fix: python version and tests

Dockerfile

@@ -12,11 +12,14 @@ RUN (curl -sL https://deb.nodesource.com/setup_16.x | bash) \
         locales \
         nodejs \
         perl \
+        python \
+        python-pip \
         python3 \
         python3-pip \
         ruby-full \
         unzip \
         zlib1g-dev \
+ && pip install docutils==0.14 \
  && pip3 install docutils==0.14 \
  && gem install bundler \
  && rm -rf /var/lib/apt/lists/* \

composer.json

@@ -6,11 +6,11 @@
         "symfony/process": "^5.1"
     },
     "require-dev": {
+        "beberlei/assert": "^3.3",
         "behat/behat": "^3.5",
         "guzzlehttp/guzzle": "^7.2",
         "pedrotroller/php-cs-custom-fixer": "^2.15",
-        "sebastian/diff": "^4.0",
-        "webmozart/assert": "^1.3"
+        "sebastian/diff": "^4.0"
     },
     "autoload-dev": {
         "psr-4": {

features/FeatureContext.php

@@ -2,6 +2,7 @@
 
 declare(strict_types=1);
 
+use Assert\InvalidArgumentException;
 use Behat\Behat\Tester\Exception\PendingException;
 use Behat\Behat\Context\Context;
 use Behat\Gherkin\Node\PyStringNode;
@@ -10,7 +11,7 @@
 use GuzzleHttp\Exception\ServerException;
 use Psr\Http\Message\ResponseInterface;
 use SebastianBergmann\Diff\Differ;
-use Webmozart\Assert\Assert;
+use Assert\Assert;
 
 final class FeatureContext implements Context
 {
@@ -63,13 +64,11 @@ public function iShouldGetTheFollowingHtml(PyStringNode $html): void
             throw new Exception('No request sent.');
         }
 
-        Assert::eq($this->response->getStatusCode(), 200);
-
         try {
-            Assert::eq(
-                (string) $this->response->getBody(),
-                (string) $html,
-            );
+            Assert::that($this->response->getStatusCode())
+                ->eq(200);
+            Assert::that((string) $this->response->getBody())
+                ->eq($html);
         } catch (InvalidArgumentException $exception) {
             echo (new Differ())->diff(
                 (string) $html,
@@ -89,6 +88,7 @@ public function iShouldGetAnUnexpectedMediaTypeHttpResponse(): void
             throw new Exception('No request sent.');
         }
 
-        Assert::eq($this->response->getStatusCode(), 415);
+        Assert::that($this->response->getStatusCode())
+            ->eq(415);
     }
 }