clean install

vendor/e0ipso/shaper/.gitignore

@@ -0,0 +1,4 @@
+/vendor/
+/composer.lock
+/build
+.phpunit.result.cache

vendor/e0ipso/shaper/.travis.yml

@@ -0,0 +1,15 @@
+language: php
+php:
+  - 7.4
+  - 8.0
+
+before_script:
+  - mkdir -p build/logs
+  - composer install --no-interaction
+  - echo "xdebug.mode = coverage" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
+
+script:
+  - php vendor/bin/phpunit
+
+after_success:
+  - travis_retry php vendor/bin/php-coveralls -v

vendor/e0ipso/shaper/LICENSE

@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
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+your programs, too.
+
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+
+  We protect your rights with two steps: (1) copyright the software, and
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+
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+
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+
+Activities other than copying, distribution and modification are not
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+running the Program is not restricted, and the output from the Program
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+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
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+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
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+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
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+
+  6. Each time you redistribute the Program (or any work based on the
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+
+  7. If, as a consequence of a court judgment or allegation of patent
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+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
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+
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+
+This section is intended to make thoroughly clear what is believed to
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+
+  8. If the distribution and/or use of the Program is restricted in
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+
+  9. The Free Software Foundation may publish revised and/or new versions
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+
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+
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+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+
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+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
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+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

vendor/e0ipso/shaper/README.md

@@ -0,0 +1,124 @@
+[![Coverage Status](https://coveralls.io/repos/e0ipso/shaper/badge.svg?branch=master&service=github)](https://coveralls.io/github/e0ipso/shaper?branch=master) [![Build Status](https://travis-ci.org/e0ipso/shaper.svg?branch=master)](https://travis-ci.org/e0ipso/shaper)
+
+# Shaper
+
+Shaper is a simple library that enables type safe data transformations. You can either have simple
+transformations or queued transformations.
+
+## One-way Transformations
+
+One way transformations are useful when data only flows in one direction. An example of this is a
+read-only HTTP API that based on the contents of one property in the output will make a request to
+an external service to include extra data in the original response.
+
+### Simple Transformations
+
+Performs a single operation to transform the data in a type safe manner.
+
+```php
+use JsonSchema\Validator;
+use Shaper\Transformation\TransformationBase;
+use Shaper\Util\Context;
+use Shaper\Validator\JsonSchemaValidator;
+
+
+class NumberToArray extends TransformationBase {
+  public function getInputValidator() {
+    return new JsonSchemaValidator(['type' => 'number'], new Validator());
+  }
+  public function getOutputValidator() {
+    $schema = ['type' => 'array', 'items' => ['type' => 'number']];
+    return new JsonSchemaValidator($schema, new Validator());
+  }
+  protected function doTransform($data, Context $context) {
+    return [$context['keyName'] => $data];
+  }
+}
+
+$t = new NumberToArray();
+$t->transform(42, new Context(['keyName' => 'data'])); // ['data' => 42]
+$t->transform(['foo']); // TypeError exception.
+```
+
+### Queued Transformations
+
+Performs a set of operations, one after the other in a type safe manner.
+
+```php
+use JsonSchema\Validator;
+use Shaper\Transformation\TransformationBase;
+use Shaper\Util\Context;
+use Shaper\Validator\InstanceofValidator;
+use Shaper\Validator\JsonSchemaValidator;
+use Shaper\Transformation\TransformationsQueue;
+
+class ObjectToNumber extends TransformationBase {
+  public function getInputValidator() {
+    return new InstanceofValidator(\stdClass::class);
+  }
+  public function getOutputValidator() {
+    $schema = ['type' => 'number'];
+    return new JsonSchemaValidator($schema, new Validator());
+  }
+  protected function doTransform($data, Context $context) {
+    return isset($data->value) ? $data->value : 0;
+  }
+}
+
+$t = new TransformationsQueue();
+$t->add(new ObjectToNumber());
+$t->add(new NumberToArray());
+$input = new \stdClass();
+$input->value = 42;
+$t->transform($input, new Context(['keyName' => 'data'])); // ['data' => 42]
+```
+
+## Two-way Transformations (aka Data Adaptor)
+
+Data adaptors, or reversible transformations, are useful when the data can flow in both directions.
+An example of this is an HTTP API that exposes an internal storage. However the internal storage
+format is not the format that the API wants to expose. For that data coming in needs to be
+transformed into the internal storage format, and data coming out needs to be transformed into the
+shape we want to expose to the outside world via our API.
+
+```php
+use JsonSchema\Validator;
+use Shaper\DataAdaptor\DataAdaptorBase;
+use Shaper\Util\Context;
+use Shaper\Validator\InstanceofValidator;
+use Shaper\Validator\JsonSchemaValidator;
+
+class MyDataAdaptor extends DataAdaptorBase {
+  protected function doTransform($data, Context $context) {
+    return $data->{$context['keyName']};
+  }
+  protected function doUndoTransform($data, Context $context) {
+    return (object) [$context['keyName'] => $data, 'bar' => 'default'];
+  }
+  public function getInputValidator() {
+    // In a real world scenario we would describe this as a JSON Schema.
+    return new InstanceofValidator(\stdClass::class);
+  }
+  public function getInternalValidator() {
+    // In a real world this would be your internal data object. Something like cheking that this is
+    // an object of class FieldItemInstance.
+    return new JsonSchemaValidator(['type' => 'string'], new Validator());
+  }
+  public function getOutputValidator() {
+    // In a real world scenario we would describe this as a JSON Schema. In most cases the output
+    // validator is the same as the input validator, so you can return the input validator here.
+    return new InstanceofValidator(\stdClass::class);
+  }
+}
+
+$da = new MyDataAdaptor();
+$data = new \stdClass();
+$data->lorem = 'caramba!';
+$da->transform($data, new Context(['keyName' => 'lorem'])); // 'caramba!'
+$da->transform(new NodeObject()); // TypeError exception.
+$da->undoTransform('caramba!', new Context(['keyName' => 'lorem'])); // (object) ['lorem' => 'caramba!', 'bar' => 'default']
+$da->undoTransform([]); // TypeError exception.
+```
+ 
+## Class Diagram
+![Class Diagram](./shaper.png)

