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79 lines
2.2 KiB
JavaScript
79 lines
2.2 KiB
JavaScript
const childProcess = require('node:child_process')
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const debug = require('debug')
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const mockSpawn = require('mock-spawn')
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const should = require('should/as-function')
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const sinon = require('sinon')
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const exifStream = require('../../../src/components/exiftool/stream')
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describe('exiftool stream', function () {
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beforeEach(() => {
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sinon.stub(childProcess, 'spawn')
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debug.reset()
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})
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afterEach(() => {
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childProcess.spawn.restore()
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})
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it('parses exiftool JSON output into an array', (done) => {
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// setup a mock that returns exiftool-like JSON data
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const errorSpawn = mockSpawn()
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childProcess.spawn.callsFake(errorSpawn)
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errorSpawn.setDefault(function (cb) {
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setTimeout(() => {
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this.stdout.write(`[{
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"SourceFile": "IMG_0001.jpg",
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"MIMEType": "image/jpeg"
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},`)
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}, 10)
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setTimeout(() => {
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this.stdout.write(`{
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"SourceFile": "IMG_0002.jpg",
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"MIMEType": "image/jpeg"
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}]`)
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}, 20)
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setTimeout(() => cb(), 30)
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})
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// check the data returned
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const stream = exifStream.parse('input', ['IMG_0001.jpg', 'IMG_0002.jpg'])
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reduceStream(stream, emittedData => {
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should(emittedData).eql([{
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SourceFile: 'IMG_0001.jpg',
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MIMEType: 'image/jpeg'
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},
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{
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SourceFile: 'IMG_0002.jpg',
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MIMEType: 'image/jpeg'
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}])
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done()
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})
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})
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it('returns an empty array and prints an error if exiftool is not available', (done) => {
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// setup a mock that always fails
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const errorSpawn = mockSpawn()
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childProcess.spawn.callsFake(errorSpawn)
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errorSpawn.setDefault(function (cb) {
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this.emit('error', new Error('spawn ENOENT'))
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setTimeout(() => cb(), 10)
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})
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// check the data returned
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const stream = exifStream.parse('input', ['IMG_0001.jpg'])
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reduceStream(stream, emittedData => {
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should(emittedData).eql([])
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debug.assertContains('installed on your system')
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debug.assertContains('spawn ENOENT')
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done()
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})
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})
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})
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function reduceStream (stream, done) {
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const emittedData = []
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stream.on('data', entry => {
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emittedData.push(entry)
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}).on('end', () => {
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done(emittedData)
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})
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}
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