module-rest/src/Codeception/Module/REST.php at master · Codeception/module-rest · GitHub

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<?php

declare(strict_types=1);

namespace Codeception\Module;

use ArrayAccess;
use Codeception\Exception\ConfigurationException;
use Codeception\Exception\ExternalUrlException;
use Codeception\Exception\ModuleConfigException;
use Codeception\Exception\ModuleException;
use Codeception\Lib\Framework;
use Codeception\Lib\InnerBrowser;
use Codeception\Lib\Interfaces\API;
use Codeception\Lib\Interfaces\ConflictsWithModule;
use Codeception\Lib\Interfaces\DependsOnModule;
use Codeception\Lib\Interfaces\PartedModule;
use Codeception\Module;
use Codeception\PHPUnit\Constraint\JsonContains;
use Codeception\PHPUnit\Constraint\JsonType as JsonTypeConstraint;
use Codeception\TestInterface;
use Codeception\Util\JsonArray;
use Codeception\Util\JsonType;
use Codeception\Util\Soap as XmlUtils;
use Codeception\Util\XmlStructure;
use JsonException;
use JsonSchema\Constraints\Constraint as JsonConstraint;
use JsonSchema\Validator as JsonSchemaValidator;
use JsonSerializable;
use PHPUnit\Framework\Assert;
use Symfony\Component\BrowserKit\AbstractBrowser;
use Symfony\Component\HttpKernel\HttpKernelBrowser;

/**
 * Module for testing REST WebService.
 *
 * This module requires either [PhpBrowser](https://codeception.com/docs/modules/PhpBrowser)
 * or a framework module (e.g. [Symfony](https://codeception.com/docs/modules/Symfony), [Laravel](https://codeception.com/docs/modules/Laravel5))
 * to send the actual HTTP request.
 *
 * ## Configuration
 *
 * * `url` *optional* - the url of api
 * * `shortDebugResponse` *optional* - number of chars to limit the API response length
 *
 * ### Example
 *
 * ```yaml
 * modules:
 *    enabled:
 *        - REST:
 *            depends: PhpBrowser
 *            url: 'https://example.com/api/v1/'
 *            shortDebugResponse: 300 # only the first 300 characters of the response
 * ```
 *
 * In case you need to configure low-level HTTP headers, that's done on the PhpBrowser level like so:
 *
 * ```yaml
 * modules:
 *    enabled:
 *        - REST:
 *            depends: PhpBrowser
 *            url: &url 'https://example.com/api/v1/'
 *    config:
 *        PhpBrowser:
 *            url: *url
 *            headers:
 *                Content-Type: application/json
 * ```
 *
 * ## JSONPath
 *
 * [JSONPath](https://goessner.net/articles/JsonPath/) is the equivalent to XPath, for querying JSON data structures.
 * Here's an [Online JSONPath Expressions Tester](https://jsonpath.curiousconcept.com/)
 *
 * ## Public Properties
 *
 * * headers - array of headers going to be sent.
 * * params - array of sent data
 * * response - last response (string)
 *
 * ## Parts
 *
 * * Json - actions for validating Json responses (no Xml responses)
 * * Xml - actions for validating XML responses (no Json responses)
 *
 * ## Conflicts
 *
 * Conflicts with SOAP module
 *
 */
class REST extends Module implements DependsOnModule, PartedModule, API, ConflictsWithModule
{
    /**
     * @var string[]
     */
    public const QUERY_PARAMS_AWARE_METHODS = ['GET', 'HEAD', 'OPTIONS'];

    /**
     * @var array<string, string>
     */
    protected array $config = [
        'url' => '',
        'aws' => ''
    ];

    protected string $dependencyMessage = <<<EOF
Example configuring PhpBrowser as backend for REST module.
--
modules:
    enabled:
        - REST:
            depends: PhpBrowser
            url: http://localhost/api/
            shortDebugResponse: 300
--
Framework modules can be used for testing of API as well.
EOF;

    protected int $DEFAULT_SHORTEN_VALUE = 150;

    /**
     * @var HttpKernelBrowser|AbstractBrowser
     */
    public $client;

    public bool $isFunctional = false;

    protected ?InnerBrowser $connectionModule = null;

