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<?php |
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namespace PhpSchool\LearnYouPhp\Exercise; |
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use Faker\Generator; |
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use PhpSchool\PhpWorkshop\Exercise\AbstractExercise; |
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use PhpSchool\PhpWorkshop\Exercise\ExerciseInterface; |
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use PhpSchool\PhpWorkshop\Exercise\TemporaryDirectoryTrait; |
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use PhpSchool\PhpWorkshop\ExerciseCheck\FunctionRequirementsExerciseCheck; |
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use PhpSchool\PhpWorkshop\ExerciseCheck\StdOutExerciseCheck; |
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use Symfony\Component\Filesystem\Filesystem; |
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/** |
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* Class ArrayWeGo |
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* @package PhpSchool\LearnYouPhp\Exercise |
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* @author Michael Woodward <[email protected]> |
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*/ |
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class ArrayWeGo extends AbstractExercise implements |
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ExerciseInterface, |
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StdOutExerciseCheck, |
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FunctionRequirementsExerciseCheck |
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{ |
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use TemporaryDirectoryTrait; |
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/** |
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* @var Filesystem |
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*/ |
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private $filesystem; |
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/** |
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* @var Generator |
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*/ |
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private $faker; |
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/** |
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* @param Filesystem $filesystem |
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* @param Generator $faker |
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*/ |
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public function __construct(Filesystem $filesystem, Generator $faker) |
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{ |
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$this->filesystem = $filesystem; |
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$this->faker = $faker; |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return 'Array We Go!'; |
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} |
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/** |
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* @return string |
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*/ |
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public function getDescription() |
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{ |
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return 'Filter an array of file paths and map to SplFile objects'; |
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} |
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/** |
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* @return array |
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*/ |
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public function getArgs() |
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{ |
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$this->filesystem->mkdir($this->getTemporaryPath()); |
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$fileCount = rand(2, 10); |
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$realFiles = rand(1, $fileCount - 1); |
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$files = []; |
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foreach (range(1, $fileCount) as $index) { |
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$file = sprintf('%s/%s.txt', $this->getTemporaryPath(), $this->faker->uuid); |
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if ($index <= $realFiles) { |
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$this->filesystem->touch($file); |
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} |
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$files[] = $file; |
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} |
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return $files; |
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} |
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/** |
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* @return null |
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*/ |
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public function tearDown() |
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{ |
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$this->filesystem->remove($this->getTemporaryPath()); |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getRequiredFunctions() |
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{ |
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return ['array_shift', 'array_filter', 'array_map']; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getBannedFunctions() |
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{ |
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return ['basename']; |
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} |
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} |
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php-school /
learn-you-php
