* add phpunit as a dev dependency

 * add some basic tests for UrlHelper::rewrite_relative()
 * fix UrlHelper::rewrite_relative() to work better on non-absolute
   relative URL paths

9 files changed, 585 insertions, 0 deletions

diff --git a/vendor/phpunit/php-file-iterator/.psalm/baseline.xml b/vendor/phpunit/php-file-iterator/.psalm/baseline.xml
new file mode 100644
index 000000000..8b6cdc245
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/.psalm/baseline.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<files psalm-version="4.x-dev@">
+  <file src="src/Iterator.php">
+    <UndefinedInterfaceMethod occurrences="1">
+      <code>current</code>
+    </UndefinedInterfaceMethod>
+  </file>
+</files>
diff --git a/vendor/phpunit/php-file-iterator/.psalm/config.xml b/vendor/phpunit/php-file-iterator/.psalm/config.xml
new file mode 100644
index 000000000..2a4b16f22
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/.psalm/config.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<psalm
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+    resolveFromConfigFile="false"
+    totallyTyped="false"
+    errorBaseline=".psalm/baseline.xml"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+</psalm>
diff --git a/vendor/phpunit/php-file-iterator/ChangeLog.md b/vendor/phpunit/php-file-iterator/ChangeLog.md
new file mode 100644
index 000000000..44833762a
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/ChangeLog.md
@@ -0,0 +1,144 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
+
+## [3.0.6] - 2021-12-02
+
+### Changed
+
+* [#73](https://github.com/sebastianbergmann/php-file-iterator/pull/73): Micro performance improvements on parsing paths
+
+## [3.0.5] - 2020-09-28
+
+### Changed
+
+* Changed PHP version constraint in `composer.json` from `^7.3 || ^8.0` to `>=7.3`
+
+## [3.0.4] - 2020-07-11
+
+### Fixed
+
+* [#67](https://github.com/sebastianbergmann/php-file-iterator/issues/67): `TypeError` in `SebastianBergmann\FileIterator\Iterator::accept()`
+
+## [3.0.3] - 2020-06-26
+
+### Added
+
+* This component is now supported on PHP 8
+
+## [3.0.2] - 2020-06-15
+
+### Changed
+
+* Tests etc. are now ignored for archive exports
+
+## [3.0.1] - 2020-04-18
+
+### Fixed
+
+* [#64](https://github.com/sebastianbergmann/php-file-iterator/issues/64): Release tarball contains Composer PHAR
+
+## [3.0.0] - 2020-02-07
+
+### Removed
+
+* This component is no longer supported on PHP 7.1 and PHP 7.2
+
+## [2.0.5] - 2021-12-02
+
+### Changed
+
+* [#73](https://github.com/sebastianbergmann/php-file-iterator/pull/73): Micro performance improvements on parsing paths
+
+### Fixed
+
+* [#74](https://github.com/sebastianbergmann/php-file-iterator/pull/74): Document return type of `SebastianBergmann\FileIterator\Iterator::accept()` so that Symfony's `DebugClassLoader` does not trigger a deprecation warning
+
+## [2.0.4] - 2021-07-19
+
+### Changed
+
+* Added `ReturnTypeWillChange` attribute to `SebastianBergmann\FileIterator\Iterator::accept()` because the return type of `\FilterIterator::accept()` will change in PHP 8.1
+
+## [2.0.3] - 2020-11-30
+
+### Changed
+
+* Changed PHP version constraint in `composer.json` from `^7.1` to `>=7.1`
+
+## [2.0.2] - 2018-09-13
+
+### Fixed
+
+* [#48](https://github.com/sebastianbergmann/php-file-iterator/issues/48): Excluding an array that contains false ends up excluding the current working directory