    /** @var array */
    public $params = [];

    public ?string $response = null;

    public function _before(TestInterface $test): void
    {
        $this->client = &$this->connectionModule->client;
        $this->resetVariables();
    }

    protected function resetVariables(): void
    {
        $this->params = [];
        $this->response = '';
        $this->connectionModule->headers = [];
    }

    public function _conflicts(): string
    {
        return \Codeception\Lib\Interfaces\API::class;
    }

    public function _depends(): array
    {
        return [InnerBrowser::class => $this->dependencyMessage];
    }

    /**
     * @return string[]
     */
    public function _parts(): array
    {
        return ['xml', 'json'];
    }

    public function _inject(InnerBrowser $connection)
    {
        $this->connectionModule = $connection;
        if ($this->connectionModule instanceof Framework) {
            $this->isFunctional = true;
        }

        if ($this->connectionModule instanceof PhpBrowser && !$this->connectionModule->_getConfig('url')) {
            $this->connectionModule->_setConfig(['url' => $this->config['url']]);
        }
    }

    public function _failed(TestInterface $test, $fail)
    {
        if ($this->response === null || $this->response === '' || $this->response === '0') {
            return;
        }

        $printedResponse = $this->response;
        if ($this->isBinaryData($printedResponse)) {
            $printedResponse = $this->binaryToDebugString($printedResponse);
        }

        $test->getMetadata()->addReport('body', $printedResponse);
    }

    protected function getRunningClient(): AbstractBrowser
    {
        if ($this->client->getInternalRequest() === null) {
            throw new ModuleException($this, "Response is empty. Use `\$I->sendXXX()` methods to send HTTP request");
        }

        return $this->client;
    }

    /**
     * Sets a HTTP header to be used for all subsequent requests. Use [`unsetHttpHeader`](#unsetHttpHeader) to unset it.
     *
     * ```php
     * <?php
     * $I->haveHttpHeader('Content-Type', 'application/json');
     * // all next requests will contain this header
     * ```
     *
     * @part json
     * @part xml
     */
    public function haveHttpHeader(string $name, string $value): void
    {
        $this->connectionModule->haveHttpHeader($name, $value);
    }

    /**
     * Unsets a HTTP header (that was originally added by [haveHttpHeader()](#haveHttpHeader)),
     * so that subsequent requests will not send it anymore.
     *
     * Example:
     * ```php
     * <?php
     * $I->haveHttpHeader('X-Requested-With', 'Codeception');
     * $I->sendGet('test-headers.php');
     * // ...
     * $I->unsetHttpHeader('X-Requested-With');
     * $I->sendPost('some-other-page.php');
     * ```
     *
     * @param string $name the name of the header to unset.
     * @part json
     * @part xml
     */
    public function unsetHttpHeader(string $name): void
    {
        $this->connectionModule->deleteHeader($name);
    }

    /**
     * @deprecated Use [unsetHttpHeader](#unsetHttpHeader) instead
     */
    public function deleteHeader(string $name): void
    {
        $this->unsetHttpHeader($name);
    }

    /**
     * Checks over the given HTTP header and (optionally)
     * its value, asserting that are there
     *
     * @param $value
     * @part json
     * @part xml
     */
    public function seeHttpHeader(string $name, $value = null): void
    {
        if ($value !== null) {
            $this->assertSame(
                $value,
                $this->getRunningClient()->getInternalResponse()->getHeader($name)
            );
            return;
        }

        $this->assertNotNull($this->getRunningClient()->getInternalResponse()->getHeader($name));
    }

    /**
     * Checks over the given HTTP header and (optionally)
     * its value, asserting that are not there
     *
     * @param $value
     * @part json
     * @part xml
     */
    public function dontSeeHttpHeader(string $name, $value = null): void
    {
        if ($value !== null) {
            $this->assertNotEquals(
                $value,
                $this->getRunningClient()->getInternalResponse()->getHeader($name)
            );
            return;
        }

        $this->assertNull($this->getRunningClient()->getInternalResponse()->getHeader($name));
    }