vendor/e0ipso/shaper/composer.json

@@ -0,0 +1,27 @@
+{
+  "name": "e0ipso/shaper",
+  "description": "Lightweight library to handle in and out transformations in PHP.",
+  "type": "library",
+  "license": "GPL-2.0",
+  "authors": [
+    {
+      "name": "Mateu Aguiló Bosch",
+      "email": "mateu.aguilo.bosch@gmail.com"
+    }
+  ],
+  "minimum-stability": "dev",
+  "autoload": {
+    "psr-4": {
+      "Shaper\\": "src",
+      "Shaper\\Tests\\": "tests/src"
+    }
+  },
+  "require": {
+    "justinrainbow/json-schema": "^5.2"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^9.5",
+    "phpunit/phpcov": "^8.2",
+    "php-coveralls/php-coveralls": "^2.4"
+  }
+}

vendor/e0ipso/shaper/phpunit.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.2/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         backupGlobals="false"
+         verbose="true">
+    <testsuite name="Shaper">
+        <directory suffix="Test.php">tests</directory>
+    </testsuite>
+
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src</directory>
+        </whitelist>
+    </filter>
+
+    <logging>
+        <log type="coverage-clover" target="build/logs/clover.xml"/>
+    </logging>
+</phpunit>

vendor/e0ipso/shaper/src/DataAdaptor/DataAdaptorBase.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Shaper\DataAdaptor;
+
+use Shaper\Transformation\TransformationInterface;
+
+/**
+ * Transformation pair that can act as an adaptor between systems.
+ *
+ * Makes sure that data leaving A transforms into format B, and data arriving
+ * from B complies with the format requirements of A.
+ *
+ * @package Shaper
+ */
+abstract class DataAdaptorBase implements TransformationInterface, ReversibleTransformationInterface, ReversibleTransformationValidationInterface {
+
+  use DataAdaptorValidatorTrait;
+  use DataAdaptorTransformerTrait;
+
+}

vendor/e0ipso/shaper/src/DataAdaptor/DataAdaptorTransformerTrait.php

@@ -0,0 +1,107 @@
+<?php
+
+namespace Shaper\DataAdaptor;
+
+use Shaper\Util\Context;
+
+trait DataAdaptorTransformerTrait {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function transform($data, ?Context $context = NULL) {
+    if (!isset($context)) {
+      $context = new Context();
+    }
+    if (!$this->conformsToExpectedInputShape($data, $context)) {
+      /** @var \Shaper\Validator\ValidateableInterface $validator */
+      $validator = $this->getInputValidator();
+      $message = sprintf(
+        'Adaptor %s received invalid input data: %s',
+        __CLASS__,
+        json_encode($validator->getErrors(), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT)
+      );
+      throw new \TypeError($message);
+    }
+    $output = $this->doTransform($data, $context);
+    if (!$this->conformsToInternalShape($output, $context)) {
+      /** @var \Shaper\Validator\ValidateableInterface $validator */
+      $validator = $this->getInternalValidator();
+      $message = sprintf(
+        'Adaptor %s returned invalid output data: %s',
+        __CLASS__,
+        json_encode($validator->getErrors(), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT)
+      );
+      throw new \TypeError($message);
+    }
+    return $output;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function undoTransform($data, ?Context $context = NULL) {
+    if (!isset($context)) {
+      $context = new Context();
+    }
+    if (!$this->conformsToInternalShape($data, $context)) {
+      /** @var \Shaper\Validator\ValidateableInterface $validator */
+      $validator = $this->getInternalValidator();
+      $message = sprintf(
+        'Adaptor %s received invalid input data: %s',
+        __CLASS__,
+        json_encode($validator->getErrors(), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT)
+      );
+      throw new \TypeError($message);
+    }
+    $output = $this->doUndoTransform($data, $context);
+    if (!$this->conformsToOutputShape($output, $context)) {
+      /** @var \Shaper\Validator\ValidateableInterface $validator */
+      $validator = $this->getOutputValidator();
+      $message = sprintf(
+        'Adaptor %s returned invalid output data: %s',
+        __CLASS__,
+        json_encode($validator->getErrors(), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT)
+      );
+      throw new \TypeError($message);
+    }
+    return $output;
+  }
+
+  /**
+   * Transforms incoming data into another shape.
+   *
+   * This method will validate data coming in and going out using validators.
+   *
+   * @param mixed $data
+   *   The data to transform.
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect how the data is transformed.
+   *
+   * @return mixed
+   *   The data in the new shape.
+   *
+   * @throws \TypeError
+   *   When the transformation cannot be applied.
+   */
+  abstract protected function doTransform($data, Context $context);
+
+  /**
+   * Transforms outgoing data into another shape.
+   *
+   * This method will validate data coming in and going out using validators.
+   *
+   * @param mixed $data
+   *   The data to transform.
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect how the data is transformed.
+   *
+   * @return mixed
+   *   The data in the new shape.
+   *
+   * @throws \TypeError
+   *   When the transformation cannot be applied.
+   */
+  abstract protected function doUndoTransform($data, Context $context);
+
+}

