require 'spec_helper'
module Pageflow
module Chart
describe Scraper do
describe '#html' do
it 'returns contents of parsed html' do
html = <<-HTML
contents
HTML
scraper = Scraper.new(html)
expect(scraper.html).to include('contents')
end
it 'filters blacklisted selectors' do
html = <<-HTML
HTML
scraper = Scraper.new(html, selector_blacklist: ['body .noscript'])
expect(HtmlFragment.new(scraper.html)).to have_tag('body #good')
expect(HtmlFragment.new(scraper.html)).not_to have_tag('body #bad')
end
describe 'stylesheets in head' do
it 'combines link tags in head' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(HtmlFragment.new(scraper.html)).not_to have_tag('head link[href="/some.css"]')
expect(HtmlFragment.new(scraper.html)).to have_tag('head link[href="all.css"]')
end
end
describe 'scripts in head' do
it 'combines script tags in head' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(HtmlFragment.new(scraper.html)).not_to have_tag('head script[src="/some.js"]')
expect(HtmlFragment.new(scraper.html)).to have_tag('head script[src="all.js"]')
end
it 'inserts script tag at position of first script src tag to keep position ' \
'between inline scripts' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
fragment = HtmlFragment.new(scraper.html)
expect(fragment).to have_tags_in_order('head script#setup',
'head script[src="all.js"]',
'head script#usage')
end
end
describe 'scripts in body' do
it 'combines script tags in body' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(HtmlFragment.new(scraper.html)).not_to have_tag('body script[src="/some.js"]')
expect(HtmlFragment.new(scraper.html)).to have_tag('body script[src="all_body.js"]')
end
it 'inserts script tag at position of first script src tag to keep position ' \
'between inline scripts' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
fragment = HtmlFragment.new(scraper.html)
expect(fragment).to have_tags_in_order('body script#setup',
'body script[src="all_body.js"]',
'body script#usage')
end
it 'filters blacklisted inline scripts' do
html = <<-HTML
HTML
scraper = Scraper.new(html, inline_script_blacklist: [/alert/])
expect(HtmlFragment.new(scraper.html)).to have_tag('body script#good')
expect(HtmlFragment.new(scraper.html)).not_to have_tag('body script#bad')
end
end
end
describe '#javascript_urls' do
describe 'scripts in head' do
it 'returns list of urls to javascript files' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.javascript_urls_in_head).to eq(['/some.js', '/other.js'])
end
it 'filters by blacklist' do
html = <<-HTML
HTML
scraper = Scraper.new(html, head_script_blacklist: [/piwik/])
expect(scraper.javascript_urls_in_head).to eq(['/some.js'])
end
it 'ignores inline scripts in head' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.javascript_urls_in_head).to eq([])
end
it 'ignores scripts in body' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.javascript_urls_in_head).to eq([])
end
end
describe 'scripts in body' do
it 'ignores scripts in head' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.javascript_urls_in_body).to eq([])
end
it 'returns list of urls to javascript files' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.javascript_urls_in_body).to eq(['/some.js', '/other.js'])
end
it 'filters by blacklist' do
html = <<-HTML
HTML
scraper = Scraper.new(html, body_script_blacklist: [/piwik/])
expect(scraper.javascript_urls_in_body).to eq(['/some.js'])
end
it 'ignores inline scripts in body' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.javascript_urls_in_body).to eq([])
end
end
end
describe '#stylesheet_urls' do
it 'returns list of urls to stylesheet files' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.stylesheet_urls).to eq(['/some.css', '/other.css'])
end
it 'ignores non css links' do
html = <<-HTML
HTML
scraper = Scraper.new(html)
expect(scraper.stylesheet_urls).to eq([])
end
end
end
end
end