    /**
     * Checks that http response header is received only once.
     * HTTP RFC2616 allows multiple response headers with the same name.
     * You can check that you didn't accidentally sent the same header twice.
     *
     * ``` php
     * <?php
     * $I->seeHttpHeaderOnce('Cache-Control');
     * ```
     *
     * @part json
     * @part xml
     */
    public function seeHttpHeaderOnce(string $name): void
    {
        $headers = $this->getRunningClient()->getInternalResponse()->getHeader($name, false);
        $this->assertCount(1, $headers);
    }

    /**
     * Returns the value of the specified header name
     *
     * @param bool $first Whether to return the first value or all header values
     * @return string|array The first header value if $first is true, an array of values otherwise
     * @part json
     * @part xml
     */
    public function grabHttpHeader(string $name, bool $first = true): string|array|null
    {
        return $this->getRunningClient()->getInternalResponse()->getHeader($name, $first);
    }

    /**
     * Adds HTTP authentication via username/password.
     *
     * @part json
     * @part xml
     */
    public function amHttpAuthenticated(string $username, string $password): void
    {
        if ($this->isFunctional) {
            $this->client->setServerParameter('PHP_AUTH_USER', $username);
            $this->client->setServerParameter('PHP_AUTH_PW', $password);
        } else {
            $this->client->setAuth($username, $password);
        }
    }

    /**
     * Adds Digest authentication via username/password.
     *
     * @part json
     * @part xml
     */
    public function amDigestAuthenticated(string $username, string $password): void
    {
        if ($this->isFunctional) {
            throw new ModuleException(__METHOD__, 'Not supported by functional modules');
        }

        $this->client->setAuth($username, $password, 'digest');
    }

    /**
     * Adds Bearer authentication via access token.
     *
     * @part json
     * @part xml
     */
    public function amBearerAuthenticated(string $accessToken): void
    {
        $this->haveHttpHeader('Authorization', 'Bearer ' . $accessToken);
    }

    /**
     * Adds NTLM authentication via username/password.
     * Requires client to be Guzzle >=6.3.0
     * Out of scope for functional modules.
     *
     * Example:
     * ```php
     * <?php
     * $I->amNTLMAuthenticated('jon_snow', 'targaryen');
     * ```
     *
     * @throws \Codeception\Exception\ModuleException
     * @part json
     * @part xml
     */
    public function amNTLMAuthenticated(string $username, string $password): void
    {
        if ($this->isFunctional) {
            throw new ModuleException(__METHOD__, 'Not supported by functional modules');
        }

        if (!defined('\GuzzleHttp\Client::MAJOR_VERSION') && !defined('\GuzzleHttp\Client::VERSION')) {
            throw new ModuleException(__METHOD__, 'Not supported if not using a Guzzle client');
        }

        $this->client->setAuth($username, $password, 'ntlm');
    }

    /**
     * Allows to send REST request using AWS Authorization
     *
     * Only works with PhpBrowser
     * Example Config:
     * ```yml
     * modules:
     *      enabled:
     *          - REST:
     *              aws:
     *                  key: accessKey
     *                  secret: accessSecret
     *                  service: awsService
     *                  region: awsRegion
     * ```
     * Code:
     * ```php
     * <?php
     * $I->amAWSAuthenticated();
     * ```
     * @throws \Codeception\Exception\ConfigurationException
     */
    public function amAWSAuthenticated(array $additionalAWSConfig = []): void
    {
        if (method_exists($this->client, 'setAwsAuth')) {
            $config = array_merge($this->config['aws'], $additionalAWSConfig);

            if (!isset($config['key'])) {
                throw new ConfigurationException('AWS Key is not set');
            }

            if (!isset($config['secret'])) {
                throw new ConfigurationException('AWS Secret is not set');
            }

            if (!isset($config['service'])) {
                throw new ConfigurationException('AWS Service is not set');
            }

            if (!isset($config['region'])) {
                throw new ConfigurationException('AWS Region is not set');
            }