vendor/e0ipso/shaper/src/DataAdaptor/DataAdaptorValidatorTrait.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Shaper\DataAdaptor;
+
+use Shaper\Transformation\TransformationValidationTrait;
+use Shaper\Util\Context;
+
+trait DataAdaptorValidatorTrait {
+
+  use TransformationValidationTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function conformsToInternalShape($data, ?Context $context = NULL) {
+    return $this->getInternalValidator()->isValid($data);
+  }
+
+}

vendor/e0ipso/shaper/src/DataAdaptor/ReversibleTransformationInterface.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Shaper\DataAdaptor;
+
+use Shaper\Util\Context;
+
+interface ReversibleTransformationInterface {
+
+  /**
+   * Basic transformation revert from a shape into another shape.
+   *
+   * This method will validate data coming in and going out using validators.
+   *
+   * @param mixed $data
+   *   The data to transform.
+   *
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect how the data is transformed.
+   *
+   * @return mixed
+   *   The data in the new shape.
+   *
+   * @throws \TypeError
+   *   When the transformation cannot be applied.
+   */
+  public function undoTransform($data, ?Context $context = NULL);
+
+}

vendor/e0ipso/shaper/src/DataAdaptor/ReversibleTransformationValidationInterface.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Shaper\DataAdaptor;
+
+use Shaper\Transformation\TransformationValidationInterface;
+use Shaper\Util\Context;
+
+interface ReversibleTransformationValidationInterface extends TransformationValidationInterface {
+
+  /**
+   * Checks if the shape of the transformed data is valid for internal use.
+   *
+   * @param mixed $data
+   *   The data in the internal format.
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect how the data is transformed.
+   *
+   * @return bool
+   *   TRUE if the format is valid.
+   */
+  public function conformsToInternalShape($data, ?Context $context = NULL);
+
+  /**
+   * The validator for the internal data.
+   *
+   * @return \Shaper\Validator\ValidateableInterface
+   */
+  public function getInternalValidator();
+
+}

vendor/e0ipso/shaper/src/Transformation/TransformationBase.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Shaper\Transformation;
+
+/**
+ * Base implementation for transformation classes.
+ *
+ * @package Shaper
+ */
+abstract class TransformationBase implements TransformationInterface, TransformationValidationInterface {
+
+  use TransformationValidationTrait;
+  use TransformationTransformerTrait;
+
+}

vendor/e0ipso/shaper/src/Transformation/TransformationInterface.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Shaper\Transformation;
+
+use Shaper\Util\Context;
+
+/**
+ * Interface for transformation classes.
+ *
+ * @package Shaper
+ */
+interface TransformationInterface {
+
+  /**
+   * Basic transformation from a shape into another shape.
+   *
+   * This method will validate data coming in and going out using validators.
+   *
+   * @param mixed $data
+   *   The data to transform.
+   *
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect how the data is transformed.
+   *
+   * @return mixed
+   *   The data in the new shape.
+   *
+   * @throws \TypeError
+   *   When the transformation cannot be applied.
+   */
+  public function transform($data, ?Context $context = NULL);
+
+}

vendor/e0ipso/shaper/src/Transformation/TransformationTransformerTrait.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace Shaper\Transformation;
+
+use Shaper\Util\Context;
+
+trait TransformationTransformerTrait {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function transform($data, ?Context $context = NULL) {
+    if (!isset($context)) {
+      $context = new Context();
+    }
+
+    // Error utility.
+    $throw = function($message, $arguments = []) {
+      /** @var \Shaper\Validator\ValidateableInterface $validator */
+      $validator = $this->getInputValidator();
+      $options = JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT;
+
+      throw new \TypeError(strtr($message, $arguments + [
+        '{class}' => static::class,
+        '{data}' => json_encode($validator->getErrors(), $options)
+      ]));
+    };
+
+    if (!$this->conformsToExpectedInputShape($data, $context)) {
+      $throw('Adaptor {class} received invalid input data: {data}.');
+    }
+
+    $output = $this->doTransform($data, $context);
+    if (!$this->conformsToOutputShape($output, $context)) {
+      $throw('Adaptor {class} returned invalid output data: {data}');
+    }
+
+    return $output;
+  }
+
+  /**
+   * Basic transformation from a shape into another shape.
+   *
+   * This method does not include validations since they are handled in the
+   * calling method.
+   *
+   * @param mixed $data
+   *   The data to transform.
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect how the data is transformed.
+   *
+   * @return mixed
+   *   The data in the new shape.
+   *
+   * @throws \TypeError
+   *   When the transformation cannot be applied.
+   */
+  abstract protected function doTransform($data, Context $context);
+
+}

vendor/e0ipso/shaper/src/Transformation/TransformationValidationInterface.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace Shaper\Transformation;
+
+use Shaper\Util\Context;
+
+interface TransformationValidationInterface {
+
+  /**
+   * Checks if the data provided can be transformed by the validator.
+   *
+   * @param mixed $data
+   *   The data to check.
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect applicability.
+   *
+   * @return bool
+   *   TRUE if the transformation can be used with the supplied data.
+   */
+  public function conformsToExpectedInputShape($data, ?Context $context = NULL);
+
+  /**
+   * Checks if the transformed data conforms to the expected shape.
+   *
+   * @param mixed $data
+   *   The data to check.
+   * @param \Shaper\Util\Context $context
+   *   Additional information that will affect applicability.
+   *
+   * @return bool
+   *   TRUE if the transformed data conforms to the expected shape.
+   */
+  public function conformsToOutputShape($data, ?Context $context = NULL);
+
+  /**
+   * The validator for the input data.
+   *
+   * @return \Shaper\Validator\ValidateableInterface
+   */
+  public function getInputValidator();
+
+  /**
+   * The validator for the output data.
+   *
+   * @return \Shaper\Validator\ValidateableInterface
+   */
+  public function getOutputValidator();
+
+}

