Include vendor directory

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Helper/Handler.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Helper;
+
+class Handler
+{
+    private static string $invalidHex = 'Y';
+
+    // A bunch of methods to show that we continue
+    // to capture messages even using PhpUnit 10.
+    public static function suppressed(): bool
+    {
+        return @trigger_error('hello');
+    }
+
+    public static function deprecated(): string
+    {
+        return (string) hexdec(self::$invalidHex);
+    }
+
+    public static function notice(string $value): void
+    {
+        date_default_timezone_set($value);
+    }
+
+    public static function warning(): bool
+    {
+        return file_get_contents(__FILE__ . 'noexist') !== false;
+    }
+
+    public static function userDeprecated(): bool
+    {
+        return trigger_error('hello', E_USER_DEPRECATED);
+    }
+
+    public static function userNotice(): bool
+    {
+        return trigger_error('userNotice', E_USER_NOTICE);
+    }
+
+    public static function userWarning(): bool
+    {
+        return trigger_error('userWarning', E_USER_WARNING);
+    }
+}