+
+## [2.0.1] - 2018-06-11
+
+### Fixed
+
+* [#46](https://github.com/sebastianbergmann/php-file-iterator/issues/46): Regression with hidden parent directory
+
+## [2.0.0] - 2018-05-28
+
+### Fixed
+
+* [#30](https://github.com/sebastianbergmann/php-file-iterator/issues/30): Exclude is not considered if it is a parent of the base path
+
+### Changed
+
+* This component now uses namespaces
+
+### Removed
+
+* This component is no longer supported on PHP 5.3, PHP 5.4, PHP 5.5, PHP 5.6, and PHP 7.0
+
+## [1.4.5] - 2017-11-27
+
+### Fixed
+
+* [#37](https://github.com/sebastianbergmann/php-file-iterator/issues/37): Regression caused by fix for [#30](https://github.com/sebastianbergmann/php-file-iterator/issues/30)
+
+## [1.4.4] - 2017-11-27
+
+### Fixed
+
+* [#30](https://github.com/sebastianbergmann/php-file-iterator/issues/30): Exclude is not considered if it is a parent of the base path
+
+## [1.4.3] - 2017-11-25
+
+### Fixed
+
+* [#34](https://github.com/sebastianbergmann/php-file-iterator/issues/34): Factory should use canonical directory names
+
+## [1.4.2] - 2016-11-26
+
+No changes
+
+## [1.4.1] - 2015-07-26
+
+No changes
+
+## 1.4.0 - 2015-04-02
+
+### Added
+
+* [#23](https://github.com/sebastianbergmann/php-file-iterator/pull/23): Added support for wildcards (glob) in exclude
+
+[3.0.6]: https://github.com/sebastianbergmann/php-file-iterator/compare/3.0.5...3.0.6
+[3.0.5]: https://github.com/sebastianbergmann/php-file-iterator/compare/3.0.4...3.0.5
+[3.0.4]: https://github.com/sebastianbergmann/php-file-iterator/compare/3.0.3...3.0.4
+[3.0.3]: https://github.com/sebastianbergmann/php-file-iterator/compare/3.0.2...3.0.3
+[3.0.2]: https://github.com/sebastianbergmann/php-file-iterator/compare/3.0.1...3.0.2
+[3.0.1]: https://github.com/sebastianbergmann/php-file-iterator/compare/3.0.0...3.0.1
+[3.0.0]: https://github.com/sebastianbergmann/php-file-iterator/compare/2.0.5...3.0.0
+[2.0.5]: https://github.com/sebastianbergmann/php-file-iterator/compare/2.0.4...2.0.5
+[2.0.4]: https://github.com/sebastianbergmann/php-file-iterator/compare/2.0.3...2.0.4
+[2.0.3]: https://github.com/sebastianbergmann/php-file-iterator/compare/2.0.2...2.0.3
+[2.0.2]: https://github.com/sebastianbergmann/php-file-iterator/compare/2.0.1...2.0.2
+[2.0.1]: https://github.com/sebastianbergmann/php-file-iterator/compare/2.0.0...2.0.1
+[2.0.0]: https://github.com/sebastianbergmann/php-file-iterator/compare/1.4.5...2.0.0
+[1.4.5]: https://github.com/sebastianbergmann/php-file-iterator/compare/1.4.4...1.4.5
+[1.4.4]: https://github.com/sebastianbergmann/php-file-iterator/compare/1.4.3...1.4.4
+[1.4.3]: https://github.com/sebastianbergmann/php-file-iterator/compare/1.4.2...1.4.3
+[1.4.2]: https://github.com/sebastianbergmann/php-file-iterator/compare/1.4.1...1.4.2
+[1.4.1]: https://github.com/sebastianbergmann/php-file-iterator/compare/1.4.0...1.4.1
diff --git a/vendor/phpunit/php-file-iterator/LICENSE b/vendor/phpunit/php-file-iterator/LICENSE
new file mode 100644
index 000000000..51db9163e
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/LICENSE
@@ -0,0 +1,33 @@
+php-file-iterator
+
+Copyright (c) 2009-2021, Sebastian Bergmann <[email protected]>.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in
+   the documentation and/or other materials provided with the
+   distribution.
