Specification and tests for the aggregate, done via behat+gherkin

behat.yml

@@ -5,6 +5,11 @@ default:
         - 'Test\Specification\Authentication\AuthenticationContext'
       paths:
         - 'feature/authentication.feature'
+    authentication-ui:
+      contexts:
+        - 'Test\E2E\Authentication\AuthenticationContext'
+      paths:
+        - 'feature/authentication.feature'
     blog-post:
       contexts:
         - 'Test\Specification\Blog\BlogPostContext'

test/Specification/Authentication/AuthenticationContext.php

@@ -4,8 +4,87 @@
 
 namespace Test\Specification\Authentication;
 
+use Authentication\Aggregate\User;
+use Authentication\ReadModel\EmailIsRegistered;
+use Authentication\ReadModel\IsUserBlocked;
+use Authentication\Service\NotifyOfIntrusionDetection;
+use Authentication\Value\ClearTextPassword;
+use Authentication\Value\EmailAddress;
 use Behat\Behat\Context\Context;
+use Behat\Behat\Tester\Exception\PendingException;
 
 final class AuthenticationContext implements Context
 {
+    /** @var EmailIsRegistered|null */
+    private $emailIsRegistered;
+
+    /** @var User|null */
+    private $user;
+
+    /**
+     * @Given /^there are no registered users$/
+     */
+    public function thereAreNoRegisteredUsers() : void
+    {
+        $this->emailIsRegistered = new class implements EmailIsRegistered
+        {
+            public function __invoke(EmailAddress $emailAddress) : bool
+            {
+                return false;
+            }
+        };
+    }
+
+    /**
+     * @When /^a user registers with the website$/
+     */
+    public function aUserRegistersWithTheWebsite() : void
+    {
+        \assert(null !== $this->emailIsRegistered);
+
+        $this->user = User::register(
+            EmailAddress::fromEmailAddress('[email protected]'),
+            ClearTextPassword::fromInputPassword('potato'),
+            $this->emailIsRegistered
+        );
+    }
+
+    /**
+     * @Then /^the user can log into the website$/
+     */
+    public function theUserCanLogIntoTheWebsite() : void
+    {
+        \assert(null !== $this->user);
+
+        $this->user->authenticate(
+            ClearTextPassword::fromInputPassword('potato'),
+            new class implements IsUserBlocked {
+                public function __invoke(EmailAddress $emailAddress) : bool
+                {
+                    return false;
+                }
+            },
+            new class implements NotifyOfIntrusionDetection {
+                public function __invoke(EmailAddress $emailAddress) : void
+                {
+                }
+            }
+        );
+    }
+
+    /**
+     * @Given /^there is a registered user$/
+     */
+    public function thereIsARegisteredUser() : void
+    {
+        throw new PendingException();
+    }
+
+    /**
+     * @Then /^the user cannot log into the website with a non\-matching password$/
+     */
+    public function theUserCannotLogIntoTheWebsiteWithANonMatchingPassword() : void
+    {
+        throw new PendingException();
+    }
 }