insomnia/app/network/__tests__/multipart.test.js

import fs from 'fs';
import {globalBeforeEach} from '../../__jest__/before-each';
import {buildMultipart, DEFAULT_BOUNDARY} from '../multipart';
import path from 'path';

describe('buildMultipart()', () => {
  beforeEach(globalBeforeEach);

  it('builds a simple request', async () => {
    const {filePath, boundary, contentLength} = await buildMultipart([
      {name: 'foo', value: 'bar'},
      {name: 'multi-line', value: 'Hello\nWorld!'}
    ]);

    expect(boundary).toBe(DEFAULT_BOUNDARY);
    expect(contentLength).toBe(189);
    expect(fs.readFileSync(filePath, 'utf8')).toBe([
      `--${boundary}`,
      'Content-Disposition: form-data; name="foo"',
      '',
      'bar',
      `--${boundary}`,
      'Content-Disposition: form-data; name="multi-line"',
      '',
      'Hello\nWorld!',
      `--${boundary}--`,
      ''
    ].join('\r\n'));
  });

  it('builds with file', async () => {
    const fileName = path.resolve(path.join(__dirname, './testfile.txt'));
    const {filePath, boundary, contentLength} = await buildMultipart([
      {name: 'foo', value: 'bar'},
      {name: 'file', type: 'file', fileName: fileName},
      {name: 'baz', value: 'qux'}
    ]);

    expect(boundary).toBe(DEFAULT_BOUNDARY);
    expect(contentLength).toBe(322);
    expect(fs.readFileSync(filePath, 'utf8')).toBe([
      `--${boundary}`,
      'Content-Disposition: form-data; name="foo"',
      '',
      'bar',
      `--${boundary}`,
      'Content-Disposition: form-data; name="file"; filename="testfile.txt"',
      'Content-Type: text/plain',
      '',
      'Hello World!\n\nHow are you?',
      `--${boundary}`,
      'Content-Disposition: form-data; name="baz"',
      '',
      'qux',
      `--${boundary}--`,
      ''
    ].join('\r\n'));
  });

  it('skips entries with no name or value', async () => {
    const {filePath, boundary, contentLength} = await buildMultipart([
      {value: 'bar'},
      {name: 'foo'},
      {name: '', value: ''},
      {name: '', type: 'file', fileName: ''}
    ]);

    expect(boundary).toBe(DEFAULT_BOUNDARY);
    expect(contentLength).toBe(167);
    expect(fs.readFileSync(filePath, 'utf8')).toBe([
      `--${boundary}`,
      'Content-Disposition: form-data; name=""',
      '',
      'bar',
      `--${boundary}`,
      'Content-Disposition: form-data; name="foo"',
      '',
      '',
      `--${boundary}--`,
      ''
    ].join('\r\n'));
  });
});