##// END OF EJS Templates
Fix race condition in javascript kernel message processing...
Fix race condition in javascript kernel message processing Because the binary messages are now deserialized using the asynchronous FileReader API, we need to have some way to force the messages to still be processed in the order they are received. This patch implements a simple processing queue using promises.

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widget_button.js
48 lines | 1.8 KiB | application/javascript | JavascriptLexer
// Test widget button class
casper.notebook_test(function () {
var button_index = this.append_cell(
'from IPython.html import widgets\n' +
'from IPython.display import display, clear_output\n' +
'button = widgets.Button(description="Title")\n' +
'display(button)\n' +
'print("Success")\n' +
'def handle_click(sender):\n' +
' display("Clicked")\n' +
'button.on_click(handle_click)');
this.execute_cell_then(button_index, function(index){
this.test.assertEquals(this.get_output_cell(index).text, 'Success\n',
'Create button cell executed with correct output.');
});
// Wait for the widgets to actually display.
var widget_button_selector = '.widget-area .widget-subarea button';
this.wait_for_element(button_index, widget_button_selector);
// Continue with the tests.
this.then(function() {
this.test.assert(this.cell_element_exists(button_index,
'.widget-area .widget-subarea'),
'Widget subarea exists.');
this.test.assert(this.cell_element_exists(button_index,
widget_button_selector),
'Widget button exists.');
this.test.assert(this.cell_element_function(button_index,
widget_button_selector, 'html')=='Title',
'Set button description.');
this.cell_element_function(button_index,
widget_button_selector, 'click');
});
this.wait_for_output(button_index, 1);
this.then(function () {
var warning_text = this.get_output_cell(button_index, 1).text;
this.test.assertNotEquals(warning_text.indexOf('Warning'), -1,
'Importing widgets show a warning');
this.test.assertEquals(this.get_output_cell(button_index, 2).data['text/plain'], "'Clicked'",
'Button click event fires.');
});
});