* 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

11 files changed, 442 insertions, 0 deletions

diff --git a/vendor/sebastian/cli-parser/ChangeLog.md b/vendor/sebastian/cli-parser/ChangeLog.md
new file mode 100644
index 000000000..9431ec594
--- /dev/null
+++ b/vendor/sebastian/cli-parser/ChangeLog.md
@@ -0,0 +1,15 @@
+# ChangeLog
+
+All notable changes are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
+
+## [1.0.1] - 2020-09-28
+
+### Changed
+
+* Changed PHP version constraint in `composer.json` from `^7.3 || ^8.0` to `>=7.3`
+
+## [1.0.0] - 2020-08-12
+
+* Initial release
+
+[1.0.0]: https://github.com/sebastianbergmann/cli-parser/compare/bb7bb3297957927962b0a3335befe7b66f7462e9...1.0.0
diff --git a/vendor/sebastian/cli-parser/LICENSE b/vendor/sebastian/cli-parser/LICENSE
new file mode 100644
index 000000000..0e33c0591
--- /dev/null
+++ b/vendor/sebastian/cli-parser/LICENSE
@@ -0,0 +1,33 @@
+sebastian/cli-parser
+
+Copyright (c) 2020, 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/sebastian/cli-parser/README.md b/vendor/sebastian/cli-parser/README.md
new file mode 100644
index 000000000..39c17a72c
--- /dev/null
+++ b/vendor/sebastian/cli-parser/README.md
@@ -0,0 +1,17 @@
+# sebastian/cli-parser
+
+Library for parsing `$_SERVER['argv']`, extracted from `phpunit/phpunit`.
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+```
+composer require sebastian/cli-parser
+```
+
+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 sebastian/cli-parser
+```
diff --git a/vendor/sebastian/cli-parser/composer.json b/vendor/sebastian/cli-parser/composer.json
new file mode 100644
index 000000000..34c376f91
--- /dev/null
+++ b/vendor/sebastian/cli-parser/composer.json
@@ -0,0 +1,41 @@
+{
+    "name": "sebastian/cli-parser",
+    "description": "Library for parsing CLI options",
+    "type": "library",
+    "homepage": "https://github.com/sebastianbergmann/cli-parser",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Sebastian Bergmann",
+            "email": "[email protected]",
+            "role": "lead"
+        }
+    ],
+    "support": {
+        "issues": "https://github.com/sebastianbergmann/cli-parser/issues"
+    },
+    "prefer-stable": true,
+    "require": {
+        "php": ">=7.3"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3"
+    },
+    "config": {
+        "platform": {
+            "php": "7.3.0"
+        },
+        "optimize-autoloader": true,
+        "sort-packages": true
+    },
+    "autoload": {
+        "classmap": [
+            "src/"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0-dev"
+        }
+    }
+}
diff --git a/vendor/sebastian/cli-parser/infection.json b/vendor/sebastian/cli-parser/infection.json
new file mode 100644
index 000000000..09546514f
--- /dev/null
+++ b/vendor/sebastian/cli-parser/infection.json
@@ -0,0 +1,12 @@
+{
+    "source": {
+        "directories": [
+            "src"
+        ]
+    },
+    "mutators": {
+        "@default": true
+    },
+    "minMsi": 100,
+    "minCoveredMsi": 100
+}
diff --git a/vendor/sebastian/cli-parser/src/Parser.php b/vendor/sebastian/cli-parser/src/Parser.php
new file mode 100644
index 000000000..a4f728bc6
--- /dev/null
+++ b/vendor/sebastian/cli-parser/src/Parser.php
@@ -0,0 +1,204 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/cli-parser.
