Rename custom module directories

- Rename `opdavies_blog` to `blog`.
- Rename `opdavies_blog_test` to `blog_test`.
- Rename `opdavies_talks` to `talks`.
- Rename `opdavies_talks_test` to `talks_test`.

The files within the directories haven't changed, so there is no
breaking change caused by renaming the directories.

 Please enter the commit message for your changes. Lines starting

web/modules/custom/blog/tests/src/Kernel/Entity/Node/PostTest.php

@@ -0,0 +1,87 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\custom\Kernel\Entity\Node;
+
+use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
+use Drupal\opdavies_blog_test\Factory\PostFactory;
+
+final class PostTest extends EntityKernelTestBase {
+
+  public static $modules = [
+    // Core.
+    'node',
+    'link',
+    'taxonomy',
+
+    // Contrib.
+    'discoverable_entity_bundle_classes',
+
+    // Custom.
+    'opdavies_blog',
+    'opdavies_blog_test',
+  ];
+
+  /** @test */
+  public function it_can_determine_if_a_post_contains_a_tweet(): void {
+    $post = (new PostFactory())->create();
+    $post->save();
+
+    $this->assertFalse($post->hasTweet());
+
+    $post = (new PostFactory())->create(['field_has_tweet' => TRUE]);
+    $post->save();
+
+    $this->assertTrue($post->hasTweet());
+  }
+
+  /** @test */
+  public function it_converts_a_post_to_a_tweet(): void {
+    $post = (new PostFactory())
+      ->setTitle('Creating a custom PHPUnit command for DDEV')
+      ->withTags(['Automated testing', 'DDEV', 'Drupal', 'Drupal 8', 'PHP'])
+      ->create();
+
+    $post->save();
+
+    $expected = <<<EOF
+    Creating a custom PHPUnit command for DDEV
+
+    http://localhost/node/1
+
+    #AutomatedTesting #DDEV #Drupal #Drupal8 #PHP
+    EOF;
+
+    $this->assertSame($expected, $post->toTweet());
+  }
+
+  /** @test */
+  public function certain_terms_are_not_added_as_hashtags(): void {
+    $post = (new PostFactory())
+      ->setTitle('Drupal Planet should not be added as a hashtag')
+      ->withTags(['Drupal', 'Drupal Planet', 'PHP'])
+      ->create();
+
+    $post->save();
+
+    $expected = <<<EOF
+    Drupal Planet should not be added as a hashtag
+
+    http://localhost/node/1
+
+    #Drupal #PHP
+    EOF;
+
+    $this->assertSame($expected, $post->toTweet());
+  }
+
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installEntitySchema('taxonomy_term');
+
+    $this->installConfig(['opdavies_blog_test']);
+  }
+
+}

web/modules/custom/blog/tests/src/Kernel/ReorderBlogTagsTest.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace Drupal\Tests\opdavies_blog\Kernel;
+
+use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
+use Drupal\node\Entity\Node;
+use Drupal\opdavies_blog\Entity\Node\Post;
+use Drupal\taxonomy\Entity\Vocabulary;
+use Drupal\taxonomy\TermInterface;
+use Drupal\taxonomy\VocabularyInterface;
+use Drupal\Tests\node\Traits\NodeCreationTrait;
+use Drupal\Tests\taxonomy\Traits\TaxonomyTestTrait;
+
+final class ReorderBlogTagsTest extends EntityKernelTestBase {
+
+  use NodeCreationTrait;
+  use TaxonomyTestTrait;
+
+  public static $modules = [
+    // Core.
+    'node',
+    'taxonomy',
+    'link',
+
+    // Contrib.
+    'discoverable_entity_bundle_classes',
+    'hook_event_dispatcher',
+
+    // Custom.
+    'opdavies_blog_test',
+    'opdavies_blog',
+  ];
+
+  /** @test */
+  public function it_reorders_tags_on_blog_posts_to_be_arranged_alphabetically(): void {
+    /** @var VocabularyInterface $vocabulary */
+    $vocabulary = Vocabulary::load('tags');
+
+    $this->createTerm($vocabulary, ['name' => 'Drupal']); // 1
+    $this->createTerm($vocabulary, ['name' => 'PHP']); // 2
+    $this->createTerm($vocabulary, ['name' => 'Symfony']); // 3
+
+    $post = $this->createNode([
+      'field_tags' => [3, 1, 2],
+      'type' => 'post',
+    ]);
+
+    /** @var Post $post */
+    $post = Node::load($post->id());
+
+    $this->assertSame(
+      ['Drupal', 'PHP', 'Symfony'],
+      $post->getTags()
+        ->map(fn(TermInterface $tag) => $tag->label())
+        ->toArray()
+    );
+  }
+
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installConfig([
+      'filter',
+      'opdavies_blog_test',
+    ]);
+
+    $this->installEntitySchema('taxonomy_vocabulary');
+    $this->installEntitySchema('taxonomy_term');
+  }
+
+}