            $this->client->setAwsAuth($config);
        }
    }

    /**
     * Sends a POST request to given uri. Parameters and files can be provided separately.
     *
     * Example:
     * ```php
     * <?php
     * //simple POST call
     * $response = $I->sendPost('/message', ['subject' => 'Read this!', 'to' => 'johndoe@example.com']);
     * //simple upload method
     * $I->sendPost('/message/24', ['inline' => 0], ['attachmentFile' => codecept_data_dir('sample_file.pdf')]);
     * //uploading a file with a custom name and mime-type. This is also useful to simulate upload errors.
     * $I->sendPost('/message/24', ['inline' => 0], [
     *     'attachmentFile' => [
     *          'name' => 'document.pdf',
     *          'type' => 'application/pdf',
     *          'error' => UPLOAD_ERR_OK,
     *          'size' => filesize(codecept_data_dir('sample_file.pdf')),
     *          'tmp_name' => codecept_data_dir('sample_file.pdf')
     *     ]
     * ]);
     * // If your field names contain square brackets (e.g. `<input type="text" name="form[task]">`),
     * // PHP parses them into an array. In this case you need to pass the fields like this:
     * $I->sendPost('/add-task', ['form' => [
     *     'task' => 'lorem ipsum',
     *     'category' => 'miscellaneous',
     * ]]);
     * ```
     *
     * @param array|string|\JsonSerializable $params
     * @param array $files A list of filenames or "mocks" of $_FILES (each entry being an array with the following
     *                     keys: name, type, error, size, tmp_name (pointing to the real file path). Each key works
     *                     as the "name" attribute of a file input field.
     *
     * @see https://php.net/manual/en/features.file-upload.post-method.php
     * @see codecept_data_dir()
     * @part json
     * @part xml
     */
    public function sendPost(string $url, $params = [], array $files = [])
    {
        return $this->execute('POST', $url, $params, $files);
    }

    /**
     * Sends a HEAD request to given uri.
     *
     * @part json
     * @part xml
     */
    public function sendHead(string $url, array $params = [])
    {
        return $this->execute('HEAD', $url, $params);
    }

    /**
     * Sends an OPTIONS request to given uri.
     *
     * @part json
     * @part xml
     */
    public function sendOptions(string $url, array $params = []): void
    {
        $this->execute('OPTIONS', $url, $params);
    }

    /**
     * Sends a GET request to given uri.
     *
     * ```php
     * <?php
     * $response = $I->sendGet('/users');
     *
     * // send get with query params
     * $I->sendGet('/orders', ['id' => 1])
     * ```
     *
     * @part json
     * @part xml
     */
    public function sendGet(string $url, array $params = [])
    {
        return $this->execute('GET', $url, $params);
    }

    /**
     * Sends PUT request to given uri.
     *
     * ```php
     * <?php
     * $response = $I->sendPut('/message/1', ['subject' => 'Read this!']);
     * ```
     *
     * @param array|string|\JsonSerializable $params
     * @part json
     * @part xml
     */
    public function sendPut(string $url, $params = [], array $files = [])
    {
        return $this->execute('PUT', $url, $params, $files);
    }

    /**
     * Sends PATCH request to given uri.
     *
     * ```php
     * <?php
     * $response = $I->sendPatch('/message/1', ['subject' => 'Read this!']);
     * ```
     *
     * @param array|string|\JsonSerializable $params
     * @part json
     * @part xml
     */
    public function sendPatch(string $url, $params = [], array $files = [])
    {
        return $this->execute('PATCH', $url, $params, $files);
    }

    /**
     * Sends DELETE request to given uri.
     *
     * ```php
     * <?php
     * $I->sendDelete('/message/1');
     * ```
     *
     * @part json
     * @part xml
     */
    public function sendDelete(string $url, array $params = [], array $files = [])
    {
        return $this->execute('DELETE', $url, $params, $files);
    }

    /**
     * Sends a HTTP request.
     *
     * @param array|string|\JsonSerializable $params
     * @part json
     * @part xml
     */
    public function send(string $method, string $url, $params = [], array $files = [])
    {
        return $this->execute(strtoupper($method), $url, $params, $files);
    }

