[php][user_email-01_base] Add NewsletterController

Author: rgomezcasas

examples/php/php-user_email-01_base/src/Controller/NewsletterController.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Controller;
+
+use CodelyTv\Model\Newsletter;
+use InvalidArgumentException;
+
+final class NewsletterController
+{
+    public function post(string $emailAddress): Newsletter
+    {
+        if ('' === $emailAddress) {
+            throw new InvalidArgumentException('The email address is empty');
+        }
+
+        if (!filter_var($emailAddress, FILTER_VALIDATE_EMAIL)) {
+            throw new InvalidArgumentException("The email address <$emailAddress> is not valid");
+        }
+
+        if (!(strpos($emailAddress, '@yahoo') || strpos($emailAddress, '@gmail') || strpos($emailAddress, '@outlook'))) {
+            throw new InvalidArgumentException("The email address <$emailAddress> has not a common provider");
+        }
+
+        return new Newsletter($emailAddress);
+    }
+}

examples/php/php-user_email-01_base/src/Model/Newsletter.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Model;
+
+final class Newsletter
+{
+    private string $emailAddress;
+
+    public function __construct(string $emailAddress)
+    {
+        $this->emailAddress = $emailAddress;
+    }
+
+    public function emailAddress(): string
+    {
+        return $this->emailAddress;
+    }
+}

examples/php/php-user_email-01_base/tests/Controller/NewsletterControllerTest.php

@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Tests\Controller;
+
+use CodelyTv\Controller\NewsletterController;
+use CodelyTv\Model\Newsletter;
+use InvalidArgumentException;
+use PHPUnit\Framework\TestCase;
+
+final class NewsletterControllerTest extends TestCase
+{
+    /** @test */
+    public function it_should_create_a_valid_newsletter(): void
+    {
+        $controller = new NewsletterController();
+
+        $emailAddress = 'codely@gmail.com';
+
+        self::assertEquals(new Newsletter('codely@gmail.com'), $controller->post($emailAddress));
+    }
+
+    /** @test */
+    public function it_should_not_create_a_newsletter_with_an_empty_email(): void
+    {
+        $controller = new NewsletterController();
+
+        $emailAddress = '';
+
+        $this->expectExceptionObject(new InvalidArgumentException('The email address is empty'));
+
+        $controller->post($emailAddress);
+    }
+
+    /** @test */
+    public function it_should_not_create_a_newsletter_with_an_invalid_formatted_email(): void
+    {
+        $controller = new NewsletterController();
+
+        $emailAddress = 'codely[at]gmail.com';
+
+        $this->expectExceptionObject(new InvalidArgumentException("The email address <$emailAddress> is not valid"));
+
+        $controller->post($emailAddress);
+    }
+
+    /** @test */
+    public function it_should_not_create_a_newsletter_with_a_non_common_email_provider(): void
+    {
+        $controller = new NewsletterController();
+
+        $emailAddress = 'codely@clubdefansdejavi.io';
+
+        $this->expectExceptionObject(
+            new InvalidArgumentException("The email address <$emailAddress> has not a common provider")
+        );
+
+        $controller->post($emailAddress);
+    }
+}