Add basic widget.js tests

IPython/html/tests/casperjs/test_cases/widgets.js

@@ -0,0 +1,97
+//
+// Test the widget framework.
+//
+casper.notebook_test(function () {
+    //this.test.begin("widget tests (notebook)", 2, function(test) {
+
+
+    // Utility function that allows us to easily execute a cell of python code
+    // and wait for the results.
+    var that = this;
+    var run_python_code = function(code){
+        var index = that.evaluate(function (code) {
+            var index = IPython.notebook.ncells();
+            var cell = IPython.notebook.insert_cell_at_index('code', index);
+            cell.set_text(code);
+            cell.execute();
+            return index;
+        }, code);
+
+        that.wait_for_output(index);
+        return index;
+    };
+
+    // Test widget dependencies ////////////////////////////////////////////////
+    run_python_code('from IPython.html import widgets\n' + 
+                    'from IPython.display import display, clear_output\n' + 
+                    'widgets.init_widget_js()');
+    this.wait(500); // Wait for require.js async callbacks to load dependencies.
+    
+    this.then(function () {
+    
+        // Check if the WidgetManager class is defined.
+        this.test.assert(this.evaluate(function() {
+            return IPython.WidgetManager != undefined; 
+        }), 'WidgetManager class is defined');
+    
+        // Check if the widget manager has been instanciated.
+        this.test.assert(this.evaluate(function() {
+            return IPython.notebook.widget_manager != undefined; 
+        }), 'Notebook widget manager instanciated');
+    });
+
+
+    // Check widget mapping ////////////////////////////////////////////////////
+    var cell_index = run_python_code('names = [name for name in dir(widgets)' + 
+        ' if name.endswith("Widget") and name!= "Widget"]\n' +
+        'for name in names:\n' +
+        '    print(name)\n');
+
+    this.then(function () {
+        // Get the widget names that are registered with the widget manager.  Assume
+        // a 1 to 1 mapping of model and widgets names (model names just have 'model'
+        // suffixed).
+        var javascript_names = this.evaluate(function () {
+            names = [];
+            for (var name in IPython.notebook.widget_manager.widget_model_types) {
+                names.push(name.replace('Model',''));
+            }
+            return names;
+        });
+
+        // Get the widget names registered in python.
+        var python_names = this.get_output_cell(cell_index).text.split('\n');
+
+        // Make sure the two lists have the same items.
+        for (var i in javascript_names) {
+            var javascript_name = javascript_names[i];
+            var found = false;
+            for (var j in python_names) {
+                var python_name = python_names[j];
+                if (python_name==javascript_name) {
+                    found = true;
+                    break;
+                }
+            }
+            this.test.assert(found, javascript_name + ' exists in python');
+        }
+        for (var i in python_names) {
+            var python_name = python_names[i];
+            if (python_name.length > 0) {
+                var found = false;
+                for (var j in javascript_names) {
+                    var javascript_name = javascript_names[j];
+                    if (python_name==javascript_name) {
+                        found = true;
+                        break;
+                    }
+                }
+                this.test.assert(found, python_name + ' exists in javascript');
+            }
+        }
+    });
+
+
+    //}); // end of test.begin
+});
+