Implement a few tests

@@ -88,36 +88,28 @@
     };
 
     View.prototype.build = function() {
-      var attribute, bindingRegExp, keypath, model, node, path, pipes, type, _i, _len, _ref, _results;
+      var attribute, bindingRegExp, elements, keypath, model, node, path, pipes, type, _i, _j, _len, _len1, _ref;
       this.bindings = [];
       bindingRegExp = this.bindingRegExp();
-      _ref = this.el.getElementsByTagName('*');
-      _results = [];
-      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
-        node = _ref[_i];
-        _results.push((function() {
-          var _j, _len1, _ref1, _results1;
-          _ref1 = node.attributes;
-          _results1 = [];
-          for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) {
-            attribute = _ref1[_j];
-            if (bindingRegExp.test(attribute.name)) {
-              type = attribute.name.replace(bindingRegExp, '');
-              pipes = attribute.value.split('|').map(function(pipe) {
-                return pipe.trim();
-              });
-              path = pipes.shift().split('.');
-              model = this.models[path.shift()];
-              keypath = path.join('.');
-              _results1.push(this.bindings.push(new Rivets.Binding(node, type, model, keypath, pipes)));
-            } else {
-              _results1.push(void 0);
-            }
+      elements = [this.el];
+      elements.concat(Array.prototype.slice.call(this.el.getElementsByTagName('*')));
+      for (_i = 0, _len = elements.length; _i < _len; _i++) {
+        node = elements[_i];
+        _ref = node.attributes;
+        for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) {
+          attribute = _ref[_j];
+          if (bindingRegExp.test(attribute.name)) {
+            type = attribute.name.replace(bindingRegExp, '');
+            pipes = attribute.value.split('|').map(function(pipe) {
+              return pipe.trim();
+            });
+            path = pipes.shift().split('.');
+            model = this.models[path.shift()];
+            keypath = path.join('.');
+            this.bindings.push(new Rivets.Binding(node, type, model, keypath, pipes));
           }
-          return _results1;
-        }).call(this));
+        }
       }
-      return _results;
     };
 
     View.prototype.bind = function() {

+beforeEach(function() {
+  this.addMatchers({
+    toHaveTheTextContent: function(expected) {
+      var el = this.actual;
+      actual = el.textContent || el.innerText;
+      this.message = function() {
+        return "Expected '" + actual + "' to be '" + expected + "'";
+      }
+      return actual === expected;
+    }
+  });
+});

@@ -4,11 +4,32 @@ function Data(attributes) {
 }
 
 Data.prototype.on = function(key, callback) {
-  this.change[key][callback] = true;
+  if(this.hasCallback(key, callback))
+    return;
+  var ref = this.change[key] || (this.change[key] = []);
+  this.change[key].push(callback);
+}
+
+Data.prototype.hasCallback = function(key, callback) {
+  return indexOf(this.change[key], callback) !== -1;
+}
+
+indexOf = function(array, value) {
+  array || (array = [])
+  if(array.indexOf)
+    return array.indexOf(value);
+
+  for(i in array || {}) {
+    if(array[i] === value)
+      return i;
+  }
+  return -1;
 }
 
 Data.prototype.off = function(key, callback) {
-  delete this.change[key][callback];
+  var index = indexOf(this.change[key], callback);
+  if(index !== -1)
+    this.change[key].splice(index, 1);
 }
 
 Data.prototype.set = function(attributes) {
@@ -23,15 +44,17 @@ Data.prototype.set = function(attributes) {
 }
 
 Data.prototype.get = function(key) {
-  this.attributes[key];
+  return this.attributes[key];
 }
 
 Data.prototype.alertCallbacks = function(key) {
   if(!this.change[key])
     return;
 
-  for(callback in this.change[key])
-    callback(this.get(key));
+  var key, callbacks;
+  for(i in this.change[key]) {
+    this.change[key][i](this.get(key));
+  }
 }
 
 window.Data = Data;

