the middle of the idiots

qwen/php/vendor/slim/psr7/tests/Assets/HeaderStack.php

@@ -0,0 +1,95 @@
+<?php
+
+/**
+ * This is a direct copy of zend-diactoros/test/TestAsset/Functions.php and is used to override
+ * header() and headers_sent() so we can test that they do the right thing.
+ */
+
+namespace Slim\Tests\Psr7\Assets;
+
+use function strpos;
+
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * This file exists to allow overriding the various output-related functions
+ * in order to test what happens during the `Server::listen()` cycle.
+ *
+ * These functions include:
+ *
+ * - headers_sent(): we want to always return false so that headers will be
+ *   emitted, and we can test to see their values.
+ * - header(): we want to aggregate calls to this function.
+ *
+ * The HeaderStack class then aggregates that information for us, and the test
+ * harness resets the values pre and post test.
+ *
+ * @see       http://github.com/zendframework/zend-diactoros for the canonical source repository
+ * @copyright Copyright (c) 2015-2016 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License
+ */
+
+class HeaderStack
+{
+    private static array $data = [];
+
+    /**
+     * Reset state
+     */
+    public static function reset()
+    {
+        self::$data = [];
+    }
+
+    /**
+     * Push a header on the stack
+     *
+     * @param string[] $header
+     */
+    public static function push(array $header)
+    {
+        self::$data[] = $header;
+    }
+
+    /**
+     * Return the current header stack
+     *
+     * @return string[][]
+     */
+    public static function stack(): array
+    {
+        return self::$data;
+    }
+
+    /**
+     * Verify if there's a header line on the stack
+     *
+     * @param string $header
+     *
+     * @return bool
+     */
+    public static function has($header): bool
+    {
+        foreach (self::$data as $item) {
+            if ($item['header'] === $header) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Remove occurrences of $header
+     *
+     * @param string $header
+     */
+    public static function remove($header): void
+    {
+        foreach (self::$data as $key => $item) {
+            if (false !== strpos($item['header'], "$header:")) {
+                unset(self::$data[$key]);
+            }
+        }
+    }
+}