it('should set `null` if the widget is not in the panel', () => {
let panel = new TabPanel();
panel.addWidget(new Widget());
panel.addWidget(new Widget());
panel.currentWidget = new Widget();
expect(panel.currentWidget).to.equal(null);
});
it('should move an existing widget', () => {
let panel = new TabPanel();
let widgets = [new Widget(), new Widget(), new Widget()];
each(widgets, w => { panel.addWidget(w); });
panel.insertWidget(0, widgets[2]);
expect(panel.widgets[0]).to.equal(widgets[2]);
});
it('should set the index of the currently selected tab', () => {
let panel = new TabPanel();
panel.addWidget(new Widget());
panel.addWidget(new Widget());
panel.currentIndex = 1;
expect(panel.currentIndex).to.equal(1);
});
it('should dispose of the resources held by the widget', () => {
let panel = new TabPanel();
panel.addWidget(new Widget());
panel.dispose();
expect(panel.isDisposed).to.equal(true);
panel.dispose();
expect(panel.isDisposed).to.equal(true);
});
it('should set the currently selected tab', () => {
let panel = new TabPanel();
panel.addWidget(new Widget());
let widget = new Widget();
panel.addWidget(widget);
panel.currentWidget = widget;
expect(panel.currentWidget).to.equal(widget);
});
it('should add a widget to the end of the tab panel', () => {
let panel = new TabPanel();
let widgets = [new Widget(), new Widget(), new Widget()];
each(widgets, w => { panel.addWidget(w); });
let widget = new Widget();
panel.addWidget(widget);
expect(panel.widgets[3]).to.equal(widget);
expect(panel.tabBar.titles[2]).to.equal(widgets[2].title);
});
it('should insert a widget into the tab panel at a specified index', () => {
let panel = new TabPanel();
let widgets = [new Widget(), new Widget(), new Widget()];
each(widgets, w => { panel.addWidget(w); });
let widget = new Widget();
panel.insertWidget(1, widget);
expect(panel.widgets[1]).to.equal(widget);
expect(panel.tabBar.titles[1]).to.equal(widget.title);
});
it('should not be emitted when another tab is inserted', () => {
let panel = new TabPanel();
panel.addWidget(new Widget());
panel.addWidget(new Widget());
let called = false;
panel.currentChanged.connect((sender, args) => { called = true; });
panel.insertWidget(0, new Widget());
expect(called).to.equal(false);
});
it('should set the index to `-1` if out of range', () => {
let panel = new TabPanel();
panel.addWidget(new Widget());
panel.addWidget(new Widget());
panel.currentIndex = -2;
expect(panel.currentIndex).to.equal(-1);
panel.currentIndex = 2;
expect(panel.currentIndex).to.equal(-1);
});
it('should not be emitted when another tab is removed', () => {
let panel = new TabPanel();
panel.addWidget(new Widget());
panel.addWidget(new Widget());
let called = false;
panel.currentIndex = 1;
panel.currentChanged.connect((sender, args) => { called = true; });
panel.widgets[0].parent = null;
expect(called).to.equal(false);
});
