Added StringWidget tests

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

@@ -1,823 +1,885 b''
 // Test the widget framework.
 casper.notebook_test(function () {
     var index;
     
     // Test widget 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');
     });
 
     index = this.append_cell(
         'from IPython.html import widgets\n' + 
         'from IPython.display import display, clear_output\n' +
         'print("Success")');
     this.execute_cell_then(index);
 
     this.wait(500); // Wait for require.js async callbacks to load dependencies.
 
     this.then(function () {
         // Check if the widget manager has been instanciated.
         this.test.assert(this.evaluate(function() {
             return IPython.widget_manager != undefined; 
         }), 'Notebook widget manager instanciated');
     });
 
     // Check widget mapping ////////////////////////////////////////////////////
     index = this.append_cell(
         'names = [name for name in dir(widgets)' + 
         ' if name.endswith("Widget") and name!= "Widget"]\n' +
         'for name in names:\n' +
         '    print(name)\n');
     this.execute_cell_then(index, function(index){
 
         // 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.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(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');
             }
         }
     });
 
 
     // Test bool widget ////////////////////////////////////////////////////////
     var bool_index = this.append_cell(
         'bool_widget = widgets.BoolWidget(description="Title", value=True)\n' +
         'display(bool_widget)\n'+
         'display(bool_widget, view_name="ToggleButtonView")\n' +
         'print("Success")');
     this.execute_cell_then(bool_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create bool widget cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea .widget-hbox-single input'),
             'Checkbox exists.');
 
         this.test.assert(this.cell_element_function(index, 
             '.widget-area .widget-subarea .widget-hbox-single input', 'prop', ['checked']),
             'Checkbox is checked.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea .widget-hbox-single .widget-hlabel'),
             'Checkbox label exists.');
 
         this.test.assert(this.cell_element_function(index, 
             '.widget-area .widget-subarea .widget-hbox-single .widget-hlabel', 'html')=="Title",
             'Checkbox labeled correctly.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea div button'),
             'Toggle button exists.');
 
         this.test.assert(this.cell_element_function(index, 
             '.widget-area .widget-subarea div button', 'html')=="Title",
             'Toggle button labeled correctly.');
 
         this.test.assert(this.cell_element_function(index, 
             '.widget-area .widget-subarea div button', 'hasClass', ['active']),
             'Toggle button is toggled.');
 
     });
 
     index = this.append_cell(
         'bool_widget.value = False\n' +
         'print("Success")');
     this.execute_cell_then(index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Change bool widget value cell executed with correct output.');
 
         this.test.assert(! this.cell_element_function(bool_index, 
             '.widget-area .widget-subarea .widget-hbox-single input', 'prop', ['checked']),
             'Checkbox is not checked. (1)');
 
         this.test.assert(! this.cell_element_function(bool_index, 
             '.widget-area .widget-subarea div button', 'hasClass', ['active']),
             'Toggle button is not toggled. (1)');
 
         // Try toggling the bool by clicking on the toggle button.
         this.cell_element_function(bool_index, '.widget-area .widget-subarea div button', 'click');
 
         this.test.assert(this.cell_element_function(bool_index, 
             '.widget-area .widget-subarea .widget-hbox-single input', 'prop', ['checked']),
             'Checkbox is checked. (2)');
 
         this.test.assert(this.cell_element_function(bool_index, 
             '.widget-area .widget-subarea div button', 'hasClass', ['active']),
             'Toggle button is toggled. (2)');
  
         // Try toggling the bool by clicking on the checkbox.
         this.cell_element_function(bool_index, '.widget-area .widget-subarea .widget-hbox-single input', 'click');
 
         this.test.assert(! this.cell_element_function(bool_index, 
             '.widget-area .widget-subarea .widget-hbox-single input', 'prop', ['checked']),
             'Checkbox is not checked. (3)');
 
         this.test.assert(! this.cell_element_function(bool_index, 
             '.widget-area .widget-subarea div button', 'hasClass', ['active']),
             'Toggle button is not toggled. (3)');
 
     });
 
