feat(blog): add the initial blog page

web/modules/custom/my_module/tests/src/Functional/BlogPageTest.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\my_module\Functional;
+
+use Drupal\Tests\BrowserTestBase;
+use Symfony\Component\HttpFoundation\Response;
+
+final class BlogPageTest extends BrowserTestBase {
+
+  public $defaultTheme = 'stark';
+
+  protected static $modules = [
+    // Core.
+    'node',
+
+    // Custom.
+    'my_module',
+  ];
+
+  /** @test */
+  public function the_blog_page_loads_for_anonymous_users_and_contains_the_right_text(): void {
+    $this->drupalGet('/blog');
+
+    $assert = $this->assertSession();
+
+    $assert->statusCodeEquals(Response::HTTP_OK);
+    $assert->responseContains('<h1>Blog</h1>');
+    $assert->pageTextContains('Welcome to my blog!');
+  }
+
+}