vendor/e0ipso/shaper/src/Transformation/TransformationValidationTrait.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Shaper\Transformation;
+
+use Shaper\Util\Context;
+
+trait TransformationValidationTrait {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function conformsToExpectedInputShape($data, ?Context $context = NULL) {
+    return $this->getInputValidator()->isValid($data);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function conformsToOutputShape($data, ?Context $context = NULL) {
+    return $this->getOutputValidator()->isValid($data);
+  }
+
+}

vendor/e0ipso/shaper/src/Transformation/TransformationsQueue.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Shaper\Transformation;
+
+use Shaper\Util\Context;
+
+class TransformationsQueue extends \SplQueue implements TransformationInterface, TransformationValidationInterface {
+
+  use TransformationValidationTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function transform($data, ?Context $context = NULL) {
+    if (!isset($context)) {
+      $context = new Context();
+    }
+    $output = $data;
+    foreach ($this as $transformation) {
+      $output = $transformation->transform($output, $context);
+    }
+    return $output;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getInputValidator() {
+    /** @var \Shaper\Transformation\TransformationValidationInterface $first_transformation */
+    $first_transformation = $this->bottom();
+    return $first_transformation->getInputValidator();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getOutputValidator() {
+    /** @var \Shaper\Transformation\TransformationValidationInterface $last_transformation */
+    $last_transformation = $this->top();
+    return $last_transformation->getOutputValidator();
+  }
+
+}

vendor/e0ipso/shaper/src/Util/Context.php

@@ -0,0 +1,5 @@
+<?php
+
+namespace Shaper\Util;
+
+class Context extends \ArrayObject {}

vendor/e0ipso/shaper/src/Validator/AcceptValidator.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: e0ipso
+ * Date: 27/02/2018
+ * Time: 13:37
+ */
+
+namespace Shaper\Validator;
+
+/**
+ * Validator that accepts everything.
+ *
+ * @package Shaper
+ */
+class AcceptValidator extends ValidateableBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isValid($data) {
+    return TRUE;
+  }
+
+}

vendor/e0ipso/shaper/src/Validator/CollectionOfValidators.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Shaper\Validator;
+
+class CollectionOfValidators extends ValidateableBase {
+
+  /**
+   * The name of the class or interface the data must comply.
+   *
+   * @var string
+   */
+  protected $itemValidator;
+
+  /**
+   * InstanceofValidator constructor.
+   *
+   * @param ValidateableInterface $item_validator
+   *   The validator to apply to each item.
+   *
+   * @throws \TypeError
+   *   If the class or interface does not exist.
+   */
+  public function __construct(ValidateableInterface $item_validator) {
+    $this->itemValidator = $item_validator;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isValid($data) {
+    $this->resetErrors();
+    if (!is_array($data)) {
+      array_push($this->errors, 'Collection of validators only applies on data arrays.');
+      return FALSE;
+    }
+    // The collection is valid if all the items are valid.
+    return array_reduce($data, function ($is_valid, $item) {
+      $valid_item = TRUE;
+      $is_valid = $is_valid && ($valid_item = $this->itemValidator->isValid($item));
+      if (!$valid_item) {
+        $this->errors = array_merge($this->errors, $this->itemValidator->getErrors());
+      }
+      return $is_valid;
+    }, TRUE);
+  }
+
+}

vendor/e0ipso/shaper/src/Validator/InstanceofValidator.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Shaper\Validator;
+
+class InstanceofValidator extends ValidateableBase {
+
+  /**
+   * The name of the class or interface the data must comply.
+   *
+   * @var string
+   */
+  protected $supportedClassOrInterface;
+
+  /**
+   * InstanceofValidator constructor.
+   *
+   * @param string $supported_class_or_interface
+   *   The class or interface. It must exist.
+   *
+   * @throws \TypeError
+   *   If the class or interface does not exist.
+   */
+  public function __construct($supported_class_or_interface) {
+    if (
+      !class_exists($supported_class_or_interface) &&
+      !interface_exists($supported_class_or_interface)
+    ) {
+      $message = sprintf('Class or interface %s does not exist.', $supported_class_or_interface);
+      throw new \TypeError($message);
+    }
+    $this->supportedClassOrInterface = $supported_class_or_interface;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isValid($data) {
+    $this->resetErrors();
+    $is_valid = is_a($data, $this->supportedClassOrInterface);
+    if (!$is_valid) {
+      $message = sprintf(
+        '"%s" does not extend or implement "%s".',
+        is_object($data) ? get_class($data) : $data,
+        $this->supportedClassOrInterface
+      );
+      array_push($this->errors, $message);
+    }
+    return $is_valid;
+  }
+
+}