     // Test button widget //////////////////////////////////////////////////////
 
     var button_index = this.append_cell(
         'button = widgets.ButtonWidget(description="Title")\n' +
         'display(button)\n'+
         'print("Success")\n' +
         'def handle_click(sender):\n' +
         '    print("Clicked")\n' +
         'button.on_click(handle_click)');
     this.execute_cell_then(button_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create button cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea button'),
             'Widget button exists.');
 
         this.test.assert(this.cell_element_function(index, 
             '.widget-area .widget-subarea button', 'html')=='Title',
             'Set button description.');
 
         this.cell_element_function(index, 
             '.widget-area .widget-subarea button', 'click');
     });
 
     this.wait(500); // Wait for click to execute in kernel and write output
 
     this.then(function () {
         this.test.assert(this.get_output_cell(button_index, 1).text == 'Clicked\n', 
             'Button click event fires.');
     });
 
     // Close the button widget asynchronisly.
     index = this.append_cell('button.close()\n');
     this.execute_cell(index);
 
     this.wait(500); // Wait for the button to close.
 
     this.then(function(){
         this.test.assert(! this.cell_element_exists(button_index, 
             '.widget-area .widget-subarea button'),
             'Widget button doesn\'t exists.');
     });
 
     // Test container widget ///////////////////////////////////////////////////
     var container_index = this.append_cell(
         'container = widgets.ContainerWidget()\n' +
         'button = widgets.ButtonWidget(parent=container)\n'+
         'display(container)\n'+
         'container.add_class("my-test-class")\n'+
         'print("Success")\n');
     this.execute_cell_then(container_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create container cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea .widget-container'),
             'Widget container exists.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea .my-test-class'),
             'add_class works.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea .my-test-class button'),
             'Container parent/child relationship works.');
     });
 
     index = this.append_cell(
         'container.set_css("display", "none")\n'+
         'print("Success")\n');
     this.execute_cell_then(index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Set container class CSS cell executed with correct output.');
 
         this.test.assert(this.cell_element_function(container_index, 
             '.widget-area .widget-subarea .my-test-class', 'css', ['display'])=='none',
             'set_css works.');
     });
 
     index = this.append_cell(
         'container.remove_class("my-test-class")\n'+
         'print("Success")\n');
     this.execute_cell_then(index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Remove container class cell executed with correct output.');
 
         this.test.assert(! this.cell_element_exists(container_index, 
             '.widget-area .widget-subarea .my-test-class'),
             'remove_class works.');
     });
 
     index = this.append_cell(
         'display(button)\n'+
         'print("Success")\n');
     this.execute_cell_then(index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Display container child executed with correct output.');
 
         this.test.assert(! this.cell_element_exists(index, 
             '.widget-area .widget-subarea .widget-container'),
             'Parent container not displayed.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea button'),
             'Child displayed.');
     });
 
     // Test float range widget /////////////////////////////////////////////////
     var slider_query = '.widget-area .widget-subarea .widget-hbox-single .slider';
     var float_text_query = '.widget-area .widget-subarea .widget-hbox-single .widget-numeric-text';
 
     var floatrange_index = this.append_cell(
         'floatrange = widgets.FloatRangeWidget()\n' +
         'display(floatrange)\n' + 
         'display(floatrange, view_name="FloatTextView")\n' + 
         'print("Success")\n');
     this.execute_cell_then(floatrange_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create float range cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, slider_query),
             'Widget slider exists.');
 
         this.test.assert(this.cell_element_exists(index, float_text_query),
             'Widget float textbox exists.');
     });
 
     index = this.append_cell(
         'floatrange.max = 50.0\n' +
         'floatrange.min = -50.0\n' +
         'floatrange.value = 25.0\n' +
         'print("Success")\n');
     this.execute_cell_then(index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Float range properties cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(floatrange_index, slider_query), 
             'Widget slider exists.');
 
         this.test.assert(this.cell_element_function(floatrange_index, slider_query, 
             'slider', ['value']) == 25.0,
             'Slider set to Python value.');
 
         this.test.assert(this.cell_element_function(floatrange_index, float_text_query,
             'val') == 25.0, 'Float textbox set to Python value.');
 
         // Clear the float textbox value and then set it to 1 by emulating
         // keyboard presses.
         this.cell_element_function(floatrange_index, float_text_query, 'val', ['']);
         this.sendKeys(float_text_query, '1');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(floatrange.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '1.0\n', 
             'Float textbox set float range value');
 
         // Clear the float textbox value and then set it to 120 by emulating
         // keyboard presses.
         this.cell_element_function(floatrange_index, float_text_query, 'val', ['']);
         this.sendKeys(float_text_query, '120');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(floatrange.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '50.0\n', 
             'Float textbox value bound');
 