+
+ * Neither the name of Sebastian Bergmann nor the names of his
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/phpunit/php-file-iterator/README.md b/vendor/phpunit/php-file-iterator/README.md
new file mode 100644
index 000000000..3cbfdaae7
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/README.md
@@ -0,0 +1,14 @@
+[![Build Status](https://travis-ci.org/sebastianbergmann/php-file-iterator.svg?branch=master)](https://travis-ci.org/sebastianbergmann/php-file-iterator)
+
+# php-file-iterator
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+    composer require phpunit/php-file-iterator
+
+If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:
+
+    composer require --dev phpunit/php-file-iterator
+
diff --git a/vendor/phpunit/php-file-iterator/composer.json b/vendor/phpunit/php-file-iterator/composer.json
new file mode 100644
index 000000000..f1b95b3f8
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/composer.json
@@ -0,0 +1,45 @@
+{
+    "name": "phpunit/php-file-iterator",
+    "description": "FilterIterator implementation that filters files based on a list of suffixes.",
+    "type": "library",
+    "keywords": [
+        "iterator",
+        "filesystem"
+    ],
+    "homepage": "https://github.com/sebastianbergmann/php-file-iterator/",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Sebastian Bergmann",
+            "email": "[email protected]",
+            "role": "lead"
+        }
+    ],
+    "support": {
+        "issues": "https://github.com/sebastianbergmann/php-file-iterator/issues"
+    },
+    "config": {
+        "platform": {
+            "php": "7.3.0"
+        },
+        "optimize-autoloader": true,
+        "sort-packages": true
+    },
+    "prefer-stable": true,
+    "require": {
+        "php": ">=7.3"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3"
+    },
+    "autoload": {
+        "classmap": [
+            "src/"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.0-dev"
+        }
+    }
+}
diff --git a/vendor/phpunit/php-file-iterator/src/Facade.php b/vendor/phpunit/php-file-iterator/src/Facade.php
new file mode 100644
index 000000000..87b6588dd
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/src/Facade.php
@@ -0,0 +1,115 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-file-iterator.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\FileIterator;
+
+use const DIRECTORY_SEPARATOR;
+use function array_unique;
+use function count;
+use function dirname;
+use function explode;
+use function is_file;
+use function is_string;
+use function realpath;
+use function sort;
+
+class Facade
+{
+    /**
+     * @param array|string $paths
+     * @param array|string $suffixes
+     * @param array|string $prefixes
+     */
+    public function getFilesAsArray($paths, $suffixes = '', $prefixes = '', array $exclude = [], bool $commonPath = false): array
+    {
+        if (is_string($paths)) {
+            $paths = [$paths];
+        }
+
+        $iterator = (new Factory)->getFileIterator($paths, $suffixes, $prefixes, $exclude);
+
+        $files = [];
+
+        foreach ($iterator as $file) {
+            $file = $file->getRealPath();
+
+            if ($file) {
+                $files[] = $file;
+            }
+        }
+
+        foreach ($paths as $path) {
+            if (is_file($path)) {
+                $files[] = realpath($path);
+            }
+        }
+
+        $files = array_unique($files);
+        sort($files);
+
+        if ($commonPath) {
+            return [
+                'commonPath' => $this->getCommonPath($files),
+                'files'      => $files,
+            ];
+        }
+
+        return $files;
+    }
+
+    protected function getCommonPath(array $files): string
+    {
+        $count = count($files);
+
+        if ($count === 0) {
+            return '';
+        }
+
+        if ($count === 1) {
+            return dirname($files[0]) . DIRECTORY_SEPARATOR;
+        }
+
+        $_files = [];
+
+        foreach ($files as $file) {
+            $_files[] = $_fileParts = explode(DIRECTORY_SEPARATOR, $file);
+
+            if (empty($_fileParts[0])) {
+                $_fileParts[0] = DIRECTORY_SEPARATOR;
+            }
+        }
+
+        $common = '';
+        $done   = false;
+        $j      = 0;
+        $count--;
+
+        while (!$done) {
+            for ($i = 0; $i < $count; $i++) {
+                if ($_files[$i][$j] != $_files[$i + 1][$j]) {
+                    $done = true;
+
+                    break;
+                }
+            }
+
+            if (!$done) {
+                $common .= $_files[0][$j];
+
+                if ($j > 0) {
+                    $common .= DIRECTORY_SEPARATOR;
+                }
+            }
+
+            $j++;
+        }
+
+        return DIRECTORY_SEPARATOR . $common;
+    }
+}
diff --git a/vendor/phpunit/php-file-iterator/src/Factory.php b/vendor/phpunit/php-file-iterator/src/Factory.php
new file mode 100644
index 000000000..08f8de999
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/src/Factory.php
@@ -0,0 +1,91 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-file-iterator.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\FileIterator;
+
+use const GLOB_ONLYDIR;
+use function array_filter;
+use function array_map;
