2 files changed, 171 insertions, 15 deletions
diff --git a/src/components/topic/topic.svelte b/src/components/topic/topic.svelte
index 181b429..0b73d44 100644
--- a/src/components/topic/topic.svelte
+++ b/src/components/topic/topic.svelte
@@ -13,28 +13,28 @@
 	<h1 class="p-name">{topic.title}</h1>
 	<aside class="topic-meta" title={$_('topic.metadata_title')}>
 		{#if topic.forum}
-			<span class="topic-location"
-				>{$_('topic.category_location')}
-				<a href="/f/{topic.forum.id}" class="p-category"
-					>{topic.forum.glyph} {$_(topic.forum.label)}</a
-				>.</span
-			>
+			<span class="topic-location">
+        {$_('topic.category_location')}
+				<a href="/f/{topic.forum.id}" class="p-category">
+          {topic.forum.glyph} {$_(topic.forum.label)}
+        </a>.
+      </span>
 		{/if}
-		<span class="topic-ttl"
-			><a class="u-url u-uid" title={$_('topic.permalink_title')} href="/t/{topic.id}"
-				>({$_('topic.remaining_time', {
+		<span class="topic-ttl">
+      <a class="u-url u-uid" title={$_('topic.permalink_title')} href="/t/{topic.id}">
+        ({$_('topic.remaining_time', {
 					values: { remaining: $_(remaining.label, { values: { count: remaining.count } }) }
-				})})</a
-			>.</span
-		>
+        })})
+      </a>.
+    </span>
 	</aside>
 	{#if topic.tags.length > 0}
 		<aside class="topic-tags" title={$_('topic.tags_title')}>
 			{$_('topic.tags_location')}
 			{#each topic.tags as tag}
-				<a href="/g/{tag.id}" class="p-category"
-					>{tag.id}<span class="tag-weight">({tag.weight})</span></a
-				>{' '}
+				<a href="/g/{tag.id}" class="p-category">
+          {tag.id}<span class="tag-weight">({tag.weight})</span>
+        </a>{' '}
 			{/each}
 		</aside>
 	{/if}
diff --git a/src/components/topic/topic.test.js b/src/components/topic/topic.test.js
new file mode 100644
index 0000000..83eeba3
--- /dev/null
+++ b/src/components/topic/topic.test.js
@@ -0,0 +1,156 @@
+import '@testing-library/jest-dom/extend-expect';
+
+import { addMessages } from 'svelte-i18n';
+
+import { cleanup, render } from '@testing-library/svelte';
+import '$/config/i18n';
+
+import Topic from './topic.svelte';
+
+const internals = {
+  results: null,
+  basicTopic: {
+    id: 'b1a4f8d1-4d16-4872-b391-fda6a0e9012d',
+    title: 'I sure am a test topic',
+    ttl: 160 * 1000,
+    updated_at: Date.now(),
+    forum: {
+      id: 'diversion',
+      glyph: '⏃',
+      label: 'test_forums.diversion'
+    },
+    tags: [
+      {
+        id: 'fish',
+        weight: 40
+      },
+      {
+        id: 'statue',
+        weight: 5
+      }
+    ],
+    posts: [
+      {
+        id: '413a74db-9473-4bac-8698-da9452c05854',
+        text: 'This is the first post',
+        created_at: Date.UTC(1999, 7, 1, 8, 8, 2, 111).valueOf(),
+        author: {
+          handle: 'past_user',
+          id: 'c76d3e51-76ac-4e84-a1b2-2eee9abd68b3'
+        }
+      },
+      {
+        id: '821ff177-5250-406f-9431-1a8097b35430',
+        text: 'This response came later',
+        created_at: Date.UTC(2038, 1, 2, 3, 4, 6, 789).valueOf(),
+        author: {
+          handle: 'future_user',
+          id: 'cb9307cb-77e9-4c55-bbe7-dbbf88737358'
+        }
+      }
+    ]
+  },
+  topicWithoutForum: {
+    id: '9715e9ee-0d63-4b50-b613-826ef2791728',
+    title: 'This topic, no forums',
+    ttl: 160 * 1000,
+    updated_at: Date.now(),
+    tags: [
+      {
+        id: 'cauliflower',
+        weight: 33
+      }
+    ],
+    posts: []
+  }
+};
+
+describe('Topic component', () => {
+
+  beforeAll(() => {
+
+    addMessages('en', {
+      'test_forums.diversion': 'Diversion'
+    });
+  });
+
+  beforeEach(() => {
+
+    internals.results = render(Topic, { props: {
+      topic: internals.basicTopic
+    } });
+  });
+
+  test('Should show the topic title', () => {
+
+    expect(internals.results.getByText('I sure am a test topic'))
+      .toBeVisible();
+  });
+  test('Should display remaining time in readable format', () => {
+
+    expect(internals.results.getByText(/2 minutes remaining/))
+      .toBeVisible();
+  });
+  test('Remaining time should be a permalink to the topic', () => {
+
+    expect(internals.results.getByText(/2 minutes remaining/).closest('a'))
+      .toHaveAttribute('href', '/t/b1a4f8d1-4d16-4872-b391-fda6a0e9012d');
+  });
+
+  test('Should show text for all posts', () => {
+
+    expect(internals.results.getByText('This is the first post'))
+      .toBeVisible();
+    expect(internals.results.getByText('This response came later'))
+      .toBeVisible();
+  });
+
+  describe('Forum link', () => {
+
+    test('Should show forum if the post has one', () => {
+
+      expect(internals.results.getByText(/^\s*⏃\s*Diversion\s*$/))
+        .toBeVisible();
+    });
+
+    test('Forum text should be a permalink to the forum', () => {
+
+      expect(internals.results.getByText(/^\s*⏃\s*Diversion\s*$/).closest('a'))
+        .toHaveAttribute('href', '/f/diversion');
+    });
+
+    test('Should not show forum if the post doesn\'t have one', () => {
+
+      cleanup();
+      internals.results = render(Topic, { props: {
+        topic: internals.topicWithoutForum
+      } });
+
+      expect(internals.results.queryByText(/^\s*⏃\s*Diversion\s*$/))
+        .toBe(null);
+    });
+  });
+
+  describe('Tag listing', () => {
+
+    test('Should show topic tags', () => {
+
+      expect(internals.results.getByText('fish'))
+        .toBeVisible();
+      expect(internals.results.getByText('fish'))
+        .toHaveTextContent('fish(40)');
+      expect(internals.results.getByText('statue'))
+        .toBeVisible();
+      expect(internals.results.getByText('statue'))
+        .toHaveTextContent('statue(5)');
+    });
+
+    test('Tag text should be a permalink to the tag', () => {
+
+      expect(internals.results.getByText('fish').closest('a'))
+        .toHaveAttribute('href', '/g/fish');
+      expect(internals.results.getByText('statue').closest('a'))
+        .toHaveAttribute('href', '/g/statue');
+    });
+  });
+});