Add the Behat recipe

behat/symfony2-extension/2.1/behat.yml.dist

@@ -0,0 +1,13 @@
+default:
+    suites:
+        default:
+            contexts:
+                - FeatureContext:
+                    kernel: '@kernel'
+
+    extensions:
+        Behat\Symfony2Extension:
+            kernel:
+                bootstrap: features/bootstrap/bootstrap.php
+                path: src/Kernel.php
+                class: App\Kernel

behat/symfony2-extension/2.1/features/bootstrap/FeatureContext.php

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+<?php
+
+use Behat\Behat\Context\Context;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\KernelInterface;
+
+class FeatureContext implements Context
+{
+    /**
+     * @var KernelInterface
+     */
+    private $kernel;
+
+    /**
+     * @var Response|null
+     */
+    private $response;
+
+    public function __construct(KernelInterface $kernel)
+    {
+        $this->kernel = $kernel;
+    }
+
+    /**
+     * @When this is a demo scenario that sends a request to :path
+     */
+    public function thisIsADemoScenarioThatSendsARequestTo(string $path)
+    {
+        $this->response = $this->kernel->handle(Request::create($path, 'GET'));
+    }
+
+    /**
+     * @Then the response should be received
+     */
+    public function theResponseShouldBeReceived()
+    {
+        assert($this->response !== null);
+    }
+}

behat/symfony2-extension/2.1/features/bootstrap/bootstrap.php

@@ -0,0 +1,10 @@
+<?php
+
+use Symfony\Component\Dotenv\Dotenv;
+
+require __DIR__.'/../../vendor/autoload.php';
+
+// The check is to ensure we don't use .env in production
+if (!getenv('APP_ENV')) {
+    (new Dotenv())->load(__DIR__.'/../../.env');
+}

behat/symfony2-extension/2.1/features/demo.feature

@@ -0,0 +1,8 @@
+Feature:
+  In order to proves that the Behat Symfony extension is correctly installed
+  As a user
+  I want to have a demo scenario
+
+  Scenario: It receives a response from Symfony's kernel
+    When this is a demo scenario that sends a request to "/"
+    Then the response should be received

behat/symfony2-extension/2.1/manifest.json

@@ -0,0 +1,7 @@
+{
+    "copy-from-recipe": {
+        "behat.yml.dist": "behat.yml.dist",
+        "features/": "features/"
+    },
+    "aliases": ["behat"]
+}

behat/symfony2-extension/2.1/post-install.txt

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+<bg=blue;fg=white> Next for Behat/SymfonyExtension </>
+    Run <comment>vendor/bin/behat</> to run the demo tests.