vendor/e0ipso/shaper/src/Validator/JsonSchemaValidator.php

@@ -0,0 +1,113 @@
+<?php
+
+namespace Shaper\Validator;
+
+use JsonSchema\Validator;
+
+class JsonSchemaValidator extends ValidateableBase {
+
+  /**
+   * The JSON object with the schema.
+   *
+   * @var array
+   */
+  protected $schema;
+
+  /**
+   * The schema validator.
+   *
+   * @var \JsonSchema\Validator
+   */
+  protected $validator;
+
+  /**
+   * The check mode flag for the JSON Schema validator.
+   *
+   * @var int
+   */
+  protected $checkMode;
+
+  /**
+   * JsonSchema constructor.
+   *
+   * @param array $schema
+   *   The schema.
+   * @param \JsonSchema\Validator $validator
+   *   The validator.
+   */
+  public function __construct(?array $schema = NULL, ?Validator $validator = NULL, $mode = NULL) {
+    $this->schema = $schema;
+    $this->validator = $validator;
+    $this->checkMode = $mode;
+  }
+
+  /**
+   * Sets the validator.
+   *
+   * @param \JsonSchema\Validator $validator
+   *   The object that checks the JSON Schema.
+   */
+  public function setValidator(Validator $validator) {
+    $this->validator = $validator;
+  }
+
+  /**
+   * Transforms the schema into a JSON object.
+   *
+   * @return string
+   *   The JSON object representation.
+   */
+  public function toJSON() {
+    return json_encode($this->schema);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isValid($data) {
+    $this->resetErrors();
+    if (!$this->validator) {
+      throw new \InvalidArgumentException('JSON Schema validator needs to be set using setValidator().');
+    }
+    $num_errors = $this->validator->validate($data, $this->schema, $this->checkMode);
+    if ($num_errors) {
+      $this->errors = array_merge($this->errors, $this->validator->getErrors());
+    }
+    return !$num_errors;
+  }
+
+  /**
+   * Avoid serializing the validator.
+   *
+   * @return array
+   *   The names of the properties to serialize.
+   */
+  public function __sleep() {
+    return ['schema', 'errors'];
+  }
+
+  /**
+   * Re-attach a validator on de-serialization.
+   */
+  public function __wakeup() {
+    $this->setValidator(new Validator());
+  }
+
+  public function getErrors() {
+    if ($this->validator) {
+      return $this->validator->getErrors();
+    }
+    return parent::getErrors();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function resetErrors() {
+    if ($this->validator) {
+      $this->validator->reset();
+    }
+    $this->errors = [];
+  }
+
+}

vendor/e0ipso/shaper/src/Validator/RegexpValidator.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Shaper\Validator;
+
+use JsonSchema\Validator;
+
+class RegexpValidator extends ValidateableBase {
+
+  /**
+   * The name of the class or interface the data must comply.
+   *
+   * @var \Shaper\Validator\JsonSchemaValidator
+   */
+  protected $stringValidator;
+
+  /**
+   * The regular expression.
+   *
+   * @var string
+   */
+  protected $regexp;
+
+  /**
+   * InstanceofValidator constructor.
+   *
+   * @param string $regexp
+   *   The regular expression (without delimiters) to check.
+   */
+  public function __construct($regexp) {
+    $this->regexp = $regexp;
+    $this->stringValidator = new JsonSchemaValidator(['type' => 'string'], new Validator());
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isValid($data) {
+    $this->resetErrors();
+    $matches_regexp = $this->stringValidator->isValid($data) &&
+      preg_match('@' . $this->regexp . '@', $data);
+    if (!$matches_regexp) {
+      $message = sprintf(
+        'String "%s" does not match regular expression /%s/ as expected.',
+        $data,
+        $this->regexp
+      );
+      array_push($this->errors, $message);
+    }
+    return $matches_regexp;
+  }
+
+}

vendor/e0ipso/shaper/src/Validator/ValidateableBase.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Shaper\Validator;
+
+abstract class ValidateableBase implements ValidateableInterface {
+
+  protected $errors = [];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getErrors() {
+    return $this->errors;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function resetErrors() {
+    $this->errors = [];
+  }
+
+}

vendor/e0ipso/shaper/src/Validator/ValidateableInterface.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Shaper\Validator;
+
+interface ValidateableInterface {
+
+  /**
+   * Checks that the provided data is valid.
+   *
+   * @param mixed $data
+   *   The data to validate.
+   *
+   * @return bool
+   *   TRUE if the data is valid. FALSE otherwise.
+   */
+  public function isValid($data);
+
+  /**
+   * Get the eventual errors in case validation failed.
+   *
+   * @return array
+   *   The list of errors that happened.
+   */
+  public function getErrors();
+
+  /**
+   * Clears any reported errors.
+   *
+   * Should be used between validation checks.
+   */
+  public function resetErrors();
+
+}

vendor/e0ipso/shaper/tests/src/DataAdaptor/DataAdaptorBaseTest.php

@@ -0,0 +1,99 @@
+<?php
+
+namespace Shaper\Tests\DataAdaptor;
+
+use PHPUnit\Framework\TestCase;
+use Shaper\Util\Context;
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\DataAdaptor\DataAdaptorBase
+ */
+class DataAdaptorBaseTest extends TestCase {
+
+  /**
+   * @var \Shaper\Util\Context
+   */
+  protected $context;
+
+  protected function setUp(): void {
+    parent::setUp();
+    $this->context = new Context();
+    $this->context['key'] = 'lorem';
+  }
+
+  /**
+   * @covers ::transform
+   * @covers ::conformsToExpectedInputShape
+   * @covers ::conformsToInternalShape
+   */
+  public function testtransform() {
+    $sut = new DataAdaptorFake();
+    $data = new \stdClass();
+    $data->lorem = 'caramba!';
+    $actual = $sut->transform($data, $this->context);
+    $this->assertSame('caramba!', $actual);
+  }
+
+  /**
+   * @covers ::transform
+   */
+  public function testtransformErrorInput() {
+    $sut = new DataAdaptorFake2();
+    $data = new \stdClass();
+    $data->lorem = 'caramba!';
+    $this->expectException(\TypeError::class);
+    $sut->transform($data, $this->context);
+  }
+
+  /**
+   * @covers ::transform
+   */
+  public function testtransformErrorOutput() {
+    $sut = new DataAdaptorFake3();
+    $data = new \stdClass();
+    $data->lorem = 'caramba!';
+    $this->expectException(\TypeError::class);
+    $sut->transform($data);
+  }
+
+  /**
+   * @covers ::undoTransform
+   * @covers ::conformsToInternalShape
+   * @covers ::conformsToOutputShape
+   */
+  public function testundoTransform() {
+    $sut = new DataAdaptorFake();
+    $actual = $sut->undoTransform('caramba!', $this->context);
+    $expected = new \stdClass();
+    $expected->lorem = 'caramba!';
+    $expected->bar = 'default';
+    $this->assertEquals($expected, $actual);
+  }
+
+  /**
+   * @covers ::undoTransform
+   */
+  public function testundoTransformErrorInput() {
+    $sut = new DataAdaptorFake3();
+    $expected = new \stdClass();
+    $expected->lorem = 'caramba!';
+    $expected->bar = 'default';
+    $this->expectException(\TypeError::class);
+    $sut->undoTransform('caramba!', $this->context);
+  }
+
+  /**
+   * @covers ::undoTransform
+   */
+  public function testundoTransformErrorOutput() {
+    $sut = new DataAdaptorFake4();
+    $expected = new \stdClass();
+    $expected->lorem = 'caramba!';
+    $expected->bar = 'default';
+    $this->expectException(\TypeError::class);
+    $sut->undoTransform('caramba!');
+  }
+
+}

