Add additional @data tests

spec/builtins.js

@@ -84,6 +84,16 @@ describe('builtin helpers', function() {
       equal(result, "0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!", "The @index variable is used");
     });
 
+    it("each with nested @index", function() {
+      var string = "{{#each goodbyes}}{{@index}}. {{text}}! {{#each ../goodbyes}}{{@index}} {{/each}}After {{@index}} {{/each}}{{@index}}cruel {{world}}!";
+      var hash   = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};
+
+      var template = CompilerContext.compile(string);
+      var result = template(hash);
+
+      equal(result, "0. goodbye! 0 1 2 After 0 1. Goodbye! 0 1 2 After 1 2. GOODBYE! 0 1 2 After 2 cruel world!", "The @index variable is used");
+    });
+
     it("each with function argument", function() {
       var string = "{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!";
       var hash   = {goodbyes: function () { return [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}];}, world: "world"};

spec/data.js

@@ -112,18 +112,19 @@ describe('data', function() {
   });
 
   it("data is inherited downstream", function() {
-    var template = CompilerContext.compile("{{#let foo=bar.baz}}{{@foo}}{{/let}}", { data: true });
+    var template = CompilerContext.compile("{{#let foo=1 bar=2}}{{#let foo=bar.baz}}{{@bar}}{{@foo}}{{/let}}{{@foo}}{{/let}}", { data: true });
     var helpers = {
       let: function(options) {
+        var frame = Handlebars.createFrame(options.data);
         for (var prop in options.hash) {
-          options.data[prop] = options.hash[prop];
+          frame[prop] = options.hash[prop];
         }
-        return options.fn(this);
+        return options.fn(this, {data: frame});
       }
     };
 
     var result = template({ bar: { baz: "hello world" } }, { helpers: helpers, data: {} });
-    equals("hello world", result, "data variables are inherited downstream");
+    equals("2hello world1", result, "data variables are inherited downstream");
   });
 
   it("passing in data to a compiled function that expects data - works with helpers in partials", function() {