hunk.code_window:       })
         sourceStream.pipe(destinationStream)
       })
     })
     .then(() => {
       if (verify) {
  
hunk.labels: keep keep keep keep add keep
hunk.after_edit:     if (sourceMetadata.size == null) {
         // This is needed for compressed sources for which we don't know the uncompressed size:
         // After writing the image, we know the size.
         sourceMetadata.size = lastPosition
       }
  
hunk.file_path: lib/gui/modules/child-writer.js
hunk.type: add
file: /*
   * Copyright 2017 resin.io
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  'use strict'
  
  const m = require('mochainon')
  const path = require('path')
  const DATA_PATH = path.join(__dirname, 'data')
  const mime = require('../../lib/sdk/image-stream/mime')
  
  describe('ImageStream: MIME', function () {
    describe('.getMimeTypeFromFileName()', function () {
      it('should resolve application/x-bzip2 for a bz2 archive', function () {
        const file = path.join(DATA_PATH, 'bz2', 'etcher-test.img.bz2')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/x-bzip2')
        })
      })
  
      it('should resolve application/x-xz for a xz archive', function () {
        const file = path.join(DATA_PATH, 'xz', 'etcher-test.img.xz')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/x-xz')
        })
      })
  
      it('should resolve application/gzip for a gz archive', function () {
        const file = path.join(DATA_PATH, 'gz', 'etcher-test.img.gz')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/gzip')
        })
      })
  
      it('should resolve application/zip for a zip archive', function () {
        const file = path.join(DATA_PATH, 'zip', 'zip-directory-etcher-only.zip')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/zip')
        })
      })
  
      it('should resolve application/octet-stream for an uncompressed image', function () {
        const file = path.join(DATA_PATH, 'images', 'etcher-test.img')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/octet-stream')
        })
      })
  
      it('should resolve application/x-iso9660-image for an uncompressed iso', function () {
        const file = path.join(DATA_PATH, 'images', 'etcher-test.iso')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/x-iso9660-image')
        })
      })
  
      it('should resolve application/x-apple-diskimage for a compressed Apple disk image', function () {
        const file = path.join(DATA_PATH, 'dmg', 'etcher-test-zlib.dmg')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/x-apple-diskimage')
        })
      })
  
      it('should resolve application/x-apple-diskimage for an uncompressed Apple disk image', function () {
        const file = path.join(DATA_PATH, 'dmg', 'etcher-test-raw.dmg')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/x-apple-diskimage')
        })
      })
  
      it('should resolve application/octet-stream for an unrecognized file type', function () {
        const file = path.join(DATA_PATH, 'unrecognized', 'random.rpi-sdcard')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/octet-stream')
        })
      })
  
      it('should resolve the correct MIME type given an invalid extension', function () {
        const file = path.join(DATA_PATH, 'unrecognized', 'xz-with-invalid-extension.foo')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/x-xz')
        })
      })
  
      it('should resolve the correct MIME type given no extension', function () {
        const file = path.join(DATA_PATH, 'unrecognized', 'xz-without-extension')
        return mime.getMimeTypeFromFileName(file).then((type) => {
          m.chai.expect(type).to.equal('application/x-xz')
        })
      })
    })
  })
  