+ *
+ * (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\CliParser;
+
+use function array_map;
+use function array_merge;
+use function array_shift;
+use function array_slice;
+use function assert;
+use function count;
+use function current;
+use function explode;
+use function is_array;
+use function is_int;
+use function is_string;
+use function key;
+use function next;
+use function preg_replace;
+use function reset;
+use function sort;
+use function strlen;
+use function strpos;
+use function strstr;
+use function substr;
+
+final class Parser
+{
+    /**
+     * @psalm-param list<string> $argv
+     * @psalm-param list<string> $longOptions
+     *
+     * @throws AmbiguousOptionException
+     * @throws RequiredOptionArgumentMissingException
+     * @throws OptionDoesNotAllowArgumentException
+     * @throws UnknownOptionException
+     */
+    public function parse(array $argv, string $shortOptions, array $longOptions = null): array
+    {
+        if (empty($argv)) {
+            return [[], []];
+        }
+
+        $options     = [];
+        $nonOptions  = [];
+
+        if ($longOptions) {
+            sort($longOptions);
+        }
+
+        if (isset($argv[0][0]) && $argv[0][0] !== '-') {
+            array_shift($argv);
+        }
+
+        reset($argv);
+
+        $argv = array_map('trim', $argv);
+
+        while (false !== $arg = current($argv)) {
+            $i = key($argv);
+
+            assert(is_int($i));
+
+            next($argv);
+
+            if ($arg === '') {
+                continue;
+            }
+
+            if ($arg === '--') {
+                $nonOptions = array_merge($nonOptions, array_slice($argv, $i + 1));
+
+                break;
+            }
+
+            if ($arg[0] !== '-' || (strlen($arg) > 1 && $arg[1] === '-' && !$longOptions)) {
+                $nonOptions[] = $arg;
+
+                continue;
+            }
+
+            if (strlen($arg) > 1 && $arg[1] === '-' && is_array($longOptions)) {
+                $this->parseLongOption(
+                    substr($arg, 2),
+                    $longOptions,
+                    $options,
+                    $argv
+                );
+            } else {
+                $this->parseShortOption(
+                    substr($arg, 1),
+                    $shortOptions,
+                    $options,
+                    $argv
+                );
+            }
+        }
+
+        return [$options, $nonOptions];
+    }
+
+    /**
+     * @throws RequiredOptionArgumentMissingException
+     */
+    private function parseShortOption(string $arg, string $shortOptions, array &$opts, array &$args): void
+    {
+        $argLength = strlen($arg);
+
+        for ($i = 0; $i < $argLength; $i++) {
+            $option         = $arg[$i];
+            $optionArgument = null;
+
+            if ($arg[$i] === ':' || ($spec = strstr($shortOptions, $option)) === false) {
+                throw new UnknownOptionException('-' . $option);
+            }
+
+            assert(is_string($spec));
+
+            if (strlen($spec) > 1 && $spec[1] === ':') {
+                if ($i + 1 < $argLength) {
+                    $opts[] = [$option, substr($arg, $i + 1)];
+
+                    break;
+                }
+
+                if (!(strlen($spec) > 2 && $spec[2] === ':')) {
+                    $optionArgument = current($args);
+
+                    if (!$optionArgument) {
+                        throw new RequiredOptionArgumentMissingException('-' . $option);
+                    }
+
+                    assert(is_string($optionArgument));
+
+                    next($args);
+                }
+            }
+
+            $opts[] = [$option, $optionArgument];
+        }
+    }
+
+    /**
+     * @psalm-param list<string> $longOptions
+     *
+     * @throws AmbiguousOptionException
+     * @throws RequiredOptionArgumentMissingException
+     * @throws OptionDoesNotAllowArgumentException
+     * @throws UnknownOptionException
+     */
+    private function parseLongOption(string $arg, array $longOptions, array &$opts, array &$args): void
+    {
+        $count          = count($longOptions);
+        $list           = explode('=', $arg);
+        $option         = $list[0];
+        $optionArgument = null;
+
+        if (count($list) > 1) {
+            $optionArgument = $list[1];
+        }
+
+        $optionLength = strlen($option);
+
+        foreach ($longOptions as $i => $longOption) {
+            $opt_start = substr($longOption, 0, $optionLength);
+
+            if ($opt_start !== $option) {
+                continue;
+            }
+
+            $opt_rest = substr($longOption, $optionLength);
+
+            if ($opt_rest !== '' && $i + 1 < $count && $option[0] !== '=' && strpos($longOptions[$i + 1], $option) === 0) {
+                throw new AmbiguousOptionException('--' . $option);
+            }
+
+            if (substr($longOption, -1) === '=') {
+                /* @noinspection StrlenInEmptyStringCheckContextInspection */
+                if (substr($longOption, -2) !== '==' && !strlen((string) $optionArgument)) {
+                    if (false === $optionArgument = current($args)) {
+                        throw new RequiredOptionArgumentMissingException('--' . $option);
+                    }
+
+                    next($args);
+                }
+            } elseif ($optionArgument) {
+                throw new OptionDoesNotAllowArgumentException('--' . $option);
+            }
+
+            $fullOption = '--' . preg_replace('/={1,2}$/', '', $longOption);
+            $opts[]     = [$fullOption, $optionArgument];
+
+            return;
+        }
+
+        throw new UnknownOptionException('--' . $option);
+    }
+}
diff --git a/vendor/sebastian/cli-parser/src/exceptions/AmbiguousOptionException.php b/vendor/sebastian/cli-parser/src/exceptions/AmbiguousOptionException.php
new file mode 100644
index 000000000..a99f63697
--- /dev/null
+++ b/vendor/sebastian/cli-parser/src/exceptions/AmbiguousOptionException.php
@@ -0,0 +1,26 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/cli-parser.
