JezK
Edit File: test_xpath_visitor.rb
require "helper" module Nokogiri module CSS class TestXPathVisitor < Nokogiri::TestCase def setup super @parser = Nokogiri::CSS::Parser.new end def test_not_simple_selector assert_xpath('//ol/*[not(self::li)]', @parser.parse('ol > *:not(li)')) end def test_not_last_child assert_xpath('//ol/*[not(position() = last())]', @parser.parse('ol > *:not(:last-child)')) end def test_function_calls_allow_at_params assert_xpath("//a[foo(., @href)]", @parser.parse('a:foo(@href)')) assert_xpath("//a[foo(., @a, b)]", @parser.parse('a:foo(@a, b)')) assert_xpath("//a[foo(., a, 10)]", @parser.parse('a:foo(a, 10)')) end def test_namespace_conversion assert_xpath("//aaron:a", @parser.parse('aaron|a')) assert_xpath("//a", @parser.parse('|a')) end def test_unknown_psuedo_classes_get_pushed_down assert_xpath("//a[aaron(.)]", @parser.parse('a:aaron')) end def test_unknown_functions_get_dot_plus_args assert_xpath("//a[aaron(.)]", @parser.parse('a:aaron()')) assert_xpath("//a[aaron(., 12)]", @parser.parse('a:aaron(12)')) assert_xpath("//a[aaron(., 12, 1)]", @parser.parse('a:aaron(12, 1)')) end def test_class_selectors assert_xpath "//*[contains(concat(' ', @class, ' '), ' red ')]", @parser.parse(".red") end def test_pipe assert_xpath "//a[@id = 'Boing' or starts-with(@id, concat('Boing', '-'))]", @parser.parse("a[id|='Boing']") end def test_custom_functions visitor = Class.new(XPathVisitor) do attr_accessor :awesome def visit_function_aaron node @awesome = true 'aaron() = 1' end end.new ast = @parser.parse('a:aaron()').first assert_equal 'a[aaron() = 1]', visitor.accept(ast) assert visitor.awesome end def test_custom_psuedo_classes visitor = Class.new(XPathVisitor) do attr_accessor :awesome def visit_pseudo_class_aaron node @awesome = true 'aaron() = 1' end end.new ast = @parser.parse('a:aaron').first assert_equal 'a[aaron() = 1]', visitor.accept(ast) assert visitor.awesome end def assert_xpath expecteds, asts expecteds = [expecteds].flatten expecteds.zip(asts).each do |expected, actual| assert_equal expected, actual.to_xpath end end end end end