hyparquet/test/read.test.js

import fs from 'fs'
import { describe, expect, it } from 'vitest'
import { parquetRead } from '../src/hyparquet.js'
import { toJson } from '../src/toJson.js'
import { fileToAsyncBuffer, fileToJson } from './helpers.js'

describe('parquetMetadataAsync', () => {
  it('should parse metadata from all test files', async () => {
    const files = fs.readdirSync('test/files')
    for (const file of files) {
      if (!file.endsWith('.parquet')) continue
      const asyncBuffer = fileToAsyncBuffer(`test/files/${file}`)
      await parquetRead({
        file: asyncBuffer,
        onComplete: (rows) => {
          const base = file.replace('.parquet', '')
          const expected = fileToJson(`test/files/${base}.json`)
          expect(toJson(rows)).toEqual(expected)
        },
      })
    }
  })
})