* 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

12 files changed, 608 insertions, 0 deletions

diff --git a/vendor/phpunit/php-timer/.psalm/baseline.xml b/vendor/phpunit/php-timer/.psalm/baseline.xml
new file mode 100644
index 000000000..77e688e07
--- /dev/null
+++ b/vendor/phpunit/php-timer/.psalm/baseline.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<files psalm-version="4.0.1@b1e2e30026936ef8d5bf6a354d1c3959b6231f44"/>
diff --git a/vendor/phpunit/php-timer/.psalm/config.xml b/vendor/phpunit/php-timer/.psalm/config.xml
new file mode 100644
index 000000000..15abef058
--- /dev/null
+++ b/vendor/phpunit/php-timer/.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="true"
+    errorBaseline=".psalm/baseline.xml"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+</psalm>
diff --git a/vendor/phpunit/php-timer/ChangeLog.md b/vendor/phpunit/php-timer/ChangeLog.md
new file mode 100644
index 000000000..34ef7d1d7
--- /dev/null
+++ b/vendor/phpunit/php-timer/ChangeLog.md
@@ -0,0 +1,138 @@
+# ChangeLog
+
+All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
+
+## [5.0.3] - 2020-10-26
+
+### Fixed
+
+* `SebastianBergmann\Timer\Exception` now correctly extends `\Throwable`
+
+## [5.0.2] - 2020-09-28
+
+### Changed
+
+* Changed PHP version constraint in `composer.json` from `^7.3 || ^8.0` to `>=7.3`
+
+## [5.0.1] - 2020-06-26
+
+### Added
+
+* This component is now supported on PHP 8
+
+## [5.0.0] - 2020-06-07
+
+### Changed
+
+* Parameter type for `SebastianBergmann\Timer\Duration::fromMicroseconds()` was changed from `int` to `float` 
+* Parameter type for `SebastianBergmann\Timer\Duration::fromNanoseconds()` was changed from `int` to `float`
+* Return type for `SebastianBergmann\Timer\Duration::asNanoseconds()` was changed from `int` to `float`
+
+### Fixed
+
+* [#31](https://github.com/sebastianbergmann/php-timer/issues/31): Type Error on 32-bit systems (where `hrtime()` returns `float` instead of `int`)
+
+## [4.0.0] - 2020-06-01
+
+### Added
+
+* Introduced `Duration` value object for encapsulating a duration with nanosecond granularity
+* Introduced `ResourceUsageFormatter` object for formatting resource usage with option to explicitly pass a duration (instead of looking at the unreliable `$_SERVER['REQUEST_TIME_FLOAT']` variable)
+
+### Changed
+
+* The methods of `Timer` are no longer static
+* `Timer::stop()` now returns a `Duration` value object
+
+### Removed
+
+* Functionality that is now implemented in `Duration` and `ResourceUsageFormatter` has been removed from `Timer`
+
+## [3.1.4] - 2020-04-20
+
+### Changed
+
+* `Timer::timeSinceStartOfRequest()` no longer tries `$_SERVER['REQUEST_TIME']` when `$_SERVER['REQUEST_TIME_FLOAT']` is not available (`$_SERVER['REQUEST_TIME_FLOAT']` was added in PHP 5.4 and this library requires PHP 7.3)
+* Improved exception messages when `$_SERVER['REQUEST_TIME_FLOAT']` is not set or is not of type `float`
+
+### Changed
+
+## [3.1.3] - 2020-04-20
+
+### Changed
+
+* `Timer::timeSinceStartOfRequest()` now raises an exception if `$_SERVER['REQUEST_TIME_FLOAT']` does not contain a `float` (or `$_SERVER['REQUEST_TIME']` does not contain an `int`)
+
+## [3.1.2] - 2020-04-17
+
+### Changed
+
+* Improved the fix for [#30](https://github.com/sebastianbergmann/php-timer/issues/30) and restored usage of `hrtime()`
+
+## [3.1.1] - 2020-04-17
+
+### Fixed
+
+* [#30](https://github.com/sebastianbergmann/php-timer/issues/30): Resolution of time returned by `Timer::stop()` is different than before (this reverts using `hrtime()` instead of `microtime()`)
+
+## [3.1.0] - 2020-04-17
+
+### Added
+
+* `Timer::secondsToShortTimeString()` as alternative to `Timer::secondsToTimeString()`
+
+### Changed
+
+* `Timer::start()` and `Timer::stop()` now use `hrtime()` (high resolution monotonic timer) instead of `microtime()`
+* `Timer::timeSinceStartOfRequest()` now uses `Timer::secondsToShortTimeString()` for time formatting