         // Clear the float textbox value and then set it to 'hello world' by 
         // emulating keyboard presses.  'hello world' should get filtered...
         this.cell_element_function(floatrange_index, float_text_query, 'val', ['']);
         this.sendKeys(float_text_query, 'hello world');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(floatrange.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '50.0\n', 
             'Invalid float textbox characters ignored');
     });
 
     // Test float widget ///////////////////////////////////////////////////////
     var float_text_query_2 = '.widget-area .widget-subarea .widget-hbox-single .my-second-float-text';
 
     var float_index = this.append_cell(
         'float_widget = widgets.FloatWidget()\n' +
         'display(float_widget)\n' + 
         'float_widget.add_class("my-second-float-text")\n' + 
         'print("Success")\n');
     this.execute_cell_then(float_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create float cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, float_text_query_2),
             'Widget float textbox exists.');
 
         this.cell_element_function(float_index, float_text_query_2, 'val', ['']);
         this.sendKeys(float_text_query_2, '1.05');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(float_widget.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '1.05\n', 
             'Float textbox value set.');
         this.cell_element_function(float_index, float_text_query_2, 'val', ['']);
         this.sendKeys(float_text_query_2, '123456789.0');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(float_widget.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '123456789.0\n', 
             'Long float textbox value set (probably triggers throttling).');
         this.cell_element_function(float_index, float_text_query_2, 'val', ['']);
         this.sendKeys(float_text_query_2, '12hello');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(float_widget.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '12.0\n', 
             'Invald float textbox value caught and filtered.');
     });
 
     // Test image widget ///////////////////////////////////////////////////////
 
     // Get the temporary directory that the test server is running in.
     var cwd = '';
     index = this.append_cell('!echo $(pwd)');
     this.execute_cell_then(index, function(index){
         cwd = this.get_output_cell(index).text.trim();
     });
 
     test_jpg = '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';
     test_results = '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';
 
     var image_index = this.append_cell(
         'import base64\n' + 
         'data = base64.b64decode("' + test_jpg + '")\n' +
         'image = widgets.ImageWidget()\n' +
         'image.image_format = "jpeg"\n' +
         'image.value = data\n' +
         'image.width = "50px"\n' +
         'image.height = "50px"\n' +
         // Set css that will make the image render within the PhantomJS visible
         // window.  If we don't do this, the captured image will be black.
         'image.set_css({"background": "blue", "z-index": "9999", "position": "fixed", "top": "0px", "left": "0px"})\n' + 
         'display(image)\n' + 
         'image.add_class("my-test-image")\n' + 
         'print("Success")\n');
     this.execute_cell_then(image_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create image executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea img'),
             'Image exists.');
 
         // Capture a screenshot of the img element as a base64 string.
         var fs = require('fs');
         capture_filename = cwd + fs.separator + 'captured.jpg';
         this.captureSelector(capture_filename, '.my-test-image');
         var stream = fs.open(capture_filename, 'rb');
         var captured = btoa(stream.read());
         stream.close()
         fs.remove(capture_filename);
 
         // Uncomment line below to output captured image data to a text file.
         // fs.write('./captured.txt', captured, 'w');
 
         this.test.assert(test_results==captured, "Red image data displayed correctly.");
     });
 
     // Test int range widget /////////////////////////////////////////////////
     var int_text_query = '.widget-area .widget-subarea .widget-hbox-single .my-second-num-test-text';
 
     var intrange_index = this.append_cell(
         'intrange = widgets.IntRangeWidget()\n' +
         'display(intrange, view_name="IntTextView")\n' +
         'intrange.add_class("my-second-num-test-text")\n' +  
         'display(intrange)\n' + 
         'print("Success")\n');
     this.execute_cell_then(intrange_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create int range cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, slider_query),
             'Widget slider exists.');
 
         this.test.assert(this.cell_element_exists(index, int_text_query),
             'Widget int textbox exists.');
     });
 
     index = this.append_cell(
         'intrange.max = 50\n' +
         'intrange.min = -50\n' +
         'intrange.value = 25\n' +
         'print("Success")\n');
     this.execute_cell_then(index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Int range properties cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(intrange_index, slider_query), 
             'Widget slider exists.');
 
         this.test.assert(this.cell_element_function(intrange_index, slider_query, 
             'slider', ['value']) == 25,
             'Slider set to Python value.');
 
         this.test.assert(this.cell_element_function(intrange_index, int_text_query,
             'val') == 25, 'Int textbox set to Python value.');
 