    /**
     * Sets Headers "Link" as one header "Link" based on linkEntries
     *
     * @param array $linkEntries (entry is array with keys "uri" and "link-param")
     *
     * @link https://tools.ietf.org/html/rfc2068#section-19.6.2.4
     *
     * @author samva.ua@gmail.com
     */
    private function setHeaderLink(array $linkEntries): void
    {
        $values = [];
        foreach ($linkEntries as $linkEntry) {
            Assert::assertArrayHasKey(
                'uri',
                $linkEntry,
                'linkEntry should contain property "uri"'
            );
            Assert::assertArrayHasKey(
                'link-param',
                $linkEntry,
                'linkEntry should contain property "link-param"'
            );
            $values[] = $linkEntry['uri'] . '; ' . $linkEntry['link-param'];
        }

        $this->haveHttpHeader('Link', implode(', ', $values));
    }

    /**
     * Sends LINK request to given uri.
     *
     * @param array $linkEntries (entry is array with keys "uri" and "link-param")
     *
     * @link https://tools.ietf.org/html/rfc2068#section-19.6.2.4
     *
     * @author samva.ua@gmail.com
     * @part json
     * @part xml
     */
    public function sendLink(string $url, array $linkEntries): void
    {
        $this->setHeaderLink($linkEntries);
        $this->execute('LINK', $url);
    }

    /**
     * Sends UNLINK request to given uri.
     *
     * @param array $linkEntries (entry is array with keys "uri" and "link-param")
     * @link https://tools.ietf.org/html/rfc2068#section-19.6.2.4
     * @author samva.ua@gmail.com
     * @part json
     * @part xml
     */
    public function sendUnlink(string $url, array $linkEntries): void
    {
        $this->setHeaderLink($linkEntries);
        $this->execute('UNLINK', $url);
    }

    /**
     * @param $method
     * @param $url
     * @param array|string|object $parameters
     * @param array $files
     * @throws ModuleException|ExternalUrlException|JsonException
     */
    protected function execute($method, $url, $parameters = [], $files = [])
    {
        // allow full url to be requested
        if (!$url) {
            $url = $this->config['url'];
        } elseif (!is_string($url)) {
            throw new ModuleException(__CLASS__, 'URL must be string');
        } elseif (!str_contains($url, '://') && $this->config['url']) {
            $url = rtrim($this->config['url'], '/') . '/' . ltrim($url, '/');
        }

        $this->params = $parameters;

        $isQueryParamsAwareMethod = in_array($method, self::QUERY_PARAMS_AWARE_METHODS, true);

        if ($isQueryParamsAwareMethod) {
            if (!is_array($parameters)) {
                throw new ModuleException(__CLASS__, $method . ' parameters must be passed in array format');
            }
        } else {
            $parameters = $this->encodeApplicationJson($method, $parameters);
        }

        if (is_array($parameters) || $isQueryParamsAwareMethod) {
            if ($isQueryParamsAwareMethod) {
                if (!empty($parameters)) {
                    if (str_contains($url, '?')) {
                        $url .= '&';
                    } else {
                        $url .= '?';
                    }

                    $url .= http_build_query($parameters);
                }

                $this->debugSection("Request", sprintf('%s %s', $method, $url));
                $files = [];
            } else {
                $this->debugSection("Request",
                    sprintf('%s %s ', $method, $url) . json_encode($parameters, JSON_PRESERVE_ZERO_FRACTION | JSON_THROW_ON_ERROR)
                );
                $files = $this->formatFilesArray($files);
            }

            $this->response = $this->connectionModule->_request($method, $url, $parameters, $files);
        } else {
            $requestData = $parameters;
            if ($this->isBinaryData($requestData)) {
                $requestData = $this->binaryToDebugString($requestData);
            }

            $this->debugSection("Request", sprintf('%s %s ', $method, $url) . $requestData);
            $this->response = $this->connectionModule->_request($method, $url, [], $files, [], $parameters);
        }

        $printedResponse = $this->response;
        if ($this->isBinaryData((string)$printedResponse)) {
            $printedResponse = $this->binaryToDebugString($printedResponse);
        }