+* Improved formatting of `Timer::secondsToTimeString()` result
+
+## [3.0.0] - 2020-02-07
+
+### Removed
+
+* This component is no longer supported on PHP 7.1 and PHP 7.2
+
+## [2.1.2] - 2019-06-07
+
+### Fixed
+
+* [#21](https://github.com/sebastianbergmann/php-timer/pull/21): Formatting of memory consumption does not work on 32bit systems
+
+## [2.1.1] - 2019-02-20
+
+### Changed
+
+* Improved formatting of memory consumption for `resourceUsage()`
+
+## [2.1.0] - 2019-02-20
+
+### Changed
+
+* Improved formatting of memory consumption for `resourceUsage()`
+
+## [2.0.0] - 2018-02-01
+
+### 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
+
+[5.0.3]: https://github.com/sebastianbergmann/php-timer/compare/5.0.2...5.0.3
+[5.0.2]: https://github.com/sebastianbergmann/php-timer/compare/5.0.1...5.0.2
+[5.0.1]: https://github.com/sebastianbergmann/php-timer/compare/5.0.0...5.0.1
+[5.0.0]: https://github.com/sebastianbergmann/php-timer/compare/4.0.0...5.0.0
+[4.0.0]: https://github.com/sebastianbergmann/php-timer/compare/3.1.4...4.0.0
+[3.1.4]: https://github.com/sebastianbergmann/php-timer/compare/3.1.3...3.1.4
+[3.1.3]: https://github.com/sebastianbergmann/php-timer/compare/3.1.2...3.1.3
+[3.1.2]: https://github.com/sebastianbergmann/php-timer/compare/3.1.1...3.1.2
+[3.1.1]: https://github.com/sebastianbergmann/php-timer/compare/3.1.0...3.1.1
+[3.1.0]: https://github.com/sebastianbergmann/php-timer/compare/3.0.0...3.1.0
+[3.0.0]: https://github.com/sebastianbergmann/php-timer/compare/2.1.2...3.0.0
+[2.1.2]: https://github.com/sebastianbergmann/php-timer/compare/2.1.1...2.1.2
+[2.1.1]: https://github.com/sebastianbergmann/php-timer/compare/2.1.0...2.1.1
+[2.1.0]: https://github.com/sebastianbergmann/php-timer/compare/2.0.0...2.1.0
+[2.0.0]: https://github.com/sebastianbergmann/php-timer/compare/1.0.9...2.0.0
diff --git a/vendor/phpunit/php-timer/LICENSE b/vendor/phpunit/php-timer/LICENSE
new file mode 100644
index 000000000..4193d8ae6
--- /dev/null
+++ b/vendor/phpunit/php-timer/LICENSE
@@ -0,0 +1,33 @@
+phpunit/php-timer
+
+Copyright (c) 2010-2020, 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/phpunit/php-timer/README.md b/vendor/phpunit/php-timer/README.md
new file mode 100644
index 000000000..a7d1e70de
--- /dev/null
+++ b/vendor/phpunit/php-timer/README.md
@@ -0,0 +1,104 @@
+# phpunit/php-timer
+
+[![CI Status](https://github.com/sebastianbergmann/php-timer/workflows/CI/badge.svg)](https://github.com/sebastianbergmann/php-timer/actions)
+[![Type Coverage](https://shepherd.dev/github/sebastianbergmann/php-timer/coverage.svg)](https://shepherd.dev/github/sebastianbergmann/php-timer)
+
+Utility class for timing things, factored out of PHPUnit into a stand-alone component.
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+```
+composer require phpunit/php-timer
+```
+
+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-timer
+```
+
+## Usage
+
+### Basic Timing
+
+```php
+require __DIR__ . '/vendor/autoload.php';
+
+use SebastianBergmann\Timer\Timer;
+
+$timer = new Timer;
+
+$timer->start();
+
+foreach (\range(0, 100000) as $i) {
+    // ...
+}
+
+$duration = $timer->stop();
+
+var_dump(get_class($duration));
+var_dump($duration->asString());
+var_dump($duration->asSeconds());
+var_dump($duration->asMilliseconds());
+var_dump($duration->asMicroseconds());
+var_dump($duration->asNanoseconds());
+```
+
+The code above yields the output below:
+
+```
+string(32) "SebastianBergmann\Timer\Duration"
+string(9) "00:00.002"
+float(0.002851062)
+float(2.851062)
+float(2851.062)
+int(2851062)
+```
+
+### Resource Consumption
+
+#### Explicit duration
+
+```php
+require __DIR__ . '/vendor/autoload.php';
+
+use SebastianBergmann\Timer\ResourceUsageFormatter;
+use SebastianBergmann\Timer\Timer;
+
+$timer = new Timer;
+$timer->start();
+
+foreach (\range(0, 100000) as $i) {
+    // ...
