/
host.spec.tsx
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/
host.spec.tsx
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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license.
//
// Microsoft Bot Framework: http://botframework.com
//
// Bot Framework Emulator Github:
// https://github.com/Microsoft/BotFramwork-Emulator
//
// Copyright (c) Microsoft Corporation
// All rights reserved.
//
// MIT License:
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED ""AS IS"", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
import * as React from 'react';
import { mount } from 'enzyme';
import { createStore } from 'redux';
import { Provider } from 'react-redux';
import { DialogHostContainer } from './hostContainer';
import { DialogHost } from './host';
jest.mock('./host.scss', () => ({}));
let mockSetHost;
let mockHideDialog;
jest.mock('../service', () => ({
get DialogService() {
return {
setHost: mockSetHost,
hideDialog: mockHideDialog,
};
},
}));
describe('<DialogHost>', () => {
let wrapper;
let node;
let instance;
let mockState;
beforeEach(() => {
mockSetHost = jest.fn(() => null);
mockHideDialog = jest.fn(() => null);
mockState = { dialog: { showing: true } };
wrapper = mount(
<Provider store={createStore((_action, state) => mockState, {})}>
<DialogHostContainer />
</Provider>
);
node = wrapper.find(DialogHost);
instance = node.instance();
});
it('should render deeply', () => {
expect(node.html()).not.toBe(null);
});
it('should add an event listener on mount, and remove on unmount', () => {
const mockAddEventListener = jest.fn(() => null);
const mockRemoveEventLister = jest.fn(() => null);
instance.hostRef.current = {
addEventListener: mockAddEventListener,
removeEventListener: mockRemoveEventLister,
};
instance.componentDidMount();
expect(mockAddEventListener).toHaveBeenCalledWith('dialogRendered', instance.initFocusTrap);
instance.componentWillUnmount();
expect(mockRemoveEventLister).toHaveBeenCalledWith('dialogRendered', instance.initFocusTrap);
});
it('should handle an overlay click', () => {
const mockStopPropagation = jest.fn(() => null);
const mockEvent = { stopPropagation: mockStopPropagation };
instance.handleOverlayClick(mockEvent);
expect(mockStopPropagation).toHaveBeenCalled();
expect(mockHideDialog).toHaveBeenCalled();
});
it('should handle a content click', () => {
const mockStopPropagation = jest.fn(() => null);
const mockEvent = { stopPropagation: mockStopPropagation };
instance.handleContentClick(mockEvent);
expect(mockStopPropagation).toHaveBeenCalled();
});
it('should save a host element reference', () => {
const mockElem = { addEventListener: () => null, name: 'I am a fake element!' };
instance.hostRef.current = mockElem;
instance.componentDidMount();
expect(mockSetHost).toHaveBeenCalledWith(mockElem);
expect(instance.hostRef.current).toBe(mockElem);
});
it('should get all focusable elements in the modal', () => {
// create mock inner dialog
// <div>
// <div><span/><span/></div> // 1 div & 2 spans; all tab-able
// </div>
const hostElement = document.createElement('div');
const mockDialog = document.createElement('div');
const mockSpan1 = document.createElement('span');
const mockSpan2 = document.createElement('span');
mockDialog.setAttribute('tabindex', '0');
mockSpan1.setAttribute('tabindex', '0');
mockSpan2.setAttribute('tabindex', '0');
mockDialog.appendChild(mockSpan1);
mockDialog.appendChild(mockSpan2);
hostElement.append(mockDialog);
instance.hostRef.current = hostElement;
const focusableElements = instance.getFocusableElementsInModal();
expect(focusableElements.length).toBe(3);
});
it('should initialize the focus trap', () => {
const mockFocus = jest.fn(() => null);
const mockGetFocusableElementsInModal = jest.fn(() => {
return [
{ elem: 'elem1' }, // should be focused
{ elem: 'elem2', focus: mockFocus },
{ elem: 'elem3' },
];
});
instance.getFocusableElementsInModal = mockGetFocusableElementsInModal;
instance.initFocusTrap();
expect(mockFocus).toHaveBeenCalled();
});
it('should focus the last focusable element when focusing the first sentinel', () => {
const mockPreventDefault = jest.fn(() => null);
const mockFocusEvent = { preventDefault: mockPreventDefault };
const mockFocusEnabledElement = jest.fn(() => null);
const mockFocusDisabledElement = jest.fn(() => null);
const mockGetFocusableElementsInModal = jest.fn(() => {
return [
{ elem: 'elem1', hasAttribute: () => true },
{
elem: 'elem2',
hasAttribute: () => false,
focus: mockFocusEnabledElement,
}, // should be focused
{
elem: 'disabledElem',
hasAttribute: () => true, // should be skipped because disabled
focus: mockFocusDisabledElement,
},
];
});
instance.hostRef.current = { querySelectorAll: mockGetFocusableElementsInModal };
instance.onFocusStartingSentinel(mockFocusEvent);
expect(mockFocusEnabledElement).toHaveBeenCalled();
expect(mockFocusDisabledElement).not.toHaveBeenCalled();
});
it('should focus the first focusable element when focusing the last sentinel', () => {
const mockPreventDefault = jest.fn(() => null);
const mockFocusEvent = { preventDefault: mockPreventDefault };
const mockFocusEnabledElement = jest.fn(() => null);
const mockFocusDisabledElement = jest.fn(() => null);
const mockGetFocusableElementsInModal = jest.fn(() => {
return [
{
elem: 'disabledElem',
hasAttribute: () => true, // should be skipped because disabled
focus: mockFocusDisabledElement,
},
{
elem: 'elem1',
hasAttribute: () => false,
focus: mockFocusEnabledElement,
}, // should be focused
{ elem: 'elem2', hasAttribute: () => true },
];
});
instance.hostRef.current = { querySelectorAll: mockGetFocusableElementsInModal };
instance.onFocusEndingSentinel(mockFocusEvent);
expect(mockFocusEnabledElement).toHaveBeenCalled();
expect(mockFocusDisabledElement).not.toHaveBeenCalled();
});
});