__tests__/getNavigatorInfo.spec.ts
/**
* @jest-environment jsdom
*/
import { WN } from '../src/constants';
import { getNavigatorInfo } from '../src/getNavigatorInfo';
import mock from './_mock';
describe('getNavigatorInfo', () => {
describe('.getNavigatorInfo()', () => {
it('when navigator is not supported should return an empty object', () => {
(WN as any) = undefined;
expect(getNavigatorInfo()).toEqual({});
});
it('when navigator is supported should return the correct value', () => {
(WN as any) = mock.navigator();
expect(getNavigatorInfo()).toEqual({
deviceMemory: 8,
hardwareConcurrency: 12,
isLowEndDevice: false,
isLowEndExperience: false,
serviceWorkerStatus: 'unsupported',
});
});
it('when navigator is supported but deviceMemory is not', () => {
(WN as any) = mock.navigator();
(WN as any).deviceMemory = undefined;
expect(getNavigatorInfo()).toEqual({
deviceMemory: 0,
hardwareConcurrency: 12,
isLowEndDevice: false,
isLowEndExperience: false,
serviceWorkerStatus: 'unsupported',
});
});
it('when navigator is supported but hardwareConcurrency is not', () => {
(WN as any) = mock.navigator();
(WN as any).hardwareConcurrency = undefined;
expect(getNavigatorInfo()).toEqual({
deviceMemory: 8,
hardwareConcurrency: 0,
isLowEndDevice: false,
isLowEndExperience: false,
serviceWorkerStatus: 'unsupported',
});
});
it('when serviceWorkerStatus is controlled', () => {
(WN as any) = mock.navigator();
(WN as any).serviceWorker = { controller: {} };
expect(getNavigatorInfo()).toEqual({
deviceMemory: 8,
hardwareConcurrency: 12,
isLowEndDevice: false,
isLowEndExperience: false,
serviceWorkerStatus: 'controlled',
});
});
it('when serviceWorkerStatus is supported', () => {
(WN as any) = mock.navigator();
(WN as any).serviceWorker = { controller: null };
expect(getNavigatorInfo()).toEqual({
deviceMemory: 8,
hardwareConcurrency: 12,
isLowEndDevice: false,
isLowEndExperience: false,
serviceWorkerStatus: 'supported',
});
});
});
});