+ *
+ * (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\CliParser;
+
+use function sprintf;
+use RuntimeException;
+
+final class AmbiguousOptionException extends RuntimeException implements Exception
+{
+    public function __construct(string $option)
+    {
+        parent::__construct(
+            sprintf(
+                'Option "%s" is ambiguous',
+                $option
+            )
+        );
+    }
+}
diff --git a/vendor/sebastian/cli-parser/src/exceptions/Exception.php b/vendor/sebastian/cli-parser/src/exceptions/Exception.php
new file mode 100644
index 000000000..f35ad2457
--- /dev/null
+++ b/vendor/sebastian/cli-parser/src/exceptions/Exception.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/cli-parser.
+ *
+ * (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\CliParser;
+
+use Throwable;
+
+interface Exception extends Throwable
+{
+}
diff --git a/vendor/sebastian/cli-parser/src/exceptions/OptionDoesNotAllowArgumentException.php b/vendor/sebastian/cli-parser/src/exceptions/OptionDoesNotAllowArgumentException.php
new file mode 100644
index 000000000..0aad29ac0
--- /dev/null
+++ b/vendor/sebastian/cli-parser/src/exceptions/OptionDoesNotAllowArgumentException.php
@@ -0,0 +1,26 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/cli-parser.
+ *
+ * (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\CliParser;
+
+use function sprintf;
+use RuntimeException;
+
+final class OptionDoesNotAllowArgumentException extends RuntimeException implements Exception
+{
+    public function __construct(string $option)
+    {
+        parent::__construct(
+            sprintf(
+                'Option "%s" does not allow an argument',
+                $option
+            )
+        );
+    }
+}
diff --git a/vendor/sebastian/cli-parser/src/exceptions/RequiredOptionArgumentMissingException.php b/vendor/sebastian/cli-parser/src/exceptions/RequiredOptionArgumentMissingException.php
new file mode 100644
index 000000000..d2a930b62
--- /dev/null
+++ b/vendor/sebastian/cli-parser/src/exceptions/RequiredOptionArgumentMissingException.php
@@ -0,0 +1,26 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/cli-parser.
+ *
+ * (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\CliParser;
+
+use function sprintf;
+use RuntimeException;
+
+final class RequiredOptionArgumentMissingException extends RuntimeException implements Exception
+{
+    public function __construct(string $option)
+    {
+        parent::__construct(
+            sprintf(
+                'Required argument for option "%s" is missing',
+                $option
+            )
+        );
+    }
+}
diff --git a/vendor/sebastian/cli-parser/src/exceptions/UnknownOptionException.php b/vendor/sebastian/cli-parser/src/exceptions/UnknownOptionException.php
new file mode 100644
index 000000000..e98d9fd02
--- /dev/null
+++ b/vendor/sebastian/cli-parser/src/exceptions/UnknownOptionException.php
@@ -0,0 +1,26 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/cli-parser.
+ *
+ * (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\CliParser;
+
+use function sprintf;
+use RuntimeException;
+
+final class UnknownOptionException extends RuntimeException implements Exception
+{
+    public function __construct(string $option)
+    {
+        parent::__construct(
+            sprintf(
+                'Unknown option "%s"',
+                $option
+            )
+        );
+    }
+}