        $short = $this->_getConfig('shortDebugResponse');

        if (!is_null($short)) {
            $printedResponse = $this->shortenMessage($printedResponse, $short);
            $this->debugSection("Shortened Response", $printedResponse);
        } else {
            $this->debugSection("Response", $printedResponse);
        }

        return $this->response;
    }

    /**
     * Check if data has non-printable bytes and it is not a valid unicode string
     *
     * @param string $data the text or binary data string
     */
    protected function isBinaryData(string $data): bool
    {
        return !ctype_print($data) && false === mb_detect_encoding($data, mb_detect_order(), true);
    }

    /**
     * Format a binary string for debug printing
     *
     * @param string $data the binary data string
     * @return string the debug string
     */
    protected function binaryToDebugString(string $data): string
    {
        return '[binary-data length:' . strlen($data) . ' md5:' . md5($data) . ']';
    }

    protected function encodeApplicationJson(string $method, $parameters)
    {
        if (
            array_key_exists('Content-Type', $this->connectionModule->headers)
            && ($this->connectionModule->headers['Content-Type'] === 'application/json'
                || preg_match('#^application/.+\+json$#', $this->connectionModule->headers['Content-Type'])
            )
        ) {
            if ($parameters instanceof JsonSerializable) {
                return json_encode($parameters, JSON_PRESERVE_ZERO_FRACTION | JSON_THROW_ON_ERROR);
            }

            if (is_array($parameters) || $parameters instanceof ArrayAccess) {
                $parameters = $this->scalarizeArray($parameters);
                return json_encode($parameters, JSON_PRESERVE_ZERO_FRACTION | JSON_THROW_ON_ERROR);
            }
        }

        if ($parameters instanceof JsonSerializable) {
            throw new ModuleException(__CLASS__, $method . ' parameters is JsonSerializable object, but Content-Type header is not set to application/json');
        }

        if (!is_string($parameters) && !is_array($parameters)) {
            throw new ModuleException(__CLASS__, $method . ' parameters must be array, string or object implementing JsonSerializable interface');
        }

        return $parameters;
    }

    private function formatFilesArray(array $files): array
    {
        foreach ($files as $name => $value) {
            if (is_string($value)) {
                $this->checkFileBeforeUpload($value);
                $files[$name] = [
                    'name' => basename($value),
                    'tmp_name' => $value,
                    'size' => filesize($value),
                    'type' => $this->getFileType($value),
                    'error' => 0,
                ];
                continue;
            }

            if (is_array($value)) {
                if (isset($value['tmp_name'])) {
                    $this->checkFileBeforeUpload($value['tmp_name']);
                    if (!isset($value['name'])) {
                        $value['name'] = basename($value['tmp_name']);
                    }

                    if (!isset($value['size'])) {
                        $value['size'] = filesize($value['tmp_name']);
                    }

                    if (!isset($value['type'])) {
                        $value['type'] = $this->getFileType($value['tmp_name']);
                    }

                    if (!isset($value['error'])) {
                        $value['error'] = 0;
                    }
                } else {
                    $files[$name] = $this->formatFilesArray($value);
                }
            } elseif (is_object($value)) {
                /**
                 * do nothing, probably the user knows what he is doing
                 * @issue https://github.com/Codeception/Codeception/issues/3298
                 */
            } else {
                throw new ModuleException(__CLASS__, sprintf('Invalid value of key %s in files array', $name));
            }
        }

        return $files;
    }

    private function getFileType($file): string
    {
        if (function_exists('mime_content_type') && mime_content_type($file)) {
            return mime_content_type($file);
        }

        return 'application/octet-stream';
    }

    private function checkFileBeforeUpload(string $file): void
    {
        if (!file_exists($file)) {
            throw new ModuleException(__CLASS__, sprintf('File %s does not exist', $file));
        }

        if (!is_readable($file)) {
            throw new ModuleException(__CLASS__, sprintf('File %s is not readable', $file));
        }

        if (!is_file($file)) {
            throw new ModuleException(__CLASS__, sprintf('File %s is not a regular file', $file));
        }
    }

    /**
     * Extends the function Module::validateConfig for shorten messages
     *
     */
    protected function validateConfig(): void
    {
        parent::validateConfig();