+}
+
+print (new ResourceUsageFormatter)->resourceUsage($timer->stop());
+```
+
+The code above yields the output below:
+
+```
+Time: 00:00.002, Memory: 6.00 MB
+```
+
+#### Duration since PHP Startup (using unreliable `$_SERVER['REQUEST_TIME_FLOAT']`)
+
+```php
+require __DIR__ . '/vendor/autoload.php';
+
+use SebastianBergmann\Timer\ResourceUsageFormatter;
+
+foreach (\range(0, 100000) as $i) {
+    // ...
+}
+
+print (new ResourceUsageFormatter)->resourceUsageSinceStartOfRequest();
+```
+
+The code above yields the output below:
+
+```
+Time: 00:00.002, Memory: 6.00 MB
+```
diff --git a/vendor/phpunit/php-timer/composer.json b/vendor/phpunit/php-timer/composer.json
new file mode 100644
index 000000000..001701c24
--- /dev/null
+++ b/vendor/phpunit/php-timer/composer.json
@@ -0,0 +1,45 @@
+{
+    "name": "phpunit/php-timer",
+    "description": "Utility class for timing",
+    "type": "library",
+    "keywords": [
+        "timer"
+    ],
+    "homepage": "https://github.com/sebastianbergmann/php-timer/",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Sebastian Bergmann",
+            "email": "[email protected]",
+            "role": "lead"
+        }
+    ],
+    "support": {
+        "issues": "https://github.com/sebastianbergmann/php-timer/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": "5.0-dev"
+        }
+    }
+}
+
diff --git a/vendor/phpunit/php-timer/src/Duration.php b/vendor/phpunit/php-timer/src/Duration.php
new file mode 100644
index 000000000..e52bf018f
--- /dev/null
+++ b/vendor/phpunit/php-timer/src/Duration.php
@@ -0,0 +1,109 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-timer.
+ *
+ * (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\Timer;
+
+use function floor;
+use function sprintf;
+
+/**
+ * @psalm-immutable
+ */
+final class Duration
+{
+    /**
+     * @var float
+     */
+    private $nanoseconds;
+
+    /**
+     * @var int
+     */
+    private $hours;
+
+    /**
+     * @var int
+     */
+    private $minutes;
+
+    /**
+     * @var int
+     */
+    private $seconds;
+
+    /**
+     * @var int
+     */
+    private $milliseconds;
+
+    public static function fromMicroseconds(float $microseconds): self
+    {
+        return new self($microseconds * 1000);
+    }
+
+    public static function fromNanoseconds(float $nanoseconds): self
+    {
+        return new self($nanoseconds);
+    }
+
+    private function __construct(float $nanoseconds)
+    {
+        $this->nanoseconds     = $nanoseconds;
+        $timeInMilliseconds    = $nanoseconds / 1000000;
+        $hours                 = floor($timeInMilliseconds / 60 / 60 / 1000);
+        $hoursInMilliseconds   = $hours * 60 * 60 * 1000;
+        $minutes               = floor($timeInMilliseconds / 60 / 1000) % 60;
+        $minutesInMilliseconds = $minutes * 60 * 1000;
+        $seconds               = floor(($timeInMilliseconds - $hoursInMilliseconds - $minutesInMilliseconds) / 1000);
+        $secondsInMilliseconds = $seconds * 1000;
+        $milliseconds          = $timeInMilliseconds - $hoursInMilliseconds - $minutesInMilliseconds - $secondsInMilliseconds;
+        $this->hours           = (int) $hours;
+        $this->minutes         = $minutes;
+        $this->seconds         = (int) $seconds;
+        $this->milliseconds    = (int) $milliseconds;
+    }
+
+    public function asNanoseconds(): float
+    {
+        return $this->nanoseconds;
+    }
+
+    public function asMicroseconds(): float
+    {
+        return $this->nanoseconds / 1000;
+    }
+
+    public function asMilliseconds(): float
+    {
+        return $this->nanoseconds / 1000000;
+    }
+
+    public function asSeconds(): float
+    {
+        return $this->nanoseconds / 1000000000;
+    }
+
+    public function asString(): string
+    {
+        $result = '';
+
+        if ($this->hours > 0) {
+            $result = sprintf('%02d', $this->hours) . ':';
+        }
+
+        $result .= sprintf('%02d', $this->minutes) . ':';
+        $result .= sprintf('%02d', $this->seconds);
+
+        if ($this->milliseconds > 0) {
+            $result .= '.' . sprintf('%03d', $this->milliseconds);
+        }
+
+        return $result;
+    }
+}
diff --git a/vendor/phpunit/php-timer/src/ResourceUsageFormatter.php b/vendor/phpunit/php-timer/src/ResourceUsageFormatter.php
new file mode 100644
index 000000000..ad7926277
--- /dev/null
+++ b/vendor/phpunit/php-timer/src/ResourceUsageFormatter.php
@@ -0,0 +1,73 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-timer.
