nokogiri-temp.rb

require 'spec_helper'
require 'nokogiri'

describe 'Nokogiri' do
  let(:xml) do
    %(
    <root>
      <schools>
        <school>
          <id>1</id>
          <name>First school</name>
        </school>
        <school>
          <id>2</id>
          <name>Second school</name>
        </school>
      </schools>
      <students>
        <student>
          <name>Alex</name>
          <schoolId>1</schoolId>
        </student>
        <student>
          <name>Mark</name>
          <schoolId>1</schoolId>
        </student>
        <student>
          <name>Alex</name>
          <schoolId>2</schoolId>
        </student>
        <student>
          <name>Olivia</name>
          <schoolId>2</schoolId>
        </student>
      </students>
    </root>
    )
  end
  let(:doc) { Nokogiri::XML(xml) }

  it 'Find student names from school with the name "Second school"' do
    school_id = doc.xpath('//school[name/text()="Second school"]/id').text
    student_names = doc.xpath("//student[schoolId/text()=#{school_id}]/name").map(&:text)
    expect(student_names).to match(%w(Alex Olivia))
  end
end