Move the test building script into the Cakefile.

.gitignore

@@ -1 +1 @@
-test/*_spec.coffee
+test/*_spec.js

Cakefile

@@ -1,5 +1,6 @@
 fs           = require 'fs'
 path         = require 'path'
+{exec}       = require 'child_process'
 CoffeeScript = require 'coffee-script'
 
 option '-o', '--output [DIR]', 'directory for compiled code'
@@ -11,3 +12,52 @@ task 'build:js', 'Builds Milk into ./pages (or --output)', (options) ->
   fs.readFile path.join(__dirname, 'milk.coffee'), 'utf8', (err, data) ->
     throw err if err
     fs.writeFile path.join(out, 'milk.js'), CoffeeScript.compile(data)
+
+task 'spec:node', 'Creates compliance tests for the Mustache spec', ->
+  # Convert the YAML files to Javascript.
+  # Requires the YAML and JSON libraries.
+  ruby =  'ruby -rubygems -e "require \'yaml\'" -e "require \'json\'"'
+  ruby += " -e 'YAML::add_builtin_type(\"code\") do"
+  ruby += "   |_,v| v[\"js\"].tap do |x|"
+  ruby += "     def x.to_json(_)"
+  ruby += "       \"function() { return \#{self}; }\""
+  ruby += "     end"
+  ruby += "   end"
+  ruby += " end'"
+  ruby += " -e 'print YAML.load_file(ARGV[0]).to_json()'"
+
+  dir   = path.join(__dirname, 'ext', 'spec', 'specs')
+  files = fs.readdirSync dir
+  for file in files
+    do (file) ->
+      exec "#{ruby} -- #{path.join(dir, file)}", (err, json, _) ->
+        throw err if err
+
+        test = """
+               vows  = require('vows');
+               equal = require('assert').equal;
+               Milk  = require('milk');
+               suite = vows.describe('Mustache Specification - #{file}');
+
+               tests  = #{json}['tests'];
+
+               var batch = {};
+               for (var i = 0; i < tests.length; i++) {
+                 var test = tests[i];
+
+                 var context = {};
+                 context['topic']   = #{topic};
+                 context[test.desc] = function(r) { equal(r, test.expected) };
+
+                 batch[test.name] = context
+               }
+
+               suite.addBatch(batch);
+               suite.export(module);
+               """
+        testFile = file.replace(/^~/, '').replace(/\.yml$/, '_spec.js')
+        fs.writeFile path.join(__dirname, 'test', testFile), test
+
+topic = ->
+  try Milk.render(test.template, test.data, test.partials || {})
+  catch e then "ERROR: " + e