add unit tests for DOM parser
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Ondřej Synáček
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const { expect } = require('chai')
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const parseUsingDOM = require('../../lib/services/dom-parser')
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const MockLogger = require('../../mocks/logger.mock')
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describe(parseUsingDOM, () => {
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let logger
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beforeEach(() => {
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logger = new MockLogger()
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})
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describe('results', () => {
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it('should return page title', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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</html>
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`
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const { title } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(title).to.equal('Test')
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})
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describe('time', () => {
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it('should return start time', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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<div class="test_eventNode2"><div class="test_timeNode" title="2020/3/2 at 13:30"></div></div>
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</div>
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</body>
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</html>
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`
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const { start } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(start).to.deep.equal([ 2020, 3, 2, 13, 30 ])
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})
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it('should return current time if no time data is found', () => {
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const now = new Date('2020-01-01 12:00:00')
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const spy = jest
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.spyOn(global, 'Date')
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.mockImplementation(() => now)
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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</div>
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</body>
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</html>
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`
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const { start } = parseUsingDOM(html, 'abc.xyz', { logger })
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spy.mockRestore()
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expect(start).to.deep.equal([ 2020, 1, 1, 12, 0 ])
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})
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it('should return duration based on current time if ' +
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'no time data is found', () => {
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const now = new Date('2020-01-01 12:00:00')
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const spy = jest
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.spyOn(global, 'Date')
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.mockImplementation(() => now)
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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</div>
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</body>
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</html>
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`
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const { duration } = parseUsingDOM(html, 'abc.xyz', { logger })
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spy.mockRestore()
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expect(duration).to.deep.equal({ minutes: 0 })
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})
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it('should return duration based on start time', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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<div class="test_eventNode2"><div class="test_timeNode" title="2020/3/2 at 13:30–15:30"></div></div>
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</div>
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</body>
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</html>
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`
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const { duration } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(duration).to.deep.equal({ minutes: 120 })
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})
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})
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it('should return passed in url', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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</html>
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`
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const { url } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(url).to.equal('abc.xyz')
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})
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describe('location', () => {
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it('should return approximated location and area', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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<div class="test_eventNode2"><div class="test_timeNode"></div><div class="test_locationNode"><table><tr><td><span></span><span>123 Main St.\nAcmeTown</span><span>Main area</span></td></tr></table></div></div>
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</div>
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</body>
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</html>
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`
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const { location } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(location).to.equal('123 Main St. AcmeTown, Main area')
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})
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it('should return only approximated location', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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<div class="test_eventNode2"><div class="test_timeNode"></div><div class="test_locationNode"><table><tr><td><span></span><span>123 Main St.\nAcmeTown</span></td></tr></table></div></div>
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</div>
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</body>
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</html>
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`
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const { location } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(location).to.equal('123 Main St. AcmeTown')
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})
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it('should return only approximated area', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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<div class="test_eventNode2"><div class="test_timeNode"></div><div class="test_locationNode"><table><tr><td><span></span><span></span><span>Some area</span></td></tr></table></div></div>
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</div>
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</body>
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</html>
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`
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const { location } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(location).to.equal('Some area')
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})
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it('should NOT return location or area', () => {
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const html = `
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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<div class="test_eventNode2"><div></div><div></div>
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</div>
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</body>
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</html>
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`
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const { location } = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(location).to.equal('')
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})
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})
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})
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describe('logging', () => {
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it('should log parsing', (callback) => {
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logger.on('test:log', () => {
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callback()
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})
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parseUsingDOM('', '', { logger })
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})
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it('should log with message', (callback) => {
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logger.on('test:log', ({ message }) => {
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expect(message).to.equal('Using fallback DOM parser')
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callback()
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})
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parseUsingDOM('', '', { logger })
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})
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it('should log with log level', (callback) => {
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logger.on('test:log', ({ level }) => {
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expect(level).to.equal('info')
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callback()
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})
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parseUsingDOM('', '', { logger })
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})
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it('should log with service description', (callback) => {
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logger.on('test:log', ({ service }) => {
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expect(service).to.equal('parser')
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callback()
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})
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parseUsingDOM('', '', { logger })
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})
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})
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describe('null results', () => {
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it('should return null if no title is present in page', () => {
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const html = `
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<html>
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<head>
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<title></title>
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</head>
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</html>
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`
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const eventData = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(eventData).to.be.null
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})
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it('should NOT return start time without title', () => {
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const html = `
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<html>
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<head>
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<title></title>
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</head>
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<body>
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<div id="event_summary">
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<div class="test_eventNode1"></div>
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<div class="test_eventNode2"><div class="test_timeNode" title="2020/3/2 at 13:30"></div></div>
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</div>
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</body>
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</html>
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`
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const eventData = parseUsingDOM(html, 'abc.xyz', { logger })
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expect(eventData).to.be.null
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})
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})
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})
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