vendor/e0ipso/shaper/tests/src/DataAdaptor/DataAdaptorFake.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Shaper\Tests\DataAdaptor;
+
+use Shaper\DataAdaptor\DataAdaptorBase;
+use Shaper\Util\Context;
+use Shaper\Validator\AcceptValidator;
+
+class DataAdaptorFake extends DataAdaptorBase {
+  protected function doTransform($data, Context $context) {
+    $key = $context->offsetExists('key') ? $context['key'] : 'lorem';
+    return $data->{$key};
+  }
+  protected function doUndoTransform($data, Context $context) {
+    $key = $context->offsetExists('key') ? $context['key'] : 'lorem';
+    return (object) [$key => $data, 'bar' => 'default'];
+  }
+  public function getInputValidator() {
+    return new AcceptValidator();
+  }
+
+  public function getInternalValidator() {
+    return new AcceptValidator();
+  }
+
+  public function getOutputValidator() {
+    return new AcceptValidator();
+  }
+}

vendor/e0ipso/shaper/tests/src/DataAdaptor/DataAdaptorFake2.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Shaper\Tests\DataAdaptor;
+
+use Shaper\DataAdaptor\DataAdaptorBase;
+use Shaper\Util\Context;
+use Shaper\Validator\AcceptValidator;
+
+class DataAdaptorFake2 extends DataAdaptorFake {
+  public function conformsToExpectedInputShape($data, ?Context $context = NULL) {
+    return FALSE;
+  }
+}

vendor/e0ipso/shaper/tests/src/DataAdaptor/DataAdaptorFake3.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Shaper\Tests\DataAdaptor;
+
+use Shaper\DataAdaptor\DataAdaptorBase;
+use Shaper\Util\Context;
+use Shaper\Validator\AcceptValidator;
+
+class DataAdaptorFake3 extends DataAdaptorFake {
+  public function conformsToInternalShape($data, ?Context $context = NULL) {
+    return FALSE;
+  }
+}

vendor/e0ipso/shaper/tests/src/DataAdaptor/DataAdaptorFake4.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Shaper\Tests\DataAdaptor;
+
+use Shaper\DataAdaptor\DataAdaptorBase;
+use Shaper\Util\Context;
+use Shaper\Validator\AcceptValidator;
+
+class DataAdaptorFake4 extends DataAdaptorFake {
+  public function conformsToOutputShape($data, ?Context $context = NULL) {
+    return FALSE;
+  }
+}

vendor/e0ipso/shaper/tests/src/Transformation/TransformationBaseTest.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Shaper\Tests\Transformation;
+
+use JsonSchema\Validator;
+use PHPUnit\Framework\TestCase;
+use Shaper\Transformation\TransformationBase;
+use Shaper\Util\Context;
+use Shaper\Validator\AcceptValidator;
+use Shaper\Validator\JsonSchemaValidator;
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Transformation\TransformationBase
+ */
+class TransformationBaseTest extends TestCase {
+
+  /**
+   * @covers ::transform
+   * @covers ::getInputValidator
+   * @covers ::getOutputValidator
+   * @covers ::conformsToExpectedInputShape
+   * @covers ::conformsToOutputShape
+   */
+  public function testTransform() {
+    $sut = new TransformationFake();
+    $actual = $sut->transform('foo');
+    $this->assertSame(42, $actual);
+    $this->expectException(\TypeError::class);
+    $sut->transform([], new Context());
+  }
+
+  /**
+   * @covers ::transform
+   */
+  public function testTransformBeforeError() {
+    $sut = new TransformationFake();
+    $this->expectException(\TypeError::class);
+    $sut->transform([], new Context());
+  }
+
+  /**
+   * @covers ::transform
+   */
+  public function testTransformAfterError() {
+    $sut = new TransformationFail();
+    $this->expectException(\TypeError::class);
+    $sut->transform('foo', new Context());
+  }
+
+}

vendor/e0ipso/shaper/tests/src/Transformation/TransformationFail.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Shaper\Tests\Transformation;
+
+use Shaper\Util\Context;
+
+class TransformationFail extends TransformationFake {
+  protected function doTransform($data, Context $context) {
+    return 'bar';
+  }
+}