-rivets.configure({
-  adapter: {
-    subscribe: function(obj, keypath, callback) {
-      obj.on(keypath, callback);
-    },
-    read: function(obj, keypath) {
-      obj.get(keypath);
-    },
-    publish: function(obj, keypath, value) {
-      attributes = {};
-      attributes[keypath] = value;
-      obj.set(attributes);
-   }
-  }
-});
 
 
-describe('Rivets: ', function() {
-  var data;
+describe('Rivets', function() {
+  var data, bindData, el;
 
   beforeEach(function() {
-    data = new Data();
+    data = new Data({foo: 'bar'});
+    bindData = {data: data};
+    el = document.createElement('div');
+
+    rivets.configure({
+      preloadData: true,
+      adapter: {
+        subscribe: function(obj, keypath, callback) {
+          obj.on(keypath, callback);
+        },
+        read: function(obj, keypath) {
+          return obj.get(keypath);
+        },
+        publish: function(obj, keypath, value) {
+          attributes = {};
+          attributes[keypath] = value;
+          obj.set(attributes);
+        }
+      }
+    });
+  });
+
+  describe('Adapter', function() {
+    it('should read the initial value', function() {
+      spyOn(data, 'get');
+      el.setAttribute('data-text', 'data.foo');
+      rivets.bind(el, bindData);
+      expect(data.get).toHaveBeenCalledWith('foo');
+    });
+
+    it('should read the initial value unless preloadData is false', function() {
+      rivets.configure({preloadData: false});
+      spyOn(data, 'get');
+      el.setAttribute('data-value', 'data.foo');
+      rivets.bind(el, bindData);
+      expect(data.get).not.toHaveBeenCalled();
+    });
+
+    it('should subscribe to updates', function() {
+      spyOn(data, 'on');
+      el.setAttribute('data-value', 'data.foo');
+      rivets.bind(el, bindData);
+      expect(data.on).toHaveBeenCalled();
+    });
   });
 
-  describe('Stuff', function() {
-    it('should work', function() {
-      expect(data.get('foo')).toBe(undefined);
-      expect(data.get('bar')).toBe('not undefined');
+  describe('Binds', function() {
+    describe('Text', function() {
+      it('should set the text content of the element', function() {
+        el.setAttribute('data-text', 'data.foo');
+        rivets.bind(el, bindData);
+        expect(el.textContent || el.innerText).toBe(data.get('foo'));
+      });
+
+      it('should correctly handle HTML in the content', function() {
+        el.setAttribute('data-text', 'data.foo');
+        value = '<b>Fail</b>';
+        data.set({foo: value});
+        rivets.bind(el, bindData);
+        expect(el.textContent || el.innerText).toBe(value);
+      });
+    });
+
+    describe('HTML', function() {
+      it('should set the html content of the element', function() {
+        el.setAttribute('data-html', 'data.foo');
+        rivets.bind(el, bindData);
+        expect(el).toHaveTheTextContent(data.get('foo'));
+      });
+
+      it('should correctly handle HTML in the content', function() {
+        el.setAttribute('data-html', 'data.foo');
+        value = '<b>Fail</b>';
+        data.set({foo: value});
+        rivets.bind(el, bindData);
+        expect(el.innerHTML).toBe(value);
+      });
+    });
+
+    describe('Updates', function() {
+      it('should change the value', function() {
+        el.setAttribute('data-text', 'data.foo');
+        rivets.bind(el, bindData);
+        data.set({foo: 'some new value'});
+        expect(el).toHaveTheTextContent(data.get('foo'));
+      });
     });
   });
 });

@@ -11,6 +11,7 @@
 
   <script type="text/javascript" src="build/rivets.js"></script>
 
+  <script type="text/javascript" src="spec/matchers.js"></script>
   <script type="text/javascript" src="spec/mock.data.js"></script>
   <script type="text/javascript" src="spec/rivets.js"></script>