         // Clear the int textbox value and then set it to 1 by emulating
         // keyboard presses.
         this.cell_element_function(intrange_index, int_text_query, 'val', ['']);
         this.sendKeys(int_text_query, '1');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(intrange.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '1\n', 
             'Int textbox set int range value');
 
         // Clear the int textbox value and then set it to 120 by emulating
         // keyboard presses.
         this.cell_element_function(intrange_index, int_text_query, 'val', ['']);
         this.sendKeys(int_text_query, '120');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(intrange.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '50\n', 
             'Int textbox value bound');
 
         // Clear the int textbox value and then set it to 'hello world' by 
         // emulating keyboard presses.  'hello world' should get filtered...
         this.cell_element_function(intrange_index, int_text_query, 'val', ['']);
         this.sendKeys(int_text_query, 'hello world');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(intrange.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '50\n', 
             'Invalid int textbox characters ignored');
     });
 
     // Test int widget ///////////////////////////////////////////////////////
     var int_text_query_2 = '.widget-area .widget-subarea .widget-hbox-single .my-second-int-text';
 
     var int_index = this.append_cell(
         'int_widget = widgets.IntWidget()\n' +
         'display(int_widget)\n' + 
         'int_widget.add_class("my-second-int-text")\n' + 
         'print("Success")\n');
     this.execute_cell_then(int_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create int cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, int_text_query_2),
             'Widget int textbox exists.');
 
         this.cell_element_function(int_index, int_text_query_2, 'val', ['']);
         this.sendKeys(int_text_query_2, '1.05');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(int_widget.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '1\n', 
             'Int textbox value set.');
         this.cell_element_function(int_index, int_text_query_2, 'val', ['']);
         this.sendKeys(int_text_query_2, '123456789');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(int_widget.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '123456789\n', 
             'Long int textbox value set (probably triggers throttling).');
         this.cell_element_function(int_index, int_text_query_2, 'val', ['']);
         this.sendKeys(int_text_query_2, '12hello');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(int_widget.value)\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '12\n', 
             'Invald int textbox value caught and filtered.');
     });
 
 
     // Test multicontainer widget ////////////////////////////////////////////
 
     // Test tab view
     var multicontainer1_query = '.widget-area .widget-subarea div div.nav-tabs';
     var multicontainer1_index = this.append_cell(
         'multicontainer = widgets.MulticontainerWidget()\n' +
         'page1 = widgets.StringWidget(parent=multicontainer)\n' +
         'page2 = widgets.StringWidget(parent=multicontainer)\n' +
         'page3 = widgets.StringWidget(parent=multicontainer)\n' +
         'display(multicontainer)\n' +
         'multicontainer.selected_index = 0\n' +
         'print("Success")\n');
     this.execute_cell_then(multicontainer1_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create multicontainer cell executed with correct output. (1)');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, multicontainer1_query),
             'Widget tab list exists.');
 
         this.test.assert(this.cell_element_exists(index, multicontainer1_query),
             'First widget tab list exists.');
 
         // JQuery selector is 1 based
         this.click(multicontainer1_query + ' li:nth-child(2) a')
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell(
         'print(multicontainer.selected_index)\n' +
         'multicontainer.selected_index = 2'); // 0 based
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '1\n', // 0 based
             'selected_index property updated with tab change.');
 
         // JQuery selector is 1 based
         this.test.assert(!this.cell_element_function(multicontainer1_index, multicontainer1_query + ' li:nth-child(1)', 'hasClass', ['active']),
                 "Tab 1 is not selected.")
         this.test.assert(!this.cell_element_function(multicontainer1_index, multicontainer1_query + ' li:nth-child(2)', 'hasClass', ['active']),
                 "Tab 2 is not selected.")
         this.test.assert(this.cell_element_function(multicontainer1_index, multicontainer1_query + ' li:nth-child(3)', 'hasClass', ['active']),
                 "Tab 3 is selected.")
     });
 
     index = this.append_cell('multicontainer.set_title(1, "hello")\nprint("Success")'); // 0 based
     this.execute_cell_then(index, function(index){
         this.test.assert(this.cell_element_function(multicontainer1_index, multicontainer1_query +
             ' li:nth-child(2) a', 'html') == 'hello',
             'Tab page title set (after display).');
     });
 
