feat(register): add test when navigator undefined
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@ -1,6 +1,3 @@
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// Note: we need to import logger from the root
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// because this is the logger used in logError in ../src/common/util
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// import { logger } from "../node_modules/@coder/logger"
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import { commit, getPackageJson, version } from "../src/node/constants"
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import { loggerModule } from "./helpers"
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@ -1,19 +1,17 @@
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import { JSDOM } from "jsdom"
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import { loggerModule } from "./helpers"
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// jest.mock is hoisted above the imports so we must use `require` here.
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jest.mock("@coder/logger", () => require("./helpers").loggerModule)
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describe("register", () => {
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describe("when navigator and serviceWorker are defined", () => {
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const mockRegisterFn = jest.fn()
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beforeAll(() => {
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const { window } = new JSDOM()
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global.window = (window as unknown) as Window & typeof globalThis
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global.document = window.document
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global.navigator = window.navigator
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global.location = window.location
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const mockRegisterFn = jest.fn()
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beforeAll(() => {
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Object.defineProperty(global.navigator, "serviceWorker", {
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value: {
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register: mockRegisterFn,
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@ -21,6 +19,10 @@ describe("register", () => {
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})
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})
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beforeEach(() => {
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jest.mock("@coder/logger", () => loggerModule)
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})
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afterEach(() => {
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mockRegisterFn.mockClear()
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jest.resetModules()
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@ -28,6 +30,12 @@ describe("register", () => {
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afterAll(() => {
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jest.restoreAllMocks()
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// We don't want these to stay around because it can affect other tests
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global.window = (undefined as unknown) as Window & typeof globalThis
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global.document = (undefined as unknown) as Document & typeof globalThis
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global.navigator = (undefined as unknown) as Navigator & typeof globalThis
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global.location = (undefined as unknown) as Location & typeof globalThis
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})
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it("should register a ServiceWorker", () => {
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@ -57,3 +65,24 @@ describe("register", () => {
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)
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})
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})
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describe("when navigator and serviceWorker are NOT defined", () => {
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let spy: jest.SpyInstance
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beforeEach(() => {
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spy = jest.spyOn(console, "error")
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})
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afterAll(() => {
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jest.restoreAllMocks()
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})
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it("should log an error to the console", () => {
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// Load service worker like you would in the browser
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require("../src/browser/register")
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expect(spy).toHaveBeenCalled()
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expect(spy).toHaveBeenCalledTimes(1)
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expect(spy).toHaveBeenCalledWith("[Service Worker] navigator is undefined")
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})
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})
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})
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