vendor/e0ipso/shaper/tests/src/Transformation/TransformationFake.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Shaper\Tests\Transformation;
+
+use JsonSchema\Validator;
+use Shaper\Transformation\TransformationBase;
+use Shaper\Util\Context;
+use Shaper\Validator\JsonSchemaValidator;
+
+class TransformationFake extends TransformationBase {
+  public function getInputValidator() {
+    return new JsonSchemaValidator(['type' => 'string'], new Validator());
+  }
+  public function getOutputValidator() {
+    return new JsonSchemaValidator(['type' => 'number'], new Validator());
+  }
+  protected function doTransform($data, Context $context) {
+    return 42;
+  }
+
+}

vendor/e0ipso/shaper/tests/src/Transformation/TransformationsQueueTest.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Shaper\Tests\Transformation;
+
+use JsonSchema\Validator;
+use PHPUnit\Framework\TestCase;
+use Shaper\Transformation\TransformationBase;
+use Shaper\Transformation\TransformationsQueue;
+use Shaper\Util\Context;
+use Shaper\Validator\AcceptValidator;
+use Shaper\Validator\JsonSchemaValidator;
+
+class TransformationFake2 extends TransformationBase {
+  public function getInputValidator() {
+    return new JsonSchemaValidator(['type' => 'number'], new Validator());
+  }
+  public function getOutputValidator() {
+    $schema = ['type' => 'array', 'items' => ['type' => 'number']];
+    return new JsonSchemaValidator($schema, new Validator());
+  }
+  protected function doTransform($data, Context $context) {
+    return [$data];
+  }
+}
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Transformation\TransformationsQueue
+ */
+class TransformationsQueueTest extends TestCase {
+
+  /**
+   * @var \Shaper\Transformation\TransformationsQueue
+   */
+  protected $sut;
+
+  /**
+   * @var \Shaper\Util\Context
+   */
+  protected $context;
+
+  protected function setUp(): void {
+    parent::setUp();
+    $this->sut = new TransformationsQueue();
+    $this->sut->push(new TransformationFake());
+    $this->sut->push(new TransformationFake2());
+    $this->context = new Context();
+  }
+
+
+  /**
+   * @covers ::transform
+   */
+  public function testTransform() {
+    $actual = $this->sut->transform('foo', $this->context);
+    $this->assertEquals([42], $actual);
+    $actual = $this->sut->transform('foo');
+    $this->assertEquals([42], $actual);
+  }
+
+  /**
+   * @covers ::getInputValidator
+   */
+  public function testGetInputValidator() {
+    $this->assertFalse($this->sut->conformsToExpectedInputShape([], $this->context));
+  }
+
+  /**
+   * @covers ::getOutputValidator
+   */
+  public function testGetOutputValidator() {
+    $this->assertFalse($this->sut->conformsToOutputShape(new \stdClass(), $this->context));
+  }
+
+}

vendor/e0ipso/shaper/tests/src/Validator/AcceptValidatorTest.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Shaper\Tests\Validator;
+
+use Shaper\Validator\AcceptValidator;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Validator\AcceptValidator
+ */
+class AcceptValidatorTest extends TestCase {
+
+  /**
+   * @covers ::isValid
+   */
+  public function testIsValid() {
+    $sut = new AcceptValidator();
+    $this->assertTrue($sut->isValid(NULL));
+    $this->assertTrue($sut->isValid(TRUE));
+    $this->assertTrue($sut->isValid(42));
+  }
+}

vendor/e0ipso/shaper/tests/src/Validator/CollectionOfValidatorsTest.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace Shaper\Tests\Validator;
+
+use PHPUnit\Framework\TestCase;
+use Shaper\Validator\CollectionOfValidators;
+use Shaper\Validator\InstanceofValidator;
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Validator\CollectionOfValidators
+ */
+class CollectionOfValidatorsTest extends TestCase {
+
+  /**
+   * @covers ::__construct
+   */
+  public function test__construct() {
+    $sut = new CollectionOfValidators(new InstanceofValidator(TestCase::class));
+    $this->assertInstanceOf(CollectionOfValidators::class, $sut);
+  }
+
+  /**
+   * @covers ::__construct
+   */
+  public function test__constructError() {
+    $this->expectException(\TypeError::class);
+    new CollectionOfValidators('IAmAFail');
+  }
+
+  /**
+   * @covers ::isValid
+   */
+  public function testIsValid() {
+    $sut = new CollectionOfValidators(new InstanceofValidator(\stdClass::class));
+    $this->assertTrue($sut->isValid([new \stdClass(), new \stdClass()]));
+    $this->assertFalse($sut->isValid([new \stdClass(), 'fail']));
+    $this->assertSame('"fail" does not extend or implement "stdClass".', $sut->getErrors()[0]);
+    $this->assertFalse($sut->isValid(new \stdClass()));
+    $this->assertSame('Collection of validators only applies on data arrays.', $sut->getErrors()[0]);
+  }
+
+}

vendor/e0ipso/shaper/tests/src/Validator/InstanceofValidatorTest.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Shaper\Tests\Validator;
+
+use PHPUnit\Framework\TestCase;
+use Shaper\Validator\InstanceofValidator;
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Validator\InstanceofValidator
+ */
+class InstanceofValidatorTest extends TestCase {
+
+  /**
+   * @covers ::__construct
+   */
+  public function test__construct() {
+    $sut = new InstanceofValidator(TestCase::class);
+    $this->assertInstanceOf(InstanceofValidator::class, $sut);
+  }
+
+  /**
+   * @covers ::__construct
+   */
+  public function test__constructError() {
+    $this->expectException(\TypeError::class);
+    new InstanceofValidator('IAmAFail');
+  }
+
+  /**
+   * @covers ::isValid
+   */
+  public function testIsValid() {
+    $sut = new InstanceofValidator(\stdClass::class);
+    $this->assertTrue($sut->isValid(new \stdClass()));
+    $this->assertFalse($sut->isValid(new \Exception()));
+    $this->assertSame('"Exception" does not extend or implement "stdClass".', $sut->getErrors()[0]);
+    $this->assertFalse($sut->isValid('42'));
+    $this->assertSame('"42" does not extend or implement "stdClass".', $sut->getErrors()[0]);
+  }
+
+}

