공개 마크다운 블록 파서 분리

tests/markdown-block-parser.test.js

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+import assert from 'node:assert/strict'
+import test from 'node:test'
+import {
+  BLANK_PARAGRAPH_MARKER,
+  isMarkdownBlockStart,
+  parseMarkdownBlocks
+} from '../lib/markdown-block-parser.js'
+
+test('기본 마크다운 행을 렌더링 블록으로 변환한다', () => {
+  const blocks = parseMarkdownBlocks([
+    '# 제목',
+    '',
+    '본문  ',
+    BLANK_PARAGRAPH_MARKER,
+    '---'
+  ].join('\n'))
+
+  assert.deepEqual(blocks.map((block) => block.type), ['heading', 'spacer', 'paragraph', 'spacer', 'divider'])
+  assert.equal(blocks[0].text, '제목')
+  assert.equal(blocks[0].level, 1)
+  assert.equal(blocks[2].text, '본문')
+  assert.equal(blocks[3].meta.legacy, true)
+})
+
+test('fenced 블록을 타입별 메타와 원본 줄 범위로 변환한다', () => {
+  const blocks = parseMarkdownBlocks([
+    ':::gallery',
+    '![](/uploads/a.webp "A"){size=235}',
+    '![](/uploads/b.webp)',
+    ':::',
+    ':::callout bg=red emoji=none',
+    '주의',
+    ':::',
+    ':::toggle open 자세히',
+    '내용',
+    ':::'
+  ].join('\n'))
+
+  assert.deepEqual(blocks.map((block) => block.type), ['gallery', 'callout', 'toggle'])
+  assert.equal(blocks[0].images.length, 2)
+  assert.equal(blocks[0].images[0].pixelWidth, 235)
+  assert.deepEqual(
+    {
+      startLine: blocks[0].meta.startLine,
+      endLine: blocks[0].meta.endLine
+    },
+    { startLine: 0, endLine: 3 }
+  )
+  assert.equal(blocks[1].calloutBackground, 'red')
+  assert.equal(blocks[1].calloutEmojiEnabled, false)
+  assert.equal(blocks[2].title, '자세히')
+  assert.equal(blocks[2].defaultOpen, true)
+})
+
+test('인용·목록·코드·표 블록을 변환한다', () => {
+  const blocks = parseMarkdownBlocks([
+    '> [!bg=blue]',
+    '> 인용',
+    '- 하나',
+    '- 둘',
+    '1. 첫째',
+    '3. 셋째',
+    '```js line-numbers',
+    'const value = 1',
+    '```',
+    '| A | B |',
+    '| --- | ---: |',
+    '| a | b |'
+  ].join('\n'))
+
+  assert.deepEqual(blocks.map((block) => block.type), ['quote', 'list', 'list', 'code', 'table'])
+  assert.equal(blocks[0].quoteBackground, 'blue')
+  assert.equal(blocks[0].text, '인용')
+  assert.deepEqual(blocks[1].text, ['하나', '둘'])
+  assert.equal(blocks[2].ordered, true)
+  assert.deepEqual(blocks[2].listNumbers, [1, 3])
+  assert.equal(blocks[3].codeLanguage, 'js')
+  assert.equal(blocks[3].codeShowLineNumbers, true)
+  assert.deepEqual(blocks[4].meta.alignments, ['left', 'right'])
+})
+
+test('블록 시작 줄을 판별한다', () => {
+  assert.equal(isMarkdownBlockStart(':::gallery'), true)
+  assert.equal(isMarkdownBlockStart('```html'), true)
+  assert.equal(isMarkdownBlockStart('![](/a.webp)'), true)
+  assert.equal(isMarkdownBlockStart('일반 문단'), false)
+})