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Revamp descendant-or-self compiler specs

This commit is contained in:
Yorick Peterse 2015-08-27 10:34:25 +02:00
parent 8f341b40d6
commit d5aad9c1c9
2 changed files with 103 additions and 80 deletions
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16
lib/oga/xpath/compiler.rb
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@ -204,15 +204,17 @@ module Oga
# @param [Oga::Ruby::Node] input # @param [Oga::Ruby::Node] input
# @return [Oga::Ruby::Node] # @return [Oga::Ruby::Node]
def on_axis_descendant_or_self(ast, input) def on_axis_descendant_or_self(ast, input)
node = node_literal node = unique_literal(:descendant)
process(ast, input) document_or_node(input).if_true do
.if_true { yield input } process(ast, input)
.followed_by do .if_true { yield input }
input.each_node.add_block(node) do .followed_by do
process(ast, node).if_true { yield node } input.each_node.add_block(node) do
process(ast, node).if_true { yield node }
end
end end
end end
end end
# @param [AST::Node] ast # @param [AST::Node] ast

167
spec/oga/xpath/compiler/axes/descendant_or_self_spec.rb
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@ -1,90 +1,111 @@
require 'spec_helper' require 'spec_helper'
describe Oga::XPath::Compiler do describe Oga::XPath::Compiler do
describe 'descendant-or-self axis' do before do
before do @document = parse('<a foo="bar"><b><b><c class="x"></c></b></b></a>')
@document = parse('<a><b><b><c class="x"></c></b></b></a>')
@a1 = @document.children[0] @a1 = @document.children[0]
@b1 = @a1.children[0] @b1 = @a1.children[0]
@b2 = @b1.children[0] @b2 = @b1.children[0]
@c1 = @b2.children[0] @c1 = @b2.children[0]
end end
describe 'using the full syntax' do describe 'relative to a document' do
it 'returns a NodeSet containing a direct descendant' do describe 'descendant-or-self::b' do
evaluate_xpath(@document, 'descendant-or-self::b') it 'returns a NodeSet' do
.should == node_set(@b1, @b2) evaluate_xpath(@document).should == node_set(@b1, @b2)
end
it 'returns a NodeSet containing a nested descendant' do
evaluate_xpath(@document, 'descendant-or-self::c').should == node_set(@c1)
end
it 'returns a NodeSet using multiple descendant expressions' do
evaluate_xpath(@document, 'descendant-or-self::a/descendant-or-self::*')
.should == node_set(@a1, @b1, @b2, @c1)
end
it 'returns a NodeSet containing a descendant with an attribute' do
evaluate_xpath(@document, 'descendant-or-self::c[@class="x"]')
.should == node_set(@c1)
end
it 'returns a NodeSet containing a descendant relative to a node' do
evaluate_xpath(@document, 'a/descendant-or-self::b')
.should == node_set(@b1, @b2)
end
it 'returns a NodeSet containing the context node' do
evaluate_xpath(@document, 'descendant-or-self::a')
.should == node_set(@a1)
end
it 'returns a NodeSet containing the context node relative to a node' do
evaluate_xpath(@document, 'a/b/b/c/descendant-or-self::c')
.should == node_set(@c1)
end
it 'returns a NodeSet containing the first descendant' do
evaluate_xpath(@document, 'descendant-or-self::b[1]')
.should == node_set(@b1)
end
it 'returns an empty NodeSet for a non existing descendant' do
evaluate_xpath(@document, 'descendant-or-self::foobar')
.should == node_set
end
describe 'relative to a node' do
it 'returns a NodeSet containing a node and its descendants' do
evaluate_xpath(@b1, 'descendant-or-self::b')
.should == node_set(@b1, @b2)
end
it 'returns a NodeSet containing only the node itself' do
evaluate_xpath(@c1, 'descendant-or-self::c').should == node_set(@c1)
end
end end
end end
describe 'using the shorthand syntax' do describe 'descendant-or-self::c' do
it 'returns a NodeSet containing all <b> nodes' do it 'returns a NodeSet' do
evaluate_xpath(@document, '//b').should == node_set(@b1, @b2) evaluate_xpath(@document).should == node_set(@c1)
end end
end
it 'returns a NodeSet containing all the descendants of <a>' do describe 'descendant-or-self::a/descendant-or-self::*' do
evaluate_xpath(@document, '//a//*').should == node_set(@b1, @b2, @c1) it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@a1, @b1, @b2, @c1)
end end
end
it 'returns a NodeSet containing all <b> nodes in an <a> node' do describe 'descendant-or-self::c[@class="x"]' do
evaluate_xpath(@document, '//a/b').should == node_set(@b1) it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@c1)
end end
end
describe 'relative to a node' do describe 'a/descendant-or-self::b' do
it 'returns a NodeSet containing all <b> nodes' do it 'returns a NodeSet' do
evaluate_xpath(@c1, '//b').should == node_set(@b1, @b2) evaluate_xpath(@document).should == node_set(@b1, @b2)
end end
end
describe 'descendant-or-self::a' do
it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@a1)
end
end
describe 'a/b/b/c/descendant-or-self::c' do
it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@c1)
end
end
describe 'descendant-or-self::b[1]' do
it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@b1)
end
end
describe 'descendant-or-self::foobar' do
it 'returns an empty NodeSet' do
evaluate_xpath(@document).should == node_set
end
end
describe '//b' do
it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@b1, @b2)
end
end
describe '//a//*' do
it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@b1, @b2, @c1)
end
end
describe '//a/b' do
it 'returns a NodeSet' do
evaluate_xpath(@document).should == node_set(@b1)
end
end
describe 'a/@foo/descendant-or-self::*' do
it 'returns an empty NodeSet' do
evaluate_xpath(@document).should == node_set
end
end
end
describe 'relative to an element' do
describe 'descendant-or-self::b' do
it 'returns a NodeSet' do
evaluate_xpath(@b1).should == node_set(@b1, @b2)
end
end
describe 'descendant-or-self::c' do
it 'returns a NodeSet' do
evaluate_xpath(@c1).should == node_set(@c1)
end
end
describe '//b' do
it 'returns a NodeSet' do
evaluate_xpath(@c1).should == node_set(@b1, @b2)
end end
end end
end end