vendor/e0ipso/shaper/tests/src/Validator/JsonSchemaValidatorTest.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace Shaper\Tests\Validator;
+
+use JsonSchema\Validator;
+use PHPUnit\Framework\TestCase;
+use Shaper\Validator\JsonSchemaValidator;
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Validator\JsonSchemaValidator
+ */
+class JsonSchemaValidatorTest extends TestCase {
+
+  /**
+   * @covers ::__construct
+   * @covers ::setValidator
+   */
+  public function test__construct() {
+    $sut = new JsonSchemaValidator(NULL, new Validator());
+    $this->assertInstanceOf(JsonSchemaValidator::class, $sut);
+  }
+
+  /**
+   * @covers ::toJSON
+   */
+  public function testToJSON() {
+    $sut = new JsonSchemaValidator(['type' => 'string'], new Validator());
+    $this->assertEquals('{"type":"string"}', $sut->toJSON());
+  }
+
+  /**
+   * @covers ::isValid
+   * @covers ::setValidator
+   */
+  public function testIsValid() {
+    $sut = new JsonSchemaValidator(['type' => 'number']);
+    $sut->setValidator(new Validator());
+    $this->assertTrue($sut->isValid(42));
+    $this->assertFalse($sut->isValid('not true'));
+    $this->assertSame('String value found, but a number is required', $sut->getErrors()[0]['message']);
+  }
+
+  /**
+   * @covers ::isValid
+   */
+  public function testIsValidError() {
+    $sut = new JsonSchemaValidator(['type' => 'number']);
+    $this->expectException(\InvalidArgumentException::class);
+    $this->assertTrue($sut->isValid(NULL));
+  }
+
+  /**
+   * @covers ::__sleep
+   * @covers ::__wakeup
+   */
+  public function testSerialize() {
+    $sut = new JsonSchemaValidator(['type' => 'number'], new Validator());
+    $serialized = serialize($sut);
+    $sut = unserialize($serialized);
+    $this->assertInstanceOf(JsonSchemaValidator::class, $sut);
+  }
+
+  /**
+   * @covers ::getErrors
+   */
+  public function testGetErrors() {
+    $sut = new JsonSchemaValidator(['type' => 'number']);
+    $sut->setValidator(new Validator());
+    $sut->isValid(NULL);
+    $this->assertEquals([[
+     'property' => '',
+     'pointer' => '',
+     'message' => 'NULL value found, but a number is required',
+     'constraint' => 'type',
+     'context' => 1,
+    ]], $sut->getErrors());
+    $sut = new JsonSchemaValidator(['type' => 'number']);
+    $this->assertEquals([], $sut->getErrors());
+  }
+
+  /**
+   * @covers ::resetErrors
+   */
+  public function testResetErrors() {
+    $sut = new JsonSchemaValidator(['type' => 'number']);
+    $sut->setValidator(new Validator());
+    $sut->isValid(NULL);
+    $this->assertNotEmpty($sut->getErrors()[0]);
+    $sut->resetErrors();
+    $this->assertEmpty($sut->getErrors());
+  }
+
+}

vendor/e0ipso/shaper/tests/src/Validator/RegexpValidatorTest.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Shaper\Tests\Validator;
+
+use Shaper\Validator\RegexpValidator;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Validator\RegexpValidator
+ */
+class RegexpValidatorTest extends TestCase {
+
+  /**
+   * @covers ::isValid
+   * @covers ::__construct
+   * @dataProvider providerIdValid
+   */
+  public function testIsValid($data, $expected) {
+    $sut = new RegexpValidator('^d.*e$');
+    $this->assertSame($expected, $sut->isValid($data));
+    if (!$expected) {
+      $message = sprintf(
+        'String "%s" does not match regular expression /^d.*e$/ as expected.',
+        $data
+      );
+      $this->assertSame($message, $sut->getErrors()[0]);
+    }
+  }
+
+  /**
+   * Data provider for testIsValid.
+   *
+   * @return array
+   */
+  public function providerIdValid() {
+    return [
+      ['de', TRUE],
+      ['d123/\/@e', TRUE],
+      ['42', FALSE],
+      ['d123@', FALSE],
+    ];
+  }
+}

vendor/e0ipso/shaper/tests/src/Validator/ValidateableBaseTest.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace Shaper\Tests\Validator;
+
+use PHPUnit\Framework\TestCase;
+use Shaper\Validator\ValidateableBase;
+
+class FakeValidateable extends ValidateableBase {
+
+  public function isValid($data) {
+    return FALSE;
+  }
+
+  public function setErrors($value) {
+    $this->errors = $value;
+  }
+
+}
+
+/**
+ * @package Shaper
+ *
+ * @coversDefaultClass \Shaper\Validator\ValidateableBase
+ */
+class ValidateableBaseTest extends TestCase {
+
+  /**
+   * @covers ::getErrors
+   */
+  public function testGetErrors() {
+    $sut = new FakeValidateable();
+    $sut->setErrors('foo');
+    $this->assertSame('foo', $sut->getErrors());
+  }
+
+  /**
+   * @covers ::resetErrors
+   */
+  public function testResetErrors() {
+    $sut = new FakeValidateable();
+    $sut->setErrors('foo');
+    $sut->resetErrors();
+    $this->assertEquals([], $sut->getErrors());
+  }
+
+}