From ac6c0d806e6ef6ad53670fdd82fb635e5baf3371 Mon Sep 17 00:00:00 2001
From: Yorick Peterse <yorickpeterse@gmail.com>
Date: Wed, 8 Jul 2015 01:45:26 +0200
Subject: [PATCH] Updated XPath variables spec to use the compiler

---
 spec/oga/xpath/compiler/variables_spec.rb | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/spec/oga/xpath/compiler/variables_spec.rb b/spec/oga/xpath/compiler/variables_spec.rb
index 0528ccf..e3bafbe 100644
--- a/spec/oga/xpath/compiler/variables_spec.rb
+++ b/spec/oga/xpath/compiler/variables_spec.rb
@@ -1,22 +1,25 @@
 require 'spec_helper'
 
 describe Oga::XPath::Compiler do
-  describe 'variable bindings' do
+  describe 'using variable bindings' do
     before do
       @document = parse('<a></a>')
+      @compiler = described_class.new
     end
 
-    it 'evaluates a variable' do
-      evaluator = described_class.new(@document, 'number' => 10.0)
+    it 'returns the value of a variable' do
+      ast   = parse_xpath('$number')
+      block = @compiler.compile(ast)
 
-      evaluator.evaluate('$number').should == 10.0
+      block.call(@document, 'number' => 10.0).should == 10.0
     end
 
     it 'raises RuntimeError when evaluating an unbound variable' do
-      evaluator = described_class.new(@document)
-      block     = lambda { evaluator.evaluate('$number') }
+      ast   = parse_xpath('$number')
+      block = @compiler.compile(ast)
 
-      block.should raise_error 'Undefined XPath variable: number'
+      proc { block.call(@document) }.should
+        raise_error 'Undefined XPath variable: number'
     end
   end
 end