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system/Test/PhpStreamWrapper.php

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+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Test;
+
+/**
+ * StreamWrapper for php protocol
+ *
+ * This class is used for mocking `php://stdin`.
+ *
+ * See https://www.php.net/manual/en/class.streamwrapper.php
+ */
+final class PhpStreamWrapper
+{
+    /**
+     * @var resource|null
+     */
+    public $context;
+
+    private static string $content = '';
+    private int $position          = 0;
+
+    public static function setContent(string $content)
+    {
+        self::$content = $content;
+    }
+
+    public static function register()
+    {
+        stream_wrapper_unregister('php');
+        stream_wrapper_register('php', self::class);
+    }
+
+    public static function restore()
+    {
+        stream_wrapper_restore('php');
+    }
+
+    public function stream_open(): bool
+    {
+        return true;
+    }
+
+    /**
+     * @return false|string
+     */
+    public function stream_read(int $count)
+    {
+        $return = substr(self::$content, $this->position, $count);
+        $this->position += strlen($return);
+
+        return $return;
+    }
+
+    /**
+     * @return array|false
+     */
+    public function stream_stat()
+    {
+        return [];
+    }
+
+    public function stream_eof(): bool
+    {
+        return $this->position >= strlen(self::$content);
+    }
+}