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88 lines
2.5 KiB
88 lines
2.5 KiB
// Copyright (c) Jupyter Development Team.
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// Distributed under the terms of the Modified BSD License.
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import { NotebookShell, INotebookShell } from '@jupyter-notebook/application';
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import { JupyterFrontEnd } from '@jupyterlab/application';
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import { toArray } from '@lumino/algorithm';
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import { Widget } from '@lumino/widgets';
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describe('Shell', () => {
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let shell: INotebookShell;
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beforeEach(() => {
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shell = new NotebookShell();
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Widget.attach(shell, document.body);
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});
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afterEach(() => {
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shell.dispose();
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});
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describe('#constructor()', () => {
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it('should create a LabShell instance', () => {
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expect(shell).toBeInstanceOf(NotebookShell);
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});
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});
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describe('#widgets()', () => {
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it('should add widgets to existing areas', () => {
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const widget = new Widget();
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shell.add(widget, 'main');
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const widgets = toArray(shell.widgets('main'));
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expect(widgets).toEqual([widget]);
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});
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it('should throw an exception if the area does not exist', () => {
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const jupyterFrontEndShell = shell as JupyterFrontEnd.IShell;
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expect(() => {
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jupyterFrontEndShell.widgets('left');
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}).toThrow('Invalid area: left');
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});
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});
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describe('#currentWidget', () => {
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it('should be the current widget in the shell main area', () => {
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expect(shell.currentWidget).toBe(null);
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const widget = new Widget();
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widget.node.tabIndex = -1;
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widget.id = 'foo';
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expect(shell.currentWidget).toBe(null);
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shell.add(widget, 'main');
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expect(shell.currentWidget).toBe(widget);
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widget.parent = null;
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expect(shell.currentWidget).toBe(null);
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});
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});
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describe('#add(widget, "top")', () => {
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it('should add a widget to the top area', () => {
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const widget = new Widget();
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widget.id = 'foo';
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shell.add(widget, 'top');
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const widgets = toArray(shell.widgets('top'));
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expect(widgets.length).toBeGreaterThan(0);
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});
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it('should accept options', () => {
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const widget = new Widget();
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widget.id = 'foo';
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shell.add(widget, 'top', { rank: 10 });
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const widgets = toArray(shell.widgets('top'));
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expect(widgets.length).toBeGreaterThan(0);
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});
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});
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describe('#add(widget, "main")', () => {
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it('should add a widget to the main area', () => {
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const widget = new Widget();
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widget.id = 'foo';
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shell.add(widget, 'main');
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const widgets = toArray(shell.widgets('main'));
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expect(widgets.length).toBeGreaterThan(0);
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});
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});
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});
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