Specs for nested predicates & self axis.

spec/oga/xpath/evaluator/axes/self_spec.rb

@@ -3,7 +3,7 @@ require 'spec_helper'
 describe Oga::XPath::Evaluator do
   context 'self axis' do
     before do
-      @document  = parse('<a><b>foo</b><b>bar</b></a>')
+      @document  = parse('<a><b>foo</b><b>bar<c>test</c></b></a>')
       @evaluator = described_class.new(@document)
     end
 
@@ -50,5 +50,29 @@ describe Oga::XPath::Evaluator do
         @set[0].should == @document.children[0].children[0]
       end
     end
+
+    context 'using self inside a path inside a predicate' do
+      before do
+        @set = @evaluator.evaluate('a/b[c/. = "test"]')
+      end
+
+      it_behaves_like :node_set, :length => 1
+
+      example 'return the second <b> node' do
+        @set[0].should == @document.children[0].children[1]
+      end
+    end
+
+    context 'using self inside a nested predicate' do
+      before do
+        @set = @evaluator.evaluate('a/b[c[. = "test"]]')
+      end
+
+      it_behaves_like :node_set, :length => 1
+
+      example 'return the second <b> node' do
+        @set[0].should == @document.children[0].children[1]
+      end
+    end
   end
 end