1import assert from "node:assert/strict";
2import test from "node:test";
3 
4import { formatArticleMarkdown } from "./markdown.js";
5 
6test("formatArticleMarkdown renders MARKDOWN entities from atomic blocks", () => {
7  const article = {
8    title: "Atomic Markdown Example",
9    content_state: {
10      blocks: [
11        {
12          type: "unstyled",
13          text: "Before the snippet.",
14          entityRanges: [],
15        },
16        {
17          type: "atomic",
18          text: " ",
19          entityRanges: [{ key: 0, offset: 0, length: 1 }],
20        },
21        {
22          type: "unstyled",
23          text: "After the snippet.",
24          entityRanges: [],
25        },
26      ],
27      entityMap: {
28        "0": {
29          key: "5",
30          value: {
31            type: "MARKDOWN",
32            mutability: "Mutable",
33            data: {
34              markdown: "```python\nprint('hello from x article')\n```\n",
35            },
36          },
37        },
38      },
39    },
40  };
41 
42  const { markdown } = formatArticleMarkdown(article);
43 
44  assert.ok(markdown.includes("Before the snippet."));
45  assert.ok(markdown.includes("```python\nprint('hello from x article')\n```"));
46  assert.ok(markdown.includes("After the snippet."));
47  assert.strictEqual(markdown, `# Atomic Markdown Example
48 
49Before the snippet.
50 
51\`\`\`python
52print('hello from x article')
53\`\`\`
54 
55After the snippet.`);
56});
57 
58test("formatArticleMarkdown renders article video media as poster plus video link", () => {
59  const posterUrl = "https://pbs.twimg.com/amplify_video_thumb/123/img/poster.jpg";
60  const videoUrl = "https://video.twimg.com/amplify_video/123/vid/avc1/720x720/demo.mp4?tag=21";
61  const article = {
62    title: "Video Example",
63    content_state: {
64      blocks: [
65        {
66          type: "unstyled",
67          text: "Intro text.",
68          entityRanges: [],
69        },
70        {
71          type: "atomic",
72          text: " ",
73          entityRanges: [{ key: 0, offset: 0, length: 1 }],
74        },
75      ],
76      entityMap: {
77        "0": {
78          key: "0",
79          value: {
80            type: "MEDIA",
81            mutability: "Immutable",
82            data: {
83              caption: "Demo reel",
84              mediaItems: [{ mediaId: "vid-1" }],
85            },
86          },
87        },
88      },
89    },
90    media_entities: [
91      {
92        media_id: "vid-1",
93        media_info: {
94          __typename: "ApiVideo",
95          preview_image: {
96            original_img_url: posterUrl,
97          },
98          variants: [
99            {
100              content_type: "video/mp4",
101              bit_rate: 256000,
102              url: videoUrl,
103            },
104          ],
105        },
106      },
107    ],
108  };
109 
110  const { markdown } = formatArticleMarkdown(article);
111 
112  assert.ok(markdown.includes("Intro text."));
113  assert.ok(markdown.includes(`![Demo reel](${posterUrl})`));
114  assert.ok(markdown.includes(`[video](${videoUrl})`));
115  assert.ok(!markdown.includes(`![Demo reel](${videoUrl})`));
116  assert.ok(!markdown.includes("## Media"));
117});
118 
119test("formatArticleMarkdown renders unused article videos in trailing media section", () => {
120  const posterUrl = "https://pbs.twimg.com/amplify_video_thumb/456/img/poster.jpg";
121  const videoUrl = "https://video.twimg.com/amplify_video/456/vid/avc1/1080x1080/demo.mp4?tag=21";
122  const article = {
123    title: "Trailing Media Example",
124    plain_text: "Body text.",
125    media_entities: [
126      {
127        media_id: "vid-2",
128        media_info: {
129          __typename: "ApiVideo",
130          preview_image: {
131            original_img_url: posterUrl,
132          },
133          variants: [
134            {
135              content_type: "video/mp4",
136              bit_rate: 832000,
137              url: videoUrl,
138            },
139          ],
140        },
141      },
142    ],
143  };
144 
145  const { markdown, coverUrl } = formatArticleMarkdown(article);
146 
147  assert.strictEqual(coverUrl, null);
148  assert.ok(markdown.includes("## Media"));
149  assert.ok(markdown.includes(`![video](${posterUrl})`));
150  assert.ok(markdown.includes(`[video](${videoUrl})`));
151});
152 
153test("formatArticleMarkdown keeps coverUrl as preview image for video cover media", () => {
154  const posterUrl = "https://pbs.twimg.com/amplify_video_thumb/789/img/poster.jpg";
155  const videoUrl = "https://video.twimg.com/amplify_video/789/vid/avc1/720x720/demo.mp4?tag=21";
156  const article = {
157    title: "Video Cover Example",
158    plain_text: "Body text.",
159    cover_media: {
160      media_info: {
161        __typename: "ApiVideo",
162        preview_image: {
163          original_img_url: posterUrl,
164        },
165        variants: [
166          {
167            content_type: "video/mp4",
168            bit_rate: 1280000,
169            url: videoUrl,
170          },
171        ],
172      },
173    },
174  };
175 
176  const { coverUrl } = formatArticleMarkdown(article);
177 
178  assert.strictEqual(coverUrl, posterUrl);
179});
180