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/talks/tests/src/Kernel/Repository/TalkRepositoryTest.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace Drupal\Tests\opdavies_talks\Kernel\Repository;
+
+use Drupal\node\NodeInterface;
+use Drupal\opdavies_talks\Entity\Node\Talk;
+use Drupal\opdavies_talks\Repository\TalkRepository;
+use Drupal\Tests\node\Traits\NodeCreationTrait;
+use Drupal\Tests\opdavies_talks\Kernel\TalksTestBase;
+
+final class TalkRepositoryTest extends TalksTestBase {
+
+  use NodeCreationTrait;
+
+  private TalkRepository $talkRepository;
+
+  /** @test */
+  public function get_all_talks() {
+    $this->createTalk(['title' => 'TDD - Test Driven Drupal']);
+    $this->createTalk(['title' => 'Taking Flight with Tailwind CSS']);
+    $this->createTalk(['title' => 'Upgrading to Drupal 9']);
+
+    $talks = $this->talkRepository->getAll();
+
+    $this->assertCount(3, $talks);
+    $this->assertSame(
+      [
+        1 => 'TDD - Test Driven Drupal',
+        2 => 'Taking Flight with Tailwind CSS',
+        3 => 'Upgrading to Drupal 9',
+      ],
+      $talks->map(fn(Talk $talk) => $talk->label())->toArray()
+    );
+  }
+
+  /** @test */
+  public function get_all_published_talks() {
+    $this->createTalk([
+      'title' => 'TDD - Test Driven Drupal',
+      'status' => NodeInterface::PUBLISHED,
+    ]);
+
+    $this->createTalk([
+      'title' => 'Taking Flight with Tailwind CSS',
+      'status' => NodeInterface::NOT_PUBLISHED,
+    ]);
+
+    $talks = $this->talkRepository->getAll(TRUE);
+
+    $this->assertCount(1, $talks);
+    $this->assertSame('TDD - Test Driven Drupal', $talks->first()->label());
+  }
+
+  /** @test */
+  public function it_only_returns_talk_nodes() {
+    $this->createNode(['type' => 'page']);
+
+    $talks = $this->talkRepository->getAll();
+
+    $this->assertEmpty($talks);
+  }
+
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installConfig(['filter']);
+
+    $this->talkRepository = $this->container->get(TalkRepository::class);
+  }
+
+}