     // Test accordion view
     var multicontainer2_query = '.widget-area .widget-subarea .accordion';
     var multicontainer2_index = this.append_cell(
         'multicontainer = widgets.MulticontainerWidget()\n' +
         'page1 = widgets.StringWidget(parent=multicontainer)\n' +
         'page2 = widgets.StringWidget(parent=multicontainer)\n' +
         'page3 = widgets.StringWidget(parent=multicontainer)\n' +
         'multicontainer.set_title(2, "good")\n' +
         'display(multicontainer, view_name="AccordionView")\n' +
         'multicontainer.selected_index = 0\n' +
         'print("Success")\n');
     this.execute_cell_then(multicontainer2_index, function(index){
 
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create multicontainer cell executed with correct output. (2)');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, multicontainer2_query),
             'Widget accordion exists.');
 
         this.test.assert(this.cell_element_exists(index, multicontainer2_query + 
             ' .accordion-group:nth-child(1) .accordion-body'),
             'First accordion page exists.');
 
         // JQuery selector is 1 based
         this.test.assert(this.cell_element_function(index, multicontainer2_query + 
             ' .accordion-group:nth-child(3) .accordion-heading .accordion-toggle', 
             'html')=='good', 'Accordion page title set (before display).');
 
         // JQuery selector is 1 based
         this.click(multicontainer2_query + ' .accordion-group:nth-child(2) .accordion-heading .accordion-toggle');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell('print(multicontainer.selected_index)'); // 0 based
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == '1\n', // 0 based
             'selected_index property updated with tab change.');
     });
 
     // Test selection widget /////////////////////////////////////////////////
     var combo_selector = '.widget-area .widget-subarea .widget-hbox-single .btn-group .widget-combo-btn'
     var multibtn_selector = '.widget-area .widget-subarea .widget-hbox-single .btn-group[data-toggle="buttons-radio"]'
     var radio_selector = '.widget-area .widget-subarea .widget-hbox .vbox'
     var list_selector = '.widget-area .widget-subarea .widget-hbox .widget-listbox'
 
     var selection_index;
     var selection_values = 'abcd';
     var check_state = function(context, index, state){
         if (0 <= index && index < selection_values.length) {
             var multibtn_state = context.cell_element_function(selection_index, multibtn_selector + ' .btn:nth-child(' + (index + 1) + ')', 'hasClass', ['active']);
             var radio_state = context.cell_element_function(selection_index, radio_selector + ' .radio:nth-child(' + (index + 1) + ') input', 'prop', ['checked']);
             var list_val = context.cell_element_function(selection_index, list_selector, 'val');
             var combo_val = context.cell_element_function(selection_index, combo_selector, 'html');
             
             var val = selection_values.charAt(index);
             var list_state = (val == list_val);
             var combo_state = (val == combo_val);
 
             return multibtn_state == state &&
                 radio_state == state &&
                 list_state == state &&
                 combo_state == state;
         }
         return true;
     }
 
     var verify_selection = function(context, index){
         for (var i = 0; i < selection_values.length; i++) {
             if (!check_state(context, i, i==index)) {
                 return false;
             }
         }
         return true;
     }
 
     selection_index = this.append_cell(
         'selection = widgets.SelectionWidget(values=["' + selection_values + '"[i] for i in range(4)])\n' +
         'display(selection)\n' +
         'display(selection, view_name="ToggleButtonsView")\n' +
         'display(selection, view_name="RadioButtonsView")\n' +
         'display(selection, view_name="ListBoxView")\n' +
         'print("Success")\n');
     this.execute_cell_then(selection_index, function(index){
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Create selection cell executed with correct output.');
 
         this.test.assert(this.cell_element_exists(index, 
             '.widget-area .widget-subarea'),
             'Widget subarea exists.');
 
         this.test.assert(this.cell_element_exists(index, combo_selector),
              'Widget combobox exists.');
 
         this.test.assert(this.cell_element_exists(index, multibtn_selector),
             'Widget multibutton exists.');
 
         this.test.assert(this.cell_element_exists(index, radio_selector),
             'Widget radio buttons exists.');
 
         this.test.assert(this.cell_element_exists(index, list_selector),
             'Widget list exists.');
 
         // Verify that no items are selected.
         this.test.assert(verify_selection(this, -1), 'No items selected.');
     });
 
     index = this.append_cell(
         'selection.value = "a"\n' +
         'print("Success")\n');
     this.execute_cell_then(index, function(index){
         this.test.assert(this.get_output_cell(index).text == 'Success\n', 
             'Python select item executed with correct output.');
 
         // Verify that the first item is selected.
         this.test.assert(verify_selection(this, 0), 'Python selected');
 