        $short = $this->_getConfig('shortDebugResponse');

        if (!is_null($short) && (!is_int($short) || $short < 0)) {
            throw new ModuleConfigException(__CLASS__, 'The value of "shortDebugMessage" should be integer and greater or equal "0".');
        }
    }

    /**
     * Checks whether last response was valid JSON.
     * This is done with json_last_error function.
     *
     * @part json
     */
    public function seeResponseIsJson(): void
    {
        $responseContent = $this->connectionModule->_getResponseContent();
        Assert::assertNotEquals('', $responseContent, 'response is empty');
        $this->decodeAndValidateJson($responseContent);
    }

    /**
     * Checks whether the last response contains text.
     *
     * @part json
     * @part xml
     */
    public function seeResponseContains(string $text): void
    {
        $this->assertStringContainsString($text, $this->connectionModule->_getResponseContent(), 'REST response contains');
    }

    /**
     * Checks whether last response do not contain text.
     *
     * @part json
     * @part xml
     */
    public function dontSeeResponseContains(string $text): void
    {
        $this->assertStringNotContainsString($text, $this->connectionModule->_getResponseContent(), 'REST response contains');
    }

    /**
     * Checks whether the last JSON response contains provided array.
     * The response is converted to array with json_decode($response, true)
     * Thus, JSON is represented by associative array.
     * This method matches that response array contains provided array.
     *
     * Examples:
     *
     * ``` php
     * <?php
     * // response: {name: john, email: john@gmail.com}
     * $I->seeResponseContainsJson(array('name' => 'john'));
     *
     * // response {user: john, profile: { email: john@gmail.com }}
     * $I->seeResponseContainsJson(array('email' => 'john@gmail.com'));
     *
     * ```
     *
     * This method recursively checks if one array can be found inside of another.
     *
     * @part json
     */
    public function seeResponseContainsJson(array $json = []): void
    {
        Assert::assertThat(
            $this->connectionModule->_getResponseContent(),
            new JsonContains($json)
        );
    }

    /**
     * Checks whether last response matches the supplied json schema (https://json-schema.org/)
     * Supply schema as json string.
     *
     * Examples:
     *
     * ``` php
     * <?php
     * // response: {"name": "john", "age": 20}
     * $I->seeResponseIsValidOnJsonSchemaString('{"type": "object"}');
     *
     * // response {"name": "john", "age": 20}
     * $schema = [
     *  'properties' => [
     *      'age' => [
     *          'type' => 'integer',
     *          'minimum' => 18
     *      ]
     *  ]
     * ];
     * $I->seeResponseIsValidOnJsonSchemaString(json_encode($schema));
     *
     * ```
     *
     * @part json
     */
    public function seeResponseIsValidOnJsonSchemaString(string $schema): void
    {
        $responseContent = $this->connectionModule->_getResponseContent();
        Assert::assertNotEquals('', $responseContent, 'response is empty');
        $responseObject = $this->decodeAndValidateJson($responseContent);

        Assert::assertNotEquals('', $schema, 'schema is empty');
        $schemaObject = $this->decodeAndValidateJson($schema, "Invalid schema json: %s. System message: %s.");

        $validator = new JsonSchemaValidator();
        $validator->validate($responseObject, $schemaObject, JsonConstraint::CHECK_MODE_VALIDATE_SCHEMA);

        $outcome = $validator->isValid();
        $message = '';
        if (!$outcome) {
            foreach ($validator->getErrors() as $error) {
                if ($message !== '') {
                    $message .= ', ';
                }
                $message .= sprintf("[Property: '%s'] %s", $error['property'], $error['message']);
            }
        }

        Assert::assertTrue(
            $outcome,
            $message
        );
    }

    /**
     * Checks whether last response matches the supplied json schema (https://json-schema.org/)
     * Supply schema as relative file path in your project directory or an absolute path
     *
     * @part json
     * @see codecept_absolute_path()
     */
    public function seeResponseIsValidOnJsonSchema(string $schemaFilename): void
    {
        $file = codecept_absolute_path($schemaFilename);
        if (!file_exists($file)) {
            throw new ModuleException(__CLASS__, sprintf('File %s does not exist', $file));
        }

        $this->seeResponseIsValidOnJsonSchemaString(file_get_contents($file));