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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(count(following-sibling::*) = 0)]',
@parser.parse('ol > *:not(:last-child)'))
end
def test_not_only_child
assert_xpath('//ol/*[not(count(preceding-sibling::*) = 0 and count(following-sibling::*) = 0)]',
@parser.parse('ol > *:not(:only-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_namespaced_attribute_conversion
assert_xpath("//a[@flavorjones:href]", @parser.parse('a[flavorjones|href]'))
assert_xpath("//a[@href]", @parser.parse('a[|href]'))
assert_xpath("//*[@flavorjones:href]", @parser.parse('*[flavorjones|href]'))
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(' ', normalize-space(@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
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