+use function array_merge;
+use function glob;
+use function is_dir;
+use function is_string;
+use function realpath;
+use AppendIterator;
+use RecursiveDirectoryIterator;
+use RecursiveIteratorIterator;
+
+class Factory
+{
+    /**
+     * @param array|string $paths
+     * @param array|string $suffixes
+     * @param array|string $prefixes
+     */
+    public function getFileIterator($paths, $suffixes = '', $prefixes = '', array $exclude = []): AppendIterator
+    {
+        if (is_string($paths)) {
+            $paths = [$paths];
+        }
+
+        $paths   = $this->getPathsAfterResolvingWildcards($paths);
+        $exclude = $this->getPathsAfterResolvingWildcards($exclude);
+
+        if (is_string($prefixes)) {
+            if ($prefixes !== '') {
+                $prefixes = [$prefixes];
+            } else {
+                $prefixes = [];
+            }
+        }
+
+        if (is_string($suffixes)) {
+            if ($suffixes !== '') {
+                $suffixes = [$suffixes];
+            } else {
+                $suffixes = [];
+            }
+        }
+
+        $iterator = new AppendIterator;
+
+        foreach ($paths as $path) {
+            if (is_dir($path)) {
+                $iterator->append(
+                    new Iterator(
+                        $path,
+                        new RecursiveIteratorIterator(
+                            new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::FOLLOW_SYMLINKS | RecursiveDirectoryIterator::SKIP_DOTS)
+                        ),
+                        $suffixes,
+                        $prefixes,
+                        $exclude
+                    )
+                );
+            }
+        }
+
+        return $iterator;
+    }
+
+    protected function getPathsAfterResolvingWildcards(array $paths): array
+    {
+        $_paths = [[]];
+
+        foreach ($paths as $path) {
+            if ($locals = glob($path, GLOB_ONLYDIR)) {
+                $_paths[] = array_map('\realpath', $locals);
+            } else {
+                $_paths[] = [realpath($path)];
+            }
+        }
+
+        return array_filter(array_merge(...$_paths));
+    }
+}
diff --git a/vendor/phpunit/php-file-iterator/src/Iterator.php b/vendor/phpunit/php-file-iterator/src/Iterator.php
new file mode 100644
index 000000000..7eb82ad68
--- /dev/null
+++ b/vendor/phpunit/php-file-iterator/src/Iterator.php
@@ -0,0 +1,119 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-file-iterator.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\FileIterator;
+
+use function array_filter;
+use function array_map;
+use function preg_match;
+use function realpath;
+use function str_replace;
+use function strlen;
+use function strpos;
+use function substr;
+use FilterIterator;
+
+class Iterator extends FilterIterator
+{
+    public const PREFIX = 0;
+
+    public const SUFFIX = 1;
+
+    /**
+     * @var string
+     */
+    private $basePath;
+
+    /**
+     * @var array
+     */
+    private $suffixes = [];
+
+    /**
+     * @var array
+     */
+    private $prefixes = [];
+
+    /**
+     * @var array
+     */
+    private $exclude = [];
+
+    public function __construct(string $basePath, \Iterator $iterator, array $suffixes = [], array $prefixes = [], array $exclude = [])
+    {
+        $this->basePath = realpath($basePath);
+        $this->prefixes = $prefixes;
+        $this->suffixes = $suffixes;
+        $this->exclude  = array_filter(array_map('realpath', $exclude));
+
+        parent::__construct($iterator);
+    }
+
+    public function accept(): bool
+    {
+        $current  = $this->getInnerIterator()->current();
+        $filename = $current->getFilename();
+        $realPath = $current->getRealPath();
+
+        if ($realPath === false) {
+            return false;
+        }
+
+        return $this->acceptPath($realPath) &&
+               $this->acceptPrefix($filename) &&
+               $this->acceptSuffix($filename);
+    }
+
+    private function acceptPath(string $path): bool
+    {
+        // Filter files in hidden directories by checking path that is relative to the base path.
+        if (preg_match('=/\.[^/]*/=', str_replace($this->basePath, '', $path))) {
+            return false;
+        }
+
+        foreach ($this->exclude as $exclude) {
+            if (strpos($path, $exclude) === 0) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    private function acceptPrefix(string $filename): bool
+    {
+        return $this->acceptSubString($filename, $this->prefixes, self::PREFIX);
+    }
+
+    private function acceptSuffix(string $filename): bool
+    {
+        return $this->acceptSubString($filename, $this->suffixes, self::SUFFIX);
+    }
+
+    private function acceptSubString(string $filename, array $subStrings, int $type): bool
+    {
+        if (empty($subStrings)) {
+            return true;
+        }
+
+        $matched = false;
+
+        foreach ($subStrings as $string) {
+            if (($type === self::PREFIX && strpos($filename, $string) === 0) ||
+                ($type === self::SUFFIX &&
+                 substr($filename, -1 * strlen($string)) === $string)) {
+                $matched = true;
+
+                break;
+            }
+        }
+
+        return $matched;
+    }
+}