JezK
Edit File: test_nthiness.rb
require "helper" module Nokogiri module CSS class TestNthiness < Nokogiri::TestCase def setup super doc = <<EOF <html> <table> <tr><td>row1 </td></tr> <tr><td>row2 </td></tr> <tr><td>row3 </td></tr> <tr><td>row4 </td></tr> <tr><td>row5 </td></tr> <tr><td>row6 </td></tr> <tr><td>row7 </td></tr> <tr><td>row8 </td></tr> <tr><td>row9 </td></tr> <tr><td>row10 </td></tr> <tr><td>row11 </td></tr> <tr><td>row12 </td></tr> <tr><td>row13 </td></tr> <tr><td>row14 </td></tr> </table> <div> <b>bold1 </b> <i>italic1 </i> <b>bold2 </b> <i>italic2 </i> <p>para1 </p> <b>bold3 </b> </div> <div> <p>para2 </p> <p>para3 </p> </div> <div> <p>para4 </p> </div> <p class='empty'></p> <p class='not-empty'><b></b></p> </html> EOF @parser = Nokogiri.HTML doc end def test_even assert_result_rows [2,4,6,8,10,12,14], @parser.search("table/tr:nth(even)") end def test_odd assert_result_rows [1,3,5,7,9,11,13], @parser.search("table/tr:nth(odd)") end def test_2n assert_equal @parser.search("table/tr:nth(even)").inner_text, @parser.search("table/tr:nth(2n)").inner_text end def test_2np1 assert_equal @parser.search("table/tr:nth(odd)").inner_text, @parser.search("table/tr:nth(2n+1)").inner_text end def test_4np3 assert_result_rows [3,7,11], @parser.search("table/tr:nth(4n+3)") end def test_3np4 assert_result_rows [4,7,10,13], @parser.search("table/tr:nth(3n+4)") end def test_mnp3 assert_result_rows [1,2,3], @parser.search("table/tr:nth(-n+3)") end def test_np3 assert_result_rows [3,4,5,6,7,8,9,10,11,12,13,14], @parser.search("table/tr:nth(n+3)") end def test_first assert_result_rows [1], @parser.search("table/tr:first") assert_result_rows [1], @parser.search("table/tr:first()") end def test_last assert_result_rows [14], @parser.search("table/tr:last") assert_result_rows [14], @parser.search("table/tr:last()") end def test_first_child assert_result_rows [1], @parser.search("div/b:first-child"), "bold" assert_result_rows [1], @parser.search("table/tr:first-child") end def test_last_child assert_result_rows [3], @parser.search("div/b:last-child"), "bold" assert_result_rows [14], @parser.search("table/tr:last-child") end def test_first_of_type assert_result_rows [1], @parser.search("table/tr:first-of-type") assert_result_rows [1], @parser.search("div/b:first-of-type"), "bold" end def test_last_of_type assert_result_rows [14], @parser.search("table/tr:last-of-type") assert_result_rows [3], @parser.search("div/b:last-of-type"), "bold" end def test_only_of_type assert_result_rows [1,4], @parser.search("div/p:only-of-type"), "para" end def test_only_child assert_result_rows [4], @parser.search("div/p:only-child"), "para" end def test_empty result = @parser.search("p:empty") assert_equal 1, result.size, "unexpected number of rows returned: '#{result.inner_text}'" assert_equal 'empty', result.first['class'] end def test_parent result = @parser.search("p:parent") assert_equal 5, result.size 0.upto(3) do |j| assert_equal "para#{j+1} ", result[j].inner_text end assert_equal "not-empty", result[4]['class'] end def test_siblings doc = <<-EOF <html><body><div> <p id="1">p1 </p> <p id="2">p2 </p> <p id="3">p3 </p> <p id="4">p4 </p> <p id="5">p5 </p> EOF parser = Nokogiri.HTML doc assert_equal 2, parser.search("#3 ~ p").size assert_equal "p4 p5 ", parser.search("#3 ~ p").inner_text assert_equal 0, parser.search("#5 ~ p").size assert_equal 1, parser.search("#3 + p").size assert_equal "p4 ", parser.search("#3 + p").inner_text assert_equal 0, parser.search("#5 + p").size end def assert_result_rows intarray, result, word="row" assert_equal intarray.size, result.size, "unexpected number of rows returned: '#{result.inner_text}'" assert_equal intarray.map{|j| "#{word}#{j}"}.join(' '), result.inner_text.strip, result.inner_text end end end end