+ *
+ * (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\Timer;
+
+use function is_float;
+use function memory_get_peak_usage;
+use function microtime;
+use function sprintf;
+
+final class ResourceUsageFormatter
+{
+    /**
+     * @psalm-var array<string,int>
+     */
+    private const SIZES = [
+        'GB' => 1073741824,
+        'MB' => 1048576,
+        'KB' => 1024,
+    ];
+
+    public function resourceUsage(Duration $duration): string
+    {
+        return sprintf(
+            'Time: %s, Memory: %s',
+            $duration->asString(),
+            $this->bytesToString(memory_get_peak_usage(true))
+        );
+    }
+
+    /**
+     * @throws TimeSinceStartOfRequestNotAvailableException
+     */
+    public function resourceUsageSinceStartOfRequest(): string
+    {
+        if (!isset($_SERVER['REQUEST_TIME_FLOAT'])) {
+            throw new TimeSinceStartOfRequestNotAvailableException(
+                'Cannot determine time at which the request started because $_SERVER[\'REQUEST_TIME_FLOAT\'] is not available'
+            );
+        }
+
+        if (!is_float($_SERVER['REQUEST_TIME_FLOAT'])) {
+            throw new TimeSinceStartOfRequestNotAvailableException(
+                'Cannot determine time at which the request started because $_SERVER[\'REQUEST_TIME_FLOAT\'] is not of type float'
+            );
+        }
+
+        return $this->resourceUsage(
+            Duration::fromMicroseconds(
+                (1000000 * (microtime(true) - $_SERVER['REQUEST_TIME_FLOAT']))
+            )
+        );
+    }
+
+    private function bytesToString(int $bytes): string
+    {
+        foreach (self::SIZES as $unit => $value) {
+            if ($bytes >= $value) {
+                return sprintf('%.2f %s', $bytes >= 1024 ? $bytes / $value : $bytes, $unit);
+            }
+        }
+
+        // @codeCoverageIgnoreStart
+        return $bytes . ' byte' . ($bytes !== 1 ? 's' : '');
+        // @codeCoverageIgnoreEnd
+    }
+}
diff --git a/vendor/phpunit/php-timer/src/Timer.php b/vendor/phpunit/php-timer/src/Timer.php
new file mode 100644
index 000000000..0917109be
--- /dev/null
+++ b/vendor/phpunit/php-timer/src/Timer.php
@@ -0,0 +1,40 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-timer.
+ *
+ * (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\Timer;
+
+use function array_pop;
+use function hrtime;
+
+final class Timer
+{
+    /**
+     * @psalm-var list<float>
+     */
+    private $startTimes = [];
+
+    public function start(): void
+    {
+        $this->startTimes[] = (float) hrtime(true);
+    }
+
+    /**
+     * @throws NoActiveTimerException
+     */
+    public function stop(): Duration
+    {
+        if (empty($this->startTimes)) {
+            throw new NoActiveTimerException(
+                'Timer::start() has to be called before Timer::stop()'
+            );
+        }
+
+        return Duration::fromNanoseconds((float) hrtime(true) - array_pop($this->startTimes));
+    }
+}
diff --git a/vendor/phpunit/php-timer/src/exceptions/Exception.php b/vendor/phpunit/php-timer/src/exceptions/Exception.php
new file mode 100644
index 000000000..996da0860
--- /dev/null
+++ b/vendor/phpunit/php-timer/src/exceptions/Exception.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-timer.
+ *
+ * (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\Timer;
+
+use Throwable;
+
+interface Exception extends Throwable
+{
+}
diff --git a/vendor/phpunit/php-timer/src/exceptions/NoActiveTimerException.php b/vendor/phpunit/php-timer/src/exceptions/NoActiveTimerException.php
new file mode 100644
index 000000000..40fe45e86
--- /dev/null
+++ b/vendor/phpunit/php-timer/src/exceptions/NoActiveTimerException.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-timer.
+ *
+ * (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\Timer;
+
+use LogicException;
+
+final class NoActiveTimerException extends LogicException implements Exception
+{
+}
diff --git a/vendor/phpunit/php-timer/src/exceptions/TimeSinceStartOfRequestNotAvailableException.php b/vendor/phpunit/php-timer/src/exceptions/TimeSinceStartOfRequestNotAvailableException.php
new file mode 100644
index 000000000..a2d94ce80
--- /dev/null
+++ b/vendor/phpunit/php-timer/src/exceptions/TimeSinceStartOfRequestNotAvailableException.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-timer.
+ *
+ * (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\Timer;
+
+use RuntimeException;
+
+final class TimeSinceStartOfRequestNotAvailableException extends RuntimeException implements Exception
+{
+}