexes
	*/
	public function testGeneratesOnlyValuesThatMatchTheRegex($expression)
	{
	$generator = new RegexGenerator($expression);
	for ($i = 0; $i < 100; $i++) {
	$value = $generator($this->size, $this->rand)->unbox();
	\Eris\PHPUnitDeprecationHelper::assertMatchesRegularExpression("/{$expression}/", $value);
	}
	}

	public function testShrinkingIsNotImplementedYet()
	{
	$generator = new RegexGenerator(".*");
	$word = GeneratedValueSingle::fromJustValue("something");
	$this->assertEquals($word, $generator->shrink($word));
	}
	}