Fix bug preventing changes of Mink default session service

composer.json

@@ -21,6 +21,7 @@
         "behat/mink": "^1.7",
         "behat/mink-browserkit-driver": "^1.3",
         "behat/mink-extension": "^2.2",
+        "behat/mink-selenium2-driver": "^1.3",
         "friends-of-behat/service-container-extension": "^1.0",
         "phpstan/phpstan-shim": "^0.11",
         "sylius-labs/coding-standard": "^3.0",

features/mink_integration/switching_mink_sessions.feature

@@ -0,0 +1,70 @@
+Feature: Switching Mink sessions
+
+    Scenario: Switching Mink sessions
+        Given a working Symfony application with SymfonyExtension configured
+        And a Behat configuration containing:
+        """
+        default:
+            extensions:
+                Behat\MinkExtension:
+                    base_url: "http://localhost:8080/"
+                    default_session: symfony
+                    javascript_session: selenium2
+                    sessions:
+                        symfony:
+                            symfony: ~
+                        selenium2:
+                            selenium2: ~
+
+
+            suites:
+                default:
+                    contexts:
+                        - App\Tests\SomeContext
+        """
+        And a feature file containing:
+        """
+        Feature:
+            Scenario:
+                Then I should use Mink session with "FriendsOfBehat\SymfonyExtension\Driver\SymfonyDriver" as a driver
+
+            @javascript
+            Scenario:
+                Then I should use Mink session with "Behat\Mink\Driver\Selenium2Driver" as a driver
+        """
+        And a context file "tests/SomeContext.php" containing:
+        """
+        <?php
+
+        namespace App\Tests;
+
+        use Behat\Behat\Context\Context;
+        use Behat\Mink\Session;
+
+        final class SomeContext implements Context {
+            private $session;
+
+            public function __construct(Session $session)
+            {
+                $this->session = $session;
+            }
+
+            /** @Then I should use Mink session with :driver as a driver*/
+            public function shouldUseDriver(string $driverClass): void
+            {
+                var_dump(get_class($this->session));
+                var_dump(get_class($this->session->getDriver()));
+                assert($this->session->getDriver() instanceof $driverClass);
+            }
+        }
+        """
+        And a YAML services file containing:
+            """
+            services:
+                App\Tests\SomeContext:
+                    public: true
+                    arguments:
+                        - '@behat.mink.default_session'
+            """
+        When I run Behat
+        Then it should pass

src/Bundle/DependencyInjection/FriendsOfBehatSymfonyExtensionExtension.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace FriendsOfBehat\SymfonyExtension\Bundle\DependencyInjection;
 
 use Behat\Behat\Context\Context;
+use Behat\Mink\Mink;
 use Behat\Mink\Session;
 use FriendsOfBehat\SymfonyExtension\Mink\MinkParameters;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
@@ -51,10 +52,18 @@ final class FriendsOfBehatSymfonyExtensionExtension extends Extension implements
 
     private function registerMinkDefaultSession(ContainerBuilder $container): void
     {
-        $minkDefaultSessionDefinition = new Definition(Session::class, ['fob_symfony.mink.default_session']);
+        $minkDefinition = new Definition(Mink::class, ['mink']);
+        $minkDefinition->setPublic(true);
+        $minkDefinition->setLazy(true);
+        $minkDefinition->setFactory([new Reference('behat.service_container'), 'get']);
+
+        $container->setDefinition('behat.mink', $minkDefinition);
+        $container->setAlias(Mink::class, 'behat.mink');
+
+        $minkDefaultSessionDefinition = new Definition(Session::class);
         $minkDefaultSessionDefinition->setPublic(true);
         $minkDefaultSessionDefinition->setLazy(true);
-        $minkDefaultSessionDefinition->setFactory([new Reference('behat.service_container'), 'get']);
+        $minkDefaultSessionDefinition->setFactory([new Reference('behat.mink'), 'getSession']);
 
         $container->setDefinition('behat.mink.default_session', $minkDefaultSessionDefinition);
         $container->setAlias(Session::class, 'behat.mink.default_session');