         // Verify that selecting a radio button updates all of the others.
         this.cell_element_function(selection_index, radio_selector + ' .radio:nth-child(2) input', 'click');
         this.test.assert(verify_selection(this, 1), 'Radio button selection updated view states correctly.');
 
         // Verify that selecting a list option updates all of the others.
         this.cell_element_function(selection_index, list_selector + ' option:nth-child(3)', 'click');
         this.test.assert(verify_selection(this, 2), 'List selection updated view states correctly.');
 
         // Verify that selecting a multibutton option updates all of the others.
         this.cell_element_function(selection_index, multibtn_selector + ' .btn:nth-child(4)', 'click');
         this.test.assert(verify_selection(this, 3), 'Multibutton selection updated view states correctly.');
 
         // Verify that selecting a combobox option updates all of the others.
         this.cell_element_function(selection_index, '.widget-area .widget-subarea .widget-hbox-single .btn-group ul.dropdown-menu li:nth-child(3) a', 'click');
         this.test.assert(verify_selection(this, 2), 'Combobox selection updated view states correctly.');
     });
 
     this.wait(500); // Wait for change to execute in kernel
 
     index = this.append_cell(
         'print(selection.value)\n' +
         'selection.values.append("z")\n' +
         'selection.send_state()\n' +
         'selection.value = "z"');
     this.execute_cell_then(index, function(index){
 
         // Verify that selecting a combobox option updates all of the others.
         this.test.assert(verify_selection(this, 4), 'Item added to selection widget.');
     });
 
+    // Test string widget //////////////////////////////////////////////////////
+    var string_index = this.append_cell(
+        'string_widget = widgets.StringWidget()\n' +
+        'display(string_widget)\n'+
+        'display(string_widget, view_name="TextAreaView")\n' +
+        'display(string_widget, view_name="HTMLView")\n' +
+        'display(string_widget, view_name="LatexView")\n' +
+        'string_widget.value = "xyz"\n' +
+        'print("Success")');
+    this.execute_cell_then(string_index, function(index){
+
+        this.test.assert(this.get_output_cell(index).text == 'Success\n', 
+            'Create string widget cell executed with correct output.');
+
+        this.test.assert(this.cell_element_exists(index, 
+            '.widget-area .widget-subarea'),
+            'Widget subarea exists.');
+
+        this.test.assert(this.cell_element_exists(index, 
+            '.widget-area .widget-subarea .widget-hbox-single input[type=text]'),
+            'Textbox exists.');
+
+        this.test.assert(this.cell_element_exists(index, 
+            '.widget-area .widget-subarea .widget-hbox textarea'),
+            'Textarea exists.');
+
+        this.test.assert(this.cell_element_function(index, 
+            '.widget-area .widget-subarea .widget-hbox textarea', 'val')=='xyz',
+            'Python set textarea value.');
+
+        this.test.assert(this.cell_element_function(index, 
+            '.widget-area .widget-subarea .widget-hbox-single input[type=text]', 'val')=='xyz',
+            'Python set textbox value.');
+
+        this.cell_element_function(index, 
+            '.widget-area .widget-subarea .widget-hbox-single input[type=text]', 'val', [''])
+        this.sendKeys('.widget-area .widget-subarea .widget-hbox-single input[type=text]', 'abc');
+
+        this.test.assert(this.cell_element_function(index, 
+            '.widget-area .widget-subarea .widget-hbox textarea', 'val')=='abc',
+            'Textarea updated to textbox contents.');
+
+        this.cell_element_function(index, 
+            '.widget-area .widget-subarea .widget-hbox textarea', 'val', ['']);
+        this.sendKeys('.widget-area .widget-subarea .widget-hbox textarea', '$\\LaTeX{}$');
+
+        this.test.assert(this.cell_element_function(index, 
+            '.widget-area .widget-subarea .widget-hbox-single input[type=text]', 'val')=='$\\LaTeX{}$',
+            'Textbox updated to textarea contents.');
+    });
+
+    this.wait(500); // Wait for change to execute in kernel
+
+    index = this.append_cell('print(string_widget.value)');
+    this.execute_cell_then(index, function(index){
+        this.test.assert(this.get_output_cell(index).text == '$\\LaTeX{}$\n', 
+            'Python updated with correct string widget value.');
+
+        this.test.assert(this.cell_element_exists(string_index, 
+            '.widget-area .widget-subarea div span.MathJax_Preview'),
+            'MathJax parsed the LaTeX successfully.');
+    });
 });